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Tsai MC, Huang CC, Wei YC, Liu TT, Lin MT, Yi LN, Lin PR, Wang CC, Chu TH, Hsiao CC, Hu TH, Tai MH. Combined Chibby and β-Catenin Predicts Clinical Outcomes in Patients with Hepatocellular Carcinoma. Int J Mol Sci 2020; 21:ijms21062060. [PMID: 32192213 PMCID: PMC7139567 DOI: 10.3390/ijms21062060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 03/14/2020] [Accepted: 03/15/2020] [Indexed: 12/15/2022] Open
Abstract
Chibby is an antagonist of β-catenin and is considered a potential tumor suppressor protein, but the role of Chibby in hepatocellular carcinoma (HCC) has not been characterized. The expression patterns of Chibby and β-catenin in HCC specimens and paired adjacent noncancerous tissues were measured by Western blotting and immunohistochemistry. The correlations between Chibby expression and clinicopathological parameters were analyzed. Then the biological functions of Chibby were analyzed in vitro. The Chibby protein was significantly downexpressed in human primary HCC tissues compared to that in matched adjacent normal liver tissue and is a risk factor for HCC recurrence and shorter survival. Furthermore, we found that in HCC tissues the high expression of β-catenin with low expression of Chibby in the nuclei was an independent predictor for disease-free survival (DFS) (p = 0.012) and overall survival (OS) (p = 0.005). Subsequent genetic manipulation in vitro studies revealed that Chibby knockdown induced the expression of β-catenin and C-myc, cyclin D1 protein, which promoted cell proliferation and invasiveness. In contrast, overexpression of Chibby decreased β-catenin expression and inhibited the cell proliferation and invasiveness. Our results suggest that low expression of Chibby was associated with advanced tumor-node-metastasis (TNM) stage and poor differentiation. Furthermore, the combination of Chibby and β-catenin can predict poor prognosis in patients with HCC. Chibby inhibited HCC progression by blocking β-catenin signaling in vitro. Chibby is a biomarker and may be a potential therapeutic target for HCC.
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Affiliation(s)
- Ming-Chao Tsai
- Division of Hepato-Gastroenterology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan; (M.-C.T.); (M.-T.L.); (L.-N.Y.); (P.-R.L.)
- Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Taoyuan City 33302, Taiwan
| | - Chao-Cheng Huang
- Department of Pathology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan; (C.-C.H.); (T.-T.L.)
| | - Yu-Ching Wei
- Department of Pathology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 80145, Taiwan;
| | - Ting-Ting Liu
- Department of Pathology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan; (C.-C.H.); (T.-T.L.)
- Department of Medical Laboratory Science, I-Shou University, Kaohsiung 84001, Taiwan
| | - Ming-Tsung Lin
- Division of Hepato-Gastroenterology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan; (M.-C.T.); (M.-T.L.); (L.-N.Y.); (P.-R.L.)
- Graduate Institute of Clinical Medical Sciences, Chang Gung University College of Medicine, Taoyuan City 33302, Taiwan
| | - Li-Na Yi
- Division of Hepato-Gastroenterology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan; (M.-C.T.); (M.-T.L.); (L.-N.Y.); (P.-R.L.)
| | - Pey-Ru Lin
- Division of Hepato-Gastroenterology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan; (M.-C.T.); (M.-T.L.); (L.-N.Y.); (P.-R.L.)
| | - Chih-Chi Wang
- Department of Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan;
| | - Tian-Huei Chu
- Biobank and Tissue Bank, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan;
| | - Chang-Chun Hsiao
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Division of Pulmonary and Critical Care Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan;
| | - Tsung-Hui Hu
- Division of Hepato-Gastroenterology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan; (M.-C.T.); (M.-T.L.); (L.-N.Y.); (P.-R.L.)
- Correspondence: (T.-H.H.); (M.-H.T.); Tel.: +886-7-731-7123 (ext. 8301) (T.-H.H.); Tel.: +886-7-525-2000 (ext. 5816) (M.-H.T.); Fax: +886-7-732-2402 (T.-H.H.); Fax: +886-7-525-0197 (M.-H.T.)
| | - Ming-Hong Tai
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
- Correspondence: (T.-H.H.); (M.-H.T.); Tel.: +886-7-731-7123 (ext. 8301) (T.-H.H.); Tel.: +886-7-525-2000 (ext. 5816) (M.-H.T.); Fax: +886-7-732-2402 (T.-H.H.); Fax: +886-7-525-0197 (M.-H.T.)
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2
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Li FQ, Chiriboga L, Black MA, Takemaru KI, Raffaniello RD. Chibby is a weak regulator of β-catenin activity in gastric epithelium. J Cell Physiol 2018; 234:1871-1879. [PMID: 30063079 DOI: 10.1002/jcp.27062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 06/26/2018] [Indexed: 11/06/2022]
Abstract
The canonical Wnt-β-catenin pathway is important in normal development. Mutations in β-catenin or proteins involved with regulating its phosphorylation or localization result in its nuclear accumulation where it activates its target genes and stimulates cell proliferation. This pathway is dysregulated in many different types of cancer, including gastric cancer (GC). Chibby (Cby) is a 14-kDa protein that inhibits β-catenin localization to the nucleus and represses β-catenin-induced transcriptional activity. In the current study, we examined the expression and function of Cby in normal and cancerous human gastric tissue. Reverse-transcription polymerase chain reaction and immunohistochemistry revealed that Cby is expressed in human stomach and localized to glandular elements. Immunohistochemical staining intensity of Cby was decreased in GC tissue when compared with normal gastric epithelium. In AGS cells, a human gastric carcinoma cell line, Cby expression was low. Stable AGS cell transfectants overexpressing Cby were prepared. Cby overexpression did not affect proliferation rates or β-catenin levels. However, confocal microscopy and subcellular fractionation studies revealed that Cby overexpression resulted in a small decrease in nuclear β-catenin. Moreover, Cby overexpression caused a molecular weight shift in nuclear β-catenin and resulted in decreased β-catenin signaling in AGS cells as measured by the TopFlash assay. However, Cby overexpression did not affect c-Myc protein levels. To conclude, Cby expression was decreased in GC samples and Cby expression altered β-catenin localization in cultured GC cells. However, Cby did not affect cell proliferation rates or β-catenin-induced protein expression. Cby may be involved in the early events in the pathogenesis of GC.
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Affiliation(s)
- Feng-Qian Li
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, New York
| | - Luis Chiriboga
- Department of Pathology, New York University Langone Medical Center, New York
| | - Margaret A Black
- Department of Pathology, New York University Langone Medical Center, New York
| | - Ken-Ichi Takemaru
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, New York
| | - Robert D Raffaniello
- Department of Medical Laboratory Sciences, Hunter College, School of Arts and Sciences, New York
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3
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Ruan L, Sun J, Zhou C, Shi H, Lei K. Cloning, identification and function analysis of a Chibby homolog from Litopenaeus vannamei. FISH & SHELLFISH IMMUNOLOGY 2018; 78:114-120. [PMID: 29689303 DOI: 10.1016/j.fsi.2018.04.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 04/10/2018] [Accepted: 04/18/2018] [Indexed: 06/08/2023]
Abstract
Chibby, a vital inhibitor molecule of Wnt/β-catenin signaling pathway, participates in development and stem cell differentiation through the regulation of β-catenin. Our previous studies have demonstrated that Litopenaeus vannamei β-catenin (Lv-β-catenin) was involved in WSSV infection and could inhibit virus replication by modulating the host immune system. In the study, a Chibby homolog from L. vannamei (designed as Lv-Chibby) was isolated and its role in WSSV infection was investigated. Sequence analysis suggested that Lv-Chibby was a novel homolog of Chibby family. It could transcript in all examined tissues, including hemocyte, gill, intestine, hepatopancreas, muscle and heart. Real-time quantitative PCR demonstrated that Lv-Chibby could take part in WSSV infection and be down-regulated by WSSV. Further studies confirmed that Lv-Chibby was able to interact with Lv-β-catenin. Moreover, the relationship of Lv-β-catenin, Lv-Chibby and WSSV069 was investigated. It was shown that Lv-Chibby enhanced the interaction between Lv-β-catenin and WSSV069. Interestingly, WSSV069 promoted the interaction between Lv-β-catenin and Lv-Chibby under high concentration, while low concentration of WSSV069 inhibited their interaction. A subsequent immunofluorescence assay revealed that WSSV069 appeared to reduce the nuclear entry of Lv-β-catenin. In sum, these results implied that Wnt/β-catenin signal pathway plays an important role in the defense against virus, and Chibby could be modulated by WSSV to regulate the signal pathway.
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Affiliation(s)
- Lingwei Ruan
- State Key Laboratory Breeding Base of Marine Genetic Resources, Key Laboratory of Marine Genetic Resources of State Oceanic Administration, Third Institute of Oceanography, State Oceanic Administration, Fujian Key Laboratory of Marine Genetic Resources, South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Xiamen 361005, PR China.
| | - Jiazhen Sun
- State Key Laboratory Breeding Base of Marine Genetic Resources, Key Laboratory of Marine Genetic Resources of State Oceanic Administration, Third Institute of Oceanography, State Oceanic Administration, Fujian Key Laboratory of Marine Genetic Resources, South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Xiamen 361005, PR China; School of Life Science, University of Science and Technology of China, Hefei 230000, PR China
| | - Congzhao Zhou
- School of Life Science, University of Science and Technology of China, Hefei 230000, PR China
| | - Hong Shi
- State Key Laboratory Breeding Base of Marine Genetic Resources, Key Laboratory of Marine Genetic Resources of State Oceanic Administration, Third Institute of Oceanography, State Oceanic Administration, Fujian Key Laboratory of Marine Genetic Resources, South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Xiamen 361005, PR China
| | - Kaiyu Lei
- BGI Clinical Laboratories (Shenzhen) Co., Ltd, Shenzhen 518083, PR China
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Cai CF, Liu LM, Shangguan HJ, Liu CS, Luo XY, Li YM. Anti-oncogenic activity of Chibby in the development of human nasopharyngeal carcinoma. Oncol Lett 2018; 15:5849-5858. [PMID: 29552214 DOI: 10.3892/ol.2018.8009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 12/11/2017] [Indexed: 01/16/2023] Open
Abstract
The Wnt/β-catenin pathway serves important roles in cancer development. The expression and function of Chibby (Cby), as a direct antagonist of β-catenin, in nasopharyngeal carcinoma (NPC) has not been fully investigated. The present study revealed that the mRNA and protein expression of Cby was significantly lower in NPC tissue than in the adjacent normal tissue. Low expression of Cby was significantly associated with the tumor and the clinical staging. Furthermore, Cby overexpression inhibited the proliferation of human NPC SUNE1 cells and induced cell cycle arrest. In addition, Cby overexpression also significantly enhanced the susceptibility of SUNE1 cells to apoptosis. These results indicated that Cby might serve as an anti-oncogenic gene in the development of NPC and could represent a potential therapeutic target for the human NPC therapy.
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Affiliation(s)
- Cheng-Fu Cai
- Department of Otorhinolaryngology, Head and Neck Surgery, The First Affiliated Hospital, Medical College, Xiamen University, Xiamen, Fujian 361003, P.R. China
| | - Li-Man Liu
- Institute of Stem Cell and Regeneration Medicine, Institutions of Biomedical Science, Fudan University, Shanghai 200031, P.R. China
| | - Han-Jing Shangguan
- Department of Otorhinolaryngology, Head and Neck Surgery, The First Affiliated Hospital, Medical College, Xiamen University, Xiamen, Fujian 361003, P.R. China
| | - Cun-Shan Liu
- Department of Otorhinolaryngology, Head and Neck Surgery, The First Affiliated Hospital, Medical College, Xiamen University, Xiamen, Fujian 361003, P.R. China
| | - Xian-Yang Luo
- Department of Otorhinolaryngology, Head and Neck Surgery, The First Affiliated Hospital, Medical College, Xiamen University, Xiamen, Fujian 361003, P.R. China
| | - Yi-Meng Li
- Department of Otorhinolaryngology, Affiliated Eye and ENT Hospital of Fudan University, Shanghai 200031, P.R. China
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5
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Yang MC, Chien ST, Yang TF, Lin SY, Lee TM, Hong YR. Downregulation of nuclear and cytoplasmic Chibby is associated with advanced cervical cancer. Oncol Lett 2017; 14:6632-6644. [PMID: 29181101 PMCID: PMC5696723 DOI: 10.3892/ol.2017.7050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Accepted: 06/09/2017] [Indexed: 11/06/2022] Open
Abstract
Chibby has been identified as a putative tumor suppressor and antagonist to β-catenin, thereby controlling the Wnt signaling pathway. Chibby is typically downregulated in numerous types of cancer and may be associated with tumorigenesis. The present study aimed at clarifying the following: i) Whether Chibby antagonizes β-catenin in cervical cancer; ii) whether Chibby and β-catenin mRNA expression is associated with cancer progression; and iii) whether Chibby and β-catenin expression may be used as a biomarker. A total of 87 paraffin-embedded cervical sections with distinct cervical intraepithelial neoplasia (CIN) stages (chronic cervicitis, CIN 1, CIN 2, CIN 3 and invasive squamous cell carcinoma) were collected between June 2004 and October 2012 The mRNA expression level of Chibby and β-catenin was determined using the polymerase chain reaction. Protein expression and cellular localization of Chibby and β-catenin were determined using immunohistochemistry. Chibby and β-catenin were analyzed for possible association with the progression of cervical cancer. Chibby mRNA expression and the Chibby/β-catenin ratio were identified to be downregulated in invasive tumors. Positive cytoplasmic and nuclear staining for Chibby was associated with CIN staging and decreased as the CIN stage increased. In addition, the cytoplasmic and membrane intensity of β-catenin was associated with invasive tumors, in which a significantly increased level of protein expression was detected. Chibby may be a tumor suppressor in cervical cancer, since the dysregulation of Chibby expression is associated with tumorigenesis in cervical cancer. Chibby and β-catenin expression together may potentially to a biomarker for disease progression in cervical cancer.
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Affiliation(s)
- Ming-Chang Yang
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, R.O.C.,Laboratory of Medical Research, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan, R.O.C
| | - Shang-Tao Chien
- Department of Pathology, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan, R.O.C.,Department of Medical Laboratory Sciences and Biotechnology, Fooyin University, Kaohsiung 83102, Taiwan, R.O.C
| | - Tzu-Feng Yang
- Laboratory of Medical Research, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan, R.O.C.,Department of Psychiatry, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan, R.O.C
| | - Shih-Yi Lin
- Department of Pathology, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan, R.O.C
| | - Tai-Min Lee
- Department of Pathology, Kaohsiung Armed Forces General Hospital, Kaohsiung 80284, Taiwan, R.O.C
| | - Yi-Ren Hong
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, R.O.C.,Department of Biochemistry, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, R.O.C.,Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, R.O.C
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6
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Fischer V, Wong M, Li FQ, Takemaru KI. Chibby1 knockdown promotes mesenchymal-to-epithelial transition-like changes. Cell Cycle 2017; 16:448-456. [PMID: 28107095 DOI: 10.1080/15384101.2017.1281478] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Chibby1 (Cby1) was originally isolated as a binding partner for β-catenin, a dual function protein in cell-cell adhesion and in canonical Wnt signaling. The canonical Wnt/β-catenin pathway is dysregulated in various diseases including cancer, most notably of the gastrointestinal origin. To investigate the role of Cby1 in colorectal tumorigenesis, we generated stable Cby1-knockdown (KD) SW480 colon cancer cells. Unexpectedly, we found that Cby1 KD induces mesenchymal-to-epithelial transition (MET)-like changes in SW480 as well as in HEK293 cells. Cby1-KD cells displayed a cuboidal epithelial morphology with tight cell-cell contacts. In Cby1-KD cells, the plasma membrane localization of E-cadherin and β-catenin was dramatically increased with formation of cortical actin rings, while the levels of the mesenchymal marker vimentin were decreased. Consistent with these changes, in wound healing assays, Cby1-KD cells exhibited epithelial cell-like properties as they migrated collectively as epithelial sheets. Furthermore, the anchorage-independent growth of Cby1-KD cells was reduced as determined by soft agar assays. These findings suggest that chronic Cby1 KD in colon cancer cells may counteract tumor progression by promoting the MET process.
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Affiliation(s)
- Victoria Fischer
- a Graduate Program in Molecular and Cellular Pharmacology, Stony Brook University , Stony Brook , NY , USA
| | - Michael Wong
- b Department of Pharmacological Sciences , Stony Brook University , Stony Brook , NY , USA
| | - Feng-Qian Li
- a Graduate Program in Molecular and Cellular Pharmacology, Stony Brook University , Stony Brook , NY , USA.,b Department of Pharmacological Sciences , Stony Brook University , Stony Brook , NY , USA
| | - Ken-Ichi Takemaru
- a Graduate Program in Molecular and Cellular Pharmacology, Stony Brook University , Stony Brook , NY , USA.,b Department of Pharmacological Sciences , Stony Brook University , Stony Brook , NY , USA
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7
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Ayadi M, Bouygues A, Ouaret D, Ferrand N, Chouaib S, Thiery JP, Muchardt C, Sabbah M, Larsen AK. Chronic chemotherapeutic stress promotes evolution of stemness and WNT/beta-catenin signaling in colorectal cancer cells: implications for clinical use of WNT-signaling inhibitors. Oncotarget 2016; 6:18518-33. [PMID: 26041882 PMCID: PMC4621907 DOI: 10.18632/oncotarget.3934] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 04/29/2015] [Indexed: 02/05/2023] Open
Abstract
Most solid tumors contain a subfraction of cells with stem/progenitor cell features. Stem cells are naturally chemoresistant suggesting that chronic chemotherapeutic stress may select for cells with increased “stemness”. We carried out a comprehensive molecular and functional analysis of six independently selected colorectal cancer (CRC) cell lines with acquired resistance to three different chemotherapeutic agents derived from two distinct parental cell lines. Chronic drug exposure resulted in complex alterations of stem cell markers that could be classified into three categories: 1) one cell line, HT-29/5-FU, showed increased “stemness” and WNT-signaling, 2) three cell lines showed decreased expression of stem cell markers, decreased aldehyde dehydrogenase activity, attenuated WNT-signaling and lost the capacity to form colonospheres and 3) two cell lines displayed prominent expression of ABC transporters with a heterogeneous response for stem cell markers. While WNT-signaling could be attenuated in the HT-29/5-FU cells by the WNT-signaling inhibitors ICG-001 and PKF-118, this was not accompanied by any selective growth inhibitory effect suggesting that the cytotoxic activity of these compounds is not directly linked to WNT-signaling inhibition. We conclude that classical WNT-signaling inhibitors have toxic off-target activities that need to be addressed for clinical development.
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Affiliation(s)
- Meriam Ayadi
- Cancer Biology and Therapeutics, Centre de Recherche Saint-Antoine, Paris, France.,Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France.,Institut Universitaire de Cancérologie, Pierre et Marie Curie (UPMC) Sorbonne Universités, Paris, France
| | - Anaïs Bouygues
- Cancer Biology and Therapeutics, Centre de Recherche Saint-Antoine, Paris, France.,Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France.,Institut Universitaire de Cancérologie, Pierre et Marie Curie (UPMC) Sorbonne Universités, Paris, France
| | - Djamila Ouaret
- Cancer Biology and Therapeutics, Centre de Recherche Saint-Antoine, Paris, France.,Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France.,Institut Universitaire de Cancérologie, Pierre et Marie Curie (UPMC) Sorbonne Universités, Paris, France
| | - Nathalie Ferrand
- Cancer Biology and Therapeutics, Centre de Recherche Saint-Antoine, Paris, France.,Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France.,Institut Universitaire de Cancérologie, Pierre et Marie Curie (UPMC) Sorbonne Universités, Paris, France
| | - Salem Chouaib
- Institut National de la Santé et de la Recherche Médicale (INSERM), Gustave-Roussy, Villejuif, France
| | - Jean-Paul Thiery
- Institute of Molecular and Cell Biology, A*STAR (Agency for Science, Technology and Research), Singapore, Singapore.,Department of Biochemistry, School of Medicine, National University of Singapore, Singapore.,Cancer Science Institute, National University of Singapore, Singapore
| | - Christian Muchardt
- Laboratory of Epigenetic Regulation, Centre National de la Recherche Scientifique (CNRS), Institut Pasteur, Paris, France
| | - Michèle Sabbah
- Cancer Biology and Therapeutics, Centre de Recherche Saint-Antoine, Paris, France.,Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France.,Institut Universitaire de Cancérologie, Pierre et Marie Curie (UPMC) Sorbonne Universités, Paris, France
| | - Annette K Larsen
- Cancer Biology and Therapeutics, Centre de Recherche Saint-Antoine, Paris, France.,Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France.,Institut Universitaire de Cancérologie, Pierre et Marie Curie (UPMC) Sorbonne Universités, Paris, France
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The high expression of TC1 (C8orf4) was correlated with the expression of β-catenin and cyclin D1 and the progression of squamous cell carcinomas of the tongue. Tumour Biol 2015; 36:7061-7. [DOI: 10.1007/s13277-015-3423-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Accepted: 04/06/2015] [Indexed: 12/18/2022] Open
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9
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Dovrat S, Caspi M, Zilberberg A, Lahav L, Firsow A, Gur H, Rosin-Arbesfeld R. 14-3-3 and β-catenin are secreted on extracellular vesicles to activate the oncogenic Wnt pathway. Mol Oncol 2014; 8:894-911. [PMID: 24721736 DOI: 10.1016/j.molonc.2014.03.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 03/12/2014] [Indexed: 12/15/2022] Open
Abstract
Aberrant activation of the canonical Wnt signal transduction pathway is involved in a large number of human diseases. β-catenin, the key effector protein of the canonical Wnt pathway, functions in the nucleus with T-cell factor/lymphoid enhancer factor (TCF/LEF) to activate expression of Wnt target genes. Here we show that members of the 14-3-3 protein family bind disheveled-2 (Dvl-2) and glycogen synthase-3β (GSK-3β) to attenuate the interaction between GSK-3β and β-catenin. Importantly, 14-3-3 and β-catenin form "bleb-like" structures and are secreted via extracellular vesicles to induce Wnt signaling activity in target cells. Our data suggest a novel way of transducing the oncogenic Wnt signal in which β-catenin is regulated by 14-3-3ζ through the formation of "oncosomes" that contain both the 14-3-3 and β-catenin proteins.
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Affiliation(s)
- Shiri Dovrat
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Michal Caspi
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Alona Zilberberg
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Lital Lahav
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Anastasia Firsow
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Hila Gur
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Rina Rosin-Arbesfeld
- Department of Anatomy and Anthropology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 69978, Israel.
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Leo E, Mancini M, Aluigi M, Luatti S, Castagnetti F, Testoni N, Soverini S, Santucci MA, Martinelli G. BCR-ABL1-associated reduction of beta catenin antagonist Chibby1 in chronic myeloid leukemia. PLoS One 2013; 8:e81425. [PMID: 24339928 PMCID: PMC3858264 DOI: 10.1371/journal.pone.0081425] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Accepted: 10/11/2013] [Indexed: 11/25/2022] Open
Abstract
Beta Catenin signaling is critical for the self-renewal of leukemic stem cells in chronic myeloid leukemia. It is driven by multiple events, enhancing beta catenin stability and promoting its transcriptional co-activating function. We investigated the impact of BCR-ABL1 on Chibby1, a beta catenin antagonist involved in cell differentiation and transformation. Relative proximity of the Chibby1 encoding gene (C22orf2) on chromosome 22q12 to the BCR breakpoint (22q11) lets assume its involvement in beta catenin activation in chronic myeloid leukemia as a consequence of deletions of distal BCR sequences encompassing one C22orf2 allele. Forty patients with chronic myeloid leukemia in chronic phase were analyzed for C22orf2 relocation and Chibby1 expression. Fluorescent in situ hybridization analyses established that the entire C22orf2 follows BCR regardless of chromosomes involved in the translocation. In differentiated hematopoietic progenitors (bone marrow mononuclear cell fractions) of 30/40 patients, the expression of Chibby1 protein was reduced below 50% of the reference value (peripheral blood mononuclear cell fractions of healthy persons). In such cell context, Chibby1 protein reduction is not dependent on C22orf2 transcriptional downmodulation; however, it is strictly dependent upon BCR-ABL1 expression because it was not observed at the moment of major molecular response under tyrosine kinase inhibitor therapy. Moreover, it was not correlated with the disease prognosis or response to therapy. Most importantly, a remarkable Chibby1 reduction was apparent in a putative BCR-ABL1+ leukemic stem cell compartment identified by a CD34+ phenotype compared to more differentiated hematopoietic progenitors. In CD34+ cells, Chibby1 reduction arises from transcriptional events and is driven by C22orf2 promoter hypermethylation. These results advance low Chibby1 expression associated with BCR-ABL1 as a component of beta catenin signaling in leukemic stem cells.
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MESH Headings
- Active Transport, Cell Nucleus
- Antigens, CD34/metabolism
- Carrier Proteins/genetics
- Carrier Proteins/metabolism
- Cell Nucleus/metabolism
- Chromosomes, Human, Pair 9/genetics
- Down-Regulation
- Fusion Proteins, bcr-abl/metabolism
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Models, Molecular
- Neoplastic Stem Cells/metabolism
- Neoplastic Stem Cells/pathology
- Nuclear Proteins/genetics
- Nuclear Proteins/metabolism
- Nucleic Acid Conformation
- Signal Transduction
- Transcriptional Activation
- beta Catenin/antagonists & inhibitors
- beta Catenin/genetics
- beta Catenin/metabolism
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Affiliation(s)
- Elisa Leo
- Istituto di Ematologia “Lorenzo e Ariosto Seràgnoli”, Dipartimento di Medicina Specialistica Diagnostica e Sperimentale - DIMES, University of Bologna - Medical School, Bologna, Italy
- * E-mail:
| | - Manuela Mancini
- Istituto di Ematologia “Lorenzo e Ariosto Seràgnoli”, Dipartimento di Medicina Specialistica Diagnostica e Sperimentale - DIMES, University of Bologna - Medical School, Bologna, Italy
| | - Michela Aluigi
- Istituto di Ematologia “Lorenzo e Ariosto Seràgnoli”, Dipartimento di Medicina Specialistica Diagnostica e Sperimentale - DIMES, University of Bologna - Medical School, Bologna, Italy
| | - Simona Luatti
- Istituto di Ematologia “Lorenzo e Ariosto Seràgnoli”, Dipartimento di Medicina Specialistica Diagnostica e Sperimentale - DIMES, University of Bologna - Medical School, Bologna, Italy
| | - Fausto Castagnetti
- Istituto di Ematologia “Lorenzo e Ariosto Seràgnoli”, Dipartimento di Medicina Specialistica Diagnostica e Sperimentale - DIMES, University of Bologna - Medical School, Bologna, Italy
| | - Nicoletta Testoni
- Istituto di Ematologia “Lorenzo e Ariosto Seràgnoli”, Dipartimento di Medicina Specialistica Diagnostica e Sperimentale - DIMES, University of Bologna - Medical School, Bologna, Italy
| | - Simona Soverini
- Istituto di Ematologia “Lorenzo e Ariosto Seràgnoli”, Dipartimento di Medicina Specialistica Diagnostica e Sperimentale - DIMES, University of Bologna - Medical School, Bologna, Italy
| | - Maria Alessandra Santucci
- Istituto di Ematologia “Lorenzo e Ariosto Seràgnoli”, Dipartimento di Medicina Specialistica Diagnostica e Sperimentale - DIMES, University of Bologna - Medical School, Bologna, Italy
| | - Giovanni Martinelli
- Istituto di Ematologia “Lorenzo e Ariosto Seràgnoli”, Dipartimento di Medicina Specialistica Diagnostica e Sperimentale - DIMES, University of Bologna - Medical School, Bologna, Italy
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11
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Mancini M, Leo E, Takemaru KI, Campi V, Borsi E, Castagnetti F, Gugliotta G, Santucci MA, Martinelli G. Chibby drives β catenin cytoplasmic accumulation leading to activation of the unfolded protein response in BCR-ABL1+ cells. Cell Signal 2013; 25:1820-7. [PMID: 23707389 DOI: 10.1016/j.cellsig.2013.05.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 05/13/2013] [Accepted: 05/13/2013] [Indexed: 12/31/2022]
Abstract
Chronic myeloid leukemia (CML) is a myeloproliferative disease caused by the constitutive tyrosine kinase (TK) activity of the BCR-ABL fusion protein. However, the phenotype of leukemic stem cells (LSC) is sustained by β catenin rather than by the BCR-ABL TK. β catenin activity in CML is contingent upon its stabilization proceeding from the BCR-ABL-induced phosphorylation at critical residues for interaction with the Adenomatous polyposis coli (APC)/Axin/glycogen synthase kinase 3 (GSK3) destruction complex or GSK3 inactivating mutations. Here we studied the impact of β catenin antagonist Chibby (CBY) on β catenin signaling in BCR-ABL1+ cells. CBY is a small conserved protein which interacts with β catenin and impairs β catenin-mediated transcriptional activation through two distinct molecular mechanisms: 1) competition with T cell factor (TCF) or lymphoid enhancer factor (LEF) for β catenin binding; and 2) nuclear export of β catenin via interaction with 14-3-3. We found that its enforced expression in K562 cell line promoted β catenin cytoplasmic translocation resulting in inhibition of target gene transcription. Moreover, cytoplasmic accumulation of β catenin activated the endoplasmic reticulum (ER) stress-associated pathway known as unfolded protein response (UPR). CBY-driven cytoplasmic accumulation of β catenin is also a component of BCR-ABL1+ cell response to the TK inhibitor Imatinib (IM). It evoked the UPR activation leading to the induction of BCL2-interacting mediator of cell death (BIM) by UPR sensors. BIM, in turn, contributed to the execution phase of apoptosis in the activation of ER resident caspase 12 and mobilization of Ca(2+) stores.
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Affiliation(s)
- Manuela Mancini
- Department of Experimental Diagnostic and Specialty Medicine - DIMES - Institute of Hematology L and A Seràgnoli, University of Bologna-Medical School, Italy.
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