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Liao TT, Cheng WC, Yang CY, Chen YQ, Su SH, Yeh TY, Lan HY, Lee CC, Lin HH, Lin CC, Lu RH, Chiou AET, Jiang JK, Hwang WL. The microRNA-210-Stathmin1 Axis Decreases Cell Stiffness to Facilitate the Invasiveness of Colorectal Cancer Stem Cells. Cancers (Basel) 2021; 13:cancers13081833. [PMID: 33921319 PMCID: PMC8069838 DOI: 10.3390/cancers13081833] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/06/2021] [Accepted: 04/09/2021] [Indexed: 12/26/2022] Open
Abstract
Simple Summary Metastasis of tumor cells is the leading cause of death in cancer patients. Concurrent therapy with surgical removal of primary and metastatic lesions is the main approach for cancer therapy. Currently, therapeutic resistant properties of cancer stem cells (CSCs) are known to drive malignant cancer progression, including metastasis. Our study aimed to identify molecular tools dedicated to the detection and treatment of CSCs. We confirmed that microRNA-210-3p (miR-210) was upregulated in colorectal stem-like cancer cells, which targeted stathmin1 (STMN1), to decrease cell elasticity for increasing mobility. We envision that strategies for softening cellular elasticity will reduce the onset of CSC-orientated metastasis. Abstract Cell migration is critical for regional dissemination and distal metastasis of cancer cells, which remain the major causes of poor prognosis and death in patients with colorectal cancer (CRC). Although cytoskeletal dynamics and cellular deformability contribute to the migration of cancer cells and metastasis, the mechanisms governing the migratory ability of cancer stem cells (CSCs), a nongenetic source of tumor heterogeneity, are unclear. Here, we expanded colorectal CSCs (CRCSCs) as colonospheres and showed that CRCSCs exhibited higher cell motility in transwell migration assays and 3D invasion assays and greater deformability in particle tracking microrheology than did their parental CRC cells. Mechanistically, in CRCSCs, microRNA-210-3p (miR-210) targeted stathmin1 (STMN1), which is known for inducing microtubule destabilization, to decrease cell elasticity in order to facilitate cell motility without affecting the epithelial–mesenchymal transition (EMT) status. Clinically, the miR-210-STMN1 axis was activated in CRC patients with liver metastasis and correlated with a worse clinical outcome. This study elucidates a miRNA-oriented mechanism regulating the deformability of CRCSCs beyond the EMT process.
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Affiliation(s)
- Tsai-Tsen Liao
- Graduate Institute of Medical Science, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (T.-T.L.); (H.-Y.L.)
- Cell Physiology and Molecular Image Research Center, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan
| | - Wei-Chung Cheng
- Ph.D. Program for Cancer Molecular Biology and Drug Discovery, China Medical University, Taichung 406, Taiwan;
- Research Center for Cancer Biology, China Medical University, Taichung 406, Taiwan
| | - Chih-Yung Yang
- Department of Education and Research, Taipei City Hospital, Taipei 106, Taiwan;
- General Education Center, University of Taipei, Taipei 100, Taiwan
| | - Yin-Quan Chen
- Cancer Progression Research Center, National Yang Ming Chiao Tung University, Taipei 112, Taiwan;
| | - Shu-Han Su
- Institution of Microbiology and Immunology, National Yang-Ming University, Taipei 112, Taiwan; (S.-H.S.); (T.-Y.Y.)
| | - Tzu-Yu Yeh
- Institution of Microbiology and Immunology, National Yang-Ming University, Taipei 112, Taiwan; (S.-H.S.); (T.-Y.Y.)
| | - Hsin-Yi Lan
- Graduate Institute of Medical Science, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; (T.-T.L.); (H.-Y.L.)
- Department of Biotechnology and Laboratory Science in Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan;
- Department of Biotechnology and Laboratory Science in Medicine, National Yang-Ming University, Taipei 112, Taiwan
| | - Chih-Chan Lee
- Department of Biotechnology and Laboratory Science in Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan;
| | - Hung-Hsin Lin
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan;
- Division of Colon & Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei 112, Taiwan;
| | - Chun-Chi Lin
- Division of Colon & Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei 112, Taiwan;
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
| | - Ruey-Hwa Lu
- Department of Surgery, Zhongxing Branch, Taipei City Hospital, Taipei 106, Taiwan;
| | - Arthur Er-Terg Chiou
- Institute of Biophotonics, National Yang Ming Chiao Tung University, Taipei 112, Taiwan;
| | - Jeng-Kai Jiang
- Division of Colon & Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei 112, Taiwan;
- School of Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan
- Correspondence: (J.-K.J.); (W.-L.H.); Tel.: +886-2-2826-7000 (ext. 65832) (W.-L.H.)
| | - Wei-Lun Hwang
- Cancer Progression Research Center, National Yang Ming Chiao Tung University, Taipei 112, Taiwan;
- Department of Biotechnology and Laboratory Science in Medicine, National Yang Ming Chiao Tung University, Taipei 112, Taiwan;
- Department of Biotechnology and Laboratory Science in Medicine, National Yang-Ming University, Taipei 112, Taiwan
- Correspondence: (J.-K.J.); (W.-L.H.); Tel.: +886-2-2826-7000 (ext. 65832) (W.-L.H.)
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Shu F, Zou X, Tuo H, She S, Huang J, Ren H, Hu H, Peng S, Wang J, Yang Y. Stathmin gene silencing suppresses proliferation, migration and invasion of gastric cancer cells via AKT/sCLU and STAT3 signaling. Int J Oncol 2019; 54:1086-1098. [PMID: 30628664 DOI: 10.3892/ijo.2019.4674] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 11/02/2018] [Indexed: 11/06/2022] Open
Abstract
Globally, gastric cancer is the fifth most common malignancy, with high rates of incidence and mortality. The high mortality rate and poor prognosis of gastric cancer are closely associated with its profound invasiveness, high incidence of metastasis, rapid proliferation, and high rate of recurrence. Previous studies have confirmed that stathmin (STMN) has an important role in the occurrence, development and prognosis of gastric cancer. However, the detailed mechanisms by which STMN affects these processes remain unclear. The aim of the present study was to determine how STMN promotes invasion, migration and proliferation in gastric cancer tumor cells. The results of immunohistochemistry indicated that STMN is overexpressed in stomach neoplasm tissues, and that it is associated with migration, invasion, proliferation and anti‑apoptotic states of gastric cancer cells. The secretory proteins of gastric cancer cells with or without STMN knockdown were further analyzed using the isobaric tags for relative and absolute quantitation method to identify differentially expressed proteins verified by reverse transcription‑quantitative polymerase chain reaction and western blot analysis. Inhibition of STMN decreases the levels of clusterin, cystatin C and matrix metalloproteinases, followed by inhibiting the protein kinase B and signal transducer and activation of transcription activation. These findings suggest that STMN could be a promising therapeutic target for gastric cancer.
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Affiliation(s)
- Feng Shu
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Xiaoqin Zou
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Huan Tuo
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Sha She
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Juan Huang
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Hong Ren
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Huaidong Hu
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Shifang Peng
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Jiandong Wang
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
| | - Yixuan Yang
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China
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Segatto I, Zompit MDM, Citron F, D'Andrea S, Vinciguerra GLR, Perin T, Berton S, Mungo G, Schiappacassi M, Marchini C, Amici A, Vecchione A, Baldassarre G, Belletti B. Stathmin Is Required for Normal Mouse Mammary Gland Development and Δ16HER2-Driven Tumorigenesis. Cancer Res 2018; 79:397-409. [PMID: 30478213 DOI: 10.1158/0008-5472.can-18-2488] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 10/17/2018] [Accepted: 11/19/2018] [Indexed: 11/16/2022]
Abstract
Postnatal development of the mammary gland relies on the maintenance of oriented cell division and apicobasal polarity, both of which are often deregulated in cancer. The microtubule (MT) network contributes to control these processes; however, very little is known about the impact of altered MT dynamics in the development of a complex organ and on the role played by MT-interacting proteins such as stathmin. In this study, we report that female stathmin knock-out (STM KO) mice are unable to nurse their litters due to frank impairment of mammary gland development. In mouse mammary epithelial cells, loss of stathmin compromised the trafficking of polarized proteins and the achievement of proper apicobasal polarity. In particular, prolactin receptor internalization and localization was altered in STM KO mammary epithelial cells, leading to decreased protein stability and downmodulation of the Prl/PrlR/STAT5 signaling pathway. Absence of stathmin induced alterations in mitotic spindle orientation, accumulation of mitotic defects, and apoptosis, overall contributing to tissue disorganization and further decreasing the expansion of the mammary epithelial compartment. Loss of stathmin in MMTV-Δ16HER2 transgenic mice decreased the incidence and increased the latency of these very aggressive mammary carcinomas. Collectively, these data identify the essential mammary protein stathmin as protumorigenic and suggest it may serve as a potential therapeutic target in breast cancer. SIGNIFICANCE: Stathmin expression is critical to maintain oriented cell division and apicobasal polarity in normal mammary glands and to establish a protumorigenic program that eventually sustains HER2-positive breast cancer formation in mice.
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Affiliation(s)
- Ilenia Segatto
- Unit of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, National Cancer Institute, Aviano, Italy
| | - Mara De Marco Zompit
- Unit of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, National Cancer Institute, Aviano, Italy
| | - Francesca Citron
- Unit of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, National Cancer Institute, Aviano, Italy
| | - Sara D'Andrea
- Unit of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, National Cancer Institute, Aviano, Italy
| | - Gian Luca Rampioni Vinciguerra
- Unit of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, National Cancer Institute, Aviano, Italy.,Faculty of Medicine and Psychology, Department of Clinical and Molecular Medicine, University of Rome "Sapienza" Sant'Andrea Hospital, Rome, Italy
| | - Tiziana Perin
- Unit of Pathology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, National Cancer Institute, Aviano, Italy
| | - Stefania Berton
- Unit of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, National Cancer Institute, Aviano, Italy
| | - Giorgia Mungo
- Unit of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, National Cancer Institute, Aviano, Italy
| | - Monica Schiappacassi
- Unit of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, National Cancer Institute, Aviano, Italy
| | - Cristina Marchini
- Department of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - Augusto Amici
- Department of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - Andrea Vecchione
- Faculty of Medicine and Psychology, Department of Clinical and Molecular Medicine, University of Rome "Sapienza" Sant'Andrea Hospital, Rome, Italy
| | - Gustavo Baldassarre
- Unit of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, National Cancer Institute, Aviano, Italy.
| | - Barbara Belletti
- Unit of Molecular Oncology, Centro di Riferimento Oncologico di Aviano (CRO), IRCCS, National Cancer Institute, Aviano, Italy.
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Pellizzari I, Fabris L, Berton S, Segatto I, Citron F, D'Andrea S, Cusan M, Benevol S, Perin T, Massarut S, Canzonieri V, Schiappacassi M, Belletti B, Baldassarre G. p27kip1 expression limits H-Ras-driven transformation and tumorigenesis by both canonical and non-canonical mechanisms. Oncotarget 2018; 7:64560-64574. [PMID: 27579539 PMCID: PMC5323099 DOI: 10.18632/oncotarget.11656] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 07/19/2016] [Indexed: 12/15/2022] Open
Abstract
The tumor suppressor protein p27Kip1 plays a pivotal role in the control of cell growth and metastasis formation.Several studies pointed to different roles for p27Kip1 in the control of Ras induced transformation, although no explanation has been provided to elucidate these differences. We recently demonstrated that p27kip1 regulates H-Ras activity via its interaction with stathmin.Here, using in vitro and in vivo models, we show that p27kip1 is an important regulator of Ras induced transformation. In H-RasV12 transformed cells, p27kip1 suppressed cell proliferation and tumor growth via two distinct mechanisms: 1) inhibition of CDK activity and 2) impairment of MT-destabilizing activity of stathmin. Conversely, in K-Ras4BV12 transformed cells, p27kip1 acted mainly in a CDK-dependent but stathmin-independent manner.Using human cancer-derived cell lines and primary breast and sarcoma samples, we confirmed in human models what we observed in mice.Overall, we highlight a pathway, conserved from mouse to human, important in the regulation of H-Ras oncogenic activity that could have therapeutic and diagnostic implication in patients that may benefit from anti-H-Ras therapies.
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Affiliation(s)
- Ilenia Pellizzari
- Division of Experimental Oncology 2, Department of Translational Research, CRO Aviano, National Cancer Institute, Aviano, Italy
| | - Linda Fabris
- Division of Experimental Oncology 2, Department of Translational Research, CRO Aviano, National Cancer Institute, Aviano, Italy.,Department of Experimental Therapeutics, M.D. Anderson Cancer Center, Houston, TX, USA
| | - Stefania Berton
- Division of Experimental Oncology 2, Department of Translational Research, CRO Aviano, National Cancer Institute, Aviano, Italy
| | - Ilenia Segatto
- Division of Experimental Oncology 2, Department of Translational Research, CRO Aviano, National Cancer Institute, Aviano, Italy
| | - Francesca Citron
- Division of Experimental Oncology 2, Department of Translational Research, CRO Aviano, National Cancer Institute, Aviano, Italy
| | - Sara D'Andrea
- Division of Experimental Oncology 2, Department of Translational Research, CRO Aviano, National Cancer Institute, Aviano, Italy
| | - Martina Cusan
- Division of Experimental Oncology 2, Department of Translational Research, CRO Aviano, National Cancer Institute, Aviano, Italy
| | - Sara Benevol
- Division of Experimental Oncology 2, Department of Translational Research, CRO Aviano, National Cancer Institute, Aviano, Italy
| | - Tiziana Perin
- Pathology Unit, CRO Aviano, National Cancer Institute, Aviano, Italy
| | - Samuele Massarut
- Breast Surgery Unit, CRO Aviano, National Cancer Institute, Aviano, Italy
| | | | - Monica Schiappacassi
- Division of Experimental Oncology 2, Department of Translational Research, CRO Aviano, National Cancer Institute, Aviano, Italy
| | - Barbara Belletti
- Division of Experimental Oncology 2, Department of Translational Research, CRO Aviano, National Cancer Institute, Aviano, Italy
| | - Gustavo Baldassarre
- Division of Experimental Oncology 2, Department of Translational Research, CRO Aviano, National Cancer Institute, Aviano, Italy
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Segatto I, Berton S, Sonego M, Massarut S, Perin T, Piccoli E, Colombatti A, Vecchione A, Baldassarre G, Belletti B. Surgery-induced wound response promotes stem-like and tumor-initiating features of breast cancer cells, via STAT3 signaling. Oncotarget 2015; 5:6267-79. [PMID: 25026286 PMCID: PMC4171628 DOI: 10.18632/oncotarget.2195] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Inflammation is clinically linked to cancer but the mechanisms are not fully understood. Surgery itself elicits a range of inflammatory responses, suggesting that it could represent a perturbing factor in the process of local recurrence and/or metastasis formation. Post-surgery wound fluids (WF), drained from breast cancer patients, are rich in cytokines and growth factors, stimulate the in vitro growth of breast cancer cells and are potent activators of the STAT transcription factors. We wondered whether STAT signaling was functionally involved in the response of breast cancer cells to post-surgical inflammation. We discovered that WF induced the enrichment of breast cancer cells with stem-like phenotypes, via activation of STAT3. In vitro, WF highly stimulated mammosphere formation and self-renewal of breast cancer cells. In vivo, STAT3 signaling was critical for breast cancer cell tumorigenicity and for the formation of local relapse after surgery. Overall, we demonstrate here that surgery-induced inflammation promotes stem-like phenotypes and tumor-initiating abilities of breast cancer cells. Interfering with STAT3 signaling with a peri-surgical treatment is sufficient to strongly suppress this process. The understanding of the crosstalk between breast tumor-initiating cells and their microenvironment may open the way to successful targeting of these cells in their initial stages of growth and be eventually curative.
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Affiliation(s)
- Ilenia Segatto
- Division of Experimental Oncology 2, CRO, National Cancer Institute, Aviano 33081, Italy
| | - Stefania Berton
- Division of Experimental Oncology 2, CRO, National Cancer Institute, Aviano 33081, Italy
| | - Maura Sonego
- Division of Experimental Oncology 2, CRO, National Cancer Institute, Aviano 33081, Italy
| | - Samuele Massarut
- Breast Surgery Unit, CRO, National Cancer Institute, Aviano 33081, Italy
| | - Tiziana Perin
- Pathology Unit, CRO, National Cancer Institute, Aviano 33081, Italy
| | - Erica Piccoli
- Breast Surgery Unit, CRO, National Cancer Institute, Aviano 33081, Italy
| | - Alfonso Colombatti
- Division of Experimental Oncology 2, CRO, National Cancer Institute, Aviano 33081, Italy; Department of Scienze Biologiche e Mediche, MATI Center of Excellence, University of Udine, 33100 Udine, Italy
| | - Andrea Vecchione
- Division of Pathology, II University of Rome "La Sapienza", Santo Andrea Hospital, Rome 00189, Italy
| | - Gustavo Baldassarre
- Division of Experimental Oncology 2, CRO, National Cancer Institute, Aviano 33081, Italy
| | - Barbara Belletti
- Division of Experimental Oncology 2, CRO, National Cancer Institute, Aviano 33081, Italy
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p27kip1 controls H-Ras/MAPK activation and cell cycle entry via modulation of MT stability. Proc Natl Acad Sci U S A 2015; 112:13916-21. [PMID: 26512117 DOI: 10.1073/pnas.1508514112] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The cyclin-dependent kinase (CDK) inhibitor p27(kip1) is a critical regulator of the G1/S-phase transition of the cell cycle and also regulates microtubule (MT) stability. This latter function is exerted by modulating the activity of stathmin, an MT-destabilizing protein, and by direct binding to MTs. We recently demonstrated that increased proliferation in p27(kip1)-null mice is reverted by concomitant deletion of stathmin in p27(kip1)/stathmin double-KO mice, suggesting that a CDK-independent function of p27(kip1) contributes to the control of cell proliferation. Whether the regulation of MT stability by p27(kip1) impinges on signaling pathway activation and contributes to the decision to enter the cell cycle is largely unknown. Here, we report that faster cell cycle entry of p27(kip1)-null cells was impaired by the concomitant deletion of stathmin. Using gene expression profiling coupled with bioinformatic analyses, we show that p27(kip1) and stathmin conjunctly control activation of the MAPK pathway. From a molecular point of view, we observed that p27(kip1), by controlling MT stability, impinges on H-Ras trafficking and ubiquitination levels, eventually restraining its full activation. Our study identifies a regulatory axis controlling the G1/S-phase transition, relying on the regulation of MT stability by p27(kip1) and finely controlling the spatiotemporal activation of the Ras-MAPK signaling pathway.
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Berton S, Pellizzari I, Fabris L, D'Andrea S, Segatto I, Canzonieri V, Marconi D, Schiappacassi M, Benevol S, Gattei V, Colombatti A, Belletti B, Baldassarre G. Genetic characterization of p27(kip1) and stathmin in controlling cell proliferation in vivo. Cell Cycle 2015; 13:3100-11. [PMID: 25486569 PMCID: PMC4612673 DOI: 10.4161/15384101.2014.949512] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The CDK inhibitor p27(kip1) is a critical regulator of cell cycle progression, but the mechanisms by which p27(kip1) controls cell proliferation in vivo are still not fully elucidated. We recently demonstrated that the microtubule destabilizing protein stathmin is a relevant p27(kip1) binding partner. To get more insights into the in vivo significance of this interaction, we generated p27(kip1) and stathmin double knock-out (DKO) mice. Interestingly, thorough characterization of DKO mice demonstrated that most of the phenotypes of p27(kip1) null mice linked to the hyper-proliferative behavior, such as the increased body and organ weight, the outgrowth of the retina basal layer and the development of pituitary adenomas, were reverted by co-ablation of stathmin. In vivo analyses showed a reduced proliferation rate in DKO compared to p27(kip1) null mice, linked, at molecular level, to decreased kinase activity of CDK4/6, rather than of CDK1 and CDK2. Gene expression profiling of mouse thymuses confirmed the phenotypes observed in vivo, showing that DKO clustered with WT more than with p27 knock-out tissue. Taken together, our results demonstrate that stathmin cooperates with p27(kip1) to control the early phase of G1 to S phase transition and that this function may be of particular relevance in the context of tumor progression.
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Affiliation(s)
- Stefania Berton
- a Department of Translational Research; Division of Experimental Oncology 2; CRO of Aviano, National Cancer Institute ; Aviano , Italy
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Wang F, Xuan XY, Yang X, Cao L, Pang LN, Zhou R, Fan QX, Wang LX. Stathmin is a marker of progression and poor prognosis in esophageal carcinoma. Asian Pac J Cancer Prev 2015; 15:3613-8. [PMID: 24870766 DOI: 10.7314/apjcp.2014.15.8.3613] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Stathmin, also called oncoprotein 18, is a founding member of the family of microtubule-destabilizing proteins that play a critical role in the regulation of mitosis. At the same time stathmin has been recognized as one of responsible factors in cancer cells. The aim of this study was to assess stathmin status, its correlations with clinicopathological parameters and its role as a progosnostic marker in EC patients. The protein and mRNA levels of stathmin were examined by immunohistochemistry (IHC) and in situ hybridization in 100EC tissues and adjacent noncancerous tissues. mRNA and protein expression of stathmin in three EC cell lines(EC9706, ECa109, EC1 commonly used in research) were also analyzed using immunocytochemistry, western blot and in situ hybridization. The prognostic value of Stathmin expression within the tumor tissues were assessed by Cox regression and Kaplan-Meier analysis. We showed that stathmin expression was significantly higher in EC tissues than in adjacent noncancerous tissues. High stathmin immunostaining score in the EC was positively correlated with tumor differentiation, Tumor invasion, Lymph node metastases, and TNM stage. In addition, we demonstrated that three EC cell lines examined, were constitutively expressing a high level of stathmin. Of those, EC-1 showed the strongest mRNA and protein expression for the stathmin analyzed. Kaplan-Meier analysis showed that significantly longer 5-year survival rate was seen in EC patients with high Stathmin expression, compared to those with low expression of Stathmin expression. Furthermore, multivariate Cox proportional hazard analyses revealed that Stathmin was an independent factors affecting the overall survival probability. In conclusion, our data provide a basis for the concept that stathmin might be associated with EC development and progression.. High levels of Stathmin expression in the tumor tissues may be a good prognostic marker for patients with EC.
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Affiliation(s)
- Feng Wang
- Department of Oncology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China E-mail :
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Gong S, Tao Z, Liu X, Gan L. An underlying prognosis predictor of hepatocellular carcinoma: Oncoprotein 18. Biomed Rep 2013; 2:85-88. [PMID: 24649074 DOI: 10.3892/br.2013.197] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Accepted: 10/21/2013] [Indexed: 12/21/2022] Open
Abstract
Recent studies have reported the association between the expression of oncoprotein 18 (op18) and hepatocellular carcinoma (HCC). However, any underlying mechanistic connection between op18 expression and hepatocarcinogenesis is poorly understood. In the present study, Flag-pcDNA3.1 vector and Flag-pcDNA3.1-op18 plasmid were stably transfected in SMMC7721 cells, respectively. Stable SMMC7721 control and op18 overexpression SMMC7721 cell lines were constructed and identified by western blot analysis. Using a cell counting kit-8 (CCK8), it was shown that cell proliferation was significantly increased in the op18 overexpression SMMC7721 cell group (0.60±0.05), compared with the control group (0.29±0.03) at an absorbance of 450 nm (P<0.01). Flow cytometry was used to analyze cell apoptosis by FITC-Annexin V and propidium iodide (PI) apoptosis assay kit. The results demonstrated that the percentage of apoptotic cells was inhibited to 5.80±0.33% in the op18 overexpression group, compared with 11.79±1.09% in the control group. Using FACS, single cell analysis data showed that op18 overexpression induced cell cycle arrest by inhibiting progression from G2 to M phase. The results suggest that op18 expression is closely associated with SMMC7721 cell proliferation and apoptosis, which appears to be a potential predictor of prognosis in HCC.
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Affiliation(s)
- Shu Gong
- Research Centre for Preclinical Medicine, Luzhou Medical College, Luzhou, Sichuan 646000, P.R. China
| | - Zhonghua Tao
- Research Centre for Preclinical Medicine, Luzhou Medical College, Luzhou, Sichuan 646000, P.R. China
| | - Xiaoyan Liu
- Research Centre for Preclinical Medicine, Luzhou Medical College, Luzhou, Sichuan 646000, P.R. China
| | - Lin Gan
- Research Centre for Preclinical Medicine, Luzhou Medical College, Luzhou, Sichuan 646000, P.R. China
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Sonego M, Schiappacassi M, Lovisa S, Dall'Acqua A, Bagnoli M, Lovat F, Libra M, D'Andrea S, Canzonieri V, Militello L, Napoli M, Giorda G, Pivetta B, Mezzanzanica D, Barbareschi M, Valeri B, Canevari S, Colombatti A, Belletti B, Del Sal G, Baldassarre G. Stathmin regulates mutant p53 stability and transcriptional activity in ovarian cancer. EMBO Mol Med 2013; 5:707-22. [PMID: 23610071 PMCID: PMC3662314 DOI: 10.1002/emmm.201201504] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 02/18/2013] [Accepted: 02/20/2013] [Indexed: 01/07/2023] Open
Abstract
Stathmin is a p53-target gene, frequently overexpressed in late stages of human cancer progression. Type II High Grade Epithelial Ovarian Carcinomas (HG-EOC) represents the only clear exception to this observation. Here, we show that stathmin expression is necessary for the survival of HG-EOC cells carrying a p53 mutant (p53MUT) gene. At molecular level, stathmin favours the binding and the phosphorylation of p53MUT by DNA-PKCS, eventually modulating p53MUT stability and transcriptional activity. Inhibition of stathmin or DNA-PKCS impaired p53MUT–dependent transcription of several M phase regulators, resulting in M phase failure and EOC cell death, both in vitro and in vivo. In primary human EOC a strong correlation exists between stathmin, DNA-PKCS, p53MUT overexpression and its transcriptional targets, further strengthening the relevance of the new pathway here described. Overall our data support the hypothesis that the expression of stathmin and p53 could be useful for the identification of high risk patients that will benefit from a therapy specifically acting on mitotic cancer cells.
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Affiliation(s)
- Maura Sonego
- Division of Experimental Oncology 2, Centro di Riferimento Oncologico, National Cancer Institute, Aviano, Italy
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