<abstract xmlns="http://www.w3.org/1999/xhtml"><p> Cathelicidin LL37 is an innate immunity antimicrobial peptide involved in the immune modulation of IFN-<bold>Abstract</bold> Cathelicidin LL37 is an innate immunity antimicrobial peptide involved in the immune modulation of IFN-γ, the key cytokine of T helper cell type 1 (Th1) response. The role of LL37 in viral hepatitis inflammation is unknown. We assessed the serum variations of LL37 and the Th1 response in hepatitis C virus (HCV), hepatitis B virus (HBV) and hepatitis D virus (HDV) infections. The LL37 level (Elisa detection) and Th1 response (defined by IFN-γ level, CD4+ and CD8+ T cell count) were analyzed in 87 patients: 65 hepatitis patients (34 HCV, 18 HBV, 13 HDV) and 22 healthy controls. The subjects, 33 males/ 54 women aged 20-64 years, were selected at "Matei Bals" Institut, Bucharest, Romania. Hepatitis patients were classified according to viral etiology and viral replication as active cases (detectable viremia) versus negative cases (undetectable viremia). Student T test and Mann Whitney analysis were applied. High levels of LL37 (138.09±88.45ng/ml, p=0.045) and IFN-γ (69.82 pg/ml, p=0.005) were detected in the whole group of hepatitis. Active HCV hepatitis presented a significant increase in LL37 level (155.15±78.84ng/ml, p=0.014) and Th1 response by comparison with inactive HCV hepatitis. Conversely active HBV patients displayed low LL37 levels (76.75ng/ml, p=0.009) and no Th1 dominant response by comparison with inactive B hepatitis. High levels of LL37 up to 171.01±72.08 ng/ml and a moderate Th1 response defined HDV patients. Our results highlights increased levels of the cathelicidin LL37 in all viral hepatitis correlated with a strong and concordant immune response in active HCV hepatitis. , the key cytokine of T helper cell type 1 (Th1) response. The role of LL37 in viral hepatitis inflammation is unknown. We assessed the serum variations of LL37 and the Th1 response in hepatitis C virus (HCV), hepatitis B virus (HBV) and hepatitis D virus (HDV) infections. The LL37 level (Elisa detection) and Th1 response (defined by IFN-γ level, CD4+ and CD8+ T cell count) were analyzed in 87 patients: 65 hepatitis patients (34 HCV, 18 HBV, 13 HDV) and 22 healthy controls. The subjects, 33 males/ 54 women aged 20-64 years, were selected at "Matei Bals" Institut, Bucharest, Romania. Hepatitis patients were classified according to viral etiology and viral replication as active cases (detectable viremia) versus negative cases (undetectable viremia). Student T test and Mann Whitney analysis were applied. High levels of LL37 (138.09±88.45ng/ml, p=0.045) and IFN-γ (69.82 pg/ml, p=0.005) were detected in the whole group of hepatitis. Active HCV hepatitis presented a significant increase in LL37 level (155.15±78.84ng/ml, p=0.014) and Th1 response by comparison with inactive HCV hepatitis. Conversely active HBV patients displayed low LL37 levels (76.75ng/ml, p=0.009) and no Th1 dominant response by comparison with inactive B hepatitis. High levels of LL37 up to 171.01±72.08 ng/ml and a moderate Th1 response defined HDV patients. Our results highlights increased levels of the cathelicidin LL37 in all viral hepatitis correlated with a strong and concordant immune response in active HCV hepatitis. </p></abstract>

Cathelicidin LL37 is an innate immunity antimicrobial peptide involved in the immune modulation of IFN-Abstract Cathelicidin LL37 is an innate immunity antimicrobial peptide involved in the immune modulation of IFN-γ, the key cytokine of T helper cell type 1 (Th1) response. The role of LL37 in viral hepatitis inflammation is unknown. We assessed the serum variations of LL37 and the Th1 response in hepatitis C virus (HCV), hepatitis B virus (HBV) and hepatitis D virus (HDV) infections. The LL37 level (Elisa detection) and Th1 response (defined by IFN-γ level, CD4+ and CD8+ T cell count) were analyzed in 87 patients: 65 hepatitis patients (34 HCV, 18 HBV, 13 HDV) and 22 healthy controls. The subjects, 33 males/ 54 women aged 20-64 years, were selected at "Matei Bals" Institut, Bucharest, Romania. Hepatitis patients were classified according to viral etiology and viral replication as active cases (detectable viremia) versus negative cases (undetectable viremia). Student T test and Mann Whitney analysis were applied. High levels of LL37 (138.09±88.45ng/ml, p=0.045) and IFN-γ (69.82 pg/ml, p=0.005) were detected in the whole group of hepatitis. Active HCV hepatitis presented a significant increase in LL37 level (155.15±78.84ng/ml, p=0.014) and Th1 response by comparison with inactive HCV hepatitis. Conversely active HBV patients displayed low LL37 levels (76.75ng/ml, p=0.009) and no Th1 dominant response by comparison with inactive B hepatitis. High levels of LL37 up to 171.01±72.08 ng/ml and a moderate Th1 response defined HDV patients. Our results highlights increased levels of the cathelicidin LL37 in all viral hepatitis correlated with a strong and concordant immune response in active HCV hepatitis. , the key cytokine of T helper cell type 1 (Th1) response. The role of LL37 in viral hepatitis inflammation is unknown. We assessed the serum variations of LL37 and the Th1 response in hepatitis C virus (HCV), hepatitis B virus (HBV) and hepatitis D virus (HDV) infections. The LL37 level (Elisa detection) and Th1 response (defined by IFN-γ level, CD4+ and CD8+ T cell count) were analyzed in 87 patients: 65 hepatitis patients (34 HCV, 18 HBV, 13 HDV) and 22 healthy controls. The subjects, 33 males/ 54 women aged 20-64 years, were selected at "Matei Bals" Institut, Bucharest, Romania. Hepatitis patients were classified according to viral etiology and viral replication as active cases (detectable viremia) versus negative cases (undetectable viremia). Student T test and Mann Whitney analysis were applied. High levels of LL37 (138.09±88.45ng/ml, p=0.045) and IFN-γ (69.82 pg/ml, p=0.005) were detected in the whole group of hepatitis. Active HCV hepatitis presented a significant increase in LL37 level (155.15±78.84ng/ml, p=0.014) and Th1 response by comparison with inactive HCV hepatitis. Conversely active HBV patients displayed low LL37 levels (76.75ng/ml, p=0.009) and no Th1 dominant response by comparison with inactive B hepatitis. High levels of LL37 up to 171.01±72.08 ng/ml and a moderate Th1 response defined HDV patients. Our results highlights increased levels of the cathelicidin LL37 in all viral hepatitis correlated with a strong and concordant immune response in active HCV hepatitis.

The serum level of the immunomodulatory peptide cathelicidin LL37 and T helper cell type 1 inflammatory response in viral hepatitis B, C, and D

The National Institute of Infectious Diseases “Matei Bals”, Popa Nan street, 61, sector 2, 24076, Bucharest, Romania Telephone number 0040724391445

The University of Medicine and Pharmacy “Carol Davila”, Bucharest, Romania

“Titu Maiorescu” University, Bucharest, Romania

Revista Romana de Medicina de Laborator

Cathelicidin LL37 is an innate immunity antimicrobial peptide involved in the immune modulation of IFN-Abstract Cathelicidin LL37 is an innate immunity...

The serum level of the immunomodulatory peptide cathelicidin LL37 and T helper cell type 1 inflammatory response in viral hepatitis B, C, and D

Published Online: Aug 08, 2013

Page range: 101 - 110

DOI: https://doi.org/10.2478/rrlm-2013-0023

This content is open access.