C3 deficiency promotes pulmonary inflammation in AT1R-induced mouse model for systemic sclerosis.

ABSTRACT:

Introduction

Autoantibody-mediated complement activation plays an essential role in a variety of autoimmune disorders. However, the role of complement in systemic sclerosis (SSc) remains largely unknown. In this study, we aimed to determine the role of complement C3 in the development of a recently described SSc mouse model based on autoimmunity to angiotensin II receptor type 1 (AT1R).

Methods

Mice were immunized with cell membrane extract isolated from Chinese hamster ovary (CHO) cells overexpressing AT1R or non-transfected CHO cells as a control. Peripheral blood, dorsal skin and the lung were then collected to evlauate disease characteristics. Apoptotic cells in the lung of mice were detected using the DeadEnd™ Fluorometric TUNEL System.

Results

Our results showed

SUBMITTER: Yin J 

PROVIDER: S-EPMC11683138 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature