Macrophage phenotypic switch orchestrates the inflammation and repair/regeneration following acute pancreatitis injury.

ABSTRACT:

Background

Impaired or hyperactive pancreas regeneration after injury would cause exocrine insufficiency or recurrent / chronic pancreatitis and potentially carcinogenesis. Macrophages are the most abundant immune cells in the regenerative pancreas, however their phenotype and role remain poorly defined.

Method

Using caerulein-induced acute pancreatitis (AP) model, we examined the dynamic landscape of pancreatic macrophages throughout the acute inflammation to regeneration phases by flow cytometric and RNA-seq analyses. Liposome depletion of macrophages, Il4ra^-/- mice as well as inhibitors were used to elucidate the role and regulatory mechanism of macrophages during pancreatic regeneration.

Findings

We found that M1 macrophages dominated in the pro-inflamm

SUBMITTER: Wu J 

PROVIDER: S-EPMC7399125 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature