Tmem14a-flox Mouse

Tmem14a, a transmembrane protein, has been implicated in multiple biological processes. It contains a putative transmembrane domain and is an integral transmembrane protein of 99 amino acids with three transmembrane domains [3,4]. While its exact function is still being elucidated, studies suggest it may play roles in apoptosis regulation, cell proliferation, and energy metabolism, and is associated with maintaining the integrity of the glomerular filtration barrier [3,4].

In ovarian cancer, Tmem14a is highly expressed and is correlated with prognostic conditions. It inhibits cell apoptosis, accelerates energy metabolism like glycolysis and oxygen respiration, and is positively correlated with c-Myc. Overexpression of c-Myc can rescue its function, indicating its potential as a diagnostic and prognostic biomarker and a molecular target for therapy [1].

In non-small-cell lung cancer (NSCLC), AXL transcriptionally up-regulates Tmem14a expression to mediate cell proliferation. Silencing Tmem14a reduces cellular proliferation and ATP levels, suggesting it could be a therapeutic target for NSCLC patients undergoing AXL-targeted therapies [2].

In human ovarian cancer cells, knockdown of Tmem14a by RNAi reduces cell proliferation, causes cell cycle arrest, suppresses cell invasion, and down-regulates related proteins and the phosphorylation of Smad2 and Smad3 in the TGF-β signalling pathway, indicating a pro-tumorigenic effect [5].

In zebrafish embryos, knocking down tmem14a mRNA translation results in proteinuria, suggesting its role in maintaining glomerular filtration barrier integrity [4].

In conclusion, Tmem14a is involved in various biological processes, especially in cancer-related events such as cell apoptosis, proliferation, and invasion. Its role in maintaining the integrity of the glomerular filtration barrier is also significant. Functional studies, including those using gene knockdown models, have provided insights into its functions in specific disease conditions, highlighting its potential as a biomarker and therapeutic target in ovarian cancer and NSCLC [1,2,4,5].