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. 2020 Aug 19;12(8):e9869. doi: 10.7759/cureus.9869

Table 5. Studies validating additional immune responses from the endothelium and renal tubular epithelium in cardiorenal syndrome (CRS) type I.

AUTHOR & YEAR OF PUBLICATION TYPE OF STUDY & # OF PATIENTS PURPOSE OF STUDY CONCLUSION
Clementi et al. [1] 2019 Review  Neurohormonal, endocrine, immune dysregulation and inflammation mechanisms in CRS To insinuate the need for novel drug therapies that cover new mechanisms in CRS.
Virzì et al. [18] 2014 Review Heart--kidney cross-talk and role of humoral signaling in critical illness Damaged cardiac myocytes and renal tubular epithelium promote activation of innate and adaptive immune systems strengthening the humoral response.
Colombo et al. [20] 2012 Review Inflammatory activation: cardiac, renal, and cardio-renal interactions in patients with cardiorenal syndrome To highlight the sustained inflammatory response that is responsible for the functional deterioration of patients with CRS. Existing anti-inflammatory treatment methods have been disappointing to date necessitating new studies.
Virzì et al. [32] 2018 Review The role of dendritic and endothelial cells in CRS Heart and kidney Dendritic cells are involved in tissue remodeling. Additionally, endothelial cells act as antigen-presenting cells and act as a bridge between innate and adaptive immune systems.
Bonventre [45] 2003 Review Dedifferentiation and proliferation of surviving epithelial cells in acute renal failure. The renal epithelium can regenerate and replace dead tubular cells after ischemic-repercussion injury.
Laxmanan et al. [46] 2005 In vitro study CD40: a mediator of pro- and anti-inflammatory signals in renal tubular epithelial cells. CD40 serves a dual purpose, promoting inflammatory ROS and anti-inflammatory heme oxygenase-1. Finding the balance between these two effects has a therapeutic purpose in inflammatory renal disease.