KDM5B Promotes Cell Migration by Regulating the Noncanonical Wnt/PCP Pathway in Hirschsprung's Disease

Overview

Journal Pediatr Surg Int

Specialties General Surgery
Pediatrics

Date 2021 Aug 29

PMID 34455465

Authors

Ting Yao

Zhilin Xu

Zenghui Hao

You Yu

Bingxue Liang

Shuyu Wang

Affiliations

Soon will be listed here.

Abstract

Purpose: We measured the expression of the histone demethylase lysine-specific demethylase 5B (KDM5B) in the bowels of patients with Hirschsprung's disease (HSCR) and investigated the molecular mechanism by which KDM5B promotes the migration of neuronal PC12 cells.

Methods: KDM5B expression was detected in the ganglionic and aganglionic colon of patients with HSCR (n = 10) and controls (n = 10). The expression and localization of KDM5B were assessed using immunohistochemical and immunofluorescence staining. Real-time PCR and Western blotting were performed to quantify KDM5B expression. The migration was determined using Transwell and wound-healing assays. G-LISA, GTPase pulldown and luciferase-based reporter gene assays were performed to evaluate the key components of Wnt/planar cell polarity (PCP) signaling in vitro.

Results: Our current study showed that KDM5B colocalized with neurons. KDM5B expression was reduced in HSCR specimens, while the aganglionic segments showed the greatest reduction. KDM5B knockdown inhibited the migration of PC12 cells. Moreover, inhibition of KDM5B decreased the expression of key genes in the Wnt/PCP pathway, and its inhibitory effect on PC12 cell migration was reversed by Wnt5a treatment.

Conclusions: KDM5B promotes neuronal migration via the Wnt/PCP pathway. A potential role for KDM5B in altered enteric nervous system development in HSCR warrants further investigation.

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