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Campos SGP, Gonçalves BF, Ruiz TFR, Leonel ECR, Ribeiro DL, Falleiros Junior LR, Goes RM, Taboga SR. Proteoglycans orchestrate remodeling of prostatic cytoarchitecture after androgenic blockade in old gerbils. Prostate 2023; 83:179-189. [PMID: 36262059 DOI: 10.1002/pros.24451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 06/06/2022] [Accepted: 06/20/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND The aim of this study was to evaluate modifications in proteoglycan morphology and composition in the prostatic stroma of 18-month-old gerbils after surgical castration, in association or not with an androgenic blockade. METHODS The animals (n = 5) were sorted into groups subjected or not to antiandrogen treatment (flutamide 10 mg/kg/day) administered for the total postsurgery period and euthanized at 7- or 30-day postcastration; the control group consisted of intact animals. Tissue analysis included immunohistochemical assessment (perlecan and chondroitin sulfate) and proteoglycan morphology was analyzed by transmission electron microscopy. RESULTS Chondroitin sulfate frequency was increased 7 days postcastration with an androgenic blockade. The presence of these carbohydrates was rare after 30 days of androgenic blockade treatment. There was a significant increase in the amount of perlecan in the prostate stroma from groups subjected to castration plus flutamide for 7 or 30 days. Ultrastructural analysis showed that the incidence of areas occupied by proteoglycans and basement membrane was altered by treatment. In addition, androgenic blockade results in changes in the amount, thickness, and morphology of these structures. At 30 days postcastration, with or without flutamide treatment, larger proteoglycans were common. CONCLUSIONS In this study, in particular, the decrease in chondroitin sulfate after the longer period might be understood as a prostatic response to androgenic deprivation, while the high frequency and permanence of perlecan led to the assumption that its modulation could be androgen-independent. Length and form alterations in proteoglycans as well as associations among them and with the basement membrane were dynamic events in the prostate microenvironment.
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Affiliation(s)
- Silvana G P Campos
- Department of Biological Sciences, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (Unesp), São José do Rio Preto, São Paulo, Brazil
| | - Bianca F Gonçalves
- Department of Biological Sciences, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (Unesp), São José do Rio Preto, São Paulo, Brazil
| | - Thalles Fernando Rocha Ruiz
- Department of Structural and Functional Biology, State University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Ellen Cristina R Leonel
- Department of Histology, Embryology and Cell Biology, Institute of Biological Sciences, Federal University of Goiás (UFG), Goiânia, Goiás, Brazil
| | - Daniele L Ribeiro
- Department of Cell Biology, Histology and Embriology, Institute of Biomedical Sciences-ICBIM, Federal University of Uberlândia (UFU), Uberlândia, Minas Gerais, Brazil
| | | | - Rejane M Goes
- Department of Biological Sciences, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (Unesp), São José do Rio Preto, São Paulo, Brazil
| | - Sebastião R Taboga
- Department of Biological Sciences, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (Unesp), São José do Rio Preto, São Paulo, Brazil
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Quereda C, Pastor À, Martín-Nieto J. Involvement of abnormal dystroglycan expression and matriglycan levels in cancer pathogenesis. Cancer Cell Int 2022; 22:395. [PMID: 36494657 PMCID: PMC9733019 DOI: 10.1186/s12935-022-02812-7] [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: 08/24/2022] [Accepted: 11/28/2022] [Indexed: 12/13/2022] Open
Abstract
Dystroglycan (DG) is a glycoprotein composed of two subunits that remain non-covalently bound at the plasma membrane: α-DG, which is extracellular and heavily O-mannosyl glycosylated, and β-DG, an integral transmembrane polypeptide. α-DG is involved in the maintenance of tissue integrity and function in the adult, providing an O-glycosylation-dependent link for cells to their extracellular matrix. β-DG in turn contacts the cytoskeleton via dystrophin and participates in a variety of pathways transmitting extracellular signals to the nucleus. Increasing evidence exists of a pivotal role of DG in the modulation of normal cellular proliferation. In this context, deficiencies in DG glycosylation levels, in particular those affecting the so-called matriglycan structure, have been found in an ample variety of human tumors and cancer-derived cell lines. This occurs together with an underexpression of the DAG1 mRNA and/or its α-DG (core) polypeptide product or, more frequently, with a downregulation of β-DG protein levels. These changes are in general accompanied in tumor cells by a low expression of genes involved in the last steps of the α-DG O-mannosyl glycosylation pathway, namely POMT1/2, POMGNT2, CRPPA, B4GAT1 and LARGE1/2. On the other hand, a series of other genes acting earlier in this pathway are overexpressed in tumor cells, namely DOLK, DPM1/2/3, POMGNT1, B3GALNT2, POMK and FKTN, hence exerting instead a pro-oncogenic role. Finally, downregulation of β-DG, altered β-DG processing and/or impaired β-DG nuclear levels are increasingly found in human tumors and cell lines. It follows that DG itself, particular genes/proteins involved in its glycosylation and/or their interactors in the cell could be useful as biomarkers of certain types of human cancer, and/or as molecular targets of new therapies addressing these neoplasms.
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Affiliation(s)
- Cristina Quereda
- grid.5268.90000 0001 2168 1800Departamento de Fisiología, Genética y Microbiología, Facultad de Ciencias, Universidad de Alicante, Campus Universitario San Vicente, P.O. Box 99, 03080 Alicante, Spain
| | - Àngels Pastor
- grid.5268.90000 0001 2168 1800Departamento de Fisiología, Genética y Microbiología, Facultad de Ciencias, Universidad de Alicante, Campus Universitario San Vicente, P.O. Box 99, 03080 Alicante, Spain
| | - José Martín-Nieto
- grid.5268.90000 0001 2168 1800Departamento de Fisiología, Genética y Microbiología, Facultad de Ciencias, Universidad de Alicante, Campus Universitario San Vicente, P.O. Box 99, 03080 Alicante, Spain ,grid.5268.90000 0001 2168 1800Instituto Multidisciplinar para el Estudio del Medio ‘Ramón Margalef’, Universidad de Alicante, 03080 Alicante, Spain
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Kent AJ, Mayer N, Inman JL, Hochman-Mendez C, Bissell MJ, Robertson C. The microstructure of laminin-111 compensates for dystroglycan loss in mammary epithelial cells in downstream expression of milk proteins. Biomaterials 2019; 218:119337. [PMID: 31325803 DOI: 10.1016/j.biomaterials.2019.119337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 07/05/2019] [Indexed: 01/11/2023]
Abstract
Laminin-111 (Ln-1), an extracellular matrix (ECM) glycoprotein found in the basement membrane of mammary gland epithelia, is essential for lactation. In mammary epithelial cells (MECs), dystroglycan (Dg) is believed to be necessary for polymerization of laminin-111 into networks., thus we asked whether correct polymerization could compensate for Dg loss. Artificially polymerized laminin-111 and the laminin-glycoprotein mix Matrigel, both formed branching, spread networks with fractal dimensions from 1.7 to 1.8, whereas laminin-111 in neutral buffers formed small aggregates without fractal properties (a fractal dimension of 2). In Dg knockout cells, either polymerized laminin-111 or Matrigel readily attached to the cell surface, whereas aggregated laminin-111 did not. In contrast, polymerized and aggregated laminin-111 bound similarly to Dg knock-ins. Both polymerized laminin-111 and Matrigel promoted cell rounding, clustering, formation of tight junctions, and expression of milk proteins, whereas aggregated Ln-1 did not attach to cells or promote functional differentiation. These findings support that the microstructure of Ln-1 networks in the basement membrane regulates mammary epithelial cell function.
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Affiliation(s)
- A J Kent
- Division of Biological Systems and Engineering, Lawrence Berkeley National Lab, 1 Cyclotron Rd. MS 977, Berkeley, CA, 94720, USA
| | - N Mayer
- Division of Biological Systems and Engineering, Lawrence Berkeley National Lab, 1 Cyclotron Rd. MS 977, Berkeley, CA, 94720, USA
| | - J L Inman
- Division of Biological Systems and Engineering, Lawrence Berkeley National Lab, 1 Cyclotron Rd. MS 977, Berkeley, CA, 94720, USA
| | - C Hochman-Mendez
- Regenerative Medicine Research, Texas Heart Institute, Houston TX 77030, USA
| | - M J Bissell
- Division of Biological Systems and Engineering, Lawrence Berkeley National Lab, 1 Cyclotron Rd. MS 977, Berkeley, CA, 94720, USA
| | - C Robertson
- Division of Biological Systems and Engineering, Lawrence Berkeley National Lab, 1 Cyclotron Rd. MS 977, Berkeley, CA, 94720, USA; Materials Engineering Division, Lawrence Livermore National Lab. 7000 East Ave. Livermore, CA 94550, USA.
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Nogueira Pangrazi E, da Silva RF, Kido LA, Montico F, Cagnon VHA. Nintedanib treatment delays prostate dorsolateral lobe cancer progression in the TRAMP model: contribution to the epithelial-stromal interaction balance. Cell Biol Int 2017; 42:153-168. [PMID: 28980742 DOI: 10.1002/cbin.10881] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 09/30/2017] [Indexed: 12/11/2022]
Abstract
Prostate cancer (PCa) progression mechanism has been linked to epithelial proliferation, tumor invasion ability, and growth factors. Nintedanib (BIBF 1120) has been reported as being FGF and VEGF pathway inhibitors, exhibiting antitumor activity. Thus, the objective herein was to characterize the early Nintedanib treatment effects on the structure and molecules involved in the basal membrane, the extracellular matrix (ECM) maintenance, in addition to the angiogenesis and mitogenic processes at different grades of prostatic tumor development in TRAMP mice. Therefore, 45 male TRAMP mice were divided into control groups: 8-week-old mice (TC8), 12-week-old mice (TC12), and 16-week-old mice (TC16); and treated groups with 10 mg/kg/day Nintedanib dose for 4 weeks. The treated groups were euthanized at 12 (TN12) and 16 (TN16) weeks of age. Samples from the dorsolateral lobe were collected and processed for light microscopy, immunohistochemistry, Western blotting, and microvessel density analysis. The results showed that early Nintedanib treatment led to an increase of healthy epithelium frequency and a reduction of LGPIN and a maximum vascularization density in the TN12 group. Also, treatment led to a well-differentiated adenocarcinoma decrease and an α and β dystroglycan and also laminin 1 increase in the TN16 group. IGFR1 decreased in the TN16 group. To conclude, early Nintedanib treatment led to a reduction in cancer severity, interfering in both ECM compounds and angiogenesis process to then contribute to a balance, not only in the prostatic epithelium and stroma, but also in the epithelial-stromal interaction during PCa progression.
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Affiliation(s)
- Ellen Nogueira Pangrazi
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), P.O. Box 6109, 13083-865, São Paulo, Brazil
| | - Raquel F da Silva
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), P.O. Box 6109, 13083-865, São Paulo, Brazil
| | - Larissa A Kido
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), P.O. Box 6109, 13083-865, São Paulo, Brazil
| | - Fabio Montico
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), P.O. Box 6109, 13083-865, São Paulo, Brazil
| | - Valéria H A Cagnon
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), P.O. Box 6109, 13083-865, São Paulo, Brazil
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Rodriguez-Fraticelli AE, Martin-Belmonte F. Picking up the threads: extracellular matrix signals in epithelial morphogenesis. Curr Opin Cell Biol 2014; 30:83-90. [DOI: 10.1016/j.ceb.2014.06.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 06/16/2014] [Accepted: 06/16/2014] [Indexed: 01/30/2023]
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Abstract
Cell polarity is characterised by differences in structure, composition and function between at least two poles of a cell. In epithelial cells, these spatial differences allow for the formation of defined apical and basal membranes. It has been increasingly recognised that cell-matrix interactions and integrins play an essential role in creating epithelial cell polarity, although key gaps in our knowledge remain. This Commentary will discuss the mounting evidence for the role of integrins in polarising epithelial cells. We build a model in which both inside-out signals to polarise basement membrane assembly at the basal surface, and outside-in signals to control microtubule apical-basal orientation and vesicular trafficking are required for establishing and maintaining the orientation of epithelial cell polarity. Finally, we discuss the relevance of the basal integrin polarity axis to cancer. This article is part of a Minifocus on Establishing polarity.
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Affiliation(s)
- Jessica L Lee
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Charles H Streuli
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Oxford Road, Manchester M13 9PT, UK
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Esser AK, Miller MR, Huang Q, Meier MM, Beltran-Valero de Bernabé D, Stipp CS, Campbell KP, Lynch CF, Smith BJ, Cohen MB, Henry MD. Loss of LARGE2 disrupts functional glycosylation of α-dystroglycan in prostate cancer. J Biol Chem 2013; 288:2132-42. [PMID: 23223448 PMCID: PMC3554886 DOI: 10.1074/jbc.m112.432807] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Indexed: 11/06/2022] Open
Abstract
Dystroglycan (DG) is a cell surface receptor for extracellular matrix proteins and is involved in cell polarity, matrix organization, and mechanical stability of tissues. Previous studies documented loss of DG protein expression and glycosylation in a variety of cancer types, but the underlying mechanisms and the functional consequences with respect to cancer progression remain unclear. Here, we show that the level of expression of the βDG subunit as well as the glycosylation status of the αDG subunit inversely correlate with the Gleason scores of prostate cancers; furthermore, we show that the functional glycosylation of αDG is substantially reduced in prostate cancer metastases. Additionally, we demonstrate that LARGE2 (GYLTL1B), a gene not previously implicated in cancer, regulates functional αDG glycosylation in prostate cancer cell lines; knockdown of LARGE2 resulted in hypoglycosylation of αDG and loss of its ability to bind laminin-111 while overexpression restored ligand binding and diminished growth and migration of an aggressive prostate cancer cell line. Finally, our analysis of LARGE2 expression in human cancer specimens reveals that LARGE2 is significantly down-regulated in the context of prostate cancer, and that its reduction correlates with disease progression. Our results describe a novel molecular mechanism to account for the commonly observed hypoglycosylation of αDG in prostate cancer.
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Affiliation(s)
| | | | - Qin Huang
- From the Department of Molecular Physiology and Biophysics
| | - Melissa M. Meier
- Department of Pathology, The Roy J. and Lucille A. Carver College of Medicine
| | | | - Christopher S. Stipp
- Department of Biology
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52242
| | - Kevin P. Campbell
- From the Department of Molecular Physiology and Biophysics
- Howard Hughes Medical Institute
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52242
| | - Charles F. Lynch
- Department of Epidemiology
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52242
| | - Brian J. Smith
- Department of Biostatistics, College of Public Health
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52242
| | - Michael B. Cohen
- Department of Pathology, The Roy J. and Lucille A. Carver College of Medicine
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52242
| | - Michael D. Henry
- From the Department of Molecular Physiology and Biophysics
- Department of Pathology, The Roy J. and Lucille A. Carver College of Medicine
- Holden Comprehensive Cancer Center, University of Iowa, Iowa City, Iowa 52242
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8
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Hetzl AC, Fávaro WJ, Billis A, Ferreira U, Cagnon VHA. Steroid hormone receptors, matrix metalloproteinases, insulin-like growth factor, and dystroglycans interactions in prostatic diseases in the elderly men. Microsc Res Tech 2012; 75:1197-205. [PMID: 22648746 DOI: 10.1002/jemt.22049] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Accepted: 03/13/2012] [Indexed: 01/06/2023]
Abstract
OBJECTIVES The aim of this study was to evaluate the reactivity of steroid hormone receptors (SHRs), dystroglycans (DGs), matrix metalloproteinases (MMPs), insulin-like growth factor receptor (IGFR-1), and laminin (Lam) in both prostatic stromal and epithelial compartments showing different diseases in elderly men. METHODS Sixty prostatic samples were obtained from 60- to 90-year-old patients (mean 63 years) with and without prostatic lesions from Hospital of the School of Medicine, State University of Campinas (UNICAMP). The Samples were divided into standard (no lesions); high grade prostatic intraepithelial neoplasia (HGPIN); prostatic cancer (PC); and benign prostatic hyperplasia (BPH) groups. The samples were submitted to immunohistochemistry and Western blotting analyses. Research Ethics Committee of the School of Medicine, University of Campinas/UNICAMP (number 0094.0.146.000-08). RESULTS The results showed increased IGFR-1 and MMPs protein levels in the PC and HGPIN groups. Decreased αDG and βDG protein levels were verified in the PC and HGPIN groups. Androgen receptor (AR) reactivity was similar among all groups. Estrogen receptor α (Erα) immunoreactivity was more intense in the epithelium in the PC and HGPIN groups. Estrogen receptor β (ERβ) immunoreactivity was weak in the epithelium of the HGPIN and PC groups. CONCLUSIONS To conclude, there was an association among IGFR-1, MMPs, and SHRs, indicating IGFR-1 as a target molecule in prostate therapy, considering the IGF proliferative properties. Also, the distinct SHRs reactivities in the lesions in both prostatic compartments indicated different paracrine signals and pointed out the importance of estrogenic pathways in the activation of these disorders.
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Affiliation(s)
- A C Hetzl
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas-UNICAMP, Campinas, SP, Brazil
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Svensson RU, Haverkamp JM, Thedens DR, Cohen MB, Ratliff TL, Henry MD. Slow disease progression in a C57BL/6 pten-deficient mouse model of prostate cancer. THE AMERICAN JOURNAL OF PATHOLOGY 2011; 179:502-12. [PMID: 21703427 DOI: 10.1016/j.ajpath.2011.03.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2010] [Revised: 03/04/2011] [Accepted: 03/31/2011] [Indexed: 12/17/2022]
Abstract
Prostate-specific deletion of Pten in mice has been reported to recapitulate histological progression of human prostate cancer. To improve on this model, we introduced the conditional ROSA26 luciferase reporter allele to monitor prostate cancer progression via bioluminescence imaging and extensively backcrossed mice onto the albino C57BL/6 genetic background to address variability in tumor kinetics and to enhance imaging sensitivity. Bioluminescence signal increased rapidly in Pten(p-/-) mice from 3 to 11 weeks, but was much slower from 11 to 52 weeks. Changes in bioluminescence signal were correlated with epithelial proliferation. Magnetic resonance imaging revealed progressive increases in prostate volume, which were attributed to excessive fluid retention in the anterior prostate and to expansion of the stroma. Development of invasive prostate cancer in 52-week-old Pten(p-/-) mice was rare, indicating that disease progression was slowed relative to that in previous reports. Tumors in these mice exhibited a spontaneous inflammatory phenotype and were rapidly infiltrated by myeloid-derived suppressor cells. Although Pten(p-/-) tumors responded to androgen withdrawal, they failed to exhibit relapsed growth for up to 1 year. Taken together, these data identify a mild prostate cancer phenotype in C57BL/6 prostate-specific Pten-deficient mice, reflecting effects of the C57BL/6 genetic background on cancer progression. This model provides a platform for noninvasive assessment of how genetic and environmental risk factors may affect disease progression.
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Affiliation(s)
- Robert U Svensson
- Department of Molecular Physiology and Biophysics, Roy J. and Lucille A. Carver College of Medicine, 6-510 Bowen Science Bldg., University of Iowa, Iowa City, IA 52240, USA
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Leonoudakis D, Singh M, Mohajer R, Mohajer P, Fata JE, Campbell KP, Muschler JL. Dystroglycan controls signaling of multiple hormones through modulation of STAT5 activity. J Cell Sci 2010; 123:3683-92. [PMID: 20940259 DOI: 10.1242/jcs.070680] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Receptors for basement membrane (BM) proteins, including dystroglycan (DG), coordinate tissue development and function by mechanisms that are only partially defined. To further elucidate these mechanisms, we generated a conditional knockout of DG in the epithelial compartment of the mouse mammary gland. Deletion of DG caused an inhibition of mammary epithelial outgrowth and a failure of lactation. Surprisingly, loss of DG in vivo did not disrupt normal tissue architecture or BM formation, even though cultured Dag1-null epithelial cells failed to assemble laminin-111 at the cell surface. The absence of DG was, however, associated with a marked loss in activity of signal transducer and activator of transcription 5 (STAT5). Loss of DG perturbed STAT5 signaling induced by either prolactin or growth hormone. We found that DG regulates signaling by both hormones in a manner that is dependent on laminin-111 binding, but independent of the DG cytoplasmic domain, suggesting that it acts via a co-receptor mechanism reliant on DG-mediated laminin assembly. These results demonstrate a requirement for DG in the growth and function of a mammalian epithelial tissue in vivo. Moreover, we reveal a selective role for DG in the control of multiple STAT5-dependent hormone signaling pathways, with implications for numerous diseases in which DG function is compromised.
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Affiliation(s)
- Dmitri Leonoudakis
- California Pacific Medical Center Research Institute, San Francisco, CA 94107, USA
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