MCM4 acts as a biomarker for LUAD prognosis

Area of Science:

• Molecular Biology
• Oncology

Background:

• Minichromosome maintenance 4 (MCM4) is a component of the MCM2-7 complex, crucial for DNA replication initiation.
• MCM4 has been implicated in the progression of various cancers, including gastric, ovarian, and cervical cancers.

Purpose of the Study:

• To investigate the expression and role of MCM4 in lung adenocarcinoma (LUAD).
• To evaluate MCM4 as a potential therapeutic target for LUAD.

Main Methods:

• Analysis of MCM4 expression in LUAD tumors and cells.
• In vitro studies on LUAD cell proliferation, apoptosis, and cell cycle.
• In vivo xenograft mouse models to assess tumor growth.
• Investigation of MCM4's effect on cell cycle regulators like P21.

Main Results:

• MCM4 was significantly overexpressed in LUAD tissues and cells.
• MCM4 overexpression correlated with poorer overall survival in LUAD patients.
• Elevated MCM4 promoted LUAD cell proliferation and suppressed apoptosis.
• MCM4 knockdown inhibited tumor growth in vivo and induced G1 cell cycle arrest via P21 induction.

Conclusions:

• MCM4 plays a critical role in LUAD progression by promoting proliferation and inhibiting apoptosis.
• MCM4 acts as a DNA helicase and regulates cell cycle progression.
• MCM4 represents a promising therapeutic target for lung adenocarcinoma.