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. 2025 Nov 21;16:1671839. doi: 10.3389/fimmu.2025.1671839

Table 1.

Roles of different types antibodies secreted by plasma cells in different diseases.

Disease type Antibody type Specimen type Species origin Effect (P/I) Introduction to the mechanism Reference
Circulatory system
 Burkitt lymphoma IgD Cell line Human Promote IgD activates IgDR to initiate the tyrosine phosphorylation signaling cascade to induce the expression of cyclin D3, CDK6, c-myc and inhibit P16INK4a, thereby accelerating the G1/S transition and promoting Daudi cell cycle progression. (47)
 Chronic lymphocytic leukemia IgM Serum Mouse Promote sIgM promotes tumor progression by inducing the accumulation of myeloid-derived suppressor cells. (48)
 IgD multiple myeloma IgD Bone marrow, blood Human Promote (49)
 T-cell acute lymphoblastic leukemia (T-ALL) IgD Plasma, cell line Human, mouse Promote IgD interacts with T cells through its Fc receptor, induces excessive proliferation of T-ALL cells and inhibits their apoptosis (50)
IgD Cell line Human Inhibit IgD interacts with T cells through Fc receptor, inducing excessive proliferation of T-ALL cells and inhibiting their apoptosis. (50)
Digestive system
 Colon cancer IgG4 Tumor tissue Human Promote Induce tolerogenic M2-like macrophages via FcγRI and PI3K/AKT/STAT3 signaling, leading to an immunosuppressive tumor microenvironment (51)
IgM Tumor tissue Human Inhibit Innate immune surveillance; activates complement-dependent cytotoxicity (CDC); enhances innate immune response (52)
IgM Tumor tissue Mouse Inhibit Polyreactive IgM derived from L2pB1 cells is a key factor in cancer cell recognition, tumor growth inhibition, cancer cell death induction and clearance (53)
 Colorectal cancer with liver metastases IgA Tumor tissue Human Promote (54)
 Colorectal cancer IgG Cell line Mouse Promote Promote tumor cell proliferation; reduce cancer cell apoptosis by inhibiting apoptosis-related pathways; enhance invasion and metastasis capabilities by promoting extracellular matrix degradation and cell migration (55)
IgG Tumor tissue Human Promote With a novel sialylated modification in Asn162 of CH1, was widely expressed in cancer stem cells of epithelial cancers, and promoted tumor progression via activating integrin-FAK signaling. (56)
IgG4 Tumor tissue Human Promote Inhibits effector cell activity; competitively inhibits the anti-tumor effects of other IgGs; regulates the immunosuppressive microenvironment (57)
IgG Tumor tissue Human Inhibit (55)
IgA Tumor tissue Human Inhibit
IgA Tumor tissue Human Promote (58)
IgA Intratumoral immune cells Human, Mouse Inhibit FMD abolished the inhibitory effect on CD8+ T cells by reducing the class-switch recombination of B cells to IgA, as FMD drove fatty acid oxidation metabolism in B cells. (59)
IgA Serum Human Promote It seems justified to conclude that elevation of circulating SIgA and SIgM in colorectal cancer patients strongly suggests liver metastasis. (53)
IgM Promote
IgA Serum Human, Mouse Inhibit Targeting Erbin greatly suppressed lung metastasis of CRC by inhibiting PD1 expression of IgA+ B cells, promoting aggregation of IgA+ B cells, and increasing the killing effects of CD8+ T cells on tumor cells. (60)
 Esophageal cancer IgG4 Tumor tissue Human Promote Inhibits effector cell activity; competitively inhibits the anti-tumor effects of other IgGs; regulates the immunosuppressive microenvironment (61)
 Gastric cancer IgA Cell line Mouse Promote IgA PCs were mainly involved in the regulation of phagocytic pathways, such as phagocytosis, and engulfment (62)
 Hepatocellular carcinoma IgM Serum, tumor tissue Mouse Promote IgM promotes tumor metastasis through epithelial-mesenchymal transition mediated by polymeric immunoglobulin receptor (63)
IgM Serum, tumor tissue Human Inhibit (64)
IgA Blood, tumor tissue Human, mouse Promote IgA+ cells induced by inflammation inhibit the activity of T cells by secreting specific immune regulatory factors, thereby weakening the body’s immune surveillance of liver cancer cells. (65)
 Pancreatic cancer IgM Tumor tissue Human Inhibit Innate immune surveillance; activates complement-dependent cytotoxicity (CDC); enhances innate immune response (52)
Gynecological and breast cancer
 Breast cancer IgG Serum Mouse Promote Pathogenic IgG targeting glycosylated membrane HSPA4 selectively promotes lymph node metastasis and activates the downstream Src/NF-κB in ITGB5 and tumor cells for CXCR4/SDF1α axis-mediated metastasis. (66)
IgM Serum Human Inhibit Destroy circulating or seeded isolated disseminated tumor cells (micrometastases) that eventually could lead to metastatic disease and death. (67).
IgM Tumor tissue Human Promote As Breg cells prevent CSR by inhibiting the Tfh/IL21 axis, long-lived plasma cell generation is halted, resulting in lower IgG and a higher fraction of B cells unable to undergo CSR events, resulting in higher IgM. (68)
 Medullary ductal breast cancer IgG Tumor tissue Human Promote (69)
 Triple negative breast cancer IgG Tumor tissue Human Inhibit Through ADCC and CDC, it also reduces tumor proliferation and metastasis potential by inhibiting tumor-promoting cytokines and signaling pathways. (70)
IgG4 Tumor tissue Human Promote Immunosuppressive effects to promote tumor immune escape; inhibit the activation of cytotoxic T cells. (71)
 Endometrial cancer IgA Tumor tissue Human Promote IgA activates inflammatory pathways within tumor cells by binding to polymeric immunoglobulin receptors (pIgR) on tumor cells. (72)
 Ovarian cancer IgG4 Tumor tissue, cell line Human, Mouse Inhibit (71)
IgA Tumor tissue Human Inhibit Transcytosis of IgA sensitize tumor cells to cytotoxic killing by T cells. (73)
IgA Cell line Mouse Inhibit IgA-coated bacteria, a character in OC, was necessary for B-cell activation and for delaying the progression of TRAF3KO tumors. (73)
IgE Tumor tissue, blood and tumor specimens Rat, human Inhibit IgE antibodies recruit macrophages through the TNFα/MCP-1 signaling pathway, enhance anti-tumor immune responses. (74)
Nervous system
 Neuroblastoma IgM Peripheral blood Human Inhibit Direct cytotoxicity; activate immune effector cells; enhance immune response (75)
IgA Cell line, tumor tissue Human, mouse Inhibit IgA GD2 antibodies effectively kill tumor cells by activating neutrophil-mediated ADCC. (76)
Respiratory system
 Lung cancer IgG1 tumor tissue, adjacent tumor sites, blood Human Inhibit Mainly through ADCC and CDC (77)
IgG3 tumor tissue, adjacent tumor sites, blood Human Inhibit Mainly through ADCC and CDC (77)
IgM Tumor tissue Human Inhibit Innate immune surveillance; activates complement-dependent cytotoxicity (CDC); enhances innate immune response (52)
 Non-small cell lung cancer IgG1 Tumor tissue Human Inhibit Mainly through ADCC and CDC (78)
IgG3 Tumor tissue Human Inhibit Mainly through ADCC and CDC (78)
Urogenital system
 Bladder cancer luminal papillary (LumP) subtype IgA Tumor tissue Human Promote Activate inflammatory response pathways and cytokine secretion. (79)
IgG1 Tumor tissue Human Promote Activate inflammatory response pathways and cytokine secretion. (79)
 Bladder cancer luminal unstable (LumU) subtype IgA Tumor tissue Human Promote Activate inflammatory response pathways and cytokine secretion. (79)
IgG1 Tumor tissue Human Inhibit Enhance T-cell responses (79)
 Bladder cancer basal/squamous (Ba/Sq) subtype IgA Tumor tissue Human Inhibit (79)
IgG1 Tumor tissue Human Inhibit Enhance T-cell responses (79)
 Bladder cancer IgG1/IgA Tumor tissue Human inhibit A more prominent expression of costimulatory CD80, increased IL21-mediated signaling, checkpoint regulation, Fcg receptor signaling, and receptor-mediated phagocytosis and endocytosis. (80)
 Prostate cancer IgG Serum Human Promote (81)
Skin
 Cutaneous tumors IgE Epithelial cells Mouse Promote IgE/FcϵRI signaling promotes epithelial cell growth and differentiation in basophils, strongly driving tumor growth of epithelial cells carrying oncogenic mutations. (74)
 Melanoma IgG Serum Human Inhibit (82)
IgG4 Serum Human Promote Inhibit antibody effector function; hinder effective antibody function; promote the formation of an immunosuppressive microenvironment (83)
IgM Cell line, serum Human Inhibit Eliminate subclinical tumor deposits in patients either before or after surgery for stage II melanoma. (84)
IgM Serum Human Inhibit (85)
IgM Myeloid cells Mouse Promote Control BCR signaling, B2 cell development and function, and Th17 cell production of inflammatory cytokines. (86)
IgA1 Tumor tissue Human Promote Propensity for CDRH3 in IgG1, IgG2 and IgA1 supports a highly active yet perturbed B cell compartment at the tumor site. (87)
IgG Tumor tissue Human Promote
Head and neck
Squamous cell carcinoma of the head and neck IgG Serum Human Inhibit (88)