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Wang R, Jia S, Chen H, Luo K, Zhang L, Song Y, Qing C, Liu D, Zhou H. Antiplatelet drug ticagrelor suppresses triple negative breast cancer metastasis by targeting PI3K. Biochem Pharmacol 2024; 226:116408. [PMID: 38969297 DOI: 10.1016/j.bcp.2024.116408] [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: 02/18/2024] [Revised: 06/14/2024] [Accepted: 07/02/2024] [Indexed: 07/07/2024]
Abstract
Metastatic recurrence is still a major challenge in breast cancer treatment. Patients with triple negative breast cancer (TNBC) develop early recurrence and relapse more frequently. Due to the lack of specific therapeutic targets, new targeted therapies for TNBC are urgently needed. Phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR) pathway is one of the active pathways involved in chemoresistance and survival of TNBC, being considered as a potential target for TNBC treatment. Our present study identified ticagrelor, an anti-platelet drug, as a pan-PI3K inhibitor with potent inhibitory activity against four isoforms of class I PI3K. At doses normally used in clinic, ticagrelor showed weak cytotoxicity against a panel of breast cancer cells, but significantly inhibited the migration, invasion and the actin cytoskeleton organization of human TNBC MDA-MB-231 and SUM-159PT cells. Mechanistically, ticagrelor effectively inhibited PI3K downstream mTOR complex 1 (mTORC1) and mTORC2 signaling by targeting PI3K and decreased the protein expression of epithelial-mesenchymal transition (EMT) markers. In vivo, ticagrelor significantly suppressed tumor cells lung metastasis in 4T1 tumor bearing BALB/c mice model and experimental lung metastasis model which was established by tail vein injection of GFP-labeled MDA-MB-231 cells. The above data demonstrated that ticagrelor can inhibit the migration and invasion of TNBC both in vitro and in vivo by targeting PI3K, suggesting that ticagrelor, a pan-PI3K inhibitor, might represent a promising therapeutic agent for the treatment of metastatic TNBC.
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Affiliation(s)
- Rong Wang
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Shutao Jia
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Hongyan Chen
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Kaitao Luo
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Limei Zhang
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Yan Song
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Chen Qing
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, Yunnan, China; Yunnan College of Modern Biomedical Industry, Kunming Medical University, Kunming 650500, Yunnan, China
| | - Dandan Liu
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, Yunnan, China; Yunnan College of Modern Biomedical Industry, Kunming Medical University, Kunming 650500, Yunnan, China.
| | - Hongyu Zhou
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, Yunnan, China; Yunnan College of Modern Biomedical Industry, Kunming Medical University, Kunming 650500, Yunnan, China.
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Al Saati A, Vande Perre P, Plenecassagnes J, Gilhodes J, Monselet N, Cabarrou B, Lignon N, Filleron T, Telly D, Perello-Lestrade E, Feillel V, Staub A, Martinez M, Chipoulet E, Collet G, Thomas F, Gladieff L, Toulas C. Multigene Panel Sequencing Identifies a Novel Germline Mutation Profile in Male Breast Cancer Patients. Int J Mol Sci 2023; 24:14348. [PMID: 37762649 PMCID: PMC10531866 DOI: 10.3390/ijms241814348] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/07/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
Even though male breast cancer (MBC) risk encompasses both genetic and environmental aetiologies, the primary risk factor is a germline pathogenic variant (PV) or likely pathogenic variant (LPV) in BRCA2, BRCA1 and/or PALB2 genes. To identify new potential MBC-specific predisposition genes, we sequenced a panel of 585 carcinogenesis genes in an MBC cohort without BRCA1/BRCA2/PALB2 PV/LPV. We identified 14 genes carrying rare PVs/LPVs in the MBC population versus noncancer non-Finnish European men, predominantly coding for DNA repair and maintenance of genomic stability proteins. We identified for the first time PVs/LPVs in PRCC (pre-mRNA processing), HOXA9 (transcription regulation), RECQL4 and WRN (maintenance of genomic stability) as well as in genes involved in other cellular processes. To study the specificity of this MBC PV/LPV profile, we examined whether variants in the same genes could be detected in a female breast cancer (FBC) cohort without BRCA1/BRCA2/PALB2 PV/LPV. Only 5/109 women (4.6%) carried a PV/LPV versus 18/85 men (21.2%) on these genes. FBC did not carry any PV/LPV on 11 of these genes. Although 5.9% of the MBC cohort carried PVs/LPVs in PALLD and ERCC2, neither of these genes were altered in our FBC cohort. Our data suggest that in addition to BRCA1/BRCA2/PALB2, other genes involved in DNA repair/maintenance or genomic stability as well as cell adhesion may form a specific MBC PV/LPV signature.
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Affiliation(s)
- Ayman Al Saati
- Oncogenetics Laboratory, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France; (A.A.S.); (D.T.); (E.P.-L.)
- DIAD, Inserm, Centre de Recherches en Cancérologie de Toulouse, Toulouse, France;
- Université de Toulouse, Université Toulouse III-Paul Sabatier, Toulouse, France
| | - Pierre Vande Perre
- Oncogenetics Laboratory, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France; (A.A.S.); (D.T.); (E.P.-L.)
- DIAD, Inserm, Centre de Recherches en Cancérologie de Toulouse, Toulouse, France;
| | - Julien Plenecassagnes
- Bioinformatics Department, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France;
| | - Julia Gilhodes
- Biostatistics Department, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France; (J.G.); (N.M.); (B.C.); (T.F.)
| | - Nils Monselet
- Biostatistics Department, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France; (J.G.); (N.M.); (B.C.); (T.F.)
| | - Bastien Cabarrou
- Biostatistics Department, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France; (J.G.); (N.M.); (B.C.); (T.F.)
| | - Norbert Lignon
- Oncogenetics Department, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France; (N.L.); (V.F.); (A.S.); (E.C.); (G.C.); (L.G.)
| | - Thomas Filleron
- Biostatistics Department, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France; (J.G.); (N.M.); (B.C.); (T.F.)
| | - Dominique Telly
- Oncogenetics Laboratory, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France; (A.A.S.); (D.T.); (E.P.-L.)
| | - Emilie Perello-Lestrade
- Oncogenetics Laboratory, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France; (A.A.S.); (D.T.); (E.P.-L.)
| | - Viviane Feillel
- Oncogenetics Department, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France; (N.L.); (V.F.); (A.S.); (E.C.); (G.C.); (L.G.)
| | - Anne Staub
- Oncogenetics Department, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France; (N.L.); (V.F.); (A.S.); (E.C.); (G.C.); (L.G.)
| | | | - Edith Chipoulet
- Oncogenetics Department, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France; (N.L.); (V.F.); (A.S.); (E.C.); (G.C.); (L.G.)
| | - Gaëlle Collet
- Oncogenetics Department, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France; (N.L.); (V.F.); (A.S.); (E.C.); (G.C.); (L.G.)
| | - Fabienne Thomas
- DIAD, Inserm, Centre de Recherches en Cancérologie de Toulouse, Toulouse, France;
- Université de Toulouse, Université Toulouse III-Paul Sabatier, Toulouse, France
- Pharmacology Department, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France
| | - Laurence Gladieff
- Oncogenetics Department, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France; (N.L.); (V.F.); (A.S.); (E.C.); (G.C.); (L.G.)
| | - Christine Toulas
- Oncogenetics Laboratory, Oncopole Claudius Regaud, IUCT-Oncopole, Toulouse, France; (A.A.S.); (D.T.); (E.P.-L.)
- DIAD, Inserm, Centre de Recherches en Cancérologie de Toulouse, Toulouse, France;
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Akdaş EY, Temizci B, Karabay A. miR96- and miR182-driven regulation of cytoskeleton results in inhibition of glioblastoma motility. Cytoskeleton (Hoboken) 2023; 80:367-381. [PMID: 36961307 DOI: 10.1002/cm.21754] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/15/2023] [Accepted: 03/08/2023] [Indexed: 03/25/2023]
Abstract
Glioblastoma multiforme (GBM) is one of the most common forms of brain tumor. As an excessively invasive tumor type, GBM cannot be fully cured due to its invasion ability into healthy brain tissues. Therefore, molecular mechanisms behind GBM migration and invasion need to be deeply investigated for the development of effective GBM treatments. Cellular motility and invasion are strictly associated with the cytoskeleton, especially with actins and tubulins. Palladin, an actin-binding protein, tightly bundles actins during initial invadopodia and contraction fiber formations, which are essential for cellular motility. Spastin, a microtubule-binding protein, cuts microtubules into small pieces and acts on invadopodia elongation and cellular trafficking of invadopodia-associated proteins. Regulation of proteins such as spastin and palladin involved in dynamic reorganization of the cytoskeleton, are rapidly carried out by microRNAs at the posttranscriptional level. Therefore, determining possible regulatory miRNAs of spastin and palladin is critical to elucidate GBM motility. miR96 and miR182 down-regulate SPAST and PALLD at both transcript and protein levels. Over-expression of miR96 and miR182 resulted in inhibition of the motility. However, over-expression of spastin and palladin induced the motility. Spastin and palladin rescue of miR96- or miR182-transfected U251 MG cells resulted in diminished effects of the miRNAs and rescued the motility. Our results demonstrate that miR96 and miR182 over-expressions inhibit GBM motility by regulating cytoskeleton through spastin and palladin. These findings suggest that miR96 and miR182 should be investigated in more detail for their potential use in GBM therapy.
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Affiliation(s)
- Enes Yağız Akdaş
- Department of Molecular Biology and Genetics, Istanbul Technical University, Maslak, Istanbul, Turkey
| | - Benan Temizci
- Department of Molecular Biology and Genetics, Istanbul Technical University, Maslak, Istanbul, Turkey
| | - Arzu Karabay
- Department of Molecular Biology and Genetics, Istanbul Technical University, Maslak, Istanbul, Turkey
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Shu X, Chen M, Liu SY, Yu L, Sun LX, Sun LC, Ran YL. Palladin promotes cancer stem cell-like properties in lung cancer by activating Wnt/Β-Catenin signaling. Cancer Med 2023; 12:4510-4520. [PMID: 36047666 PMCID: PMC9972019 DOI: 10.1002/cam4.5192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/15/2022] [Accepted: 08/22/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Cancer stem cells (CSCs) are responsible for drug resistance, cancer relapse, and metastasis. Here, we report the first analysis of Palladin expression and its impacts on stem cell-like properties in lung cancer. METHODS Tissue microarrays were used to investigate Palladin expression and its association with prognosis. Immunofluorescence (IF), flow fluorescence assay, and Western blot were performed to detect Palladin expression in 6 NSCLC cell lines. Cell phenotypes and drug resistance were evaluated. Xenograft models were constructed to confirm the role of Palladin in vivo. RESULTS By using the tissue microarrays, Palladin was identified to be highly expressed in the cytoplasm, specifically in the cytomembrane of NSCLC, and its high expression is associated with poor prognosis. Palladin is widely expressed and enriched in the sphere cells. The in vitro and in vivo studies showed that Palladin promoted stem cell-like properties, including cell viability, invasion, migration, self-renewal abilities, taxol resistance, and tumorigenicity. Western blot revealed that Palladin promoted the accumulation of β-catenin and activated Wnt/β-catenin signaling. Tissue microarrays analysis further confirmed the positive correlation between Palladin and β-catenin. Wnt/β-catenin pathway inhibitor blocked the Palladin-induced enhancement of sphere-forming. CONCLUSIONS Palladin might act as an oncogene by promoting CSCs-like properties and tumorigenicity of NSCLC cells via the Wnt/β-catenin signaling pathway. Besides, Palladin was identified to have the potential as a cell surface marker for LCSCs identification. These findings provide a possible target for developing putative agents targeted to LCSCs.
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Affiliation(s)
- Xiong Shu
- Laboratory of Molecular Orthopaedics, Beijing Research Institute of Orthopaedics and Traumatology, Beijing JiShuiTan Hospital, Beijing, P. R. China
| | - Meng Chen
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Shi-Ya Liu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Long Yu
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Li-Xin Sun
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Li-Chao Sun
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Yu-Liang Ran
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
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Ogiwara K, Fujimori C, Takahashi T. The PGE 2/Ptger4b pathway regulates ovulation by inducing intracellular actin cytoskeleton rearrangement via the Rho/Rock pathway in the granulosa cells of periovulatory follicles in the teleost medaka. Mol Cell Endocrinol 2023; 560:111816. [PMID: 36410550 DOI: 10.1016/j.mce.2022.111816] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 11/21/2022]
Abstract
We have previously shown that the prostaglandin E2/Ptger4b receptor system is involved in ovulation in teleost medaka and induces intracellular actin cytoskeleton rearrangement in the granulosa cells of preovulatory follicles. In this study, we investigated the signaling pathways through which prostaglandin E2 induces a change in the actin cytoskeleton. Treating preovulatory follicles with GW627368X (Ptger4b antagonist), a Rho inhibitor, or Y-27632 [Rho-associated protein kinase (Rock) inhibitor] inhibited not only in vitro follicle ovulation but also intracellular actin cytoskeleton rearrangement. Active Rhoa-c and Rock1 were detected in follicles immediately before ovulation. GW627368X also inhibited Rhoa-c activation and cytoskeleton rearrangement. PGE2-induced actin cytoskeleton rearrangement was not observed in the Ptger4b-, Rhoa-c-, or Rock1-deficient OLHNI-2 cells. These results indicate that the PGE2/Ptger4b pathway regulates intracellular actin cytoskeleton rearrangement via the Rho/Rock pathway in the granulosa cells of preovulatory follicles during medaka ovulation.
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Affiliation(s)
- Katsueki Ogiwara
- Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan.
| | - Chika Fujimori
- Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Takayuki Takahashi
- Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
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Hassin O, Nataraj NB, Shreberk-Shaked M, Aylon Y, Yaeger R, Fontemaggi G, Mukherjee S, Maddalena M, Avioz A, Iancu O, Mallel G, Gershoni A, Grosheva I, Feldmesser E, Ben-Dor S, Golani O, Hendel A, Blandino G, Kelsen D, Yarden Y, Oren M. Different hotspot p53 mutants exert distinct phenotypes and predict outcome of colorectal cancer patients. Nat Commun 2022; 13:2800. [PMID: 35589715 PMCID: PMC9120190 DOI: 10.1038/s41467-022-30481-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 04/28/2022] [Indexed: 01/27/2023] Open
Abstract
The TP53 gene is mutated in approximately 60% of all colorectal cancer (CRC) cases. Over 20% of all TP53-mutated CRC tumors carry missense mutations at position R175 or R273. Here we report that CRC tumors harboring R273 mutations are more prone to progress to metastatic disease, with decreased survival, than those with R175 mutations. We identify a distinct transcriptional signature orchestrated by p53R273H, implicating activation of oncogenic signaling pathways and predicting worse outcome. These features are shared also with the hotspot mutants p53R248Q and p53R248W. p53R273H selectively promotes rapid CRC cell spreading, migration, invasion and metastasis. The transcriptional output of p53R273H is associated with preferential binding to regulatory elements of R273 signature genes. Thus, different TP53 missense mutations contribute differently to cancer progression. Elucidation of the differential impact of distinct TP53 mutations on disease features may make TP53 mutational information more actionable, holding potential for better precision-based medicine.
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Affiliation(s)
- Ori Hassin
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | | | | | - Yael Aylon
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Rona Yaeger
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Giulia Fontemaggi
- Oncogenomic and Epigenetic Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Saptaparna Mukherjee
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Martino Maddalena
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Adi Avioz
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Ortal Iancu
- The Institute for Advanced Materials and Nanotechnology, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | | | - Anat Gershoni
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Inna Grosheva
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Ester Feldmesser
- Department of Life Sciences Core Facilities, Weizmann Institute of Science, Rehovot, Israel
| | - Shifra Ben-Dor
- Department of Life Sciences Core Facilities, Weizmann Institute of Science, Rehovot, Israel
| | - Ofra Golani
- Department of Life Sciences Core Facilities, Weizmann Institute of Science, Rehovot, Israel
| | - Ayal Hendel
- The Institute for Advanced Materials and Nanotechnology, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, Israel
| | - Giovanni Blandino
- Oncogenomic and Epigenetic Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - David Kelsen
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yosef Yarden
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Moshe Oren
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.
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Hall MK, Burch AP, Schwalbe RA. Functional analysis of N-acetylglucosaminyltransferase-I knockdown in 2D and 3D neuroblastoma cell cultures. PLoS One 2021; 16:e0259743. [PMID: 34748597 PMCID: PMC8575246 DOI: 10.1371/journal.pone.0259743] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 10/25/2021] [Indexed: 12/12/2022] Open
Abstract
Tumor development can be promoted/suppressed by certain N-glycans attached to proteins at the cell surface. Here we examined aberrant neuronal properties in 2D and 3D rat neuroblastoma (NB) cell cultures with different N-glycan populations. Lectin binding studies revealed that the engineered N-glycosylation mutant cell line, NB_1(-Mgat1), expressed solely oligomannose N-glycans, and verified that the parental cell line, NB_1, and a previous engineered N-glycosylation mutant, NB_1(-Mgat2), expressed significant levels of higher order N-glycans, complex and hybrid N-glycans, respectively. NB_1 grew faster than mutant cell lines in monolayer and spheroid cell cultures. A 2-fold difference in growth between NB_1 and mutants occurred much sooner in 2D cultures relative to that observed in 3D cultures. Neurites and spheroid cell sizes were reduced in mutant NB cells of 2D and 3D cultures, respectively. Cell invasiveness was highest in 2D cultures of NB_1 cells compared to that of NB_1(-Mgat1). In contrast, NB_1 spheroid cells were much less invasive relative to NB_1(-Mgat1) spheroid cells while they were more invasive than NB_1(-Mgat2). Gelatinase activities supported the ranking of cell invasiveness in various cell lines. Both palladin and HK2 were more abundant in 3D than 2D cultures. Levels of palladin, vimentin and EGFR were modified in a different manner under 2D and 3D cultures. Thus, our results support variations in the N-glycosylation pathway and in cell culturing to more resemble in vivo tumor environments can impact the aberrant cellular properties, particularly cell invasiveness, of NB.
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Affiliation(s)
- M. Kristen Hall
- Department of Biochemistry and Molecular Biology, East Carolina University, Greenville, North Carolina, United States of America
| | - Adam P. Burch
- Department of Biochemistry and Molecular Biology, East Carolina University, Greenville, North Carolina, United States of America
| | - Ruth A. Schwalbe
- Department of Biochemistry and Molecular Biology, East Carolina University, Greenville, North Carolina, United States of America
- * E-mail:
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Kwon HK, Choi H, Park SG, Park WJ, Kim, DH, Park ZY. Integrated Quantitative Phosphoproteomics and Cell-based Functional Screening Reveals Specific Pathological Cardiac Hypertrophy-related Phosphorylation Sites. Mol Cells 2021; 44:500-516. [PMID: 34158421 PMCID: PMC8334354 DOI: 10.14348/molcells.2021.4002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 01/07/2019] [Indexed: 12/29/2022] Open
Abstract
Cardiac hypertrophic signaling cascades resulting in heart failure diseases are mediated by protein phosphorylation. Recent developments in mass spectrometry-based phosphoproteomics have led to the identification of thousands of differentially phosphorylated proteins and their phosphorylation sites. However, functional studies of these differentially phosphorylated proteins have not been conducted in a large-scale or high-throughput manner due to a lack of methods capable of revealing the functional relevance of each phosphorylation site. In this study, an integrated approach combining quantitative phosphoproteomics and cell-based functional screening using phosphorylation competition peptides was developed. A pathological cardiac hypertrophy model, junctate-1 transgenic mice and control mice, were analyzed using label-free quantitative phosphoproteomics to identify differentially phosphorylated proteins and sites. A cell-based functional assay system measuring hypertrophic cell growth of neonatal rat ventricle cardiomyocytes (NRVMs) following phenylephrine treatment was applied, and changes in phosphorylation of individual differentially phosphorylated sites were induced by incorporation of phosphorylation competition peptides conjugated with cell-penetrating peptides. Cell-based functional screening against 18 selected phosphorylation sites identified three phosphorylation sites (Ser-98, Ser-179 of Ldb3, and Ser-1146 of palladin) displaying near-complete inhibition of cardiac hypertrophic growth of NRVMs. Changes in phosphorylation levels of Ser-98 and Ser-179 in Ldb3 were further confirmed in NRVMs and other pathological/physiological hypertrophy models, including transverse aortic constriction and swimming models, using site-specific phospho-antibodies. Our integrated approach can be used to identify functionally important phosphorylation sites among differentially phosphorylated sites, and unlike conventional approaches, it is easily applicable for large-scale and/or high-throughput analyses.
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Affiliation(s)
- Hye Kyeong Kwon
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Hyunwoo Choi
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Sung-Gyoo Park
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Woo Jin Park
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Do Han Kim,
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Zee-Yong Park
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
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Jiang X, Qin Y, Kun L, Zhou Y. The Significant Role of the Microfilament System in Tumors. Front Oncol 2021; 11:620390. [PMID: 33816252 PMCID: PMC8010179 DOI: 10.3389/fonc.2021.620390] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 01/26/2021] [Indexed: 12/11/2022] Open
Abstract
Actin is the structural protein of microfilaments, and it usually exists in two forms: monomer and polymer. Among them, monomer actin is a spherical molecule composed of a polypeptide chain, also known as spherical actin. The function of actin polymers is to produce actin filaments, so it is also called fibroactin. The actin cytoskeleton is considered to be an important subcellular filament system. It interacts with numerous relevant proteins and regulatory cells, regulating basic functions, from cell division and muscle contraction to cell movement and ensuring tissue integrity. The dynamic reorganization of the actin cytoskeleton has immense influence on the progression and metastasis of cancer as well. This paper explores the significance of the microfilament network, the dynamic changes of its structure and function in the presence of a tumor, the formation process around the actin system, and the relevant proteins that may be target molecules for anticancer drugs so as to provide support and reference for interlinked cancer treatment research in the future.
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Affiliation(s)
- Xin Jiang
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, Basic School of Medicine, Central South University, Changsha, China
| | - Yiming Qin
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, Basic School of Medicine, Central South University, Changsha, China
| | - Liu Kun
- Department of Neurosurgery, Brain Hospital of Hunan Province, Clinical Medical School, Hunan University of Chinese Medicine, Changsha, China
| | - Yanhong Zhou
- NHC Key Laboratory of Carcinogenesis, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China.,Cancer Research Institute, Basic School of Medicine, Central South University, Changsha, China
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10
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El-Sibai M, El Hajj J, Al Haddad M, El Baba N, Al Saneh M, Daoud Khatoun W, Helaers R, Vikkula M, El Atat O, Sabbagh J, Abou Chebel N, Ghassibe-Sabbagh M. Dysregulation of Rho GTPases in orofacial cleft patients-derived primary cells leads to impaired cell migration, a potential cause of cleft/lip palate development. Cells Dev 2021; 165:203656. [PMID: 34024335 DOI: 10.1016/j.cdev.2021.203656] [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: 08/20/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 10/22/2022]
Abstract
Cleft lip and/or palate are a split in the lip, the palate or both. This results from the inability of lip buds and palatal shelves to properly migrate and assemble during embryogenesis. By extracting primary cells from a cleft patient, we aimed at offering a better understanding of the signaling mechanisms and interacting molecules involved in the lip and palate formation and fusion. With Rho GTPases being indirectly associated with cleft occurrence, we investigated the role of the latter in both. First, whole exome sequencing was conducted in a patient with cleft lip and palate. Primary fibroblastic cells originating from the upper right gingiva region were extracted and distinct cellular populations from two individuals were obtained: a control with no cleft phenotype and a patient with a cleft lip and palate. The genetic data showed three candidate variables in ARHGEF18, EPDR1, and CUL7. Next, the molecular data showed no significant change in proliferation rates between healthy patient cells and CL/P patient cells. However, CL/P patient cells showed decreased migration, increased adhesion and presented with a more elongated phenotype. Additionally, RhoA activity was upregulated in these cells, whereas Cdc42 activity was downregulated, resulting in loss of polarity. Our results are suggestive of a possible correlation between a dysregulation of Rho GTPases and the observed phenotype of cleft lip and palate patient cells. This insight into the intramolecular aspect of this disorder helps link the genetic defect with the observed phenotype and offers a possible mechanism by which CL/P occurs.
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Affiliation(s)
- Mirvat El-Sibai
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon.
| | - Joelle El Hajj
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon.
| | - Maria Al Haddad
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon.
| | - Nada El Baba
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon.
| | - Mounir Al Saneh
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon.
| | - Wassim Daoud Khatoun
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon.
| | - Raphaël Helaers
- Laboratory of Human Molecular Genetics, de Duve Institute, University of Louvain, Brussels, Belgium.
| | - Miikka Vikkula
- Laboratory of Human Molecular Genetics, de Duve Institute, University of Louvain, Brussels, Belgium.
| | - Oula El Atat
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon.
| | - Joseph Sabbagh
- Department of Restorative Dentistry and Endodontics, Faculty of Dental Medicine, Lebanese University, Beirut, Lebanon.
| | - Naji Abou Chebel
- Department of Otolaryngology - Head and Neck Surgery, Faculty of Medicine, American University of Beirut, Beirut, Lebanon.
| | - Michella Ghassibe-Sabbagh
- Department of Natural Sciences, School of Arts and Sciences, Lebanese American University, Beirut, Lebanon.
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11
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Davidson B, Bock AJ, Holth A, Nymoen DA. Expression of palladin is associated with disease progression in metastatic high-grade serous carcinoma. Cytopathology 2020; 31:572-578. [PMID: 32741023 DOI: 10.1111/cyt.12895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/14/2020] [Accepted: 07/25/2020] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To analyse the expression and clinical role of the actin-associated molecule palladin in serous effusions. METHODS PALLD mRNA expression was analysed by quantitative reverse transcription polymerase chain reaction in 83 high-grade serous carcinoma (HGSC) effusions. Fifteen malignant mesothelioma (MM) effusions and 18 surgical HGSC specimens from the ovary were studied for comparative purposes. Palladin protein expression by immunohistochemistry was analysed in another series consisting of 261 HGSC effusions. RESULTS PALLD mRNA was significantly overexpressed in HGSC compared to MM effusions (P < .001). Palladin expression by immunohistochemistry was found in HGSC cells in 106/261 (41%) effusions, most commonly focally (<5% of cells). PALLD expression was additionally higher in ovarian HGSC specimens compared to HGSC effusions (P < .001). However, immunohistochemistry showed only stromal expression of this protein in surgical specimens. PALLD mRNA expression in HGSC effusions was unrelated to clinicopathological parameters, chemotherapy response or survival. Palladin protein expression was higher in post-chemotherapy, mainly disease recurrence, specimens compared to chemo-naïve effusions tapped at diagnosis (P = .018), although it was unrelated to other clinicopathological parameters or survival. CONCLUSION PALLD mRNA is overexpressed in HGSC compared to MM effusions, and its protein product is overexpressed in post-chemotherapy compared to pre-chemotherapy HGSC effusions, suggesting upregulation along tumour progression. The presence of this molecule in HGSC effusions, at the mRNA or the protein level, is unrelated to disease outcome.
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Affiliation(s)
- Ben Davidson
- Department of Pathology, Oslo University Hospital, Norwegian Radium Hospital, Oslo, Norway.,Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Annika Jøntvedt Bock
- Department of Pathology, Oslo University Hospital, Norwegian Radium Hospital, Oslo, Norway
| | - Arild Holth
- Department of Pathology, Oslo University Hospital, Norwegian Radium Hospital, Oslo, Norway
| | - Dag Andre Nymoen
- Department of Pathology, Oslo University Hospital, Norwegian Radium Hospital, Oslo, Norway
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12
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Bahreini F, Rayzan E, Rezaei N. microRNA-related single-nucleotide polymorphisms and breast cancer. J Cell Physiol 2020; 236:1593-1605. [PMID: 32716070 DOI: 10.1002/jcp.29966] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 07/13/2020] [Indexed: 12/15/2022]
Abstract
Breast cancer, as the most common cancer in women which affects patients both mentally and physically, requires great attention in many areas and many levels as this cancer is known to be multifactorial. Single-stranded molecules called microRNAs with near 22 nucleotides are seen to act in central dogma of molecular biology by inhibiting the translation process; it is demonstrated that any alteration in their sequence especially single-nucleotide polymorphisms (SNPs) may lead into increasing the breast cancer risk. miR-SNPs are considered to be the potential biomarkers for early detection of breast cancer. As a result, this review documents the well-known miR-SNPs that are known to be associated with breast cancer. In this regard, two principals were discussed: (a) SNPs in the target genes of microRNAs and the alteration in gene expression due to this phenomenon; (b) changes based on the SNPs in the microRNA coding region and the impact on their interaction with target messenger RNA.
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Affiliation(s)
- Farbod Bahreini
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Elham Rayzan
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
- International Hematology/Oncology of Pediatrics Experts, Universal Scientific Education and Research Network, Tehran, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Network of Immunity in Infection, Malignancy and Autoimmunity, Universal Scientific Education and Research Network, Tehran, Iran
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13
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Chen X, Zhao H, Chen C, Li J, He J, Fu X, Zhao H. The HPA/SDC1 axis promotes invasion and metastasis of pancreatic cancer cells by activating EMT via FGF2 upregulation. Oncol Lett 2020; 19:211-220. [PMID: 31897132 PMCID: PMC6924090 DOI: 10.3892/ol.2019.11121] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 10/03/2019] [Indexed: 12/27/2022] Open
Abstract
Pancreatic cancer is characterized by the absence of early specific clinical symptoms, accompanied with rapid metastasis and invasion. It is one of the most prevalent types of cancer and more importantly, one of the most common types of malignant cancer with the highest mortality rate of all cancer types. The heparanase (HPA)/syndecan-1 (SDC1) axis has been reported to promote tumor growth, invasion, metastasis and angiogenesis in a variety of cancer types; however, studies into the role and mechanism of the HPA/SDC1 axis in pancreatic cancer are limited. The present study aimed to investigate the biological function and clinical significance of the HPA/SDC1 axis in pancreatic cancer. The results demonstrated that HPA is elevated in pancreatic cancer tissues and cell lines, and that its high expression was associated with poor prognosis. HPA was revealed to mediate an increase in fibroblast growth factor 2 (FGF2) expression by upregulating the expression of SDC1. Conversely, silencing HPA mediated the suppression of FGF2 expression. Furthermore, upregulated FGF2 was observed to increase the expression of downstream Palladin proteins by activating the PI3K/Akt signaling pathway and also lead to the activation of epithelial-mesenchymal transition (EMT). Subsequently, EMT was found to promote the migration and invasion of pancreatic cancer cells. In summary, the HPA/SDC1 axis was revealed to serve an important role in the regulation of FGF2, and was found to promote the invasion and metastasis of pancreatic cancer cells. These findings indicated that the HPA/SDC1 axis may be used as an effective therapeutic target for pancreatic cancer.
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Affiliation(s)
- Xidong Chen
- Graduate School, Shanxi Medical University, Taiyuan, Shanxi 030000, P.R. China
- Department of General Surgery, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi 030032, P.R. China
| | - Haichao Zhao
- Graduate School, Shanxi Medical University, Taiyuan, Shanxi 030000, P.R. China
- Department of General Surgery, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi 030032, P.R. China
| | - Changzhou Chen
- Graduate School, Shanxi Medical University, Taiyuan, Shanxi 030000, P.R. China
- Department of General Surgery, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi 030032, P.R. China
| | - Jian Li
- Graduate School, Shanxi Medical University, Taiyuan, Shanxi 030000, P.R. China
- Department of General Surgery, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi 030032, P.R. China
| | - Jiefeng He
- Department of General Surgery, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi 030032, P.R. China
| | - Xifeng Fu
- Department of General Surgery, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi 030032, P.R. China
| | - Haoliang Zhao
- Graduate School, Shanxi Medical University, Taiyuan, Shanxi 030000, P.R. China
- Department of General Surgery, Shanxi Dayi Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi 030032, P.R. China
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14
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Nicholson L, Lindsay L, Murphy CR. Change in distribution of cytoskeleton-associated proteins, lasp-1 and palladin, during uterine receptivity in the rat endometrium. Reprod Fertil Dev 2019; 30:1482-1490. [PMID: 29739492 DOI: 10.1071/rd17530] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 04/16/2018] [Indexed: 11/23/2022] Open
Abstract
The epithelium of the uterine lumen is the first point of contact with the blastocyst before implantation. To facilitate pregnancy, these uterine epithelial cells (UECs) undergo morphological changes specific to the receptive uterus. These changes include basal, lateral and apical alterations in the plasma membrane of UECs. This study looked at the cytoskeletal and focal adhesion-associated proteins, lasp-1 and palladin, in the uterus during early pregnancy in the rat. Two palladin isoforms, 140 kDa and 90 kDa, were analysed, with the migration-associated 140-kDa isoform increasing significantly at the time of implantation when compared with the time of fertilisation. Lasp-1 was similarly increased at this time, whilst also being located predominantly apically and laterally in the UECs, suggesting a role in the initial contact between the UECs and the blastocyst. This is the first study to investigate palladin and lasp-1 in the uterine luminal epithelium and suggests an importance for these cytoskeletal proteins in the morphological changes the UECs undergo for pregnancy to occur.
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Affiliation(s)
- Leigh Nicholson
- Cell and Reproductive Biology Laboratory, Discipline of Anatomy and Histology, School of Medical Sciences, University of Sydney, Camperdown, NSW 2050, Australia
| | - Laura Lindsay
- Cell and Reproductive Biology Laboratory, Discipline of Anatomy and Histology, School of Medical Sciences, University of Sydney, Camperdown, NSW 2050, Australia
| | - Christopher R Murphy
- Cell and Reproductive Biology Laboratory, Discipline of Anatomy and Histology, School of Medical Sciences, University of Sydney, Camperdown, NSW 2050, Australia
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15
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Erami Z, Heitz S, Bresnick AR, Backer JM. PI3Kβ links integrin activation and PI(3,4)P 2 production during invadopodial maturation. Mol Biol Cell 2019; 30:2367-2376. [PMID: 31318314 PMCID: PMC6741064 DOI: 10.1091/mbc.e19-03-0182] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 06/17/2019] [Accepted: 07/01/2019] [Indexed: 11/17/2022] Open
Abstract
The invasion of tumor cells from the primary tumor is mediated by invadopodia, actin-rich protrusive organelles that secrete matrix metalloproteases and degrade the extracellular matrix. This coupling between protrusive activity and matrix degradation facilitates tumor invasion. We previously reported that the PI3Kβ isoform of PI 3-kinase, which is regulated by both receptor tyrosine kinases and G protein-coupled receptors, is required for invasion and gelatin degradation in breast cancer cells. We have now defined the mechanism by which PI3Kβ regulates invadopodia. We find that PI3Kβ is specifically activated downstream from integrins, and is required for integrin-stimulated spreading and haptotaxis as well as integrin-stimulated invadopodia formation. Surprisingly, these integrin-stimulated and PI3Kβ-dependent responses require the production of PI(3,4)P2 by the phosphoinositide 5'-phosphatase SHIP2. Thus, integrin activation of PI3Kβ is coupled to the SHIP2-dependent production of PI(3,4)P2, which regulates the recruitment of PH domain-containing scaffolds such as lamellipodin to invadopodia. These findings provide novel mechanistic insight into the role of PI3Kβ in the regulation of invadopodia in breast cancer cells.
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Affiliation(s)
- Zahra Erami
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Samantha Heitz
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Anne R. Bresnick
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Jonathan M. Backer
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461
- Department of Biochemistry, Albert Einstein College of Medicine, Bronx, NY 10461
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16
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Zhao X, Jiang M, Wang Z. TPM4 promotes cell migration by modulating F-actin formation in lung cancer. Onco Targets Ther 2019; 12:4055-4063. [PMID: 31239699 PMCID: PMC6554522 DOI: 10.2147/ott.s198542] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 04/08/2019] [Indexed: 12/29/2022] Open
Abstract
Background: Tropomyosin 4 (TPM4) is a member of the tropomyosin family of actin-binding proteins. Abnormal level of TPM4 is found in several cancers, and TPM4 is considered as a potential detecting marker for ovarian cancer, breast cancer, colon cancer, keratoacanthoma and esophageal squamous cell carcinoma. In this paper, the function of TPM4 in lung cancer cell lines was determined. Materials and methods: TPM4 knockout cells were constructed by CRISPR/CAS9 technique. TPM4 overexpression cells were also constructed based on TPM4 knockout cells. Cell growth ability was detected by MTS assay. The potency of cell motility was investigated using transwell assay and wound scratch assay. The protein levels in lung cancer cells were determined by western-blot. Immunofluorescence technique was used to image the structure of F-actin. Results: As a result, TPM4 downregulation and TPM4 upregulation cell models were obtained successfully. Cell motility was inhibited by the suppression of TPM4 while cell migration was enhanced in TPM4 upregulated cells. But TPM4 was not involved in cell proliferation and EMT progression. Microfilaments were depolymerized result from the suppression of TPM4 expression. And F-actin assembly was increased when TPM4 was upregulated. Conclusion: In summary, TPM4 was able to promote cell motility by altering the actin cytoskeleton directly.
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Affiliation(s)
- Xiaoting Zhao
- Department of Cellular and Molecular Biology, Beijing Chest Hospital, Capital Medical University /Beijing Tuberculosis and Thoracic Tumor Research Institute, Tongzhou, Beijing, People's Republic of China
| | - Mei Jiang
- Department of Cellular and Molecular Biology, Beijing Chest Hospital, Capital Medical University /Beijing Tuberculosis and Thoracic Tumor Research Institute, Tongzhou, Beijing, People's Republic of China
| | - Ziyu Wang
- Department of Cellular and Molecular Biology, Beijing Chest Hospital, Capital Medical University /Beijing Tuberculosis and Thoracic Tumor Research Institute, Tongzhou, Beijing, People's Republic of China
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17
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ANXA2 Tyr23 and FLNA Ser2152 phosphorylation associate with poor prognosis in hepatic carcinoma revealed by quantitative phosphoproteomics analysis. J Proteomics 2019; 200:111-122. [PMID: 30951906 DOI: 10.1016/j.jprot.2019.03.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 03/15/2019] [Accepted: 03/31/2019] [Indexed: 02/06/2023]
Abstract
Hepatoma is one of the most common malignant tumors, and most patients have very poor prognosis. Early prediction and intervention of the hepatoma recurrence/metastasis are the most effective way to improve the patients' clinical outcomes. Here, we used isobaric tags for relative and absolute quantitation (iTRAQ) based quantitative phospho-proteomics approach to identify biomarkers associated with hepatoma recurrence/metastasis in hepatoma cell lines with increasing metastasis ability. In total, 75 phosphorylated peptides corresponding to 60 phosphoproteins were significantly dysregulated and the participated biological processes of these phosphoproteins were tightly associated with tumor metastasis. Further signaling pathway analysis revealed that key signaling pathways which play crucial roles in cancer metastasis have been significantly over activated in the highly metastatic cells. Furthermore, the phosphorylation of FLNASer2152 and ANXA2Tyr23 were validated to be significantly up regulated in the high-metastatic cells comparing with the low-metastatic cells. By further investigation the clinical significance of the phosphorylation of FLNASer2152 and ANXA2Tyr23 in large-scale clinical samples, revealed that the over phosphorylation of FLNASer2152 and ANXA2Tyr23 were associated with poor prognosis and might be potential prognostic biomarkers for the primary hepatoma. When FLNASer2152 combined with ANXA2Tyr23, it had a better prognostic value for both OS and TTR.
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18
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Vilardell J, Girardi C, Marin O, Cozza G, Pinna LA, Ruzzene M. The importance of negative determinants as modulators of CK2 targeting. The lesson of Akt2 S131. PLoS One 2018; 13:e0193479. [PMID: 29494643 PMCID: PMC5832243 DOI: 10.1371/journal.pone.0193479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 02/12/2018] [Indexed: 01/26/2023] Open
Abstract
CK2 is a pleiotropic S/T protein kinase (formerly known as casein kinase 2) which is attracting increasing interest as therapeutic target, and the identification of its substrates is a crucial step in determining its involvement in different pathological conditions. We recently found that S131 of Akt2 (homologous to the well established CK2 target S129 of Akt1) is not phosphorylated by CK2 either in vitro or in vivo, although the consensus sequence recognized by CK2 (S/T-x-x-E/D/pS/pT) is conserved in it. Here, by exploiting synthetic peptides, in cell transfection experiments, and computational analysis, we show that a single sequence element, a T at position n+1, hampers phosphorylation, causing an α-helix structure organization which prevents the recognition of its own consensus by CK2. Our results highlight the role of negative determinants as crucial modulators of CK2 targeting and corroborate the concept that Akt1 and Akt2 display isoform specific features. Experiments with synthetic peptides suggest that Akt2 S131 could be phosphorylated by kinases of the Plk (Polo-like kinase) family, which are insensitive to the presence of the n+1 T. The low phylogenetic conservation of the Akt2 sequence around S131, as opposed to the extremely well-conserved Akt1 homologous sequence, would indicate a dominant positive role in the selective pressure only for the Akt1 phosphoacceptor site committed to undergo phosphorylation by CK2. By contrast, Akt2 S131 may mediate the response to specific physio/pathological conditions, being consequently shielded against basal CK2 targeting.
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Affiliation(s)
- Jordi Vilardell
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Cristina Girardi
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Oriano Marin
- Department of Biomedical Sciences, University of Padova, Padova, Italy
| | - Giorgio Cozza
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Lorenzo A. Pinna
- Department of Biomedical Sciences, University of Padova, Padova, Italy
- CNR Neuroscience Institute, Padova, Italy
| | - Maria Ruzzene
- Department of Biomedical Sciences, University of Padova, Padova, Italy
- CNR Neuroscience Institute, Padova, Italy
- * E-mail:
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19
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Francis JC, Capper A, Ning J, Knight E, de Bono J, Swain A. SOX9 is a driver of aggressive prostate cancer by promoting invasion, cell fate and cytoskeleton alterations and epithelial to mesenchymal transition. Oncotarget 2018; 9:7604-7615. [PMID: 29484136 PMCID: PMC5800928 DOI: 10.18632/oncotarget.24123] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 07/03/2017] [Indexed: 01/03/2023] Open
Abstract
Aggressive lethal prostate cancer is characterised by tumour invasion, metastasis and androgen resistance. Understanding the mechanisms by which localised disease progresses to advanced lethal stages is key to the development of effective therapies. Here we have identified a novel role for the transcription factor, SOX9, as a driver of aggressive invasive prostate cancer. Using genetically modified mouse models, we show that increased Sox9 expression in the prostate epithelia of animals with Pten loss leads to a highly invasive phenotype and metastasis. In depth analysis of these mice and related in vitro models reveals that SOX9 acts a key regulator of various processes that together promote tumour progression. We show that this factor promotes cell lineage plasticity with cells acquiring properties of basal stem cells and an increase in proliferation. In addition, increased SOX9 leads to changes in cytoskeleton and adhesion, deposition of extracellular matrix and epithelia to mesenchyme transition, properties of highly invasive cells. Analysis of castrated mice showed that the invasive phenotype driven by SOX9 is independent of androgen levels. Our study has identified a novel driver of prostate cancer progression and highlighted the cellular and molecular processes that are regulated by Sox9 to achieve invasive disease.
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Affiliation(s)
- Jeffrey C. Francis
- Division of Cancer Biology, The Institute of Cancer Research, London SW3 6JB, UK
| | - Amy Capper
- Division of Cancer Biology, The Institute of Cancer Research, London SW3 6JB, UK
| | - Jian Ning
- Tumour Profiling Unit, The Institute of Cancer Research, London SW3 6JB, UK
| | - Eleanor Knight
- Tumour Profiling Unit, The Institute of Cancer Research, London SW3 6JB, UK
| | - Johann de Bono
- Division of Clinical Studies, The Institute of Cancer Research, London SM2 5NG, UK
| | - Amanda Swain
- Division of Cancer Biology, The Institute of Cancer Research, London SW3 6JB, UK
- Tumour Profiling Unit, The Institute of Cancer Research, London SW3 6JB, UK
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20
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Ocaña OH, Coskun H, Minguillón C, Murawala P, Tanaka EM, Galcerán J, Muñoz-Chápuli R, Nieto MA. A right-handed signalling pathway drives heart looping in vertebrates. Nature 2018; 549:86-90. [PMID: 28880281 PMCID: PMC5590727 DOI: 10.1038/nature23454] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 06/29/2017] [Indexed: 12/19/2022]
Abstract
The majority of animals show external bilateral symmetry, precluding the observation of multiple internal left-right (L/R) asymmetries that are fundamental for organ packaging and function1,2. In vertebrates, left identity is mediated by the left-specific Nodal-Pitx2 axis that is repressed on the right-hand side by the epithelial-mesenchymal transition (EMT) inducer Snail13,4. Despite some existing evidence3,5, it remains unclear whether an equivalent instructive pathway provides right-hand specific information to the embryo. Here we show that in zebrafish, BMP mediates the L/R asymmetric activation of another EMT inducer, Prrx1a, in the lateral plate mesoderm (LPM) with higher levels on the right. Prrx1a drives L/R differential cell movements towards the midline leading to a leftward displacement of the cardiac posterior pole through an actomyosin-dependent mechanism. Downregulation of Prrx1a prevents heart looping and leads to mesocardia. Two parallel and mutually repressed pathways, respectively driven by Nodal and BMP on the left and right LPM, converge on the asymmetric activation of Pitx2 and Prrx1, two transcription factors that integrate left and right information to govern heart morphogenesis. This mechanism is conserved in the chicken embryo and, in the mouse, Snail1 fulfills the role played by Prrx1 in fish and chick. Thus, a differential L/R EMT produces asymmetric cell movements and forces, more prominent from the right, that drive heart laterality in vertebrates.
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Affiliation(s)
- Oscar H Ocaña
- Instituto de Neurociencias (CSIC-UMH), Avenida Ramón y Cajal, s/n, Sant Joan d'Alacant, Alicante, Spain
| | - Hakan Coskun
- Instituto de Neurociencias (CSIC-UMH), Avenida Ramón y Cajal, s/n, Sant Joan d'Alacant, Alicante, Spain
| | | | - Prayag Murawala
- DFG Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Fetscherstrasse 105, Dresden, Germany
| | - Elly M Tanaka
- DFG Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Fetscherstrasse 105, Dresden, Germany
| | - Joan Galcerán
- Instituto de Neurociencias (CSIC-UMH), Avenida Ramón y Cajal, s/n, Sant Joan d'Alacant, Alicante, Spain
| | - Ramón Muñoz-Chápuli
- University of Málaga, Department of Animal Biology, E-29071 Málaga, Spain.,Andalusian Center for Nanomedicine and Biotechnology (BIONAND), Málaga, Spain
| | - M Angela Nieto
- Instituto de Neurociencias (CSIC-UMH), Avenida Ramón y Cajal, s/n, Sant Joan d'Alacant, Alicante, Spain
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21
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Worzfeld T, Finkernagel F, Reinartz S, Konzer A, Adhikary T, Nist A, Stiewe T, Wagner U, Looso M, Graumann J, Müller R. Proteotranscriptomics Reveal Signaling Networks in the Ovarian Cancer Microenvironment. Mol Cell Proteomics 2017; 17:270-289. [PMID: 29141914 PMCID: PMC5795391 DOI: 10.1074/mcp.ra117.000400] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Indexed: 01/17/2023] Open
Abstract
Ovarian cancer is characterized by early transcoelomic metastatic spread via the peritoneal fluid, where tumor cell spheroids (TU), tumor-associated T cells (TAT), and macrophages (TAM) create a unique microenvironment promoting cancer progression, chemoresistance, and immunosuppression. However, the underlying signaling mechanisms remain largely obscure. To chart these signaling networks, we performed comprehensive proteomic and transcriptomic analyses of TU, TAT, and TAM from ascites of ovarian cancer patients. We identify multiple intercellular signaling pathways driven by protein or lipid mediators that are associated with clinical outcome. Beyond cytokines, chemokines and growth factors, these include proteins of the extracellular matrix, immune checkpoint regulators, complement factors, and a prominent network of axon guidance molecules of the ephrin, semaphorin, and slit families. Intriguingly, both TU and TAM from patients with a predicted short survival selectively produce mediators supporting prometastatic events, including matrix remodeling, stemness, invasion, angiogenesis, and immunosuppression, whereas TAM associated with a longer survival express cytokines linked to effector T-cell chemoattraction and activation. In summary, our study uncovers previously unrecognized signaling networks in the ovarian cancer microenvironment that are of potential clinical relevance.
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Affiliation(s)
- Thomas Worzfeld
- From the ‡Institute of Pharmacology, Biochemical-Pharmacological Center (BPC), Philipps University, Marburg, Germany 35043; .,§Department of Pharmacology, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany 61231
| | - Florian Finkernagel
- ¶Institute of Molecular Biology and Tumor Research (IMT), Center for Tumor Biology and Immunology (ZTI), Philipps University, Marburg, Germany 35043
| | - Silke Reinartz
- ‖Clinic for Gynecology, Gynecological Oncology and Gynecological Endocrinology, Center for Tumor Biology and Immunology (ZTI), Philipps University, Marburg, Germany 35043
| | - Anne Konzer
- **Biomolecular Mass Spectrometry, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany 61231
| | - Till Adhikary
- ¶Institute of Molecular Biology and Tumor Research (IMT), Center for Tumor Biology and Immunology (ZTI), Philipps University, Marburg, Germany 35043
| | - Andrea Nist
- ‡‡Genomics Core Facility, Center for Tumor Biology and Immunology (ZTI), Philipps University, Marburg, Germany 35043
| | - Thorsten Stiewe
- ‡‡Genomics Core Facility, Center for Tumor Biology and Immunology (ZTI), Philipps University, Marburg, Germany 35043
| | - Uwe Wagner
- §§Clinic for Gynecology, Gynecological Oncology and Gynecological Endocrinology, University Hospital of Giessen and Marburg (UKGM), Marburg, Germany 35043
| | - Mario Looso
- ¶¶Bioinformatics, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany 61231
| | - Johannes Graumann
- **Biomolecular Mass Spectrometry, Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany 61231
| | - Rolf Müller
- ¶Institute of Molecular Biology and Tumor Research (IMT), Center for Tumor Biology and Immunology (ZTI), Philipps University, Marburg, Germany 35043;
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22
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Ngan E, Kiepas A, Brown CM, Siegel PM. Emerging roles for LPP in metastatic cancer progression. J Cell Commun Signal 2017; 12:143-156. [PMID: 29027626 DOI: 10.1007/s12079-017-0415-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 10/03/2017] [Indexed: 01/21/2023] Open
Abstract
LIM domain containing proteins are important regulators of diverse cellular processes, and play pivotal roles in regulating the actin cytoskeleton. Lipoma Preferred Partner (LPP) is a member of the zyxin family of LIM proteins that has long been characterized as a promoter of mesenchymal/fibroblast cell migration. More recently, LPP has emerged as a critical inducer of tumor cell migration, invasion and metastasis. LPP is thought to contribute to these malignant phenotypes by virtue of its ability to shuttle into the nucleus, localize to adhesions and, most recently, to promote invadopodia formation. In this review, we will examine the mechanisms through which LPP regulates the functions of adhesions and invadopodia, and discuss potential roles of LPP in mediating cellular responses to mechanical cues within these mechanosensory structures.
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Affiliation(s)
- Elaine Ngan
- Goodman Cancer Research Centre, McGill University, 1160 Pine Avenue West, Room 508, Montréal, Québec, H3A 1A3, Canada.,Department of Medicine, McGill University, Montréal, Québec, Canada
| | - Alex Kiepas
- Department of Physiology, McGill University, Montréal, Québec, Canada
| | - Claire M Brown
- Department of Physiology, McGill University, Montréal, Québec, Canada
| | - Peter M Siegel
- Goodman Cancer Research Centre, McGill University, 1160 Pine Avenue West, Room 508, Montréal, Québec, H3A 1A3, Canada. .,Department of Medicine, McGill University, Montréal, Québec, Canada.
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23
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Li S, Li B, Zheng Y, Li M, Shi L, Pu X. Exploring functions of long noncoding RNAs across multiple cancers through co-expression network. Sci Rep 2017; 7:754. [PMID: 28389669 PMCID: PMC5429718 DOI: 10.1038/s41598-017-00856-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 03/15/2017] [Indexed: 12/20/2022] Open
Abstract
In contrast to protein-coding genes, long-noncoding RNAs (lncRNAs) are much less well understood, despite increasing evidence indicating a wide range of their biological functions, and possible roles in various cancers. Based on public RNA-seq datasets of four solid cancer types, we here utilize Weighted Correlation Network Analysis (WGCNA) to propose a strategy for exploring the functions of lncRNAs altered in more than two cancer types, which we call onco-lncRNAs. Results indicate that cancer-expressed lncRNAs show high tissue specificity and are weakly expressed, more so than protein-coding genes. Most of the 236 onco-lncRNAs we identified have not been reported to have associations with cancers before. Our analysis exploits co-expression network to reveal that onco-lncRNAs likely play key roles in the multistep development of human cancers, covering a wide range of functions in genome stability maintenance, signaling, cell adhesion and motility, morphogenesis, cell cycle, immune and inflammatory response. These observations contribute to a more comprehensive understanding of cancer-associated lncRNAs, while demonstrating a novel and efficient strategy for subsequent functional studies of lncRNAs.
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Affiliation(s)
- Suqing Li
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Bin Li
- Center for Pharmacogenomics, School of Life Sciences, and State Key Laboratory of Genetic Engineering and Shanghai Cancer Center/Cancer Institute, Fudan University, Shanghai, 201203, China
| | - Yuanting Zheng
- Center for Pharmacogenomics, School of Life Sciences, and State Key Laboratory of Genetic Engineering and Shanghai Cancer Center/Cancer Institute, Fudan University, Shanghai, 201203, China.,Collaborative Innovation Center for Genetics and Development, Fudan University, Shanghai, 200438, China
| | - Menglong Li
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Leming Shi
- Center for Pharmacogenomics, School of Life Sciences, and State Key Laboratory of Genetic Engineering and Shanghai Cancer Center/Cancer Institute, Fudan University, Shanghai, 201203, China. .,Collaborative Innovation Center for Genetics and Development, Fudan University, Shanghai, 200438, China.
| | - Xuemei Pu
- College of Chemistry, Sichuan University, Chengdu, 610064, China.
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24
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Tan J, Chen XJ, Shen CL, Zhang HX, Tang LY, Lu SY, Wu WT, Kuang Y, Fei J, Wang ZG. Lacking of palladin leads to multiple cellular events changes which contribute to NTD. Neural Dev 2017; 12:4. [PMID: 28340616 PMCID: PMC5366166 DOI: 10.1186/s13064-017-0081-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 03/03/2017] [Indexed: 11/23/2022] Open
Abstract
Background The actin cytoskeleton-associated protein palladin plays an important role in cell motility, morphogenesis and adhesion. In mice, Palladin deficient embryos are lethal before embryonic day (E) 15.5, and exhibit severe cranial neural tube and body wall closure defects. However, the mechanism how palladin regulates the process of cranial neural tube closure (NTC) remains unknown. Methods In this paper, we use gene knockout mouse to elucidate the function of palladin in the regulation of NTC process. Results We initially focuse on the expression pattern of palladin and found that in embryonic brain, palladin is predominantly expressed in the neural folds at E9.5. We further check the major cellular events in the neural epithelium that may contribute to NTC during the early embryogenesis. Palladin deficiency leads to a disturbance of cytoskeleton in the neural tube and the cultured neural progenitors. Furthermore, increased cell proliferation, decreased cell differentiation and diminished apical cell apoptosis of neural epithelium are found in palladin deficient embryos. Cell cycle of neural progenitors in Palladin-/- embryos is much shorter than that in wt ones. Cell adhesion shows a reduction in Palladin-/- neural tubes. Conclusions Palladin is expressed with proper spatio-temporal pattern in the neural folds. It plays a crucial role in regulating mouse cranial NTC by modulating cytoskeleton, proliferation, differentiation, apoptosis, and adhesion of neural epithelium. Our findings facilitate further study of the function of palladin and the underlying molecular mechanism involved in NTC. Electronic supplementary material The online version of this article (doi:10.1186/s13064-017-0081-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Juan Tan
- State Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine (SJTUSM), Building 17, No. 197, Ruijin 2nd Rd, Shanghai, 200025, China.,Model Organism Division, E-Institutes of Shanghai Universities, SJTUSM, Shanghai, 200025, China
| | - Xue-Jiao Chen
- State Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine (SJTUSM), Building 17, No. 197, Ruijin 2nd Rd, Shanghai, 200025, China.,Model Organism Division, E-Institutes of Shanghai Universities, SJTUSM, Shanghai, 200025, China
| | - Chun-Ling Shen
- State Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine (SJTUSM), Building 17, No. 197, Ruijin 2nd Rd, Shanghai, 200025, China
| | - Hong-Xin Zhang
- State Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine (SJTUSM), Building 17, No. 197, Ruijin 2nd Rd, Shanghai, 200025, China
| | - Ling-Yun Tang
- State Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine (SJTUSM), Building 17, No. 197, Ruijin 2nd Rd, Shanghai, 200025, China.,Model Organism Division, E-Institutes of Shanghai Universities, SJTUSM, Shanghai, 200025, China
| | - Shun-Yuan Lu
- State Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine (SJTUSM), Building 17, No. 197, Ruijin 2nd Rd, Shanghai, 200025, China
| | - Wen-Ting Wu
- Shanghai Research Center for Model Organisms, Shanghai, 201203, China
| | - Ying Kuang
- Shanghai Research Center for Model Organisms, Shanghai, 201203, China
| | - Jian Fei
- Shanghai Research Center for Model Organisms, Shanghai, 201203, China
| | - Zhu-Gang Wang
- State Key Laboratory of Medical Genomics, Research Center for Experimental Medicine, Rui-Jin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine (SJTUSM), Building 17, No. 197, Ruijin 2nd Rd, Shanghai, 200025, China. .,Model Organism Division, E-Institutes of Shanghai Universities, SJTUSM, Shanghai, 200025, China. .,Shanghai Research Center for Model Organisms, Shanghai, 201203, China.
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25
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Zanotelli MR, Bordeleau F, Reinhart-King CA. Subcellular regulation of cancer cell mechanics. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2017. [DOI: 10.1016/j.cobme.2017.02.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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26
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Gilam A, Conde J, Weissglas-Volkov D, Oliva N, Friedman E, Artzi N, Shomron N. Local microRNA delivery targets Palladin and prevents metastatic breast cancer. Nat Commun 2016; 7:12868. [PMID: 27641360 PMCID: PMC5031803 DOI: 10.1038/ncomms12868] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 08/10/2016] [Indexed: 12/27/2022] Open
Abstract
Metastasis is the primary cause for mortality in breast cancer. MicroRNAs, gene expression master regulators, constitute an attractive candidate to control metastasis. Here we show that breast cancer metastasis can be prevented by miR-96 or miR-182 treatment, and decipher the mechanism of action. We found that miR-96/miR-182 downregulate Palladin protein levels, thereby reducing breast cancer cell migration and invasion. A common SNP, rs1071738, at the miR-96/miR-182-binding site within the Palladin 3'-UTR abolishes miRNA:mRNA binding, thus diminishing Palladin regulation by these miRNAs. Regulation is successfully restored by applying complimentary miRNAs. A hydrogel-embedded, gold-nanoparticle-based delivery vehicle provides efficient local, selective, and sustained release of miR-96/miR-182, markedly suppressing metastasis in a breast cancer mouse model. Combined delivery of the miRNAs with a chemotherapy drug, cisplatin, enables significant primary tumour shrinkage and metastasis prevention. Our data corroborate the role of miRNAs in metastasis, and suggest miR-96/miR-182 delivery as a potential anti-metastatic drug.
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Affiliation(s)
- Avital Gilam
- Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - João Conde
- Massachusetts Institute of Technology, Institute for Medical Engineering and Science, Cambridge, Massachusetts 02139, USA.,School of Engineering and Materials Science, Queen Mary University of London, London E1 4NS, UK
| | - Daphna Weissglas-Volkov
- Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - Nuria Oliva
- Massachusetts Institute of Technology, Institute for Medical Engineering and Science, Cambridge, Massachusetts 02139, USA
| | - Eitan Friedman
- The Susanne Levy Gertner Oncogenetics Unit, The Danek Gertner Institute of Human Genetics, Chaim Sheba Medical Center Tel-Hashomer, 52621 Ramat Gan, Israel
| | - Natalie Artzi
- Massachusetts Institute of Technology, Institute for Medical Engineering and Science, Cambridge, Massachusetts 02139, USA.,Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02142, USA.,Department of Medicine, Biomedical Engineering Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Noam Shomron
- Department of Cell and Developmental Biology, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel
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27
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Yadav R, Vattepu R, Beck MR. Phosphoinositide Binding Inhibits Actin Crosslinking and Polymerization by Palladin. J Mol Biol 2016; 428:4031-4047. [PMID: 27487483 DOI: 10.1016/j.jmb.2016.07.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 07/23/2016] [Accepted: 07/26/2016] [Indexed: 12/11/2022]
Abstract
Actin cytoskeleton remodeling requires the coordinated action of a large number of actin binding proteins that reorganize the actin cytoskeleton by promoting polymerization, stabilizing filaments, causing branching, or crosslinking filaments. Palladin is a key cytoskeletal actin binding protein whose normal function is to enable cell motility during development of tissues and organs of the embryo and in wound healing, but palladin is also responsible for regulating the ability of cancer cells to become invasive and metastatic. The membrane phosphoinositide phosphatidylinositol (PI) 4,5-bisphosphate [PI(4,5)P2] is a well-known precursor for intracellular signaling and a bona fide regulator of actin cytoskeleton reorganization. Our results show that two palladin domains [immunoglobulin (Ig) 3 and 34] interact with the head group of PI(4,5)P2 with moderate affinity (apparent Kd=17μM). Interactions with PI(4,5)P2 decrease the actin polymerizing activity of Ig domain 3 of palladin (Palld-Ig3). Furthermore, NMR titration and docking studies show that residues K38 and K51, which are present on the β-sheet C and D, form salt bridges with the head group of PI(4,5)P2. Moreover, charge neutralization at lysine 38 in the Palld-Ig3 domain severely limits the actin polymerizing and bundling activity of Palld-Ig3. Our results provide biochemical proof that PI(4,5)P2 functions as a moderator of palladin activity and have also identified residues directly involved in the crosslinking activity of palladin.
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Affiliation(s)
- Rahul Yadav
- Chemistry Department, Wichita State University, 1845 Fairmount Street, Wichita, KS 67260, USA.
| | - Ravi Vattepu
- Chemistry Department, Wichita State University, 1845 Fairmount Street, Wichita, KS 67260, USA.
| | - Moriah R Beck
- Chemistry Department, Wichita State University, 1845 Fairmount Street, Wichita, KS 67260, USA.
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28
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McLane JS, Ligon LA. Palladin mediates stiffness-induced fibroblast activation in the tumor microenvironment. Biophys J 2016. [PMID: 26200861 DOI: 10.1016/j.bpj.2015.06.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Mechanical properties of the tumor microenvironment have emerged as key factors in tumor progression. It has been proposed that increased tissue stiffness can transform stromal fibroblasts into carcinoma-associated fibroblasts. However, it is unclear whether the three to five times increase in stiffness seen in tumor-adjacent stroma is sufficient for fibroblast activation. In this study we developed a three-dimensional (3D) hydrogel model with precisely tunable stiffness and show that a physiologically relevant increase in stiffness is sufficient to lead to fibroblast activation. We found that soluble factors including CC-motif chemokine ligand (CCL) chemokines and fibronectin are necessary for this activation, and the combination of C-C chemokine receptor type 4 (CCR4) chemokine receptors and β1 and β3 integrins are necessary to transduce these chemomechanical signals. We then show that these chemomechanical signals lead to the gene expression changes associated with fibroblast activation via a network of intracellular signaling pathways that include focal adhesion kinase (FAK) and phosphoinositide 3-kinase (PI3K). Finally, we identify the actin-associated protein palladin as a key node in these signaling pathways that result in fibroblast activation.
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Affiliation(s)
- Joshua S McLane
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York; Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, New York
| | - Lee A Ligon
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York; Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, New York.
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29
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Janssens V, Zwaenepoel K, Rossé C, Petit MMR, Goris J, Parker PJ. PP2A binds to the LIM domains of lipoma-preferred partner through its PR130/B″ subunit to regulate cell adhesion and migration. J Cell Sci 2016; 129:1605-18. [PMID: 26945059 PMCID: PMC5333791 DOI: 10.1242/jcs.175778] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Accepted: 02/18/2016] [Indexed: 01/23/2023] Open
Abstract
Here, we identify the LIM protein lipoma-preferred partner (LPP) as a binding partner of a specific protein phosphatase 2A (PP2A) heterotrimer that is characterised by the regulatory PR130/B″α1 subunit (encoded by PPP2R3A). The PR130 subunit interacts with the LIM domains of LPP through a conserved Zn²⁺-finger-like motif in the differentially spliced N-terminus of PR130. Isolated LPP-associated PP2A complexes are catalytically active. PR130 colocalises with LPP at multiple locations within cells, including focal contacts, but is specifically excluded from mature focal adhesions, where LPP is still present. An LPP-PR130 fusion protein only localises to focal adhesions upon deletion of the domain of PR130 that binds to the PP2A catalytic subunit (PP2A/C), suggesting that PR130-LPP complex formation is dynamic and that permanent recruitment of PP2A activity might be unfavourable for focal adhesion maturation. Accordingly, siRNA-mediated knockdown of PR130 increases adhesion of HT1080 fibrosarcoma cells onto collagen I and decreases their migration in scratch wound and Transwell assays. Complex formation with LPP is mandatory for these PR130-PP2A functions, as neither phenotype can be rescued by re-expression of a PR130 mutant that no longer binds to LPP. Our data highlight the importance of specific, locally recruited PP2A complexes in cell adhesion and migration dynamics.
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Affiliation(s)
- Veerle Janssens
- Francis Crick Institute, Protein Phosphorylation Laboratory, 44 Lincoln's Inn Fields, London WC2A 3PX, UK Laboratory of Protein Phosphorylation and Proteomics, Dept. of Cellular and Molecular Medicine, KU Leuven, Herestraat 49 PO-box 901, Leuven B-3000, Belgium
| | - Karen Zwaenepoel
- Laboratory of Protein Phosphorylation and Proteomics, Dept. of Cellular and Molecular Medicine, KU Leuven, Herestraat 49 PO-box 901, Leuven B-3000, Belgium
| | - Carine Rossé
- Francis Crick Institute, Protein Phosphorylation Laboratory, 44 Lincoln's Inn Fields, London WC2A 3PX, UK Research Centre, Institut Curie, Paris 75005, France
| | - Marleen M R Petit
- Molecular Oncology Laboratory, Dept. of Human Genetics, KU Leuven, Herestraat 49 PO-box 602, Leuven B-3000, Belgium
| | - Jozef Goris
- Laboratory of Protein Phosphorylation and Proteomics, Dept. of Cellular and Molecular Medicine, KU Leuven, Herestraat 49 PO-box 901, Leuven B-3000, Belgium
| | - Peter J Parker
- Francis Crick Institute, Protein Phosphorylation Laboratory, 44 Lincoln's Inn Fields, London WC2A 3PX, UK Division of Cancer Studies King's College London, Guy's Hospital Campus, Thomas Street, London SE1 9RT, UK
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30
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Kang CW, Park MS, Kim NH, Lee JH, Oh CW, Kim HR, Kim GD. Hexane extract from Sargassum serratifolium inhibits the cell proliferation and metastatic ability of human glioblastoma U87MG cells. Oncol Rep 2015; 34:2602-8. [PMID: 26323587 DOI: 10.3892/or.2015.4222] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 06/29/2015] [Indexed: 11/06/2022] Open
Abstract
The present study is the first to demonstrate the anticancer effects of a hexane extract from the brown algae Sargassum serratifolium (HES) on human cancer cell lines, including glioblastoma U87MG, cervical cancer HeLa and gastric cancer MKN-28 cells, as well as liver cancer SK-HEP 1 cells. Among these cancer cell lines, U87MG cells were most sensitive to the cell death induced by HES. HES exhibited a cytotoxic effect on U87MG cells at concentrations of 14-16 µg/ml, yet an effect was not observed in human embryonic kidney HEK293 cells. The antiproliferative effects of HES were regulated by inhibition of the MAPK/ERK signaling pathway which plays a pivotal role in the proliferation of glioblastoma U87MG cells. In addition, treatment with HES led to cell morphological changes and cell cytoskeleton degradation through regulation of actin dynamic signaling. Furthermore, migration and invasion of the U87MG cells were inhibited by HES via suppression of matrix metalloproteinase (MMP)-2 and -9 expression. Thus, our results suggest that HES is a potential therapeutic agent which has anticancer effects on glioblastoma.
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Affiliation(s)
- Chang-Won Kang
- Department of Microbiology, College of Natural Science, Pukyong National University, Busan 608-737, Republic of Korea
| | - Min-Seok Park
- Department of Microbiology, College of Natural Science, Pukyong National University, Busan 608-737, Republic of Korea
| | - Nan-Hee Kim
- Department of Microbiology, College of Natural Science, Pukyong National University, Busan 608-737, Republic of Korea
| | - Ji-Hyun Lee
- Department of Microbiology, College of Natural Science, Pukyong National University, Busan 608-737, Republic of Korea
| | - Chul-Woong Oh
- Department of Marine Biology, College of Fisheries Science, Pukyong National University, Busan 608-737, Republic of Korea
| | - Hyeung-Rak Kim
- Department of Food Science and Nutrition, College of Fisheries Science, Pukyong National University, Busan 608-737, Republic of Korea
| | - Gun-Do Kim
- Department of Microbiology, College of Natural Science, Pukyong National University, Busan 608-737, Republic of Korea
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31
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Li Y, Gao A, Yu L. Monitoring of TGF-β 1-Induced Human Lung Adenocarcinoma A549 Cells Epithelial-Mesenchymal Transformation Process by Measuring Cell Adhesion Force with a Microfluidic Device. Appl Biochem Biotechnol 2015; 178:114-25. [PMID: 26394790 DOI: 10.1007/s12010-015-1862-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 09/14/2015] [Indexed: 02/03/2023]
Abstract
The epithelial-mesenchymal transition (EMT) is a process in which epithelial cells lose their cell polarity and cell-cell adhesion, and gain migratory and invasive properties. It is believed that EMT is associated with initiation and completion of the invasion-metastasis cascade. In this study, an economic approach was developed to fabricate a microfluidic device with less instrumentation requirement for the investigation of EMT by quantifying cell adhesion force. Fluid shear force was precisely controlled by a homemade microfluidic perfusion apparatus and interface. The adhesion capability of the human lung adenocarcinoma cell line A549 on different types of extracellular matrix protein was studied. In addition, effects of transforming growth factor-β (TGF-β) on EMT in A549 cells were investigated by characterizing the adhesion force changes and on-chip fluorescent staining. The results demonstrate that the microfluidic device is a potential tool to characterize the epithelial-mesenchymal transition process by measuring cell adhesion force.
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Affiliation(s)
- Yuan Li
- Central Laboratory of Yongchuan Hospital, Chongqing Medical University, Chongqing, 402160, China
| | - AnXiu Gao
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing, 400715, China.,Chongqing Engineering Research Center for Rapid Diagnosis of Dread Disease, Southwest University, Chongqing, 400715, China
| | - Ling Yu
- Institute for Clean Energy & Advanced Materials, Faculty of Materials and Energy, Southwest University, Chongqing, 400715, China. .,Chongqing Engineering Research Center for Rapid Diagnosis of Dread Disease, Southwest University, Chongqing, 400715, China.
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32
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Larsimont JC, Youssef KK, Sánchez-Danés A, Sukumaran V, Defrance M, Delatte B, Liagre M, Baatsen P, Marine JC, Lippens S, Guerin C, Del Marmol V, Vanderwinden JM, Fuks F, Blanpain C. Sox9 Controls Self-Renewal of Oncogene Targeted Cells and Links Tumor Initiation and Invasion. Cell Stem Cell 2015; 17:60-73. [PMID: 26095047 DOI: 10.1016/j.stem.2015.05.008] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 03/30/2015] [Accepted: 05/15/2015] [Indexed: 01/03/2023]
Abstract
Sox9 is a transcription factor expressed in most solid tumors. However, the molecular mechanisms underlying Sox9 function during tumorigenesis remain unclear. Here, using a genetic mouse model of basal cell carcinoma (BCC), the most frequent cancer in humans, we show that Sox9 is expressed from the earliest step of tumor formation in a Wnt/β-catenin-dependent manner. Deletion of Sox9 together with the constitutive activation of Hedgehog signaling completely prevents BCC formation and leads to a progressive loss of oncogene-expressing cells. Transcriptional profiling of oncogene-expressing cells with Sox9 deletion, combined with in vivo ChIP sequencing, uncovers a cancer-specific gene network regulated by Sox9 that promotes stemness, extracellular matrix deposition, and cytoskeleton remodeling while repressing epidermal differentiation. Our study identifies the molecular mechanisms regulated by Sox9 that link tumor initiation and invasion.
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Affiliation(s)
| | | | | | | | - Matthieu Defrance
- Laboratory of Cancer Epigenetics, Faculty of Medicine, Université Libre de Bruxelles, Brussels 1070, Belgium
| | - Benjamin Delatte
- Laboratory of Cancer Epigenetics, Faculty of Medicine, Université Libre de Bruxelles, Brussels 1070, Belgium
| | - Mélanie Liagre
- Université Libre de Bruxelles, IRIBHM, Brussels 1070, Belgium
| | - Pieter Baatsen
- EM-Facility EMoNe, VIB BIO Imaging Core, Center for Human Genetics Katholieke Universiteit Leuven, Leuven 3000, Belgium
| | - Jean-Christophe Marine
- Laboratory for Molecular Cancer Biology, Center for the Biology of Disease, VIB, Leuven 3000, Belgium
| | - Saskia Lippens
- Inflammation Research Center, Image Core Facility, VIB, Ghent 9052, Belgium; VIB Bio Imaging Core, Ghent 9052, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent 9052, Belgium
| | - Christopher Guerin
- Inflammation Research Center, Image Core Facility, VIB, Ghent 9052, Belgium; VIB Bio Imaging Core, Ghent 9052, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent 9052, Belgium
| | - Véronique Del Marmol
- Department of Dermatology, Erasme Hospital, Université Libre de Bruxelles, Brussels 1070, Belgium
| | | | - Francois Fuks
- Laboratory of Cancer Epigenetics, Faculty of Medicine, Université Libre de Bruxelles, Brussels 1070, Belgium
| | - Cédric Blanpain
- Université Libre de Bruxelles, IRIBHM, Brussels 1070, Belgium; WELBIO, Université Libre de Bruxelles, Brussels 1070, Belgium.
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Special AT-rich sequence-binding protein 2 suppresses invadopodia formation in HCT116 cells via palladin inhibition. Exp Cell Res 2015; 332:78-88. [DOI: 10.1016/j.yexcr.2014.12.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 11/28/2014] [Accepted: 12/05/2014] [Indexed: 11/18/2022]
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