Transcriptional Regulation of GPSM2 by ZNF263 in Colorectal Cancer: Implications for Tumor Aggressiveness

Abstract

Colorectal cancer (CRC) is one of the most prevalent and lethal cancers worldwide and is characterized by uncontrolled cell invasion, migration, and proliferation. The progression of CRC is driven by genetic mutations and alterations in key signaling pathways. This study investigates the role of GPSM2 and ZNF263 implicated in CRC progression. The GPSM2 gene, which regulates G protein signaling pathways, plays a vital role in cell movement and growth, contributing to the metastatic potential of cancer cells. The ZNF263 gene, a zinc finger protein involved in gene expression regulation, is also linked to CRC progression, with its dysregulation affecting the cell cycle, apoptosis, and migration. In particular, this study explores how ZNF263 acts as a transcription factor, modulating the expression of GPSM2 to increase CRC cell invasion, migration, and proliferation. This study confirms that ZNF263 activates the cell cycle pathway in a GPSM2-dependent manner, driving the aggressive behavior of CRC cells. Bioinformatics analysis using the GEO database further supports these findings, identifying key genetic alterations in CRC. These insights provide a deeper understanding of the molecular mechanisms underlying CRC progression and highlight the potential of ZNF263 and GPSM2 as therapeutic targets for intervention. This study underscores the importance of early detection and exploration of targeted therapies to improve CRC patient outcomes.

1. Introduction

Colon cancer, also known as colorectal cancer (CRC), is one of the most prevalent and fatal cancers worldwide. It is characterized by uncontrolled cell growth and division in the colon or rectum, leading to the formation of malignant tumors [1]. CRC typically arises from mutations in normal epithelial cells lining the colon, which progress through a series of genetic alterations, eventually resulting in invasive cancer [2,3]. Early detection and treatment are crucial for improving survival outcomes [4,5]; however, understanding the molecular mechanisms underlying CRC progression remains an active area of research. The progression of CRC hinges on critical cellular mechanisms, including proliferation, migration, and invasion, which are precisely coordinated by a network of genes and signaling pathways.

The progression of colon cancer is closely linked to core cellular mechanisms such as invasion, migration, and proliferation, with dysregulated cell division and the ability of malignant cells to disseminate to distant tissues serving as critical drivers of the disease [6]. In a healthy colon, cell proliferation is tightly regulated, but in colon cancer, genetic mutations and alterations in key signaling pathways lead to the dysregulation of this process [7]. Oncogenic mutations in genes such as KRAS, along with alterations in tumor suppressor genes such as TP53, disrupt normal cell cycle regulation, resulting in uncontrolled proliferation and subsequent tumorigenesis. As tumors grow, cancer cells undergo changes that enable them to migrate and invade surrounding tissues, a process that is crucial for metastasis [8,9]. The epithelial-to-mesenchymal transition (EMT) promotes cellular migration and invasion through the loss of epithelial adhesion traits and the acquisition of a motile mesenchymal phenotype [10]. Additionally, the secretion of proteases such as matrix metalloproteinases (MMPs) aids in the degradation of the extracellular matrix, allowing cancer cells to infiltrate nearby tissues. These processes are interconnected and contribute significantly to the aggressiveness of colon cancer, as the ability of cells to migrate, proliferate, and invade dictates the tumor's potential to spread and form secondary lesions in other parts of the body [11,12].