|
1
|
Qian X, Jiang C, Zhu Z, Han G, Xu N, Ye J, Wang R. Long non-coding RNA LINC00511 facilitates colon cancer development through regulating microRNA-625-5p to target WEE1. Cell Death Dis 2022; 8:233. [PMID: 35477702 PMCID: PMC9046421 DOI: 10.1038/s41420-021-00790-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 09/23/2021] [Accepted: 10/08/2021] [Indexed: 11/23/2022]
Abstract
The altered part of long non-coding RNA LINC00511 (LINC00511) is extensively discussed in malignancies. Finitely, the mechanism of LINC00511 in colon cancer (CC) development lacks thorough explorations. Hence, this work is started from the LINC00511-mediated microRNA (miR)-625-5p/WEE1 axis in the CC process. LINC00511, miR-625-5p, and WEE1 levels were tested in CC tissues and cells. Subcellular localization of LINC00511 was clarified. CC cells were transfected with oligonucleotides that altered LINC00511, and miR-625-5p expression to define their performance in CC cell progression. The tumorigenic ability of cells was verified in xenografted tumors. CC tissues and cells highly expressed LINC00511 and WEE1 and lowly expressed miR-625-5p. LINC00511 was mainly localized in the cytoplasm. Deleted LINC00511 or restored miR-625-5p delayed cellular growth in CC. LINC00511 sponged miR-625-5p to target WEE1. Silenced miR-625-5p mitigated the role of depleted LINC00511, while inhibited WEE1 rescued the effect of silenced miR-625-5p on the biological functions of CC cells. It is summarized that down-regulated LINC00511 obstructs tumorigenesis of CC through restoring miR-625-5p and silencing WEE1, consolidating a basal reference for CC-oriented therapy.
Collapse
Affiliation(s)
- Xiaowu Qian
- Department of Geriatrics, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China.
| | - Chun Jiang
- Department of Cardiology, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China
| | - Zhengtai Zhu
- Department of Geriatrics, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China
| | - Gaohua Han
- Department of Oncology, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China
| | - Ning Xu
- Department of Gastrointestinal Surgery, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China
| | - Jun Ye
- Department of Central Laboratory, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), Taizhou, 225300, Jiangsu, China
| | - Ruixing Wang
- Department of Geriatrics, Taizhou People's Hospital (Taizhou People's Hospital affiliated to Nanjing Medical University), 225300, Taizhou, Jiangsu, China
| |
Collapse
|
|
2
|
Barbosa AM, Martinho O, Nogueira R, Campos J, Lobo L, Pinto H, Longatto-Filho A, Castro AG, Martins SF, Torrado E. Increased CD3 +, CD8 +, or FoxP3 + T Lymphocyte Infiltrations Are Associated with the Pathogenesis of Colorectal Cancer but Not with the Overall Survival of Patients. BIOLOGY 2021; 10:biology10080808. [PMID: 34440038 PMCID: PMC8389643 DOI: 10.3390/biology10080808] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 08/16/2021] [Accepted: 08/18/2021] [Indexed: 12/12/2022]
Abstract
Tumor-infiltrating lymphocytes include heterogeneous populations of T lymphocytes that play crucial roles in the tumor immune response; importantly, their presence in the tumor tissue may predict clinical outcomes. Therefore, we herein studied the prognostic significance of the presence and location of CD3+, CD8+, and FoxP3+ T lymphocytes in colorectal cancer samples. In the intratumor analysis, our data did not reveal any association between lymphocyte infiltrations with clinical or pathological data. However, in the tumor margins, we found that the presence of high infiltrations of CD3+, CD8+, or FoxP3+ T lymphocytes were associated with TNM stages I-II (p = 0.021, p = 0.022, and p = 0.012, respectively) and absence of lymph node metastases (p = 0.010, p = 0.003, and p = 0.004, respectively). Despite these associations with good prognostic indicators, we were not able to find any statistically significant alterations in the overall survival of the patients, even though high infiltrations of FoxP3+ T lymphocytes in the tumor margins resulted in an increased overall survival of 14 months. Taken together, these data show that the presence of CD3+, CD8+, or FoxP3+T lymphocyte infiltrates in the tumor margins are associated with the pathogenesis of CRC, but only high Foxp3+ T lymphocyte infiltrations in the tumor invasive margins are inclined to indicate favorable prognosis.
Collapse
Affiliation(s)
- Ana Margarida Barbosa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (A.M.B.); (O.M.); (R.N.); (J.C.); (L.L.); (H.P.); (A.L.-F.); (A.G.C.); (S.F.M.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Olga Martinho
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (A.M.B.); (O.M.); (R.N.); (J.C.); (L.L.); (H.P.); (A.L.-F.); (A.G.C.); (S.F.M.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Rosete Nogueira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (A.M.B.); (O.M.); (R.N.); (J.C.); (L.L.); (H.P.); (A.L.-F.); (A.G.C.); (S.F.M.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
- CGC Genetics/Centro de Genética Clínica-Unilabs—Laboratory of Pathology, 4000-432 Porto, Portugal
| | - Juliana Campos
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (A.M.B.); (O.M.); (R.N.); (J.C.); (L.L.); (H.P.); (A.L.-F.); (A.G.C.); (S.F.M.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Liliana Lobo
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (A.M.B.); (O.M.); (R.N.); (J.C.); (L.L.); (H.P.); (A.L.-F.); (A.G.C.); (S.F.M.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Henrique Pinto
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (A.M.B.); (O.M.); (R.N.); (J.C.); (L.L.); (H.P.); (A.L.-F.); (A.G.C.); (S.F.M.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Adhemar Longatto-Filho
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (A.M.B.); (O.M.); (R.N.); (J.C.); (L.L.); (H.P.); (A.L.-F.); (A.G.C.); (S.F.M.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
- Laboratory of Medical Investigation (LIM) 14, Faculty of Medicine, University of São Paulo, São Paulo 01246-903, Brazil
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo 14784-400, Brazil
| | - António G. Castro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (A.M.B.); (O.M.); (R.N.); (J.C.); (L.L.); (H.P.); (A.L.-F.); (A.G.C.); (S.F.M.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Sandra F. Martins
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (A.M.B.); (O.M.); (R.N.); (J.C.); (L.L.); (H.P.); (A.L.-F.); (A.G.C.); (S.F.M.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
- Coloproctology Unit, Braga Hospital, 4710-243 Braga, Portugal
| | - Egídio Torrado
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, 4710-057 Braga, Portugal; (A.M.B.); (O.M.); (R.N.); (J.C.); (L.L.); (H.P.); (A.L.-F.); (A.G.C.); (S.F.M.)
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
- Correspondence: ; Tel.: +351-253-604-907
| |
Collapse
|