4.5 Article

Family with sequence similarity 153 member B as a potential prognostic biomarker of gastric cancer

Journal

MATHEMATICAL BIOSCIENCES AND ENGINEERING
Volume 19, Issue 12, Pages 12581-12600

Publisher

AMER INST MATHEMATICAL SCIENCES-AIMS
DOI: 10.3934/mbe.2022587

Keywords

FAM153B; gastric cancer; proliferation; immune; prognosis

Funding

  1. Natural Science Foundation of Gansu province [20JR10RA685, 21JR11RA099, 21JR1RA117]
  2. Foundation of The First Hospital of Lanzhou University [ldyyyn2018-38, ldyyyn2020-95]

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This study discovers that FAM153B is downregulated in gastric cancer tissues and positively associated with unfavorable survival. Enrichment pathways of FAM153B involve regulation of signaling receptor activity, DNA replication, cell cycle transition, and chromosomal regulation. Additionally, the protein expression level of FAM153B is related to the degree of immune cell infiltration.
Gastric cancer (GC) is one of the most common digestive tumors in Northwest China. Previous sequencing analysis revealed that family with sequence similarity 153 member B (FAM153B) might be the primary driver gene of GC. In this study, we aim to explore the potential roles of FAM153B in GC. Microarray data were firstly obtained from public databases with the aim to evaluate the genetic expression of FAM153B between GC and normal tissues. The results were verified in immunohistochemistry (IHC). We also performed the co-expression network analysis and enrichment analysis to identify underlying mechanisms. A correlation analysis of FAM153B expression and immune infiltration was performed then. Furthermore, two GC cell lines were used to evaluate the effect of FAM153B on gastric cell proliferation by employing MTT and Edu assays. Our findings suggest that FAM153B is downregulated in tumoral tissue, and positively associated with unfavorable survival. The enrichment pathways of FAM153B were regulation of signaling receptor activity, DNA replication, cell cycle transition, chromosomal regulation, and so on. Besides, from the perspective of bioinformatics, the protein expression level of FAM153B is related to the degree of immune cell infiltration. In vitro, overexpression of FAM153B inhibit the proliferation of two cell lines. In summary, this study demonstrates that FAM153B might serve as an effective prognostic and therapeutic biomarker in GC.

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