Aim: To investigate clinical significance of Pin1 and beta-catenin expression in colorectal cancers and to demonstrate the relationship of their expression.
Methods: The role of Pin1 and beta-catenin protein in colorectal tumorigenesis and their clinicopathologic significance were analyzed by immunohistochemistry, and the correlation between Pin1 and beta-catenin protein expressions was also studied in 124 patients with colorectal cancer who were surgically treated.
Results: Normal colonic epithelium either failed to express or showed focal and weak expression of Pin1 and beta-catenin. Overexpression of Pin1 and beta-catenin protein was found in 23 (18.54%) and 50 (40.3%) of 124 colorectal cancers, respectively. Overexpression of both proteins was not related to the lymph node metastasis, tumor stage and survival period after excision. Survival analysis results indicated that tumor stage was a valuable predictor of survival. Interestingly, a significant correlation was found between Pin1 and beta-catenin protein expression.
Conclusion: Overexpression of Pin1 and beta-catenin may be closely related with the development and/or progression of colorectal carcinoma and further supports that Pin1 overexpression might contribute to the upregulation of beta-catenin.
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http://dx.doi.org/10.3748/wjg.v11.i32.5006 | DOI Listing |
Biochim Biophys Acta Rev Cancer
September 2024
Department of Surgery, Division of Surgical Oncology, University of Illinois at Chicago, Chicago, IL 60612, USA; University of Illinois Hospital and Health Sciences System Cancer Center, University of Illinois at Chicago, Chicago, IL 60612, USA; Jesse Brown VA Medical Center, Chicago, IL 60612, USA. Electronic address:
Mixed-lineage kinase 3 (MLK3) is a serine/threonine kinase of the MAPK Kinase kinase (MAP3K) family that plays critical roles in various biological processes, including cancer. Upon activation, MLK3 differentially activates downstream MAPKs, such as JNK, p38, and ERK. In addition, it regulates various non-canonical signaling pathways, such as β-catenin, AMPK, Pin1, and PAK1, to regulate cell proliferation, apoptosis, invasion, and metastasis.
View Article and Find Full Text PDFInt Immunopharmacol
October 2023
Department of Respiratory and Critical Care Medicine, The First People's Hospital of Xuzhou, the Affiliated Xuzhou Municipal Hospital of Xuzhou Medical University, Xuzhou 221100, PR China. Electronic address:
Recent evidence has highlighted the involvement of microRNAs (miRs) in hypoxic pulmonary hypertension (PH), which can be induced under hypoxic conditions. We intend to explore whether the miR-328a-5p/PIN1 axis affects hypoxic PH by regulating the GSK3β/β-catenin signaling pathway. The GEO database was retrieved to single out key miRs affecting hypoxic PH.
View Article and Find Full Text PDFCell Commun Signal
June 2023
Cancer Biology Laboratory, Faculty of Life Science and Biotechnology, South Asian University, Rajpur Road, Maidangarhi, New Delhi, 110068, India.
Breast cancer is one of the most common cancers with a high mortality rate, underscoring the need to identify new therapeutic targets. Here we report that non-POU domain-containing octamer-binding (NONO) protein is overexpressed in breast cancer and validated the interaction of the WW domain of PIN1 with c-terminal threonine-proline (thr-pro) motifs of NONO. The interaction of NONO with PIN1 increases the stability of NONO by inhibiting its proteasomal degradation, and this identifies PIN1 as a positive regulator of NONO in promoting breast tumor development.
View Article and Find Full Text PDFPharmacol Res
October 2022
Fujian Key Laboratory of Translational Research in Cancer and Neurodegenerative Diseases, The School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350122, China. Electronic address:
The development of tumor therapeutic resistance is one of the important reasons for the failure of antitumor therapy. Starting with multiple targets and multiple signaling pathways is helpful in understanding the mechanism of tumor resistance. The overexpression of prolyl isomerase Pin1 is highly correlated with the malignancy of cancer, since Pin1 controls many oncogenes and tumor suppressors, as well as a variety of cancer-driving signaling pathways.
View Article and Find Full Text PDFJ Gastrointest Cancer
June 2022
Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
Background: Deregulated PIN1 is associated with cancer development and progression. Herein, for the first time, we evaluate the roles that PIN1 in tumorigenic characteristics of colorectal cancer (CRC) cells.
Methods: In this study, PIN1 expression was knocked down in SW-48 cells by synthetic small interfering RNA (siRNA).
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