Published in:
Nephrology Dialysis Transplantation, 39 (2024) Supplement_1
Language:
English
DOI:
10.1093/ndt/gfae069.266
ISSN:
0931-0509;
1460-2385
Origination:
Footnote:
Description:
Abstract Background and Aims Autosomal dominant polycystic kidney disease (ADPKD) is an inherited, complex disease, characterized by cysts formation and phenotypic changes. ADPKD physiopathology is under research, the role of proinflammatory chemokines responsible for perpetuating the cycle of chronic inflammation leading to kidney damage being intensively studied. We aimed to explore the individualized contribution of IL-12 interleukin family members in ADPKD physiopathology. Method We developed a prospective, case control study, in Carol Davila Clinical Hospital of Nephrology, including a group of 66 ADPKD subjects (56.1 years old, men:women 35:32), and a group of 40 healthy subjects, similar as sex, mean age. ADPKD diagnosis was based on familial history, clinical exam and CT or MRI scan. We excluded from the study subjects that presented cysts in other organs except the kidney, with eGFR<60 mL/min/1.73 mp, with history of hematuria, cysts infection, urinary tract infection, renal lithiasis, with unstable blood pressure in the last 6 months. Laboratory tests: serum levels of monomers IL-12 p40 and IL-20 p35 and heterodimers IL-12 p70, IL-23, IL 35, assessed by ELISA method. Statistical analysis. All the results were analyzed using IBM SPSS Statistics 2015 and were presented as average value ± standard deviation. p < 0.05 was considered with statistical significance. Results In ADPKD patients, we detected altered production of IL-12 cytokine, with low production of IL-12 p35 and IL-35, respectively high production of IL-12 p70, IL-23 and IL-12 p40 versus control. IL-12 p35 and IL-35 had statistically significant lower levels in ADPKD patients with eGFR<90 ml/min/1.73 mp, when compared with ADPKD patients with eGFR>90 ml/min/1.73 mp (Table 1). IL-12 p70, IL-23 and IL-12 p40 had statistically significant higher levels in ADPKD patients with eGFR<90 ml/min/1.73 mp, when compared with ADPKD patients with eGFR>90 ml/min/1.73 mp (Table 1). IL-12p70, IL-23 and IL-12 p40 had a negative significant correlation with eGFR, while IL-12p35 and IL-35 had a positive significant correlation with eGFR. Though, IL-12p35 and IL-35 serum levels correlated negatively with IL-12p70, IL-23 and IL-12 p40 serum levels in ADPKD patients. Conclusion The results of the present study suggest that ADPKD is a cellular source of IL-12 family, cytokines produced by antigenic stimulation. IL-12 family programming is abnormal in ADPKD patients. We detected synergic and divergent action of IL-12 cytokine family members, relevant for ADPKD physiopathology.