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Yoon H, Suh DH, Kim K, No JH, Kim YB, Kim H. Evaluation of prognostic potential of β-catenin and L1CAM expression according to endometrial cancer risk group. Gynecol Oncol 2024; 184:132-138. [PMID: 38309030 DOI: 10.1016/j.ygyno.2024.01.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 11/29/2023] [Accepted: 01/29/2024] [Indexed: 02/05/2024]
Abstract
OBJECTIVE We investigate the prognostic role of β-catenin and L1 neuronal cell-adhesion molecule (L1CAM) according to risk groups in endometrial carcinomas (EC). METHODS A total of 335 EC patients were classified according to the Proactive Molecular Risk Classifier for Endometrial Cancer. We evaluated the expression of ß-catenin and L1CAM using immunohistochemistry, and their association with clinicopathological characteristics and survival. RESULTS The expressions of β-catenin and L1CAM were observed in 10.4% of all patients, respectively, and showed mutually exclusive pattern. While β-catenin expression was associated with endometrioid histology (p = 0.035) and low tumor grade (p = 0.045), L1CAM expression was associated with non-endometrioid histology (p < 0.001), high tumor grade (p < 0.001), lymphovascular space invasion (p = 0.006), and advanced International Federation of Gynecology and Obstetrics (FIGO) stage (p = 0.001). β-catenin expression was most frequent in the no specific molecular (NSMP) group (26/35, 74.3%), followed by the DNA polymerase-ε-mutated (POLE-mut) (6/35, 17.1%), and mismatch repair-deficiency (dMMR) (3/35, 8.6%). L1CAM expression was most frequent in the p53-abnormal group (22/35, 62.9%), followed by the NSMP (6/35, 17.1%), dMMR (4/35, 11.4%), and POLE-mut (3/35, 8.6%). Although both markers did not show statistical significance in multivariate analysis for both progression-free survival (PFS) and overall survival in entire cohort, β-catenin positivity was identified as the sole factor associated with worse PFS in the high-intermediate risk subgroup (p = 0.001). CONCLUSION The expression of nuclear β-catenin may serve as a potential biomarker for predicting recurrence and guiding therapeutic strategies in high-intermediate risk EC patients.
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Affiliation(s)
- Heesoo Yoon
- Department of Pathology, Seoul National University Bundang Hospital, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea; Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Dong Hoon Suh
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Kidong Kim
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Jae Hong No
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Yong Beom Kim
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea
| | - Hyojin Kim
- Department of Pathology, Seoul National University Bundang Hospital, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea; Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea.
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2
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Trepanowski N, Yim RM, Wetstone R, MacDonald E, Servattalab S, Jacob-George S, Harris JE. Vitiligo progression in a patient undergoing romosozumab treatment for osteoporosis. JAAD Case Rep 2023; 42:26-30. [PMID: 37965188 PMCID: PMC10641553 DOI: 10.1016/j.jdcr.2023.09.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023] Open
Affiliation(s)
- Nicole Trepanowski
- Boston University School of Medicine, Boston, Massachusetts
- Department of Dermatology, University of Massachusetts Chan Medical School, Worcester, Massachusetts
| | - Rebecca M. Yim
- Department of Dermatology, University of Massachusetts Chan Medical School, Worcester, Massachusetts
- Tulane University School of Medicine, Tulane, Louisiana
| | - Rachel Wetstone
- Department of Dermatology, University of Massachusetts Chan Medical School, Worcester, Massachusetts
- Florida International University College of Medicine, Herbert Wertheim College of Medicine, Miami, Florida
| | - Elizabeth MacDonald
- Department of Dermatology, University of Massachusetts Chan Medical School, Worcester, Massachusetts
| | - Sarah Servattalab
- Department of Dermatology, University of Massachusetts Chan Medical School, Worcester, Massachusetts
| | - Subin Jacob-George
- Department of Dermatology, University of Massachusetts Chan Medical School, Worcester, Massachusetts
| | - John E. Harris
- Department of Dermatology, University of Massachusetts Chan Medical School, Worcester, Massachusetts
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3
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Cárdenas-García SP, Ijaz S, Pereda AE. The components of an electrical synapse as revealed by expansion microscopy of a single synaptic contact. bioRxiv 2023:2023.07.25.550347. [PMID: 37546897 PMCID: PMC10402082 DOI: 10.1101/2023.07.25.550347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
Most nervous systems combine both transmitter-mediated and direct cell-cell communication, known as 'chemical' and 'electrical' synapses, respectively. Chemical synapses can be identified by their multiple structural components. Electrical synapses are, on the other hand, generally defined by the presence of a 'gap junction' (a cluster of intercellular channels) between two neuronal processes. However, while gap junctions provide the communicating mechanism, it is unknown whether electrical transmission requires the contribution of additional cellular structures. We investigated this question at identifiable single synaptic contacts on the zebrafish Mauthner cells, at which gap junctions coexist with specializations for neurotransmitter release and where the contact defines the anatomical limits of a synapse. Expansion microscopy of these contacts revealed a detailed map of the incidence and spatial distribution of proteins pertaining to various synaptic structures. Multiple gap junctions of variable size were identified by the presence of their molecular components. Remarkably, most of the synaptic contact's surface was occupied by interleaving gap junctions and components of adherens junctions, suggesting a close functional association between these two structures. In contrast, glutamate receptors were confined to small peripheral portions of the contact, indicating that most of the synaptic area works as an electrical synapse. Thus, our results revealed the overarching organization of an electrical synapse that operates with not one, but multiple gap junctions, in close association with structural and signaling molecules known to be components of AJs. The relationship between these intercellular structures will aid in establishing the boundaries of electrical synapses found throughout animal connectomes and provide insight into the structural organization and functional diversity of electrical synapses.
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Affiliation(s)
- Sandra P. Cárdenas-García
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Sundas Ijaz
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Alberto E. Pereda
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY 10461, USA
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4
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Goto T, Shibuya H. maea affects head formation through ß-catenin degradation during early Xenopus laevis development. Dev Growth Differ 2023; 65:29-36. [PMID: 36444483 DOI: 10.1111/dgd.12828] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 10/26/2022] [Accepted: 11/16/2022] [Indexed: 12/03/2022]
Abstract
Canonical Wnt signalling plays important roles in early embryogenesis, such as axis formation due to its activation and head formation due to its inhibition. ß-catenin protein stability is a key factor in canonical Wnt signalling. Several E3 ubiquitin ligases contribute to ß-catenin degradation through the ubiquitin/proteasome system. We characterised an E3 ubiquitin ligase gene, Xenopus laevis macrophage erythroblast attacher (maea), during early development. maea transcripts were ubiquitously detected in early embryos. The expression levels of the Wnt target genes nodal homolog 3, gene 1 (nodal3.1), and siamois homeodomain 1 (sia1), which were induced by injection with ß-catenin mRNA, were reduced by maea.S mRNA co-injection. maea.S overexpression at the anterior dorsal region enlarged head structures, whereas Maea knockdown interfered with head formation in Xenopus embryos. Maea.S decreased and ubiquitinated ß-catenin protein. ß-catenin-4KRs protein, which mutated the four lysine (K) residues known as ubiquitinated sites to arginine (R) residues, was also ubiquitinated and degraded by Maea.S. These findings suggest that Maea contributes to β-catenin degradation by ubiquitination of unknown lysine residues in early Xenopus development.
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Affiliation(s)
- Toshiyasu Goto
- Department of Molecular Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hiroshi Shibuya
- Department of Molecular Cell Biology, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan
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5
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Weisman P, Park K, Xu J. FIGO Grade 3 Endometrioid Adenocarcinomas With Diffusely Aberrant β-Catenin Expression: An Aggressive Subset Resembling Cutaneous Pilomatrix Carcinomas. Int J Gynecol Pathol 2022; 41:126-131. [PMID: 33811207 PMCID: PMC8484367 DOI: 10.1097/pgp.0000000000000775] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Uterine endometrioid adenocarcinomas are known for their morphologic plasticity. In addition to a multiplicity of metaplasias, uterine endometrioid adenocarcinomas may also undergo high-grade divergent differentiation in the form of high-grade neuroendocrine carcinoma, neuroectodermal differentiation or carcinosarcoma; others may dedifferentiate completely. Here we describe 5 cases of uterine endometrioid adenocarcinomas with high-grade divergent differentiation showing a striking morphologic and immunophenotypic resemblance to cutaneous pilomatrix carcinoma. Specifically, the high-grade component in all cases exhibited solid, basaloid morphology with conspicuous tumor cell necrosis and the presence of shadow cells, accompanied by diffusely aberrant (nuclear and cytoplasmic) β-catenin expression as well as variably diffuse CDX2 expression. In addition, the high-grade component in all cases showed loss of ER and PAX8 expression, retained MMR expression, wild-type p53 expression, patchy p16 expression, and diffusely positive cytokeratin expression (AE1/AE3 and CK7); at least focal neuroendocrine marker expression was present in all cases. CK20 was negative in all cases, with the exception of very focal staining in a single case (2% of tumor cells). All 5 of our tumors had at least a focal conventional FIGO grade 1 component. In all 4 cases tested, the low-grade component retained both PAX8 and ER expression and had, at best, focally aberrant β-catenin expression. Two of our cases had molecular analysis performed and both harbored mutations in exon 3 of CTNNB1 as expected; molecular analysis also revealed that both cases lacked POLE or TP53 mutations and showed no microsatellite instability. The tumors in this series were uniformly aggressive. Four of the 5 patients in our cohort had available follow-up information; of these, 3/4 died of their disease within 14 mo of diagnosis and the fourth patient had distant metastatic disease at presentation and is alive with disease 1 mo following diagnosis. The 1 patient without follow-up information also had distant metastatic disease at presentation and was lost to follow-up 17 mo later. The cases described in this series (1) represent a highly aggressive CTNNB1-mutated subset of the "no specific molecular profile" category of endometrioid adenocarcinomas; (2) illustrate a form of high-grade divergent differentiation resembling cutaneous pilomatrix carcinoma already described in carcinomas at other anatomic sites; and (3) underscore the difficulty in recognizing this phenotype at distant metastatic sites, which are frequent even at the time of presentation, given the consistent loss of ER and PAX8 expression and concurrent CDX2 expression.
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Affiliation(s)
- Paul Weisman
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Kay Park
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Jin Xu
- Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI
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6
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Krug S, Mattheis L, Haemmerle M, Rosendahl J, Kleeff J, Michl P. The impact of atezolizumab and bevacizumab in hepatocellular carcinoma with activated ß-catenin signaling. Cancer Rep (Hoboken) 2021; 5:e1493. [PMID: 34309225 PMCID: PMC8955077 DOI: 10.1002/cnr2.1493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/15/2021] [Accepted: 06/22/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND To date, no biomarkers exist to predict response or resistance to immunotherapy in hepatocellular carcinoma (HCC). Recent approaches to classify HCC into different immunological states revealed a negative correlation between Wnt/ß-catenin activation and immunogenicity and T-cell infiltration. If these "cold" tumors with primary resistance to checkpoint inhibition (CPI) may benefit from dual treatment of CPI and anti-angiogenic therapy has not been proved. CASE Here, we describe the case of a male patient with metastatic HCC. After failure of standard of care treatment with lenvatinib, sorafenib and ramucirumab fourth-line systemic therapy with atezolizumab and bevacizumab were applied leading to a phenomenal response. Immunohistochemical evaluations were compatible with Wnt/ß-catenin pathway activation and accompanying low T-cell infiltration as well as low PD-L1 score. CONCLUSION Patients with Wnt/ß-catenin activation may benefit from combination therapy with atezolizumab and bevacizumab regardless of potential predictive markers for immune checkpoint inhibition.
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Affiliation(s)
- Sebastian Krug
- Department of Internal Medicine I, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Laura Mattheis
- Department of Internal Medicine I, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Monika Haemmerle
- Institute of Pathology, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Jonas Rosendahl
- Department of Internal Medicine I, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Joerg Kleeff
- Department of Visceral, Vascular and Endocrine Surgery, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Patrick Michl
- Department of Internal Medicine I, Martin-Luther University Halle-Wittenberg, Halle (Saale), Germany
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7
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Talaverón R, Matarredona ER, Herrera A, Medina JM, Tabernero A. Connexin43 Region 266-283, via Src Inhibition, Reduces Neural Progenitor Cell Proliferation Promoted by EGF and FGF-2 and Increases Astrocytic Differentiation. Int J Mol Sci 2020; 21:ijms21228852. [PMID: 33238452 PMCID: PMC7700635 DOI: 10.3390/ijms21228852] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 11/20/2020] [Accepted: 11/20/2020] [Indexed: 12/13/2022] Open
Abstract
Neural progenitor cells (NPCs) are self-renewing cells that give rise to the major cells in the nervous system and are considered to be the possible cell of origin of glioblastoma. The gap junction protein connexin43 (Cx43) is expressed by NPCs, exerting channel-dependent and -independent roles. We focused on one property of Cx43—its ability to inhibit Src, a key protein in brain development and oncogenesis. Because Src inhibition is carried out by the sequence 266–283 of the intracellular C terminus in Cx43, we used a cell-penetrating peptide containing this sequence, TAT-Cx43266–283, to explore its effects on postnatal subventricular zone NPCs. Our results show that TAT-Cx43266–283 inhibited Src activity and reduced NPC proliferation and survival promoted by epidermal growth factor (EGF) and fibroblast growth factor-2 (FGF-2). In differentiation conditions, TAT-Cx43266–283 increased astrocyte differentiation at the expense of neuronal differentiation, which coincided with a reduction in Src activity and β-catenin expression. We propose that Cx43, through the region 266–283, reduces Src activity, leading to disruption of EGF and FGF-2 signaling and to down-regulation of β-catenin with effects on proliferation and differentiation. Our data indicate that the inhibition of Src might contribute to the complex role of Cx43 in NPCs and open new opportunities for further research in gliomagenesis.
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Affiliation(s)
- Rocío Talaverón
- Instituto de Neurociencias de Castilla y León (INCYL), Universidad de Salamanca, 37007 Salamanca, Spain; (R.T.); (J.M.M.)
| | | | - Alejandro Herrera
- Departamento de Fisiología, Universidad de Sevilla, 41012 Sevilla, Spain; (E.R.M.); (A.H.)
| | - José M. Medina
- Instituto de Neurociencias de Castilla y León (INCYL), Universidad de Salamanca, 37007 Salamanca, Spain; (R.T.); (J.M.M.)
| | - Arantxa Tabernero
- Instituto de Neurociencias de Castilla y León (INCYL), Universidad de Salamanca, 37007 Salamanca, Spain; (R.T.); (J.M.M.)
- Correspondence: ; Tel.: +34-923-29-45-00 (ext. 5311)
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8
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Nagy N, Reis H, Hadaschik B, Niedworok C, Módos O, Szendrői A, Bíró K, Hager T, Herold T, Ablat J, Black PC, Okon K, Tolkach Y, Csizmarik A, Oláh C, Keresztes D, Bremmer F, Gaisa NT, Kriegsmann J, Kovalszky I, Kiss A, Tímár J, Szász MA, Rink M, Fisch M, Nyirády P, Szarvas T. Prevalence of APC and PTEN Alterations in Urachal Cancer. Pathol Oncol Res 2020; 26:2773-2781. [PMID: 32754865 PMCID: PMC7471184 DOI: 10.1007/s12253-020-00872-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 07/07/2020] [Indexed: 02/07/2023]
Abstract
Urachal carcinoma (UrC) is a rare tumor with remarkable histological and molecular similarities to colorectal cancer (CRC). Adenomatous polyposis coli (APC) is the most frequently affected gene in CRC, but the prevalence and significance of its alterations in UrC is poorly understood. In addition, loss of phosphatase and tensin homologue (PTEN) was shown to be associated with therapy resistance in CRC. Our primary aim was to assess specific genetic alterations including APC and PTEN in a large series of UrC samples in order to identify clinically significant genomic alterations. We analyzed a total of 40 UrC cases. Targeted 5-gene (APC, PTEN, DICER1, PRKAR1A, TSHR, WRN) panel sequencing was performed on the Illumina MiSeq platform (n = 34). In addition, ß-catenin (n = 38) and PTEN (n = 30) expressions were assessed by immunohistochemistry. APC and PTEN genes were affected in 15% (5/34) and 6% (2/34) of cases. Two of five APC alterations (p.Y1075*, p.K1199*) were truncating pathogenic mutations. One of the two PTEN variants was a pathogenic frameshift insertion (p.C211fs). In 29% (11/38) of samples, at least some weak nuclear ß-catenin immunostaining was detected and PTEN loss was observed in 20% (6/30) of samples. The low prevalence of APC mutations in UrC represents a characteristic difference to CRC. Based on APC and ß-catenin results, the Wnt pathway seems to be rarely affected in UrC. Considering the formerly described involvement of PTEN protein loss in anti-EGFR therapy-resistance its immunohistochemical testing may have therapeutic relevance.
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Affiliation(s)
- Nikolett Nagy
- Department of Urology, Semmelweis University, Budapest, 1082, Hungary
| | - Henning Reis
- Institute of Pathology, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, 45147, Essen, Germany
| | - Boris Hadaschik
- Department of Urology, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, 45147, Essen, Germany
| | - Christian Niedworok
- Department of Urology, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, 45147, Essen, Germany
| | - Orsolya Módos
- Department of Urology, Semmelweis University, Budapest, 1082, Hungary
| | - Attila Szendrői
- Department of Urology, Semmelweis University, Budapest, 1082, Hungary
| | | | - Thomas Hager
- Institute of Pathology, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, 45147, Essen, Germany
| | - Thomas Herold
- Institute of Pathology, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, 45147, Essen, Germany
| | - Jason Ablat
- Vancouver Prostate Centre, University of British Columbia, Vancouver, V6H 3Z6, Canada
| | - Peter C Black
- Vancouver Prostate Centre, University of British Columbia, Vancouver, V6H 3Z6, Canada
| | - Krzysztof Okon
- Department of Pathomorphology, Jagiellonian University, 30252, Cracow, Poland
| | - Yuri Tolkach
- Institute of Pathology, University of Bonn, 53113, Bonn, Germany
| | - Anita Csizmarik
- Department of Urology, Semmelweis University, Budapest, 1082, Hungary
| | - Csilla Oláh
- Department of Urology, Semmelweis University, Budapest, 1082, Hungary
| | - David Keresztes
- Department of Urology, Semmelweis University, Budapest, 1082, Hungary
| | - Felix Bremmer
- Institute of Pathology, University of Göttingen, 37073, Göttingen, Germany
| | - Nadine T Gaisa
- Institute of Pathology, RWTH Aachen University, 52074, Aachen, Germany
| | - Joerg Kriegsmann
- Cytology and Molecular Diagnostics Trier, Center for Histology, 54296, Trier, Germany
| | - Ilona Kovalszky
- 1st Institute of Pathology and Expreimental Cancer Research, Semmelweis University, Budapest, 1085, Hungary
| | - András Kiss
- 2nd Department of Pathology, Semmelweis University, Budapest, 1091, Hungary
| | - József Tímár
- 2nd Department of Pathology, Semmelweis University, Budapest, 1091, Hungary
| | - Marcell A Szász
- Cancer Center, Semmelweis University, Budapest, 1083, Hungary
| | - Michael Rink
- Department of Urology, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Margit Fisch
- Department of Urology, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Péter Nyirády
- Department of Urology, Semmelweis University, Budapest, 1082, Hungary
| | - Tibor Szarvas
- Department of Urology, Semmelweis University, Budapest, 1082, Hungary.
- Department of Urology, West German Cancer Center, University of Duisburg-Essen, University Hospital Essen, 45147, Essen, Germany.
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9
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Saadalla A, Lima MM, Tsai F, Osman A, Singh MP, Linden DR, Dennis KL, Haeryfar SMM, Gurish MF, Gounari F, Khazaie K. Cell Intrinsic Deregulated ß-Catenin Signaling Promotes Expansion of Bone Marrow Derived Connective Tissue Type Mast Cells, Systemic Inflammation, and Colon Cancer. Front Immunol 2019; 10:2777. [PMID: 31849960 PMCID: PMC6902090 DOI: 10.3389/fimmu.2019.02777] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 11/13/2019] [Indexed: 01/09/2023] Open
Abstract
Mast cells constitutively express ß-catenin and expand in solid tumors such as colon and skin cancer. However, the role of ß-catenin signaling in mast cells and the cause or effect of mast cell expansion and tumor growth has yet to be established. In earlier studies we used mast cell depletion and protease staining approaches, to provide evidence for a causative role of mast cells in small bowel polyposis, and related specific phenotypes and distributions of tumor infiltrating mast cells to stages of tumor growth. Here we report that, stabilization of ß-catenin expands mast cells to promote high incidence of colon polyposis and infrequent small bowel polyps and skin cancer. Expression of a dominant acting ß-catenin in mast cells (5CreCAT) stimulated maturation and expression of granule stored proteases. Both mucosal and connective tissue type mast cells accumulated in colonic small bowel polyps independent of gender, and mice developed chronic systemic inflammation with splenomegaly. Reconstitution of polyposis-prone mice with bone marrow from 5CreCAT mice resulted in focal expansion of connective tissue like mast cells, which are normally rare in benign polyps and characteristically expand during adenoma-to-carcinoma transition. Our findings highlight a hitherto unknown contribution of ß-catenin signaling in mast cells to their maturation and to increased risk of colon cancer.
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Affiliation(s)
| | | | - Funien Tsai
- Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Abu Osman
- Department of Immunology, Mayo Clinic, Rochester, MN, United States
| | | | - David R. Linden
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, United States
| | - Kristen L. Dennis
- Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - S. M. Mansour Haeryfar
- Department of Microbiology and Immunology, Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
| | - Michael F. Gurish
- Division of Rheumatology, Immunology and Allergy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, United States
| | - Fotini Gounari
- Section of Rheumatology, Department of Medicine, Knapp Center for Lupus Research, University of Chicago, Chicago, IL, United States
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10
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Timbergen MJM, Smits R, Grünhagen DJ, Verhoef C, Sleijfer S, Wiemer EAC. Activated Signaling Pathways and Targeted Therapies in Desmoid-Type Fibromatosis: A Literature Review. Front Oncol 2019; 9:397. [PMID: 31165043 PMCID: PMC6534064 DOI: 10.3389/fonc.2019.00397] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 04/26/2019] [Indexed: 12/17/2022] Open
Abstract
Desmoid-type fibromatosis (DTF) is a rare, soft tissue tumor of mesenchymal origin which is characterized by local infiltrative growth behavior. Besides “wait and see,” surgery and radiotherapy, several systemic treatments are available for symptomatic patients. Recently, targeted therapies are being explored in DTF. Unfortunately, effective treatment is still hampered by the limited knowledge of the molecular mechanisms that prompt DTF tumorigenesis. Many studies focus on Wnt/β-catenin signaling, since the vast majority of DTF tumors harbor a mutation in the CTNNB1 gene or the APC gene. The established role of the Wnt/β-catenin pathway in DTF forms an attractive therapeutic target, however, drugs targeting this pathway are still in an experimental stage and not yet available in the clinic. Only few studies address other signaling pathways which can drive uncontrolled growth in DTF such as: JAK/STAT, Notch, PI3 kinase/AKT, mTOR, Hedgehog, and the estrogen growth regulatory pathways. Evidence for involvement of these pathways in DTF tumorigenesis is limited and predominantly based on the expression levels of key pathway genes, or on observed clinical responses after targeted treatment. No clear driver role for these pathways in DTF has been identified, and a rationale for clinical studies is often lacking. In this review, we highlight common signaling pathways active in DTF and provide an up-to-date overview of their therapeutic potential.
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Affiliation(s)
- Milea J M Timbergen
- Department of Surgical Oncology, Erasmus MC-University Medical Center, Rotterdam, Netherlands.,Department of Medical Oncology, Erasmus MC-University Medical Center, Rotterdam, Netherlands
| | - Ron Smits
- Department of Gastroenterology and Hepatology, Erasmus MC-University Medical Center, Rotterdam, Netherlands
| | - Dirk J Grünhagen
- Department of Surgical Oncology, Erasmus MC-University Medical Center, Rotterdam, Netherlands
| | - Cornelis Verhoef
- Department of Surgical Oncology, Erasmus MC-University Medical Center, Rotterdam, Netherlands
| | - Stefan Sleijfer
- Department of Medical Oncology, Erasmus MC-University Medical Center, Rotterdam, Netherlands
| | - Erik A C Wiemer
- Department of Medical Oncology, Erasmus MC-University Medical Center, Rotterdam, Netherlands
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11
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Jones MR, Dilai S, Lingampally A, Chao CM, Danopoulos S, Carraro G, Mukhametshina R, Wilhelm J, Baumgart-Vogt E, Al Alam D, Chen C, Minoo P, Zhang JS, Bellusci S. A Comprehensive Analysis of Fibroblast Growth Factor Receptor 2b Signaling on Epithelial Tip Progenitor Cells During Early Mouse Lung Branching Morphogenesis. Front Genet 2019; 9:746. [PMID: 30728831 PMCID: PMC6351499 DOI: 10.3389/fgene.2018.00746] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 12/27/2018] [Indexed: 01/10/2023] Open
Abstract
This study demonstrates that FGF10/FGFR2b signaling on distal epithelial progenitor cells, via ß-catenin/EP300, controls, through a comprehensive set of developmental genes, morphogenesis, and differentiation. Fibroblast growth factor (FGF) 10 signaling through FGF receptor 2b (FGFR2b) is mandatory during early lung development as the deletion of either the ligand or the receptor leads to lung agenesis. However, this drastic phenotype previously hampered characterization of the primary biological activities, immediate downstream targets and mechanisms of action. Through the use of a dominant negative transgenic mouse model (Rosa26rtTA; tet(o)sFgfr2b), we conditionally inhibited FGF10 signaling in vivo in E12.5 embryonic lungs via doxycycline IP injection to pregnant females, and in vitro by culturing control and experimental lungs with doxycycline. The impact on branching morphogenesis 9 h after doxycycline administration was analyzed by morphometry, fluorescence and electron microscopy. Gene arrays at 6 and 9 h following doxycycline administration were carried out. The relationship between FGF10 and ß-catenin signaling was also analyzed through in vitro experiments using IQ1, a pharmacological inhibitor of ß-catenin/EP300 transcriptional activity. Loss of FGF10 signaling did not impact proliferation or survival, but affected both adherens junctions (up-regulation of E-cadherin), and basement membrane organization (increased laminin). Gene arrays identified multiple direct targets of FGF10, including main transcription factors. Immunofluorescence showed a down-regulation of the distal epithelial marker SOX9 and mis-expression distally of the proximal marker SOX2. Staining for the transcriptionally-active form of ß-catenin showed a reduction in experimental vs. control lungs. In vitro experiments using IQ1 phenocopied the impacts of blocking FGF10. This study demonstrates that FGF10/FGFR2b signaling on distal epithelial progenitor cells via ß-catenin/EP300 controls, through a comprehensive set of developmental genes, cell adhesion, and differentiation.
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Affiliation(s)
- Matthew R Jones
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.,Department of Internal Medicine II, Member of the German Lung Center, Excellence Cluster Cardio-Pulmonary Systems, University of Giessen Lung Center, Giessen, Germany
| | - Salma Dilai
- Department of Internal Medicine II, Member of the German Lung Center, Excellence Cluster Cardio-Pulmonary Systems, University of Giessen Lung Center, Giessen, Germany
| | - Arun Lingampally
- Department of Internal Medicine II, Member of the German Lung Center, Excellence Cluster Cardio-Pulmonary Systems, University of Giessen Lung Center, Giessen, Germany
| | - Cho-Ming Chao
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.,Department of Internal Medicine II, Member of the German Lung Center, Excellence Cluster Cardio-Pulmonary Systems, University of Giessen Lung Center, Giessen, Germany
| | - Soula Danopoulos
- Developmental Biology and Regenerative Medicine Program, Saban Research Institute of Children's Hospital Los Angeles and University of Southern California, Los Angeles, CA, United States
| | - Gianni Carraro
- Department of Medicine, Cedars-Sinai Medical Center, Lung and Regenerative Medicine Institutes, Los Angeles, CA, United States
| | - Regina Mukhametshina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Jochen Wilhelm
- Department of Internal Medicine II, Member of the German Lung Center, Excellence Cluster Cardio-Pulmonary Systems, University of Giessen Lung Center, Giessen, Germany
| | - Eveline Baumgart-Vogt
- Department of Internal Medicine II, Member of the German Lung Center, Excellence Cluster Cardio-Pulmonary Systems, University of Giessen Lung Center, Giessen, Germany
| | - Denise Al Alam
- Developmental Biology and Regenerative Medicine Program, Saban Research Institute of Children's Hospital Los Angeles and University of Southern California, Los Angeles, CA, United States
| | - Chengshui Chen
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Parviz Minoo
- Division of Newborn Medicine, Department of Pediatrics, Children's Hospital Los Angeles, University of Southern California, Los Angeles, CA, United States
| | - Jin San Zhang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.,Institute of Life Sciences, Wenzhou University, Zhejiang, China.,International Collaborative Research Center on Growth Factors, Wenzhou Medical University, Zhejiang, China
| | - Saverio Bellusci
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China.,Department of Internal Medicine II, Member of the German Lung Center, Excellence Cluster Cardio-Pulmonary Systems, University of Giessen Lung Center, Giessen, Germany.,Developmental Biology and Regenerative Medicine Program, Saban Research Institute of Children's Hospital Los Angeles and University of Southern California, Los Angeles, CA, United States.,Institute of Life Sciences, Wenzhou University, Zhejiang, China.,International Collaborative Research Center on Growth Factors, Wenzhou Medical University, Zhejiang, China
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12
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Huang J, Frid M, Gewitz MH, Fallon JT, Brown D, Krafsur G, Stenmark K, Mathew R. Hypoxia-induced pulmonary hypertension and chronic lung disease: caveolin-1 dysfunction an important underlying feature. Pulm Circ 2019; 9:2045894019837876. [PMID: 30806156 PMCID: PMC6434444 DOI: 10.1177/2045894019837876] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 02/22/2019] [Indexed: 12/30/2022] Open
Abstract
Caveolin-1 (cav-1) has been shown to play a significant role in the pathogenesis of pulmonary hypertension (PH). In the monocrotaline model of PH, the loss of endothelial cav-1 as well as reciprocal activation of proliferative and anti-apoptotic pathways initiate the disease process and facilitate its progression. In order to examine the role of cav-1 in hypoxia-induced PH, we exposed rats and neonatal calves to hypobaric hypoxia and obtained hemodynamic data and assessed the expression of cav-1 and related proteins eNOS, HSP90, PTEN, gp130, PY-STAT3, β-catenin, and Glut1 in the lung tissue. Chronic hypoxic exposure in rats (48 h-4 weeks) and calves (two weeks) did not alter the expression of cav-1, HSP90, or eNOS. PTEN expression was significantly decreased accompanied by PY-STAT3 activation and increased expression of gp130, Glut1, and β-catenin in hypoxic animals. We also examined cav-1 expression in the lung sections from steers with chronic hypoxic disease (Brisket disease) and from patients with chronic lung disease who underwent lung biopsy for medical reasons. There was no cav-1 loss in Brisket disease. In chronic lung disease cases, endothelial cav-1 expression was present, albeit with less intense staining in some cases. In conclusion, hypoxia did not alter the cav-1 expression in experimental models. The presence of cav-1, however, did not suppress hypoxia-induced activation of PY-STAT3 and β catenin, increased gp130 and Glut1 expression, or prevent the PTEN loss, indicating cav-1 dysfunction in hypoxia-induced PH.
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Affiliation(s)
- Jing Huang
- Department of Pediatrics, Maria Fareri Children’s Hospital at Westchester Medical Center, New York Medical College, Valhalla, NY, USA
| | - Maria Frid
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Michael H. Gewitz
- Department of Pediatrics, Maria Fareri Children’s Hospital at Westchester Medical Center, New York Medical College, Valhalla, NY, USA
| | - John T. Fallon
- Department of Pathology, New York Medical College, Valhalla, NY, USA
| | - Dale Brown
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Greta Krafsur
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Kurt Stenmark
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Rajamma Mathew
- Department of Pediatrics, Maria Fareri Children’s Hospital at Westchester Medical Center, New York Medical College, Valhalla, NY, USA
- Department of Physiology, New York Medical College, Valhalla, NY, USA
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13
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Alonso-Martin S, Auradé F, Mademtzoglou D, Rochat A, Zammit PS, Relaix F. SOXF factors regulate murine satellite cell self-renewal and function through inhibition of β-catenin activity. eLife 2018; 7:26039. [PMID: 29882512 PMCID: PMC6021169 DOI: 10.7554/elife.26039] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 06/07/2018] [Indexed: 12/17/2022] Open
Abstract
Muscle satellite cells are the primary source of stem cells for postnatal skeletal muscle growth and regeneration. Understanding genetic control of satellite cell formation, maintenance, and acquisition of their stem cell properties is on-going, and we have identified SOXF (SOX7, SOX17, SOX18) transcriptional factors as being induced during satellite cell specification. We demonstrate that SOXF factors regulate satellite cell quiescence, self-renewal and differentiation. Moreover, ablation of Sox17 in the muscle lineage impairs postnatal muscle growth and regeneration. We further determine that activities of SOX7, SOX17 and SOX18 overlap during muscle regeneration, with SOXF transcriptional activity requisite. Finally, we show that SOXF factors also control satellite cell expansion and renewal by directly inhibiting the output of β-catenin activity, including inhibition of Ccnd1 and Axin2. Together, our findings identify a key regulatory function of SoxF genes in muscle stem cells via direct transcriptional control and interaction with canonical Wnt/β-catenin signaling.
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Affiliation(s)
- Sonia Alonso-Martin
- Institut Mondor de Recherche Biomédicale, INSERM U955-E10, Créteil, France.,Université Paris Est, Faculté de Medecine, Créteil, France.,Ecole Nationale Veterinaire d'Alfort, Maison Alfort, France
| | - Frédéric Auradé
- Sorbonne Université, INSERM U974, Center for Research in Myology, Paris, France
| | - Despoina Mademtzoglou
- Institut Mondor de Recherche Biomédicale, INSERM U955-E10, Créteil, France.,Université Paris Est, Faculté de Medecine, Créteil, France.,Ecole Nationale Veterinaire d'Alfort, Maison Alfort, France
| | - Anne Rochat
- Sorbonne Université, INSERM U974, Center for Research in Myology, Paris, France
| | - Peter S Zammit
- Randall Centre for Cell and Molecular Biophysics, King's College London, London, United Kingdom
| | - Frédéric Relaix
- Institut Mondor de Recherche Biomédicale, INSERM U955-E10, Créteil, France.,Université Paris Est, Faculté de Medecine, Créteil, France.,Ecole Nationale Veterinaire d'Alfort, Maison Alfort, France.,Etablissement Français du Sang, Creteil, France.,APHP, Hopitaux UniversitairesHenri Mondor, Centre de Référence des Maladies Neuromusculaires GNMH, Créteil, France
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14
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Talla SB, Brembeck FH. The role of Pygo2 for Wnt/ ß-catenin signaling activity during intestinal tumor initiation and progression. Oncotarget 2016; 7:80612-32. [PMID: 27811361 DOI: 10.18632/oncotarget.13016] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 10/21/2016] [Indexed: 12/16/2022] Open
Abstract
Pygo2 acts as a co-activator of Wnt signaling in a nuclear complex with ß-catenin/BCL9/BCL9-2 to increase target gene transcription. Previous studies showed that Pygo2 is upregulated in murine intestinal tumors and human colon cancer, but is apparently dispensable for normal intestinal homeostasis. Here, we have evaluated the in vivo role of Pygo2 during intestinal tumorigenesis using Pygo2 deficient mice. We analyzed chemically induced colon tumor development and conditional intestine specific mouse models harboring either Apc loss-of-function (LOF) or Ctnnb1 gain-of-function (ß-catenin GOF). Remarkably, the number and size of chemically induced tumors was significantly reduced in Pygo2 deficient mice, suggesting that Pygo2 has a tumor promoting function. Furthermore, loss of Pygo2 rescued early tumorigenesis of Ctnnb1 GOF mutants. In contrast, Pygo2 ablation was not sufficient to prevent tumor development of Apc LOF mice. The effect on tumor formation by Pygo2 knockout was linked to the repression of specific deregulated Wnt target genes, in particular of c-Myc. Moreover, the role of Pygo2 appears to be associated with the signaling output of deregulated Wnt signaling in the different tumor models. Thus, targeting Pygo2 might provide a novel strategy to suppress tumor formation in a context dependent manner.
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15
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Mancini M, Soverini S, Gugliotta G, Santucci MA, Rosti G, Cavo M, Martinelli G, Castagnetti F. Chibby 1: a new component of β-catenin-signaling in chronic myeloid leukemia. Oncotarget 2017; 8:88244-88250. [PMID: 29152155 PMCID: PMC5675707 DOI: 10.18632/oncotarget.21166] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 08/04/2017] [Indexed: 12/13/2022] Open
Abstract
Chibby 1 (CBY1) is a small and evolutionarily conserved protein, which act as β-catenin antagonist. CBY1 is encoded by C22orf2 (22q13.1) Its antagonistic function on β-catenin involves the direct interaction with: The C-terminal activation domain of β-catenin, which hinders β-catenin binding with Tcf/Lef transcription factors hence repressing β-catenin transcriptional activation. 14-3-3 scaffolding proteins (σ or ξ), which drive CBY1 nuclear export into a stable tripartite complex with β-catenin. The relative proximity of C22orf2 gene encoding for CBY1 to the BCR breakpoint on chromosome 22q11, whose translocation and rearrangement with the c-ABL is the causative event of chronic myeloid leukemia (CML), suggested that gene haploinsufficiency may play a role in the disease pathogenesis and progression. We found CBY1 down-modulation associated with the BCR-ABL1, promoted by transcriptional mechanisms (promoter hyper-methylation) and post-transcriptional events, addressing the protein towards proteasome-dependent degradation through SUMOylation. CBY1 reduced expression in clonal progenitors and, more importantly, in leukemic stem cells (LSC), is contingent upon the tyrosine kinase (TK) activity of BCR-ABL1 fusion protein. Accordingly, its induction by Imatinib (IM) and second generation TK inhibitors contributes to β-catenin inactivation through multiple events encompassing the activation of endoplasmic reticulum (ER) stress-associated unfolded protein response (UPR) and autophagy, eventually leading to apoptotic death. These findings support the advantage of combined regimens including drugs targeting DNA epigenetics and/or proteasome to eradicate the BCR-ABL1+ hematopoiesis.
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Affiliation(s)
- Manuela Mancini
- Department of Experimental Diagnostic and Specialty Medicine, DIMES-Institute of Hematology "L. and A. Seràgnoli", University of Bologna Medical School, Bologna, Italy
| | - Simona Soverini
- Department of Experimental Diagnostic and Specialty Medicine, DIMES-Institute of Hematology "L. and A. Seràgnoli", University of Bologna Medical School, Bologna, Italy
| | - Gabriele Gugliotta
- Department of Experimental Diagnostic and Specialty Medicine, DIMES-Institute of Hematology "L. and A. Seràgnoli", University of Bologna Medical School, Bologna, Italy
| | - Maria Alessandra Santucci
- Department of Experimental Diagnostic and Specialty Medicine, DIMES-Institute of Hematology "L. and A. Seràgnoli", University of Bologna Medical School, Bologna, Italy
| | - Gianantonio Rosti
- Department of Experimental Diagnostic and Specialty Medicine, DIMES-Institute of Hematology "L. and A. Seràgnoli", University of Bologna Medical School, Bologna, Italy
| | - Michele Cavo
- Department of Experimental Diagnostic and Specialty Medicine, DIMES-Institute of Hematology "L. and A. Seràgnoli", University of Bologna Medical School, Bologna, Italy
| | - Giovanni Martinelli
- Department of Experimental Diagnostic and Specialty Medicine, DIMES-Institute of Hematology "L. and A. Seràgnoli", University of Bologna Medical School, Bologna, Italy
| | - Fausto Castagnetti
- Department of Experimental Diagnostic and Specialty Medicine, DIMES-Institute of Hematology "L. and A. Seràgnoli", University of Bologna Medical School, Bologna, Italy
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16
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Fabbri A, Cossa M, Sonzogni A, Bidoli P, Canova S, Cortinovis D, Abbate MI, Calabrese F, Nannini N, Lunardi F, Rossi G, La Rosa S, Capella C, Tamborini E, Perrone F, Busico A, Capone I, Valeri B, Pastorino U, Albini A, Pelosi G. Thymus neuroendocrine tumors with CTNNB1 gene mutations, disarrayed ß-catenin expression, and dual intra-tumor Ki-67 labeling index compartmentalization challenge the concept of secondary high-grade neuroendocrine tumor: a paradigm shift. Virchows Arch 2017; 471:31-47. [PMID: 28451756 DOI: 10.1007/s00428-017-2130-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 04/09/2017] [Accepted: 04/11/2017] [Indexed: 02/07/2023]
Abstract
We herein report an uncommon association of intimately admixed atypical carcinoid (AC) and large cell neuroendocrine (NE) carcinoma (LCNEC) of the thymus, occurring in two 20- and 39-year-old Caucasian males. Both tumors were treated by maximal thymectomy. The younger patient presented with a synchronous lesion and died of disease after 9 months, while the other patient was associated with a recurrent ectopic adrenocorticotropic hormone Cushing's syndrome and is alive with disease at the 2-year follow-up. MEN1 syndrome was excluded in either case. Immunohistochemically, disarrayed cytoplasmic and nuclear ß-catenin expression was seen alongside an intra-tumor Ki-67 antigen labeling index (LI) ranging from 2 to 80% in the younger patient's tumor and from 3 to 45% in the other. Both exhibited upregulated cyclin D1 and retinoblastoma, while vimentin was overexpressed in the recurrent LCNEC only. Next-generation sequencing revealed CTNNB1, TP53, and JAK3 mutations in the synchronous tumor and CTNNB1 mutation alone in the metachronous tumor (the latter with the same mutation as the first tumor of 17 years prior). None of the 23 T-NET controls exhibited this hallmarking triple alteration (p = 0.003). These findings suggested that LCNEC components developed from pre-existing CTNNB1-mutated AC upon loss-of-function TP53 and gain-of-function JAK3 mutations in one case and an epithelial-mesenchymal transition upon vimentin overexpression in the other case. Both tumors maintained intact cyclin D1-retinoblastoma machinery. Our report challenges the concept of secondary LCNEC as an entity that develops from pre-existing AC as a result of tumor progression, suggesting a paradigm shift to the current pathogenesis of NET.
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17
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Lee KS, Kwak Y, Nam KH, Kim DW, Kang SB, Choe G, Kim WH, Lee HS. Favorable prognosis in colorectal cancer patients with co-expression of c-MYC and ß-catenin. BMC Cancer 2016; 16:730. [PMID: 27619912 PMCID: PMC5020485 DOI: 10.1186/s12885-016-2770-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2015] [Accepted: 09/06/2016] [Indexed: 12/12/2022] Open
Abstract
Background The purpose of our research was to determine the prognostic impact and clinicopathological feature of c-MYC and β-catenin overexpression in colorectal cancer (CRC) patients. Methods Using immunohistochemistry (IHC), we measured the c-MYC and β-catenin expression in 367 consecutive CRC patients retrospectively (cohort 1). Also, c-MYC expression was measured by mRNA in situ hybridization. Moreover, to analyze regional heterogeneity, three sites of CRC including the primary, distant and lymph node metastasis were evaluated in 176 advanced CRC patients (cohort 2). Results In cohort 1, c-MYC protein and mRNA overexpression and ß-catenin nuclear expression were found in 201 (54.8 %), 241 (65.7 %) and 221 (60.2 %) of 367 patients, respectively, each of which was associated with improved prognosis (P = 0.011, P = 0.012 and P = 0.033, respectively). Moreover, co-expression of c-MYC and ß-catenin was significantly correlated with longer survival by univariate (P = 0.012) and multivariate (P = 0.048) studies. Overexpression of c-MYC protein was associated with mRNA overexpression (ρ, 0.479; P < 0.001) and nuclear ß-catenin expression (ρ, 0.282; P < 0.001). Expression of c-MYC and ß-catenin was heterogeneous depending on location in advanced CRC patients (cohort 2). Nevertheless, both c-MYC and ß-catenin expression in primary cancer were significantly correlated with improved survival in univariate (P = 0.001) and multivariate (P = 0.002) analyses. c-MYC and ß-catenin expression of lymph node or distant metastatic tumor was not significantly correlated with patients’ prognosis (P > 0.05). Conclusions Co-expression of c-MYC and ß-catenin was independently correlated with favorable prognosis in CRC patient. We concluded that the expression of c-MYC and ß-catenin might be useful predicting indicator of CRC patient’s prognosis. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2770-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kyu Sang Lee
- Department of Pathology, Seoul National University Bundang Hospital, 173-82 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, Republic of Korea
| | - Yoonjin Kwak
- Department of Pathology, Seoul National University Bundang Hospital, 173-82 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, Republic of Korea.,Department of Pathology, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul, 110-799, Republic of Korea
| | - Kyung Han Nam
- Department of Pathology, Haeundae Paik Hospital, Inje University College of Medicine, 875, Haeun-daero, Haeundae-gu, Busan, 612-896, Republic of Korea
| | - Duck-Woo Kim
- Department of Surgery, Seoul National University Bundang Hospital, 173-82 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, Republic of Korea
| | - Sung-Bum Kang
- Department of Surgery, Seoul National University Bundang Hospital, 173-82 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, Republic of Korea
| | - Gheeyoung Choe
- Department of Pathology, Seoul National University Bundang Hospital, 173-82 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, Republic of Korea.,Department of Pathology, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul, 110-799, Republic of Korea
| | - Woo Ho Kim
- Department of Pathology, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul, 110-799, Republic of Korea
| | - Hye Seung Lee
- Department of Pathology, Seoul National University Bundang Hospital, 173-82 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, Republic of Korea.
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18
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Houschyar KS, Momeni A, Pyles MN, Maan ZN, Whittam AJ, Siemers F. Wnt signaling induces epithelial differentiation during cutaneous wound healing. Organogenesis 2016; 11:95-104. [PMID: 26309090 DOI: 10.1080/15476278.2015.1086052] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Cutaneous wound repair in adult mammals typically does not regenerate original dermal architecture. Skin that has undergone repair following injury is not identical to intact uninjured skin. This disparity may be caused by differences in the mechanisms that regulate postnatal cutaneous wound repair compared to embryonic skin development and thus we seek a deeper understanding of the role that Wnt signaling plays in the mechanisms of skin repair in both fetal and adult wounds. The influence of secreted Wnt signaling proteins in tissue homeostasis has galvanized efforts to identify small molecules that target Wnt-mediated cellular responses. Wnt signaling is activated by wounding and participates in every subsequent stage of the healing process from the control of inflammation and programmed cell death, to the mobilization of stem cell reservoirs within the wound site. Endogenous Wnt signaling augmentation represents an attractive option to aid in the restoration of cutaneous wounds, as the complex mechanisms of the Wnt pathway have been increasingly investigated over the years. In this review, we summarize recent data elucidating the roles that Wnt signaling plays in cutaneous wound healing process.
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Affiliation(s)
- Khosrow S Houschyar
- a Division of Plastic and Reconstructive Surgery; Department of Surgery; Stanford School of Medicine ; Stanford , CA USA. ,b Clinic for Plastic and Reconstructive Surgery ; Bergmannstrost Halle , Germany
| | - Arash Momeni
- a Division of Plastic and Reconstructive Surgery; Department of Surgery; Stanford School of Medicine ; Stanford , CA USA
| | - Malcolm N Pyles
- a Division of Plastic and Reconstructive Surgery; Department of Surgery; Stanford School of Medicine ; Stanford , CA USA
| | - Zeshaan N Maan
- a Division of Plastic and Reconstructive Surgery; Department of Surgery; Stanford School of Medicine ; Stanford , CA USA
| | - Alexander J Whittam
- a Division of Plastic and Reconstructive Surgery; Department of Surgery; Stanford School of Medicine ; Stanford , CA USA
| | - Frank Siemers
- b Clinic for Plastic and Reconstructive Surgery ; Bergmannstrost Halle , Germany
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19
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Soutto M, Romero-Gallo J, Krishna U, Piazuelo MB, Washington MK, Belkhiri A, Peek RM, El-Rifai W. Loss of TFF1 promotes Helicobacter pylori-induced β-catenin activation and gastric tumorigenesis. Oncotarget 2016; 6:17911-22. [PMID: 25980439 PMCID: PMC4627225 DOI: 10.18632/oncotarget.3772] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Accepted: 04/14/2015] [Indexed: 12/14/2022] Open
Abstract
Using in vitro and in vivo models, we investigated the role of TFF1 in suppressing H. pylori-mediated activation of oncogenic β-catenin in gastric tumorigenesis. A reconstitution of TFF1 expression in gastric cancer cells decreased H. pylori-induced β-catenin nuclear translocation, as compared to control (p < 0.001). These cells exhibited significantly lower β-catenin transcriptional activity, measured by pTopFlash reporter, and induction of its target genes (CCND1 and c-MYC), as compared to control. Because of the role of AKT in regulating β-catenin, we performed Western blot analysis and demonstrated that TFF1 reconstitution abrogates H. pylori-induced p-AKT (Ser473), p-β-catenin (Ser552), c-MYC, and CCND1 protein levels. For in vivo validation, we utilized the Tff1-KO gastric neoplasm mouse model. Following infection with PMSS1 H. pylori strain, we detected an increase in the nuclear staining for β-catenin and Ki-67 with a significant induction in the levels of Ccnd1 and c-Myc in the stomach of the Tff1-KO, as compared to Tff1-WT mice (p < 0.05). Only 10% of uninfected Tff1-KO mice, as opposed to one-third of H. pylori-infected Tff1-KO mice, developed invasive adenocarcinoma (p = 0.03). These findings suggest that loss of TFF1 could be a critical step in promoting the H. pylori-mediated oncogenic activation of β-catenin and gastric tumorigenesis.
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Affiliation(s)
- Mohammed Soutto
- Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, Tennessee, USA.,Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Judith Romero-Gallo
- Division of Gastroenterology, Hepatology, & Nutrition, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Uma Krishna
- Division of Gastroenterology, Hepatology, & Nutrition, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - M Blanca Piazuelo
- Division of Gastroenterology, Hepatology, & Nutrition, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - M Kay Washington
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Abbes Belkhiri
- Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Richard M Peek
- Division of Gastroenterology, Hepatology, & Nutrition, Vanderbilt University Medical Center, Nashville, Tennessee, USA.,Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Wael El-Rifai
- Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, Tennessee, USA.,Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA.,Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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20
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Zeng J, Pan H, Liu Y, Xu H, Zhao Z, Li H, Ren J, Chen L, Hu X, Yan Y. Effects of Weipixiao (胃痞消) on Wnt pathway-associated proteins in gastric mucosal epithelial cells from rats with gastric precancerous lesions. Chin J Integr Med 2016; 22:267-75. [DOI: 10.1007/s11655-015-2131-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Indexed: 01/30/2023]
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21
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Lill C, Schneider S, Seemann R, Kadletz L, Aumayr K, Ghanim B, Thurnher D. Correlation of β-catenin, but not PIN1 and cyclin D1, overexpression with disease-free and overall survival in patients with cancer of the parotid gland. Head Neck 2014; 37:30-6. [PMID: 24500803 DOI: 10.1002/hed.23546] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Revised: 08/26/2013] [Accepted: 10/31/2013] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Malignant tumors of the salivary glands comprise about 3% to 5% of all head and neck carcinomas. The purpose of our study was to find possible predictive and/or prognostic markers for parotid cancer. METHODS A total of 46 tissue samples of carcinomas of the parotid gland were immunohistochemically stained for ß-catenin, cyclin D1, and PIN1. The factors were analyzed regarding their prognostic value for disease-free and overall survival. RESULTS An overexpression of the cytoplasmatic ß-catenin was linked to a statistically significant worse outcome regarding disease-free (p = .0296) and overall survival (p = .0416). The 5-year overall survival was 83.9% in patients without and 0% in patients presenting with overexpression of cytoplasmatic ß-catenin. Additionally, Union Internationale Contre le Cancer (UICC) stage correlated with overall survival (p = .0306) and disease-free survival (DFS; p = .0473). CONCLUSION Multivariate analysis showed that overexpression of cytoplasmatic ß-catenin and the UICC stage are 2 independent prognostic markers for survival in patients with parotid cancer.
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Affiliation(s)
- Claudia Lill
- Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
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22
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Deasey S, Nurminsky D, Shanmugasundaram S, Lima F, Nurminskaya M. Transglutaminase 2 as a novel activator of LRP6/β-catenin signaling. Cell Signal 2013; 25:2646-51. [PMID: 23993960 DOI: 10.1016/j.cellsig.2013.08.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 08/24/2013] [Indexed: 11/15/2022]
Abstract
The β-catenin signaling axis is critical for normal embryonic development and tissue homeostasis in adults. We have previously shown that extracellular enzyme transglutaminase 2 (TG2) activates β-catenin signaling in vascular smooth muscle cells (VSMCs). In this study, we provide several lines of evidence that TG2 functions as an activating ligand of the LRP5/6 receptors. Specifically, we show that TG2 synergizes with LRP6 in the activation of β-catenin-dependent gene expression in Cos-7 cells. Interfering with the LRP5/6 receptors attenuates TG2-induced activation of β-catenin in Cos-7 cells. Further, we show that TG2 binds directly to the extracellular domain of LRP6, which is also able to act as a substrate for TG2-mediated protein cross-linking. Furthermore, inhibitors of TG2 protein cross-linking quench the observed TG2-induced β-catenin activation, implicating protein cross-linking as a novel regulatory mechanism for this pathway. Together, our findings identify and characterize a new activating ligand of the LRP5/6 receptors and uncover a novel activity of TG2 as an agonist of β-catenin signaling, contributing to the understanding of diverse developmental events and pathological conditions in which transglutaminase and β-catenin signaling are implicated.
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Affiliation(s)
- S Deasey
- Dept. of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, United States
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23
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Abstract
AIM Menstrual blood derived stem cells (MenSCs) are unique stem cells that have been isolated and identified recently. The special traits of MenSCs can be related to the cell signaling pathways. In this study, in order to find out the role of Wnt signaling on MenSCs proliferation, we evaluated ß-catenin expression as a key participant in Wnt signaling pathway in response to Lithium chloride (LiCl). METHODS MenSCs were isolated from healthy women by combining gradient density centrifugation with plastic adherence. After characterization of the isolated cells, cell proliferation of MenSCs in presence of 10-15 mM LiCl was evaluated by MTT assay. ß-catenin expression of the treated cells was examined using immunofluorescence technique. RESULTS Flow cytometric analysis revealed that both mesenchymal and embryonic stem cell markers are expressed on menstrual blood stem cells. MTT value decreased depending on the LiCl concentration. The proliferation of MenSCs cultivated in culture media containing 15mM LiCl was approximately two fold less than those grown without LiCl (p<0.01). Moreover, nuclear accumulation of ß-catenin protein in cells treated by LiCl was greater than cells without LiCl. CONCLUSION The MenSCs are stem cell populations with high proliferation ability and unique immunophenotyping properties. Our results demonstrated that Wnt signaling pathway regulates MenSCs proliferation via trans-localization of activated-ß-catenin protein.
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Affiliation(s)
- S Kazemnejad
- Reproductive Biotechnology Research Center, Avicenna Research Institute , ACECR, Tehran, Iran . ; Paramedical Faculty of Guilan University of Medical Sciences , Langroud, Guilan, Iran
| | - M Khanmohammadi
- Reproductive Biotechnology Research Center, Avicenna Research Institute , ACECR, Tehran, Iran
| | - Ah Zarnani
- Nanobiotechnology Research Center, Avicenna Research Institute , ACECR, Tehran, Iran
| | - I Nikokar
- Paramedical Faculty of Guilan University of Medical Sciences , Langroud, Guilan, Iran
| | - S Saghari
- Paramedical Faculty of Guilan University of Medical Sciences , Langroud, Guilan, Iran
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Kawano T, Ahmad R, Nogi H, Agata N, Anderson K, Kufe D. MUC1 oncoprotein promotes growth and survival of human multiple myeloma cells. Int J Oncol 2008; 33:153-159. [PMID: 18575761 PMCID: PMC3086751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
The MUC1 oncoprotein is aberrantly expressed in human multiple myeloma cells by mechanisms that are not understood. Moreover, the functional role of MUC1 in multiple myeloma is not known. The present studies demonstrate that the MUC1 gene locus is amplified in multiple myeloma cell lines and in primary cells from patients. The KMS28PE multiple myeloma cell line, which was found to have MUC1 gene amplification, was stably silenced for MUC1 using different siRNAs. Silencing MUC1 was associated with a decrease in nuclear beta-catenin levels, consistent with the function of MUC1 in stabilizing beta-catenin. MUC1 is also known to activate the IKKbeta-->NF-kappaB pathway and KMS28PE cells silenced for MUC1 were found to have downregulation of IKKbeta and IkappaBalpha phosphorylation, and decreased nuclear targeting of NF-kappaB p65. The results also demonstrate that MUC1: i) contributes to KMS28PE cell proliferation, and ii) protects against apoptosis and loss of self-renewal in the response to melphalan and dexamethasone. These findings indicate that MUC1 activates the beta-catenin and NF-kappaB pathways in multiple myeloma cells and contributes to their growth and survival.
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Affiliation(s)
- Takeshi Kawano
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA
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