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Updated: Jan 7, 2026
Author Spotlight: Unveiling Transmembrane Protein Family-Related Markers in Gastric Cancer and Implications for Targeted Therapies
Published on: September 15, 2023
Silencing TMEM105 suppresses gastric cancer cell growth and migration via proliferation-associated pathways
Behnoosh Nikonezhad1,2, Mobina Shahriarizade3, Atefeh Zamani4,5
1Genius Gene, Genetics and Biotechnology Company, Isfahan, Iran.
Background:
Numerous studies in the field of cancer indicate that long non-coding RNAs (lncRNAs) play a significant role in the development and malignancy of various cancers. In this study, the expression changes of TMEM105 in gastric cancer (GC) and its association with malignancy were examined.
Methods:
In the in silico section, TMEM105 expression in GC and its correlation with patient prognosis were analyzed using publicly available datasets. Using WGCNA analysis on TCGA data, modules and potential pathways associated with TMEM105 were identified. Expression changes of TMEM105 in GC tissues compared with adjacent healthy tissues were analyzed by RT-qPCR. The expression level of TMEM105 in GC cell lines, including AGS and MKN-45, was modulated using siRNA. The relationship between TMEM105 expression and malignant characteristics, including cell proliferation, migration, and colony formation, was examined in these cell lines.
Results:
TMEM105 was significantly upregulated in public datasets, including TCGA, GSE19826, and GSE54129. TMEM105 expression was associated with advanced disease stage and poor prognosis. WGCNA analysis revealed that TMEM105 expression clustered with genes related to cell proliferation, such as E2F target genes, within the same module. Silencing TMEM105 reduced the viability of GC cell lines and decreased mRNA expression of proliferation-related genes, including E2F1, Cyclin D1, and Ki-67. Silencing TMEM105 markedly reduced migration rates in GC cells. Moreover, TMEM105 expression affected the colony-forming ability of these cell lines.
Conclusion:
High TMEM105 expression in GC is associated with poorer patient outcomes. It appears to influence cellular proliferation and contribute to the development and malignancy of gastric carcinoma. Consequently, TMEM105 could be a valuable therapeutic and prognostic target.
Insights
High TMEM105 expression in gastric cancer (GC) is linked to poor prognosis and increased malignancy. This suggests TMEM105 is a potential therapeutic target for treating this disease.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Long non-coding RNAs (lncRNAs) are implicated in cancer development.
- The role of TMEM105 in gastric cancer (GC) malignancy requires investigation.
Purpose of the Study:
- To examine TMEM105 expression changes in GC.
- To investigate the association between TMEM105 and GC malignancy.
- To evaluate TMEM105 as a potential therapeutic and prognostic target.
Main Methods:
- In silico analysis of TMEM105 expression and prognosis using TCGA and other datasets.
- Weighted gene co-expression network analysis (WGCNA) to identify associated pathways.
- RT-qPCR to confirm TMEM105 expression in GC tissues and cell lines.
- siRNA-mediated knockdown of TMEM105 to assess effects on proliferation, migration, and colony formation.
Main Results:
- TMEM105 was significantly upregulated in GC datasets and associated with advanced stage and poor prognosis.
- TMEM105 expression correlated with cell proliferation genes (e.g., E2F targets).
- TMEM105 knockdown reduced GC cell viability, proliferation markers (E2F1, Cyclin D1, Ki-67), migration, and colony formation.
Conclusions:
- Elevated TMEM105 expression in GC correlates with adverse patient outcomes.
- TMEM105 promotes GC cell proliferation and migration, contributing to malignancy.
- TMEM105 represents a promising therapeutic and prognostic biomarker for gastric cancer.
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