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Wang X, Liang C, Wang S, Ma Q, Pan X, Ran A, Qin C, Huang B, Yang F, Liu Y, Zhang Y, Ren J, Ning H, Li H, Jiang Y, Xiao B. RNA Binding Protein PTBP1 Promotes the Metastasis of Gastric Cancer by Stabilizing PGK1 mRNA. Cells 2024; 13:140. [PMID: 38247832 PMCID: PMC10814388 DOI: 10.3390/cells13020140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 12/31/2023] [Accepted: 01/09/2024] [Indexed: 01/23/2024] Open
Abstract
Gastric cancer (GC) is the most common type of malignant tumor within the gastrointestinal tract, and GC metastasis is associated with poor prognosis. Polypyrimidine tract binding protein 1 (PTBP1) is an RNA-binding protein implicated in various types of tumor development and metastasis. However, the role of PTBP1 in GC metastasis remains elusive. In this study, we verified that PTBP1 was upregulated in GC tissues and cell lines, and higher PTBP1 level was associated with poorer prognosis. It was shown that PTBP1 knockdown in vitro inhibited GC cell migration, whereas PTBP1 overexpression promoted the migration of GC cells. In vivo, the knockdown of PTBP1 notably reduced both the size and occurrence of metastatic nodules in a nude mice liver metastasis model. We identified phosphoglycerate kinase 1 (PGK1) as a downstream target of PTBP1 and found that PTBP1 increased the stability of PGK1 by directly binding to its mRNA. Furthermore, the PGK1/SNAIL axis could be required for PTBP1's function in the promotion of GC cell migration. These discoveries suggest that PTBP1 could be a promising therapeutic target for GC.
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Affiliation(s)
- Xiaolin Wang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
| | - Ce Liang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
| | - Shimin Wang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
| | - Qiang Ma
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
| | - Xiaojuan Pan
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
| | - Ai Ran
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
| | - Changhong Qin
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
| | - Bo Huang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563006, China
| | - Feifei Yang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
| | - Yuying Liu
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
| | - Yuying Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
| | - Junwu Ren
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
| | - Hao Ning
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
| | - Haiping Li
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
| | - Yan Jiang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
| | - Bin Xiao
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (X.W.); (C.L.); (S.W.); (Q.M.); (X.P.); (A.R.); (C.Q.); (B.H.); (F.Y.); (Y.L.); (Y.Z.); (J.R.); (H.N.); (H.L.); (Y.J.)
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