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Updated: Apr 20, 2026

The Murine Choline-Deficient, Ethionine-Supplemented CDE Diet Model of Chronic Liver Injury
Published on: October 21, 2017
Alternative complement pathway component Factor D contributes to efficient clearance of tissue debris following acute
Gail A Cresci1, Daniela Allende2, Megan R McMullen3
1Department of Gastroenterology, Cleveland Clinic, Cleveland, OH 44195, USA; Department of Pathobiology, Cleveland Clinic, Cleveland, OH 44195, USA.
Abstract:
Complement, part of the innate immune system, is involved with immune protection against invading pathogens as well as cell survival and tissue regeneration. It is known that complement activation is required for timely hepatocyte recovery following an acute toxic injury, but which pathway of complement activation is involved in response to hepatocyte injury has not been identified. In these studies we utilize mice deficient in C1qa, C4 and Factor D, lacking the classical, classical/MBL, and alternative pathways of complement activation, respectively, to identify an essential role for Factor D in the ability of the liver to recover from acute toxic injury. Here we demonstrate that following an acute CCl4-induced injury, the involvement of the alternative complement pathway is essential for efficient liver recovery.
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