Cornus officinalis Fruit in the Modulation of Aging-Related Cellular Pathways: a short review

Abstract

The fruits of Cornus officinalis Sieb. et Zucc. (Corni Fructus) have a long history of use in East Asian traditional medicine, particularly for managing weakness and age-related functional decline. Recent experimental evidence has suggested that its biological activities correspond to key features of cellular aging. This review summarizes current preclinical findings on the ability of Corni Fructus to modulate biological processes associated with cellular aging, focusing on redox homeostasis, mitochondrial function, inflammatory signaling, and cellular quality control pathways. Corni Fructus contains abundant iridoid glycosides, particularly morroniside and loganin, which are considered to be its primary bioactive compounds. Studies have indicated that these compounds reduce oxidative stress by decreasing excessive reactive oxygen species and enhancing the antioxidant defense systems of the body. Furthermore, Corni Fructus constituents help maintain mitochondrial integrity by stabilizing mitochondrial membrane potential, limiting oxidative stress within mitochondria, and supporting cellular energy metabolism. Modulation of inflammation is another important aspect, as suppression of nuclear factor-kappa B and mitogen-activated protein kinase signaling pathways has been associated with decreased production of proinflammatory mediators associated with senescence-related secretory phenotypes. Emerging evidence also suggests that Corni Fructus may influence autophagy and mitophagy mechanisms, contributing to cellular stress adaptation. Together, these multitarget actions maintain cellular homeostasis and mitigate key drivers of cellular aging. Although direct evidence linking Corni Fructus to canonical senescence endpoints remains limited, existing findings provide a mechanistic basis for its potential relevance to modulating aging- and senescence-associated cellular processes. Further studies using aging-relevant models and direct senescence measures are necessary to better understand its translational potential.

INTRODUCTION

Aging is a complex biological process characterized by the progressive accumulation of cellular damage, including mitochondrial dysfunction, oxidative stress, genomic instability, and impaired proteostasis. Mitochondrial dysfunction plays a crucial role by disrupting cellular energy metabolism and increasing reactive oxygen species (ROS) production, which can further damage DNA, proteins, and lipids. Concurrently, declining antioxidant defense systems exacerbate redox imbalance and accelerate cellular deterioration [1, 2]. Aging is also closely associated with chronic low-grade inflammation, or “inflammaging,” driven by persistent activation of innate immune responses and the accumulation of cellular damage signals. Impairment of cellular quality control systems, such as autophagy, further promotes the accumulation of dysfunctional organelles and misfolded proteins, compromising cellular homeostasis.

These interconnected alterations promote cellular senescence, which is characterized by irreversible growth arrest and the secretion of proinflammatory factors, known as the senescence-associated secretory phenotype (SASP). Senescent cell accumulation disrupts tissue function and contributes to organismal frailty and age-related diseases [2, 3]. Accordingly, attention has increasingly focused on natural products that can modulate multiple hallmarks of aging in an integrated manner rather than targeting a single pathway, thereby promoting healthy aging [4, 5].

The fruits of Cornus officinalis Sieb. et Zucc. are widely used in traditional East Asian medicine to manage conditions associated with fatigue, metabolic imbalance, and age-related functional decline [5, 6]. In classical formulations, it has been prescribed to support systemic vitality and restore physiological homeostasis, prompting interest in the investigation of its potential role in aging-related disorders. Experimental studies have begun elucidating the biological activities of C. officinalis fruit (Corni Fructus), demonstrating cytoprotective, antioxidant, and anti-inflammatory properties across diverse cellular and animal models [7, 8]. Phytochemical analyses have identified multiple bioactive constituents in Corni Fructus, such as iridoid glycosides (e.g., loganin and morroniside), polyphenols, and organic acids, which are considered to contribute to its pleiotropic biological effects. These compounds have been reported to attenuate oxidative stress by enhancing endogenous antioxidant systems, preserve mitochondrial integrity under stress, and modulate inflammatory signaling pathways, such as nuclear factor-kappa B (NF-κB) and mitogen-activated protein kinase (MAPK). Emerging evidence also suggests that Corni Fructus may influence cellular quality control mechanisms, including autophagy and proteostasis, thereby helping maintain cellular homeostasis under stress [8, 9].

Although direct evidence linking Corni Fructus to canonical cellular senescence markers remains limited, accumulating data indicate that it targets several upstream regulators of aging-associated phenotypes. By modulating redox balance, mitochondrial function, and inflammatory responses, Corni Fructus may indirectly suppress cellular dysfunction progression that contributes to senescence [10, 11]. Thus, Corni Fructus may influence multiple biological processes associated with cellular aging and potentially modulate the progression of senescence-related cellular dysfunction.

This review aims to provide an integrated overview of current preclinical evidence supporting the antiaging potential of Corni Fructus, focusing on its roles in redox regulation, mitochondrial protection, inflammatory modulation, and cellular quality control pathways.

LITERATURE SEARCH STRATEGY

A literature search was conducted during June 2026 on PubMed, Scopus, Web of Science, and Google Scholar to identify studies on the biological effects of Corni Fructus and its major bioactive constituents in aging-related cellular processes. Search terms included combinations of “C. officinalis,” “Corni Fructus,” “morroniside,” and “loganin” with “aging,” “oxidative stress,” “mitochondrial dysfunction,” “inflammation,” “autophagy,” “mitophagy,” “cellular senescence,” “frailty,” “pharmacopuncture,” and “herbal acupuncture.” Original experimental studies and relevant review articles published in English were considered, and studies that provided mechanistic evidence on redox regulation, mitochondrial function, inflammatory signaling, and cellular quality control pathways were prioritized. Studies irrelevant to these biological processes or providing insufficient mechanistic information were excluded. Because this article was designed as a short narrative review rather than a systematic review, studies were selected based on their relevance to the mechanistic framework of aging-related cellular pathway modulation.

PRECLINICAL EVIDENCE AND MECHANISMS OF ACTION

1. Bioactive constituents of Corni Fructus

Corni Fructus contains diverse bioactive constituents, with iridoid glycosides considered as the primary contributors to its pharmacological activity (Table 1). Representative iridoids such as morroniside and loganin have been extensively characterized and are widely used as reference compounds for quality assessment and standardization of Corni Fructus preparations [9, 11, 12]. These compounds are relatively stable and reproducible across preparations, making them suitable indicators of extract consistency and bioactivity. Corni Fructus also contains secondary metabolites such as polyphenolic compounds, organic acids, polysaccharides, and minor flavonoids, which may collectively contribute to its biological effects (Fig. 1) [6, 9]. Rather than functioning independently, these constituents are considered to exert complementary or synergistic effects, particularly in redox regulation and cellular stress responses. For example, polyphenols possess radical-scavenging properties, whereas polysaccharides have been implicated in immunomodulatory and cytoprotective functions, suggesting a multilayered mechanism of action.

Table 1.

Bioactive constituents of Corni Fructus and their reported biological activities

Constituent class	Representative compounds	Reported biological activities	Relevance to aging-related hallmarks
Iridoid glycosides	Morroniside, Loganin, Cornuside	Antioxidant, cytoprotective, anti-inflammatory, mitochondrial protection	Regulation of redox homeostasis; attenuation of oxidative stress–induced damage; mitochondrial stabilization
Polyphenols/Phenolic acids	Gallic acid derivatives, ellagic acid-related compounds	Antioxidant, anti-inflammatory	ROS scavenging; modulation of redox-sensitive signaling pathways
Flavonoids (minor components)	Quercetin, kaempferol derivatives (trace levels)	Antioxidant activity	Supportive role in oxidative stress control
Polysaccharides	Acidic and neutral polysaccharide fractions	Immunomodulatory, antioxidant, cytoprotective	Attenuation of chronic inflammatory responses; support of cellular resilience
Organic acids	Malic acid, citric acid, tartaric acid	Metabolic and antioxidant support	Contribution to cellular metabolic homeostasis
Other minor constituents	Amino acids, trace volatile compounds	Nutritional and supportive effects	Indirect support of stress adaptation

Figure 1.

Bioactive constituents of Corni Fructus. Schematic illustrating major bioactive constituents identified in Corni Fructus. The principal pharmacologically active components are iridoid glycosides such as morroniside, loganin, and cornuside. Other constituents include polyphenols and phenolic acids (e.g., gallic acid derivatives), polysaccharides, organic acids (e.g., malic, citric, and tartaric acids), minor flavonoids, amino acids, and trace volatile compounds. Together, these constituents provide a chemical basis for the reported antioxidant, cytoprotective, and stress-modulating properties of Corni Fructus and its potential relevance to aging-related biological processes.

Functionally, iridoid glycosides have been consistently associated with antioxidant, anti-inflammatory, and cytoprotective activities in various in vitro and in vivo models [6, 9, 13]. These effects are often attributed to modulation of intracellular signaling pathways involved in oxidative stress responses and inflammation, thereby helping maintain cellular homeostasis under adverse conditions. Accumulating evidence also suggests that these compounds may influence mitochondrial function and cellular quality control processes, which are increasingly recognized as key determinants of aging and age-related diseases.

Overall, the chemical composition of Corni Fructus provides a mechanistic basis for its broad biological activities and supports its potential role as a multitarget modulator of aging-associated cellular processes. Representative experimental studies including the preparation used, experimental model, dose or concentration, and major endpoints are summarized in Table 2.

Table 2.

Representative preclinical studies on the aging-related biological activities of Corni Fructus and its major constituents

Preparation	Model/type	Experimental context	Major endpoints	Main findings	Ref.
Corni Fructus extract	Cell/animal model	Oxidative stress	ROS, antioxidant enzymes, Nrf2	Reduced oxidative stress	[12, 17, 29]
Morroniside	Myoblast model	Oxidative injury	ROS, cell viability, ER stress	Attenuated oxidative and ER stress	[23]
Morroniside	Animal/cellular model	Neuronal injury	ΔΨm, mtROS, mitochondrial function	Preserved mitochondrial integrity	[18, 26-29]
Loganin	Cell/animal	Oxidative/inflammatory stress	Nrf2, NF-κB, cytokines	Antioxidant/anti-inflammatory effects	[8, 18, 20-22]
Corni Fructus/iridoids	Cell/animal	Inflammatory stress	NF-κB, MAPK, ILs, TNF-α	Suppressed inflammatory signaling	[33-35]
Morroniside	Disease-specific model	Autophagy-related dysfunction	AMPK, TFEB, autophagy markers	Modulated cellular quality control	[43-45]

Doses, concentrations, treatment durations, and detailed experimental protocols varied considerably among studies according to the experimental model, preparation, and route of administration; readers are therefore referred to the original studies for these study-specific details.

2. Antioxidant and redox-regulatory effects

Oxidative stress is widely recognized as a central driver of cellular senescence and organismal aging. An imbalance between ROS production and endogenous antioxidant capacity results in oxidative damage to critical biomolecules such as DNA, lipids, and proteins. This redox imbalance compromises cellular integrity and activates stress-responsive signaling pathways such as MAPK, NF-κB, and p53, thereby promoting the establishment of senescence-associated phenotypes [14, 15]. In addition to direct macromolecular damage, excessive ROS generation disrupts mitochondrial function, further amplifying oxidative stress and contributing to a self-perpetuating cycle of cellular dysfunction. In parallel, oxidative stress can impair key cellular processes such as energy metabolism, proteostasis, and genomic stability, all of which contribute to the progressive decline in cellular function during aging. Thus, the maintenance of redox homeostasis has emerged as a critical target for interventions aimed at delaying or attenuating senescence [15, 16].

Accordingly, attention has increasingly focused on natural compounds that modulate intracellular redox balance through direct and indirect mechanisms. These include scavenging of ROS, enhancement of endogenous antioxidant defenses, and regulation of redox-sensitive signaling pathways. Such multifaceted actions may be particularly relevant to interventions targeting upstream drivers of cellular aging rather than solely their downstream consequences.

Several experimental studies have reported that Corni Fructus extracts and their major iridoid constituents attenuate intracellular ROS accumulation under oxidative stress [9, 17]. Rather than acting solely through direct radical scavenging, these compounds appear to reinforce endogenous antioxidant defense systems. In models of ischemia–reperfusion injury and chemically induced oxidative damage, cornel iridoid glycosides have been shown to activate adaptive cellular responses that enhance resistance to oxidative insults. The modulation of the nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway, a key regulator of cellular redox homeostasis, is central to this effect. Nrf2 activation upregulates phase II detoxifying and antioxidant enzymes, including heme oxygenase-1 and NAD(P)H:quinone oxidoreductase 1, thereby strengthening cellular defenses against oxidative stress [18, 19].

Notably, individual iridoid glycosides such as morroniside and loganin have been reported to exert distinct regulatory effects on these redox-sensitive pathways [20-22]. Although both compounds contribute to antioxidant responses, their differential modulation of signaling cascades suggests functional specialization, potentially facilitating complementary or synergistic interactions within complex extracts. Studies in muscle-derived C2C12 myoblasts have shown that morroniside alleviates ROS-induced cellular damage and suppresses stress-associated signaling events, thereby preserving cellular viability under oxidative challenge [23]. Considering the vulnerability of skeletal muscle to oxidative imbalance during aging, these findings provide relevant cellular evidence supporting the protective effects of Corni Fructus constituents.

Collectively, these observations indicate that Corni Fructus enhances intrinsic redox-buffering systems by regulating stress-responsive signaling pathways and antioxidant enzyme expression rather than functioning solely as a passive ROS scavenger. This mode of action is consistent with the modulation of upstream processes implicated in cellular aging and senescence-associated dysfunction.

3. Mitochondrial protection and metabolic homeostasis

Mitochondrial dysfunction is a hallmark of aging and a critical contributor to cellular senescence development. Age-associated changes including loss of mitochondrial membrane potential, reduced electron transport chain efficiency, and excessive mitochondrial ROS (mtROS) production disrupt cellular energy metabolism and contribute to bioenergetic decline [24, 25]. These alterations impair adenosine triphosphate (ATP) generation and activate stress-responsive signaling pathways that drive senescence-associated phenotypes. In addition, dysfunctional mitochondria promote oxidative damage and the release of mitochondria-derived danger signals, further potentially amplifying inflammatory and cellular stress responses. Ineffective removal of damaged mitochondria through mitophagy exacerbates this process, resulting in the persistence of dysfunctional organelles and reinforcing a cycle of metabolic imbalance and oxidative stress. Accordingly, maintaining mitochondrial integrity and turnover is an important determinant of cellular longevity.

Emerging evidence suggests that interventions that preserve mitochondrial function may mitigate these age-associated changes. Stabilizing mitochondrial membrane potential, improving respiratory efficiency, and limiting mtROS production substantially influence aging. Modulation of mitochondrial quality control pathways, including mitophagy and mitochondrial biogenesis, has also been proposed as an effective approach to restore metabolic homeostasis and delaying senescence [24, 25]. Thus, supporting mitochondrial function while maintaining redox balance is an important mechanism by which bioactive compounds may exert antiaging effects at the cellular level.

Building on these concepts, accumulating experimental evidence indicates that Corni Fructus constituents exert protective effects on mitochondrial structure and function across diverse cellular stress models. In neuronal injury and metabolic dysfunction models, morroniside has been reported to preserve mitochondrial membrane potential, attenuate mtROS generation, and maintain mitochondrial respiratory activity, thereby preventing bioenergetic collapse under stress conditions [26, 27]. These mitochondria-stabilizing effects are commonly associated with inhibition of intrinsic apoptotic pathways, including reduced cytochrome c release and caspase activation, highlighting the importance of mitochondrial integrity in determining cell fate under oxidative and metabolic stress [28, 29]. Morroniside may also influence interorganelle communication. In muscle-derived C2C12 myoblasts, its ability to reduce oxidative stress has been associated with improved mitochondrial function and attenuated endoplasmic reticulum (ER) stress, suggesting coordinated regulation of mitochondrial–ER crosstalk [23]. This interaction is particularly relevant to aging, in which disrupted organelle communication contributes to proteostatic imbalance and cellular dysfunction.

Although direct evidence regarding mitochondrial biogenesis and dynamics (e.g., fission–fusion balance) remains limited, existing evidence indicates that Corni Fructus plays a role in maintaining mitochondrial quality. By maintaining membrane potential, reducing mtROS accumulation, and limiting mitochondria-mediated apoptotic signaling, its bioactive components may support cellular energy metabolism and stress adaptation. Collectively, these effects position Corni Fructus as a modulator of mitochondrial homeostasis, an important determinant of cellular aging.

4. Anti-inflammatory effects and relevance to SASP modulation

Chronic, low-grade inflammation, commonly referred to as inflammaging, is a characteristic feature of aging and is closely associated with the development and persistence of the SASP [2, 30]. SASP components such as proinflammatory cytokines, chemokines, growth factors, and matrix-remodeling enzymes reinforce the senescent state through autocrine signaling and propagate inflammatory signals to neighboring cells through paracrine effects. This amplification loop contributes to tissue dysfunction, impaired regeneration, and age-related pathology progression [31, 32]. At the molecular level, SASP expression is primarily regulated by stress-responsive pathways such as NF-κB and p38 MAPK signaling, which are activated in response to persistent DNA damage, oxidative stress, and mitochondrial dysfunction [3, 8, 9]. Sustained activation of these pathways promotes a proinflammatory microenvironment that disrupts tissue homeostasis and accelerates functional decline. In addition, inflammatory mediators released by senescent cells can increase oxidative stress and mitochondrial impairment, establishing a feed-forward cycle that reinforces cellular aging.

Because of this interplay, modulating inflammatory signaling has emerged as a key strategy to attenuate the SASP and its detrimental effects. Interventions that suppress key inflammatory pathways or reduce the production of SASP factors are particularly relevant to senostatic approaches because they aim to limit the effects of senescent cells without necessarily eliminating them. Accordingly, natural compounds that regulate inflammation in a balanced and multitarget manner have gained attention as potential modulators of age-associated inflammatory processes.

Consistent with this framework, Corni Fructus extracts and their iridoid constituents have exhibited reproducible anti-inflammatory effects across various preclinical models. These effects are frequently associated with attenuation of NF-κB-dependent signaling, resulting in reduced transcription of proinflammatory mediators, including interleukins and tumor necrosis factor-α [33-35]. In several inflammatory and metabolic stress models, decreased activation of upstream kinases and reduced nuclear translocation of NF-κB accompany this suppression, suggesting that Corni Fructus modulates inflammation at the signaling and transcriptional levels. Considering the crucial role of NF-κB in regulating SASP gene expression [36], these findings provide a mechanistic basis for its potential to reduce senescence-associated inflammatory outputs. In addition to NF-κB, emerging evidence indicates that Corni Fructus may influence other inflammation-related pathways such as MAPK and cytokine-mediated signaling, contributing to a broader anti-inflammatory profile. This multitarget modulation is particularly relevant to aging, in which inflammatory signaling is sustained by complex, overlapping regulatory networks. By attenuating these pathways, Corni Fructus may interrupt the feed-forward loop among oxidative stress, mitochondrial dysfunction, and inflammatory activation that contributes to SASP maintenance.

Although direct evaluation of canonical SASP markers in validated senescent cell systems remains limited, the consistent suppression of inflammatory mediators suggests that Corni Fructus may influence signaling pathways that also participate in SASP regulation [37, 38]. These observations provide a rationale for future studies examining whether Corni Fructus directly modulates SASP phenotypes in senescent cells [9]. Such an approach may be advantageous for long-term interventions because it could preserve tissue integrity while minimizing chronic inflammatory burden. Collectively, these findings suggest that Corni Fructus can modulate key inflammatory pathways involved in SASP, potentially contributing to the maintenance of tissue homeostasis during aging.

5. Regulation of autophagy and cellular quality control pathways

Autophagy and mitophagy are essential components of the cellular quality control network that clears damaged proteins, aggregated macromolecules, and dysfunctional organelles. Through these processes, cells maintain proteostasis and organelle integrity, thereby preserving cellular homeostasis under basal and stress conditions. However, autophagic flux and selective mitophagy progressively decline with age, resulting in the accumulation of defective mitochondria and misfolded proteins that contribute to cellular dysfunction and senescence [39, 40]. Impairment of these quality control pathways exacerbates oxidative stress and metabolic imbalance and promotes the activation of aging-associated stress-responsive signaling cascades. In particular, defective mitophagy allows ROS-generating mitochondria to persist, reinforcing redox imbalance and inflammatory signaling. In contrast, tightly regulated autophagy activation has been shown to alleviate cellular stress, improve metabolic adaptability, and delay senescence-related phenotypes.

Notably, autophagy operates within a relatively narrow physiological range. Although insufficient autophagic activity contributes to the accumulation of cellular damage, excessive or dysregulated activation may result in self-digestion and tissue atrophy, particularly in metabolically active tissues such as skeletal muscle [41, 42]. Therefore, balanced and context-dependent autophagy regulation is critical for cellular and tissue homeostasis. Accordingly, modulation of autophagy and mitophagy has emerged as a key target for interventions aimed at promoting healthy aging. Strategies that restore or refine these pathways, rather than indiscriminately activating them, can more effectively preserve long-term cellular function and resilience.

Recent studies have suggested that morroniside modulates autophagy-related signaling networks, particularly the AMP-activated protein kinase (AMPK)–transcription factor EB (TFEB) axis, in disease-relevant models [43-45]. AMPK activation serves as an important energy-sensing mechanism that promotes autophagic initiation, whereas TFEB regulates lysosomal biogenesis and autophagy-related gene expression. Through coordinated regulation of these pathways, morroniside appears to enhance autophagic capacity and facilitate the clearance of damaged cellular components. Activation of the AMPK–TFEB axis has been associated with improved cellular quality control, reduced inflammasome activation, and increased resistance to metabolic and oxidative stress [46, 47]. These effects are particularly relevant in the context of aging, in which impaired autophagic flux and lysosomal dysfunction contribute to cellular damage accumulation and proinflammatory signaling persistence. By restoring or reinforcing these pathways, morroniside may help reestablish intracellular homeostasis and limit stress-induced cellular dysfunction.

Although current evidence does not directly establish a causal association between these mechanisms and classical senescence endpoints, the observed regulation of autophagy and lysosomal function provides mechanistic insights into the potential influence of Corni Fructus on aging-related processes. Considering the vital role of autophagy and mitophagy in maintaining mitochondrial quality and proteostasis, further studies using senescence-specific models and direct assessments of autophagic flux are necessary to clarify the extent to which these pathways contribute to the potential senostatic effects of Corni Fructus.

6. Implications for aging and frailty

The biological activities of Corni Fructus correspond to several key hallmarks of aging, including mitochondrial dysfunction, oxidative stress, chronic inflammation, and impaired cellular quality control systems [6, 7, 22, 48]. As discussed in previous sections, its bioactive constituents collectively influence redox regulation, mitochondrial integrity, inflammatory signaling, and autophagy-related pathways, which are closely interconnected in the aging process. Rather than acting on a single molecular target, Corni Fructus appears to modulate multiple upstream drivers of cellular dysfunction, thereby helping maintain cellular homeostasis under stress. This multitarget mode of action is particularly relevant to aging and frailty, in which complex and overlapping biological processes contribute to progressive physiological decline. By attenuating oxidative damage, preserving mitochondrial function, limiting chronic inflammatory signaling, and promoting cellular quality control mechanisms, Corni Fructus may help maintain cellular resilience and adaptive capacity. These effects are consistent with a systems-level approach to aging, with the aim of suppressing individual pathological events and restoring overall homeodynamic balance.

From a translational perspective, these characteristics support further examination of Corni Fructus as a multitarget intervention for aging-associated cellular dysfunction. Unlike senolytic approaches, which directly eliminate senescent cells, regulation of upstream processes such as oxidative stress, mitochondrial dysfunction, inflammation, and impaired cellular quality control may serve as an alternative strategy for limiting age-associated functional decline. Accordingly, the ability of Corni Fructus to regulate key aging-related pathways without inducing overt cytotoxicity or excessive pathway activation may be beneficial for long-term use (Fig. 2).

Figure 2.

Integrated model of aging-related cellular pathways modulated by Corni Fructus. Schematic illustrating the integrated biological actions of Corni Fructus on key pathways associated with cellular aging. Bioactive iridoid glycosides such as morroniside and loganin help maintain redox homeostasis by reducing excessive ROS accumulation and enhancing endogenous antioxidant defense pathways. Corni Fructus also preserves mitochondrial integrity by stabilizing mitochondrial membrane potential, decreasing mitochondrial ROS generation, and supporting cellular energy metabolism. Because of redox and mitochondrial regulation, attenuation of inflammatory signaling pathways, including NF-κB and mitogen-activated protein kinases, reduces the production of senescence-associated inflammatory mediators and limit SASP-related amplification. Modulation of autophagy and mitophagy through quality control pathways, including AMPK–TFEB signaling, facilitates the clearance of damaged proteins and dysfunctional organelles. Together, these actions may help maintain cellular homeostasis and resilience by modulating interconnected biological processes associated with aging and senescence-related dysfunction.

Furthermore, because frailty indicates a decline in systemic physiological reserve involving multiple organ systems, interventions that can simultaneously target redox balance, energy metabolism, inflammation, and cellular quality control may be more therapeutically relevant. Overall, existing evidence suggests that Corni Fructus may help maintain functional integrity and stress adaptability, supporting its potential role in mitigating age-associated decline and frailty.

7. Translational perspectives for Corni Fructus–based pharmacopuncture

Although most pharmacological studies involving Corni Fructus and its bioactive constituents have employed oral administration or conventional experimental exposure, limited evidence suggests its potential applications in pharmacopuncture. A preclinical study examined herbal acupuncture using Corni Fructus extract at Eumgok (KI10) in ovariectomized mice and reported favorable changes in several bone-related parameters, including increased tibial calcium and phosphorus levels and reduced numbers of osteoclast-like cells, although bone mineral density was not markedly improved [49]. This study provides preliminary evidence of the feasibility and biological activity of Corni Fructus–based pharmacopuncture. However, pharmacopuncture-specific studies are scarce, and its potential applications in aging and frailty have not been systematically examined.

Pharmacopuncture may serve as a distinct route for delivering standardized herbal preparations while incorporating acupoint stimulation. Unlike conventional oral administration, direct injection bypasses gastrointestinal processing and may alter the exposure and distribution of bioactive constituents. However, it remains unclear whether these characteristics confer pharmacokinetic or therapeutic advantages for Corni Fructus, as direct comparisons between oral and pharmacopuncture administration are lacking. Developing an injectable Corni Fructus preparation requires rigorous standardization and safety assessment. Furthermore, extraction procedures, composition, pH, osmolarity, stability, sterility, endotoxin levels, and local tissue compatibility should be carefully controlled. Quantification of representative constituents, particularly morroniside and loganin, may also be important to ensure preparation reproducibility.

Future studies should establish standardized Corni Fructus pharmacopuncture preparations and characterize their safety, pharmacokinetics, and tissue distribution profiles. Direct comparisons with oral administration would help determine whether pharmacopuncture produces distinct biological or pharmacological effects. Subsequent studies using validated aging- and frailty-relevant models should evaluate molecular endpoints associated with oxidative stress, mitochondrial function, inflammatory signaling, and cellular quality control pathways along with functional outcomes such as muscle mass and strength, physical performance, metabolic resilience, and tissue regenerative capacity. These studies would help determine whether the aging-related biological activities currently attributed to Corni Fructus can be translated into a scientifically defined pharmacopuncture strategy.

LIMITATIONS AND FUTURE DIRECTIONS

Despite increasing evidence supporting the biological activities of Corni Fructus, several key limitations persist. Most previous studies involved acute injury settings or disease-specific models, which may not fully replicate the complexity of chronic aging. In particular, direct evaluations of canonical cellular senescence endpoints remain scarce. Key biomarkers such as senescence-associated β-galactosidase activity and cyclin-dependent kinase inhibitors, including p16INK4a and p21CIP1, have not been systematically assessed in studies of Corni Fructus. Comprehensive profiling of SASP components across cell types and tissues also remains lacking.

Another limitation is the mechanistic depth of current studies. Although accumulating data suggest that Corni Fructus influences redox balance, mitochondrial function, inflammatory signaling, and autophagy-related pathways, these effects have often been examined independently. An integrated understanding of interactions among these processes, particularly within the redox–mitochondria–inflammation–autophagy axis, remains to be established. Furthermore, direct assessments of autophagic flux, mitophagy activity, and mitochondrial dynamics (e.g., fission–fusion balance and biogenesis) are limited, making it difficult to determine the precise role of cellular quality control mechanisms in mediating these effects. Future studies should focus on physiologically relevant aging models, including long-term in vivo studies and senescence-driven cellular systems. Such approaches would enable direct evaluation of senescence markers and clarify whether Corni Fructus exerts senostatic or senomorphic effects. Comparative and component-resolved studies are necessary to elucidate the distinct and potentially synergistic roles of individual iridoid glycosides such as morroniside and loganin in modulating aging-related pathways.

Future translational studies should incorporate functional endpoints relevant to aging and frailty, including muscle function, metabolic resilience, and tissue regenerative capacity. Integration of multiomics approaches and systems-level analyses may further clarify the network-based mechanisms underlying the biological effects of Corni Fructus. Addressing these gaps will be essential for establishing a comprehensive, mechanistically grounded framework for evaluating Corni Fructus in aging- and frailty-related interventions.

CONCLUSIONS

Accumulating preclinical evidence indicates that Corni Fructus modulates several cellular aging–associated biological processes such as oxidative stress, mitochondrial dysfunction, chronic inflammation, and impaired cellular quality control systems. Through coordinated modulation of redox balance, mitochondrial integrity, inflammatory signaling, and autophagy-related pathways, Corni Fructus appears to promote cellular homeostasis and stress adaptability under aging-related conditions. Although direct evidence demonstrating the modulation of canonical cellular senescence endpoints remains limited, the convergence of these activities provides a mechanistic rationale for further investigation of Corni Fructus in aging- and senescence-relevant models. Its multitarget and context-dependent actions may be relevant to the complex and interconnected biological processes underlying age-associated functional decline.

This systems-level regulatory profile is consistent with perspectives emphasizing modulation of functional decline and maintenance of physiological resilience rather than the elimination of senescent cells alone. Thus, Corni Fructus may hold particular promise as an intervention for mitigating frailty and preserving organismal function during aging. Future studies integrating mechanistic, cellular, and functional outcomes, particularly in long-term and clinically relevant models, are necessary to establish its translational potential. A more comprehensive understanding of its bioactive constituents and their coordinated effects will further elucidate its potential role in the broader context of antiaging strategies.