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Sansilvestri-Morel P, Harouki-Crochemore N, Bertin F, Bertheux H, Vermeil de Conchard G, Diguet N, Desfosses E, Lecomte M, Gonzalez A, Diez J, Tupinon-Mathieu I, Delerive P. Deficiency of Procollagen C-Proteinase Enhancer 1 in Mice has No Major Impact on Cardiac Collagen and Function Under Basal Conditions. J Cardiovasc Pharmacol 2021; 78:e703-e713. [PMID: 34369899 DOI: 10.1097/fjc.0000000000001122] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 07/01/2021] [Indexed: 11/25/2022]
Abstract
ABSTRACT Maturation of fibrillar collagen is known to play a crucial role in the pathophysiology of myocardial fibrosis. Procollagen C-proteinase enhancer 1 (PCPE1) has a key role in procollagen maturation and collagen fibril formation. The phenotype of both male and female PCPE1 knock-out mice was investigated under basal conditions to explore the potential of PCPE1 as a therapeutic target in heart failure. Global constitutive PCPE1-/- mice were generated. Serum procollagen I C-terminal propeptide, organ histology, and cutaneous wound healing were assessed in both wild type (WT) and PCPE1-/- mice. In addition, the cardiac expression of genes involved in collagen metabolism was investigated and the total and insoluble cardiac collagen contents determined. Cardiac function was evaluated by echocardiography. No differences in survival, clinical chemistry, or organ histology were observed in PCPE1-/- mice compared with WT. Serum procollagen I C-terminal propeptide was lower in PCPE1-/- mice. Cardiac mRNA expression of Bmp1, Col1a1, Col3a1, and Loxl2 was similar, whereas Tgfb and Loxl1 mRNA levels were decreased in PCPE1-/- mice compared with sex-matched WT. No modification of total or insoluble cardiac collagen content was observed between the 2 strains. Ejection fraction was slightly decreased in PCPE1-/- male mice, but not in females. Finally, wound healing was not altered in PCPE1-/- mice. PCPE1 deficiency does not trigger any major liabilities and does not affect cardiac collagen content nor its function under basal conditions. Further studies are required to evaluate its role under stressed conditions and determine its suitability as a therapeutic target for heart failure.
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Affiliation(s)
| | - Najah Harouki-Crochemore
- Cardiovascular and Metabolic Diseases Research, Institut de Recherches Servier, Suresnes, France
| | - Florence Bertin
- Cardiovascular and Metabolic Diseases Research, Institut de Recherches Servier, Suresnes, France
| | | | | | - Nicolas Diguet
- Cardiovascular and Metabolic Diseases Research, Institut de Recherches Servier, Suresnes, France
| | | | - Mathilde Lecomte
- Cardiovascular and Metabolic Diseases Research, Institut de Recherches Servier, Suresnes, France
| | - Arantxa Gonzalez
- Program of Cardiovascular Diseases, CIMA Universidad de Navarra, IdiSNA and CIBERCV, Pamplona, Spain
| | - Javier Diez
- Program of Cardiovascular Diseases, CIMA Universidad de Navarra, IdiSNA and CIBERCV, Pamplona, Spain
- Departments of Cardiology and Cardiac Surgery and of Nephrology, Clínica Universidad de Navarra, Pamplona, Spain; and
| | - Isabelle Tupinon-Mathieu
- Cardiovascular and Metabolic Diseases, Institut de Recherches Internationales Servier, Suresnes, France
| | - Philippe Delerive
- Cardiovascular and Metabolic Diseases Research, Institut de Recherches Servier, Suresnes, France
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2
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Fracaro L, Senegaglia AC, Herai RH, Leitolis A, Boldrini-Leite LM, Rebelatto CLK, Travers PJ, Brofman PRS, Correa A. The Expression Profile of Dental Pulp-Derived Stromal Cells Supports Their Limited Capacity to Differentiate into Adipogenic Cells. Int J Mol Sci 2020; 21:E2753. [PMID: 32326648 PMCID: PMC7215853 DOI: 10.3390/ijms21082753] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 03/04/2020] [Revised: 03/26/2020] [Accepted: 04/07/2020] [Indexed: 12/16/2022] Open
Abstract
Mesenchymal stromal cells (MSCs) can self-renew, differentiate into specialised cells and have different embryonic origins-ectodermal for dental pulp-derived MSCs (DPSCs) and mesodermal for adipose tissue-derived MSCs (ADSCs). Data on DPSCs adipogenic differentiation potential and timing vary, and the lack of molecular and genetic information prompted us to gain a better understanding of DPSCs adipogenic differentiation potential and gene expression profile. While DPSCs differentiated readily along osteogenic and chondrogenic pathways, after 21 days in two different types of adipogenic induction media, DPSCs cultures did not contain lipid vacuoles and had low expression levels of the adipogenic genes proliferator-activated receptor gamma (PPARG), lipoprotein lipase (LPL) and CCAAT/enhancer-binding protein alpha (CEBPA). To better understand this limitation in adipogenesis, transcriptome analysis in undifferentiated DPSCs was carried out, with the ADSC transcriptome used as a positive control. In total, 14,871 transcripts were common to DPSCs and ADSCs, some were unique (DPSCs: 471, ADSCs: 1032), and 510 were differentially expressed genes. Detailed analyses of overrepresented transcripts showed that DPSCs express genes that inhibit adipogenic differentiation, revealing the possible mechanism for their limited adipogenesis.
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Affiliation(s)
- Letícia Fracaro
- Core for Cell Technology, School of Medicine, Pontifícia Universidade Católica do Paraná—PUCPR, Curitiba, Parana 80215-901, Brazil; (L.F.); (A.C.S.); (L.M.B.-L.); (C.L.K.R.)
| | - Alexandra C. Senegaglia
- Core for Cell Technology, School of Medicine, Pontifícia Universidade Católica do Paraná—PUCPR, Curitiba, Parana 80215-901, Brazil; (L.F.); (A.C.S.); (L.M.B.-L.); (C.L.K.R.)
| | - Roberto H. Herai
- Graduate Program in Health Sciences (PPGCS), School of Medicine, Pontifícia Universidade Católica do Paraná—PUCPR, Curitiba, Parana 80215-901, Brazil;
| | - Amanda Leitolis
- Laboratory of Basic Biology of Stem Cells, Carlos Chagas Institute, Fiocruz-Parana, Curitiba, Parana 81350-010, Brazil;
| | - Lidiane M. Boldrini-Leite
- Core for Cell Technology, School of Medicine, Pontifícia Universidade Católica do Paraná—PUCPR, Curitiba, Parana 80215-901, Brazil; (L.F.); (A.C.S.); (L.M.B.-L.); (C.L.K.R.)
| | - Carmen L. K. Rebelatto
- Core for Cell Technology, School of Medicine, Pontifícia Universidade Católica do Paraná—PUCPR, Curitiba, Parana 80215-901, Brazil; (L.F.); (A.C.S.); (L.M.B.-L.); (C.L.K.R.)
| | - Paul J. Travers
- Centre for Regenerative Medicine, University of Edinburgh, Edinburgh EH16 4UU, Scotland, UK;
| | - Paulo R. S. Brofman
- Core for Cell Technology, School of Medicine, Pontifícia Universidade Católica do Paraná—PUCPR, Curitiba, Parana 80215-901, Brazil; (L.F.); (A.C.S.); (L.M.B.-L.); (C.L.K.R.)
| | - Alejandro Correa
- Laboratory of Basic Biology of Stem Cells, Carlos Chagas Institute, Fiocruz-Parana, Curitiba, Parana 81350-010, Brazil;
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3
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Longmate WM, Lyons SP, DeFreest L, Van De Water L, DiPersio CM. Opposing Roles of Epidermal Integrins α3β1 and α9β1 in Regulation of mTLD/BMP-1-Mediated Laminin-γ2 Processing during Wound Healing. J Invest Dermatol 2018; 138:444-451. [PMID: 28923241 PMCID: PMC5794664 DOI: 10.1016/j.jid.2017.09.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 08/25/2017] [Accepted: 09/01/2017] [Indexed: 11/27/2022]
Abstract
Proteolytic processing of the laminin-γ2 chain is a hallmark of basement membrane maturation in the skin. Integrin α3β1, a major receptor for epidermal adhesion to laminin-332, is critical for proper basement membrane organization during skin development and wound healing. Previously, we identified a role for α3β1 in promoting the processing of laminin-γ2 in cultured keratinocytes in vitro and in wound epidermis in vivo. In this study we identify the Bmp1 gene, which encodes variants of the mTLD/BMP-1 metalloproteases, as a critical regulator of α3β1-dependent laminin-γ2 processing, thereby expanding the role of this integrin in controlling the secretion by the epidermis of factors that modulate the tissue microenvironment. Because our previous studies identified another epidermal integrin, α9β1, as a suppressive regulator of α3β1-dependent wound angiogenesis, we investigated whether α9β1 has a similar cross-suppressive effect on the ability of α3β1 to promote basement membrane organization. Here, we show that, rather than a cross-suppressive role, α9β1 has an opposing role in basement membrane assembly/maturation through reduced laminin-γ2 processing via mTLD/BMP-1. Although α3β1 promotes this process during wound healing, α9β1 has an inhibitory role, suggesting that regulation of basement membrane assembly requires a complex interplay between these distinct epidermal integrins.
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Affiliation(s)
- Whitney M Longmate
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, Albany, New York, USA
| | - Scott P Lyons
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, Albany, New York, USA
| | - Lori DeFreest
- Department of Surgery, Albany Medical College, Albany, New York, USA
| | - Livingston Van De Water
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, Albany, New York, USA; Department of Surgery, Albany Medical College, Albany, New York, USA
| | - C Michael DiPersio
- Department of Regenerative and Cancer Cell Biology, Albany Medical College, Albany, New York, USA; Department of Surgery, Albany Medical College, Albany, New York, USA.
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4
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Hasegawa T, Kamada Y, Hosoya T, Fujita S, Nishiyama Y, Iwata N, Hiramatsu Y, Otsuka F. A regulatory role of androgen in ovarian steroidogenesis by rat granulosa cells. J Steroid Biochem Mol Biol 2017; 172:160-165. [PMID: 28684382 DOI: 10.1016/j.jsbmb.2017.07.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 06/25/2017] [Accepted: 07/01/2017] [Indexed: 01/07/2023]
Abstract
Excess androgen and insulin-like growth factor (IGF)-I in the ovarian follicle has been suggested to be involved in the pathophysiology of polycystic ovary syndrome (PCOS). Here we investigated the impact of androgen and IGF-I on the regulatory mechanism of ovarian steroidogenesis using rat primary granulosa cells. It was revealed that androgen treatment with dihydrotestosterone (DHT) amplified progesterone synthesis in the presence of FSH and IGF-I, whereas it had no significant effect on estrogen synthesis by rat granulosa cells. In accordance with the effects of androgen on steroidogenesis, DHT enhanced the expression of progesterogenic factors and enzymes, including StAR, P450scc and 3βHSD, and cellular cAMP synthesis induced by FSH and IGF-I. Of note, treatment with DHT and IGF-I suppressed Smad1/5/8 phosphorylation and transcription of the BMP target gene Id-1, suggesting that androgen and IGF-I counteract BMP signaling that inhibits FSH-induced progesterone synthesis in rat granulosa cells. DHT was revealed to suppress the expression of BMP-6 receptors, consisting of ALK-2, ALK-6 and ActRII, while it increased the expression of inhibitory Smads in rat granulosa cells. In addition, IGF-I treatment upregulated androgen receptor (AR) expression and DHT treatment suppressed IGF-I receptor expression on rat granulosa cells. Collectively, the results indicate that androgen and IGF-I mutually interact and accelerate progesterone production, at least in part, by regulating endogenous BMP signaling in rat granulosa cells. Cooperative effects of androgen and IGF-I counteract endogenous BMP-6 activity in rat granulosa cells, which is likely to be functionally linked to the steroidogenic property shown in the PCOS ovary.
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Affiliation(s)
| | | | | | | | | | - Nahoko Iwata
- General Medicine, Okayama University Graduate School of Medicine, Dentistry Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan
| | | | - Fumio Otsuka
- General Medicine, Okayama University Graduate School of Medicine, Dentistry Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kitaku, Okayama, 700-8558, Japan.
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5
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Garimella R, Tadikonda P, Tawfik O, Gunewardena S, Rowe P, Van Veldhuizen P. Vitamin D Impacts the Expression of Runx2 Target Genes and Modulates Inflammation, Oxidative Stress and Membrane Vesicle Biogenesis Gene Networks in 143B Osteosarcoma Cells. Int J Mol Sci 2017; 18:ijms18030642. [PMID: 28300755 PMCID: PMC5372654 DOI: 10.3390/ijms18030642] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 02/14/2017] [Accepted: 02/15/2017] [Indexed: 12/15/2022] Open
Abstract
Osteosarcoma (OS) is an aggressive malignancy of bone affecting children, adolescents and young adults. Understanding vitamin D metabolism and vitamin D regulated genes in OS is an important aspect of vitamin D/cancer paradigm, and in evaluating vitamin D as adjuvant therapy for human OS. Vitamin D treatment of 143B OS cells induced significant and novel changes in the expression of genes that regulate: (a) inflammation and immunity; (b) formation of reactive oxygen species, metabolism of cyclic nucleotides, sterols, vitamins and mineral (calcium), quantity of gap junctions and skeletogenesis; (c) bone mineral density; and (d) cell viability of skeletal cells, aggregation of bone cancer cells and exocytosis of secretory vesicles. Ingenuity pathway analysis revealed significant reduction in Runx2 target genes such as fibroblast growth factor -1, -12 (FGF1 and FGF12), bone morphogenetic factor-1 (BMP1), SWI/SNF related, matrix associated actin dependent regulator of chromatin subfamily a, member 4 (SMARCA4), Matrix extracellular phosphoglycoprotein (MEPE), Integrin, β4 (ITGBP4), Matrix Metalloproteinase -1, -28 (MMP1 and MMP28), and signal transducer and activator of transcription-4 (STAT4) in vitamin D treated 143B OS cells. These genes interact with the inflammation, oxidative stress and membrane vesicle biogenesis gene networks. Vitamin D not only inhibited the expression of Runx2 target genes MMP1, MMP28 and kallikrein related peptidase-7 (KLK7), but also migration and invasion of 143B OS cells. Vitamin D regulated Runx2 target genes or their products represent potential therapeutic targets and laboratory biomarkers for applications in translational oncology.
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Affiliation(s)
- Rama Garimella
- Division of Medical Clinical Oncology, The University of Kansas Medical Center, Kansas City, KS 66160, USA.
- Departments of Internal Medicine, The University of Kansas Medical Center, Kansas City, KS 66160, USA.
- Orthopedic Surgery, The University of Kansas Medical Center, Kansas City, KS 66160, USA.
- Dietetics and Nutrition, The University of Kansas Medical Center, Kansas City, KS 66160, USA.
- Midwest Biomedical Research Foundation-KCVAMC Affiliate, Kansas City, KS 64128, USA.
- Hematology and Oncology, Kansas City Veterans Affairs Medical Center, Kansas City, MO 64128, USA.
- School of Dentistry, University of Missouri-Kansas City, Kansas City, MO 64108, USA.
| | - Priyanka Tadikonda
- Dietetics and Nutrition, The University of Kansas Medical Center, Kansas City, KS 66160, USA.
| | - Ossama Tawfik
- Pathology and Laboratory Medicine, The University of Kansas Medical Center, Kansas City, KS 66160, USA.
| | - Sumedha Gunewardena
- Molecular and Integrative Physiology, The University of Kansas Medical Center, Kansas City, KS 66160, USA.
| | - Peter Rowe
- Departments of Internal Medicine, The University of Kansas Medical Center, Kansas City, KS 66160, USA.
- Kidney Institute, The University of Kansas Medical Center, Kansas City, KS 66160, USA.
| | - Peter Van Veldhuizen
- Division of Medical Clinical Oncology, The University of Kansas Medical Center, Kansas City, KS 66160, USA.
- Departments of Internal Medicine, The University of Kansas Medical Center, Kansas City, KS 66160, USA.
- Sarah Cannon HCA Midwest Health Cancer Network, Overland Park, KS 66209, USA.
- Hematology and Oncology, Kansas City Veterans Affairs Medical Center, Kansas City, MO 64128, USA.
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6
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Muir AM, Massoudi D, Nguyen N, Keene DR, Lee SJ, Birk DE, Davidson JM, Marinkovich MP, Greenspan DS. BMP1-like proteinases are essential to the structure and wound healing of skin. Matrix Biol 2016; 56:114-131. [PMID: 27363389 DOI: 10.1016/j.matbio.2016.06.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [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: 03/25/2016] [Revised: 06/12/2016] [Accepted: 06/21/2016] [Indexed: 01/10/2023]
Abstract
Closely related extracellular metalloproteinases bone morphogenetic protein 1 (BMP1) and mammalian Tolloid-like 1 (mTLL1) are co-expressed in various tissues and have been suggested to have overlapping roles in the biosynthetic processing of extracellular matrix components. Early lethality of mice null for the BMP1 gene Bmp1 or the mTLL1 gene Tll1 has impaired in vivo studies of these proteinases. To overcome issues of early lethality and functional redundancy we developed the novel BTKO mouse strain, with floxed Bmp1 and Tll1 alleles, for induction of postnatal, simultaneous ablation of the two genes. We previously showed these mice to have a skeletal phenotype that includes elements of osteogenesis imperfecta (OI), osteomalacia, and deficient osteocyte maturation, observations validated by the finding of BMP1 mutations in a subset of human patients with OI-like phenotypes. However, the roles of BMP1-like proteinase in non-skeletal tissues have yet to be explored, despite the supposed importance of putative substrates of these proteinases in such tissues. Here, we employ BTKO mice to investigate potential roles for these proteinases in skin. Loss of BMP1-like proteinase activity is shown to result in markedly thinned and fragile skin with unusually densely packed collagen fibrils and delayed wound healing. We demonstrate deficits in the processing of collagens I and III, decorin, biglycan, and laminin 332 in skin, which indicate mechanisms whereby BMP1-like proteinases affect the biology of this tissue. In contrast, lack of effects on collagen VII processing or deposition indicates this putative substrate to be biosynthetically processed by non-BMP1-like proteinases.
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Affiliation(s)
- Alison M Muir
- Department of Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - Dawiyat Massoudi
- Department of Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - Ngon Nguyen
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA, 94305, USA; Dermatology, VA Medical Center, Palo Alto, CA 94304, USA
| | - Douglas R Keene
- Microimaging Center, Shriners Hospitals for Children, Portland, OR 97239, USA
| | - Se-Jin Lee
- Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - David E Birk
- Department of Molecular Pharmacology & Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
| | - Jeffrey M Davidson
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University, Nashville, TN 37232, USA; Research Service, Veterans Affairs Tennessee Valley Healthcare System, Nashville, TN 37212, USA
| | - M Peter Marinkovich
- Program in Epithelial Biology and Department of Dermatology, Stanford University School of Medicine, Stanford, CA, 94305, USA; Dermatology, VA Medical Center, Palo Alto, CA 94304, USA
| | - Daniel S Greenspan
- Department of Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA.
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7
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Yuan YP, Huang K, Xu YM, Chen XC, Li HH, Cai BZ, Liu Y, Zhang H, Li Y, Lin CM. Canonical and non-canonical Wnt signaling control the regeneration of amputated rodent vibrissae follicles. J Mol Histol 2016; 47:1-8. [PMID: 26742765 DOI: 10.1007/s10735-015-9648-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 12/16/2015] [Indexed: 02/08/2023]
Abstract
Although mammals are notoriously poor at regeneration compared with many lower-order species, the hair follicle, particular to mammals, is capable of regeneration following partial amputation. The detailed internal mechanism of this phenomenon is still unclear. Development and regrowth of the hair follicle depends on dermal-epidermal interaction within the hair follicle. Previous studies have shown that Wnt/β-catenin, Shh, Bmp, PDGF, TGF and Notch signals all take part in the development and growth of the hair follicle, and the Wnt/β-catenin signaling additionally plays an indispensable role in hair follicle morphogenesis and regrowth. In this study, we investigated the localization, as well as, protein levels of Wnt/β-catenin signaling molecules during amputated whisker follicle regeneration.
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Affiliation(s)
- Yan-Ping Yuan
- Department of Histology and Embryology, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, Guangdong Province, People's Republic of China
| | - Keng Huang
- Department of Histology and Embryology, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, Guangdong Province, People's Republic of China
| | - Yan-Min Xu
- Department of Cell Biology, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, Guangdong Province, People's Republic of China
| | - Xian-Cai Chen
- Department of Histology and Embryology, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, Guangdong Province, People's Republic of China
| | - Hai-Hong Li
- Emergency Department, The Second Affiliated Hospital, Shantou University Medical College, North Dongxia Road, Shantou, 515041, Guangdong Province, People's Republic of China
| | - Bo-Zhi Cai
- Department of Cell Biology, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, Guangdong Province, People's Republic of China
| | - Yang Liu
- Department of Histology and Embryology, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, Guangdong Province, People's Republic of China
| | - Huan Zhang
- Department of Histology and Embryology, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, Guangdong Province, People's Republic of China
| | - Yu Li
- Tissue Engineering Laboratory, First Affiliated Hospital, Shantou University Medical College, No. 57 Changping Road, Shantou, 515041, Guangdong Province, People's Republic of China
| | - Chang-Min Lin
- Department of Histology and Embryology, Shantou University Medical College, No. 22 Xinling Road, Shantou, 515041, Guangdong Province, People's Republic of China.
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8
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Shang X, Luo Z, Wang X, Jaeblon T, Marymont JV, Dong Y. Deletion of RBPJK in Mesenchymal Stem Cells Enhances Osteogenic Activity by Up-Regulation of BMP Signaling. PLoS One 2015; 10:e0135971. [PMID: 26285013 PMCID: PMC4540435 DOI: 10.1371/journal.pone.0135971] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 07/28/2015] [Indexed: 11/18/2022] Open
Abstract
Recently we have demonstrated the importance of RBPjk-dependent Notch signaling in the regulation of mesenchymal stem cell (MSC) differentiation during skeletogenesis both in vivo and in vitro. Here we further performed RBPJK loss-of-function experiments to demonstrate for the first time that RBPJK deficient MSC shows enhanced differentiation and osteogenesis acts via up-regulation of the BMP signaling. In the present study, we first compared the spontaneous and osteogenic differentiation in normal and recombination signal binding protein for immunoglobulin kappa J region (RBPJK) deficient human bone marrow-derived mesenchymal stem cells (MSCs). It was found that RBPJK highly expressed in fresh isolated MSCs and its expression was progressing down-regulated during spontaneous differentiation and even greater in osteogenic media inducted differentiation. Deletion of RBPJK in MSCs not only enhances cell spontaneous differentiation, but also significantly accelerates condition media inducted osteogenic differentiation by showing enhanced alkaline phosphatase (ALP) activity, Alizarin red staining, gene expression of Runx2, Osteopontin (OPN), Type I collagen (COL1a1) in culture. Additionally, BMP signaling responsive reporter activity and phosphor-smad1/5/8 expression were also significantly increased upon removal of RBPJK in MSCs. These data proved that inhibition of Notch signaling in MSCs promotes cell osteogenic differentiation by up-regulation of BMP signaling, and RBPJK deficient MSC maybe a better cell population for cell-based bone tissue engineering.
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Affiliation(s)
- Xifu Shang
- Department of Orthopaedic Surgery, Anhui Provincial Hospital, Hefei, Anhui, China
| | - Zhengliang Luo
- Department of Orthopaedic Surgery, Anhui Provincial Hospital, Hefei, Anhui, China
| | - Xudong Wang
- Department of Oral and Craniomaxillofacial Surgery, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Todd Jaeblon
- Department of Orthopaedic Surgery, Louisiana State University Health Sciences Center, Shreveport, LA, United States of America
| | - John V. Marymont
- Department of Orthopaedic Surgery, Louisiana State University Health Sciences Center, Shreveport, LA, United States of America
| | - Yufeng Dong
- Department of Orthopaedic Surgery, Louisiana State University Health Sciences Center, Shreveport, LA, United States of America
- * E-mail:
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9
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Wein M, Fretwurst T, Nahles S, Duttenhoefer F, Tomakidi P, Steinberg T, Nelson K. Pilot investigation of the molecular discrimination of human osteoblasts from different bone entities. J Craniomaxillofac Surg 2015; 43:1487-93. [PMID: 26315276 DOI: 10.1016/j.jcms.2015.07.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 07/13/2015] [Accepted: 07/27/2015] [Indexed: 12/24/2022] Open
Abstract
In oral and maxillofacial surgery, autologous grafts from the iliac crest remain the 'gold standard' for alveolar ridge reconstruction, whereas intraoral bone grafts are considered in smaller defects. To date, a comparison of the osteogenic potential of osteoblasts with regard to their tissue origin is missing. Primary osteoblasts have proven useful for the investigation of the tissue-specific osteogenic properties. The present study compares primary human alveolar (aHOBs) and iliac osteoblasts (iHOBs) derived from three female patients undergoing routine intraoral bone grafting. Proliferation potential of the osteoblasts was evaluated using real-time impedance monitoring. Relative gene expression of bone specific biomarkers was analyzed and quantified using quantitative polymerase chain reactions (qPCR). Immunohistochemistry and phase contrast microscopy were performed, as well as alkaline phosphatase assay and alizarin red staining to visualize morphology and mineralization capacity. A twofold faster proliferation rate of aHOBs compared with iHOBs (130 h vs. 80 h) was observed. Alkaline phosphatase activity and alizarin red staining in both HOBs indicated similar mineralization capacity. Gene expression of seven genes (BMP1, CSF-1, TGFBR1, ICAM1, VCAM1, SPP1 and DLX5) was significantly higher in iHOB than in aHOB samples. These data suggest a higher osteogenic potential of osteoblasts derived from the iliac crest compared with primary osteoblasts from the alveolar bone and may lead to a better understanding of the molecular impact of bone cells from different bone entities on bone regeneration in alveolar ridge reconstructions.
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Affiliation(s)
- Martin Wein
- Department of Oral Biotechnology, University Medical Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany; Faculty of Biology, University of Freiburg, Schaenzlestraße 1, 79104 Freiburg, Germany.
| | - Tobias Fretwurst
- Department of Oral and Maxillofacial Surgery, University Medical Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Susanne Nahles
- Department of Oral- and Maxillofacial Surgery, Charité Campus Virchow, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Fabian Duttenhoefer
- Department of Oral and Maxillofacial Surgery, University Medical Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Pascal Tomakidi
- Department of Oral Biotechnology, University Medical Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Thorsten Steinberg
- Department of Oral Biotechnology, University Medical Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
| | - Katja Nelson
- Department of Oral and Maxillofacial Surgery, University Medical Center Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany
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da Silva R, Uno M, Marie SKN, Oba-Shinjo SM. LOX expression and functional analysis in astrocytomas and impact of IDH1 mutation. PLoS One 2015; 10:e0119781. [PMID: 25790191 PMCID: PMC4366168 DOI: 10.1371/journal.pone.0119781] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Accepted: 01/16/2015] [Indexed: 12/19/2022] Open
Abstract
Lysyl oxidase (LOX) is involved in vital biological processes such as cell motility, cell signaling and gene regulation. Deregulation of this protein can contribute to tumor formation and progression. Although it is known that LOX is involved in invasion, proliferation and tumor migration in other types of tumors, studies of LOX in astrocytomas of different grades are scarce. The purpose of our study was to characterize LOX, BMP1 and HIF1A expression by real-time PCR in astrocytomas with WHO grades I to IV compared to non-neoplastic brain tissue. IDH1 mutational status was determined by PCR and sequencing. LOX protein expression was also analyzed by immunohistochemistry. LOX functional analyses were performed using siRNA knockdown and the specific inhibitor BAPN in two glioblastoma cell lines. The expression levels of LOX, BMP1 and HIF1A were correlated and analyzed according to IDH1 mutation status and to the clinical end-point of overall survival of glioblastoma patients. The results demonstrate that increased expression and activity of LOX, BMP1 and HIF1A were positively correlated with the malignant grade of astrocytomas. LOX protein expression also increased according to the degree of malignancy, with localization in the cytoplasm and nucleus and staining observed in endothelial cells. Glioblastoma with a mutation in IDH1 expressed lower levels of LOX in the nucleus, and IDH1-mutated cases showed lower LOX expression levels when compared to wild-type IDH1 cases. LOX knockdown and inhibition by BAPN in U87MG and A172 cell lines affected migration, invasion and soft agar colony formation. Taken together, these results corroborate the role of LOX in the migration, invasion and angiogenesis of astrocytomas. Furthermore, LOX expression is influenced by IDH1 mutational status. This work provides new insights for researchers aiming to design targeted therapies to control astrocytomas.
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Affiliation(s)
- Roseli da Silva
- Laboratory of Molecular and Cellular Biology, Department of Neurology, Faculdade de Medicina da Universidade de São Paulo, São Paulo, 01246-903, Brazil
- * E-mail:
| | - Miyuki Uno
- Center of Translational Research in Oncology, Instituto do Câncer do Estado de São Paulo (ICESP), 01246-000, São Paulo, Brazil
| | - Suely K. Nagahashi Marie
- Laboratory of Molecular and Cellular Biology, Department of Neurology, Faculdade de Medicina da Universidade de São Paulo, São Paulo, 01246-903, Brazil
- Center for Studies of Cellular and Molecular Therapy (NETCEM), University of São Paulo, São Paulo, Brazil
| | - Sueli M. Oba-Shinjo
- Laboratory of Molecular and Cellular Biology, Department of Neurology, Faculdade de Medicina da Universidade de São Paulo, São Paulo, 01246-903, Brazil
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11
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Boyle M, Chun C, Strojny C, Narayanan R, Bartholomew A, Sundivakkam P, Alapati S. Chronic inflammation and angiogenic signaling axis impairs differentiation of dental-pulp stem cells. PLoS One 2014; 9:e113419. [PMID: 25427002 PMCID: PMC4245135 DOI: 10.1371/journal.pone.0113419] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 10/28/2014] [Indexed: 01/01/2023] Open
Abstract
Dental-pulp tissue is often exposed to inflammatory injury. Sequested growth factors or angiogenic signaling proteins that are released following inflammatory injury play a pivotal role in the formation of reparative dentin. While limited or moderate angiogenesis may be helpful for dental pulp maintenance, the induction of significant level of angiogenesis is probably highly detrimental. Hitherto, several studies have addressed the effects of proinflammatory stimuli on the survival and differentiation of dental-pulp stem cells (DPSC), in vitro. However, the mechanisms communal to the inflammatory and angiogenic signaling involved in DPSC survival and differentiation remain unknown. Our studies observed that short-term exposure to TNF-α (6 and 12 hours [hrs]) induced apoptosis with an upregulation of VEGF expression and NF-κB signaling. However, long-term (chronic) exposure (14 days) to TNF-α resulted in an increased proliferation with a concomitant shortening of the telomere length. Interestingly, DPSC pretreated with Nemo binding domain (NBD) peptide (a cell permeable NF-κB inhibitor) significantly ameliorated TNF-α- and/or VEGF-induced proliferation and the shortening of telomere length. NBD peptide pretreatment significantly improved TNF-α-induced downregulation of proteins essential for differentiation, such as bone morphogenic proteins (BMP)-1 & 2, BMP receptor isoforms-1&2, trasnforming growth factor (TGF), osteoactivin and osteocalcin. Additionally, inhibition of NF-κB signaling markedly increased the mineralization potential, a process abrogated by chronic exposure to TNF-α. Thus, our studies demonstrated that chronic inflammation mediates telomere shortening via NF-κB signaling in human DPSC. Resultant chromosomal instability leads to an emergence of increased proliferation of DPSC, while negatively regulating the differentiation of DPSC, in vitro.
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Affiliation(s)
- Michael Boyle
- Department of Endodontics, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Crystal Chun
- Department of Endodontics, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Chelsee Strojny
- Department of Endodontics, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Raghuvaran Narayanan
- Department of Endodontics, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Amelia Bartholomew
- Department of Surgery, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, United States of America
| | - Premanand Sundivakkam
- Department of Endodontics, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, United States of America
- Department of Surgery, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, United States of America
- * E-mail: (PS); (SA)
| | - Satish Alapati
- Department of Endodontics, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, United States of America
- * E-mail: (PS); (SA)
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Abstract
PURPOSE OF REVIEW Osteogenesis imperfecta or 'brittle bone disease' has mainly been considered a bone disorder caused by collagen mutations. Within the last decade, however, a surge of genetic discoveries has created a new paradigm for osteogenesis imperfecta as a collagen-related disorder, where most cases are due to autosomal dominant type I collagen defects, while rare, mostly recessive, forms are due to defects in genes whose protein products interact with collagen protein. This review is both timely and relevant in outlining the genesis, development, and future of this paradigm shift in the understanding of osteogenesis imperfecta. RECENT FINDINGS Bone-restricted interferon-induced transmembrane (IFITM)-like protein (BRIL) and pigment epithelium-derived factor (PEDF) defects cause types V and VI osteogenesis imperfecta via defective bone mineralization, while defects in cartilage-associated protein (CRTAP), prolyl 3-hydroxylase 1 (P3H1), and cyclophilin B (CYPB) cause types VII-IX osteogenesis imperfecta via defective collagen post-translational modification. Heat shock protein 47 (HSP47) and FK506-binding protein-65 (FKBP65) defects cause types X and XI osteogenesis imperfecta via aberrant collagen crosslinking, folding, and chaperoning, while defects in SP7 transcription factor, wingless-type MMTV integration site family member 1 (WNT1), trimeric intracellular cation channel type b (TRIC-B), and old astrocyte specifically induced substance (OASIS) disrupt osteoblast development. Finally, absence of the type I collagen C-propeptidase bone morphogenetic protein 1 (BMP1) causes type XII osteogenesis imperfecta due to altered collagen maturation/processing. SUMMARY Identification of these multiple causative defects has provided crucial information for accurate genetic counseling, inspired a recently proposed functional grouping of osteogenesis imperfecta types by shared mechanism to simplify current nosology, and has prodded investigations into common pathways in osteogenesis imperfecta. Such investigations could yield critical information on cellular and bone tissue mechanisms and translate to new mechanistic insight into clinical therapies for patients.
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Affiliation(s)
- Joan C. Marini
- Bone and Extracellular Matrix Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892
| | - Adi Reich
- Bone and Extracellular Matrix Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892
| | - Simone M. Smith
- Bone and Extracellular Matrix Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892
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Hoyer-Kuhn H, Semler O, Schoenau E, Roschger P, Klaushofer K, Rauch F. Hyperosteoidosis and hypermineralization in the same bone: bone tissue analyses in a boy with a homozygous BMP1 mutation. Calcif Tissue Int 2013; 93:565-70. [PMID: 24091809 DOI: 10.1007/s00223-013-9799-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Accepted: 09/10/2013] [Indexed: 10/26/2022]
Abstract
Recently, homozygous mutations in BMP1 were identified as a cause of bone fragility in children with high areal bone mineral density. We examined iliac bone tissue from a 12-year-old boy with a homozygous mutation that leads to a p.Gly12Arg change in the signal peptide of BMP1, an enzyme that cleaves C-propeptide off the procollagen type I molecule. Histomorphometric analyses revealed marked hyperosteoidosis, with osteoid volume per bone volume at approximately 11 SD above the mean value for controls. At the same time, quantitative backscattered electron imaging showed drastic hypermineralization of mineralized bone matrix. CaPeak, representing the most frequently observed calcium content of mineralized matrix in trabecular bone, was 9 SD above the mean for the control population, corresponding to a 21 % higher calcium content in the patient specimen than in the average control sample. These results are similar to those that were previously reported in an individual who had a mutation in the C-propeptide cleavage site of procollagen type I. It thus appears that disturbed C-propeptide cleavage impairs mineralization in two ways: first, the onset of mineralization is delayed, leading to an increased amount of unmineralized osteoid, and second, once mineralization starts, too much mineral is incorporated into the bone matrix, resulting in hypermineralization.
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Affiliation(s)
- Heike Hoyer-Kuhn
- Department of Pediatrics and Adolescent Medicine, University Hospital Cologne, Kerpenerstr. 62, 50924, Cologne, Germany,
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14
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Abstract
Osteogenesis imperfecta (OI) is a heritable bone dysplasia characterized by bone fragility and deformity and growth deficiency. Most cases of OI (classical types) have autosomal dominant inheritance and are caused by mutations in the type I collagen genes. During the past several years, a number of noncollagenous genes whose protein products interact with collagen have been identified as the cause(s) of rare forms of OI. This has led to a paradigm shift for OI as a collagen-related condition. The majority of the non-classical OI types have autosomal recessive inheritance and null mutations in their respective genes. The exception is a unique dominant defect in IFITM5, which encodes Bril and leads to hypertrophic callus and interosseous membrane ossification. Three recessive OI types arise from defects in any of the components of the collagen prolyl 3-hydroxylation complex (CRTAP, P3H1, CyPB), which modifies the collagen α1(I)Pro986 residue. Complex dysfunction leads to delayed folding of the procollagen triple helix and increased helical modification. Next, defects in collagen chaperones, HSP47 and FKBP65, lead to improper procollagen folding and deficient collagen cross-linking in matrix, respectively. A form of OI with a mineralization defect is caused by mutations in SERPINF1, whose protein product, PEDF, is a well-known antiangiogenesis factor. Defects in the C-propeptide cleavage enzyme, BMP1, also cause recessive OI. Additional genes, including SP7 and TMEM38B, have been implicated in recessive OI but are as yet unclassified. Elucidating the mechanistic pathways common to dominant and recessive OI may lead to novel therapeutic approaches to improve clinical manifestations.
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Affiliation(s)
- Joan C Marini
- Bone and Extracellular Matrix Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892, USA.
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15
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Borra VM, Waterval JJ, Stokroos RJ, Manni JJ, Van Hul W. Localization of the gene for hyperostosis cranialis interna to chromosome 8p21 with analysis of three candidate genes. Calcif Tissue Int 2013; 93:93-100. [PMID: 23640157 DOI: 10.1007/s00223-013-9732-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2013] [Accepted: 03/27/2013] [Indexed: 01/05/2023]
Abstract
Hyperostosis cranialis interna (HCI) is a rare autosomal dominant disorder characterized by intracranial hyperostosis and osteosclerosis, which is confined to the skull, especially the calvarium and the skull base. The rest of the skeleton is not affected. Progressive bone overgrowth causes nerve entrapment that leads to recurrent facial nerve palsy, disturbance of the sense of smell, hearing and vision impairments, impairment of facial sensibility, and disturbance of balance due to vestibular areflexia. The treatment is symptomatic. Histomorphological investigations showed increased bone formation with a normal tissue structure. Biochemical parameters were normal. Until today the disease has been described in only three related Dutch families with common progenitors and which consist of 32 individuals over five generations. HCI was observed in 12 family members over four generations. Patients are mildly to severely affected. Besides HCI, several bone dysplasias with hyperostosis and sclerosis of the craniofacial bones are known. Examples are Van Buchem disease, sclerosteosis, craniometaphyseal dysplasia, and Camurati-Engelmann disease. However, in these cases the long bones are affected as well. Linkage analysis in a family with HCI resulted in the localization of the disease-causing gene to a region on chromosome 8p21 delineated by markers D8S282 and D8S382. Interesting candidate genes in this region are BMP1, LOXL2, and ADAM28. Sequence analysis of these genes did not reveal any putative mutations. This suggests that a gene not previously involved in a sclerosing bone dysplasia is responsible for the abnormal growth in the skull of these patients.
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Affiliation(s)
- V M Borra
- Department of Medical Genetics, University of Antwerp, Prins Boudewijnlaan 43, Edegem, 2650, Antwerp, Belgium.
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16
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Galicka A. [Mutations of noncollagen genes in osteogenesis imperfecta--implications of the gene products in collagen biosynthesis and pathogenesis of disease]. POSTEP HIG MED DOSW 2012; 66:359-71. [PMID: 22706122 DOI: 10.5604/17322693.1000336] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Recent investigations revealed that the "brittle bone" phenotype in osteogenesis imperfecta (OI) is caused not only by dominant mutations in collagen type I genes, but also by recessively inherited mutations in genes responsible for the post-translational processing of type I procollagen as well as for bone formation. The phenotype of patients with mutations in noncollagen genes overlaps with very severe type III and lethal type II OI caused by mutations in collagen genes. Mutations in genes that encode proteins involved in collagen prolyl 3-hydroxylation (P3H1/CRTAP/CyPB) eliminated Pro986 hydroxylation and caused an increase in modification of collagen helix by prolyl 4-hydroxylase and lysyl hydroxylase. However, the importance of these disturbances in the disease pathomechanism is not known. Loss of complex proteins' function as collagen chaperones may dominate the disease mechanism. The latest findings added to the spectrum of OI-causing and collagen-influencing factors other chaperones (HSP47 and FKBP65) and protein BMP-1, which emphasizes the complexity of collagen folding and secretion as well as their importance in bone formation. Furthermore, mutations in genes encoding transcription factor SP7/Osterix and pigment epithelium-derived factor (PEDF) constitute a novel mechanism for OI, which is independent of changes in biosynthesis and processing of collagen.
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Affiliation(s)
- Anna Galicka
- Zakład Chemii Medycznej, Uniwersytet Medyczny w Białymstok.
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17
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Asharani PV, Keupp K, Semler O, Wang W, Li Y, Thiele H, Yigit G, Pohl E, Becker J, Frommolt P, Sonntag C, Altmüller J, Zimmermann K, Greenspan DS, Akarsu NA, Netzer C, Schönau E, Wirth R, Hammerschmidt M, Nürnberg P, Wollnik B, Carney TJ. Attenuated BMP1 function compromises osteogenesis, leading to bone fragility in humans and zebrafish. Am J Hum Genet 2012; 90:661-74. [PMID: 22482805 DOI: 10.1016/j.ajhg.2012.02.026] [Citation(s) in RCA: 172] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Revised: 01/23/2012] [Accepted: 02/24/2012] [Indexed: 12/19/2022] Open
Abstract
Bone morphogenetic protein 1 (BMP1) is an astacin metalloprotease with important cellular functions and diverse substrates, including extracellular-matrix proteins and antagonists of some TGFβ superfamily members. Combining whole-exome sequencing and filtering for homozygous stretches of identified variants, we found a homozygous causative BMP1 mutation, c.34G>C, in a consanguineous family affected by increased bone mineral density and multiple recurrent fractures. The mutation is located within the BMP1 signal peptide and leads to impaired secretion and an alteration in posttranslational modification. We also characterize a zebrafish bone mutant harboring lesions in bmp1a, demonstrating conservation of BMP1 function in osteogenesis across species. Genetic, biochemical, and histological analyses of this mutant and a comparison to a second, similar locus reveal that Bmp1a is critically required for mature-collagen generation, downstream of osteoblast maturation, in bone. We thus define the molecular and cellular bases of BMP1-dependent osteogenesis and show the importance of this protein for bone formation and stability.
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Affiliation(s)
- P V Asharani
- Institute of Molecular and Cell Biology, Proteos, Singapore, Singapore
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18
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Vadon-Le Goff S, Kronenberg D, Bourhis JM, Bijakowski C, Raynal N, Ruggiero F, Farndale RW, Stöcker W, Hulmes DJS, Moali C. Procollagen C-proteinase enhancer stimulates procollagen processing by binding to the C-propeptide region only. J Biol Chem 2011; 286:38932-8. [PMID: 21940633 PMCID: PMC3234718 DOI: 10.1074/jbc.m111.274944] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [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: 06/22/2011] [Revised: 08/29/2011] [Indexed: 01/06/2023] Open
Abstract
Bone morphogenetic protein-1 (BMP-1) and the tolloid-like metalloproteinases control several aspects of embryonic development and tissue repair. Unlike other proteinases whose activities are regulated mainly by endogenous inhibitors, regulation of BMP-1/tolloid-like proteinases relies mostly on proteins that stimulate activity. Among these, procollagen C-proteinase enhancers (PCPEs) markedly increase BMP-1/tolloid-like proteinase activity on fibrillar procollagens, in a substrate-specific manner. Here, we performed a detailed quantitative study of the binding of PCPE-1 and of its minimal active fragment (CUB1-CUB2) to three regions of the procollagen III molecule: the triple helix, the C-telopeptide, and the C-propeptide. Contrary to results described elsewhere, we found the PCPE-1-binding sites to be located exclusively in the C-propeptide region. In addition, binding and enhancing activities were found to be independent of the glycosylation state of the C-propeptide. These data exclude previously proposed mechanisms for the action of PCPEs and also suggest new mechanisms to explain how these proteins can stimulate BMP-1/tolloid-like proteinases by up to 20-fold.
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Affiliation(s)
- Sandrine Vadon-Le Goff
- From the Institut de Biologie et Chimie des Protéines, CNRS/Université Lyon 1 FRE3310, 69367 Lyon Cedex 7, France
| | - Daniel Kronenberg
- From the Institut de Biologie et Chimie des Protéines, CNRS/Université Lyon 1 FRE3310, 69367 Lyon Cedex 7, France
- the Institute of Zoology, Department of Cell and Matrix Biology, Johannes Gutenberg University, 55128 Mainz, Germany
| | - Jean-Marie Bourhis
- From the Institut de Biologie et Chimie des Protéines, CNRS/Université Lyon 1 FRE3310, 69367 Lyon Cedex 7, France
| | - Cécile Bijakowski
- From the Institut de Biologie et Chimie des Protéines, CNRS/Université Lyon 1 FRE3310, 69367 Lyon Cedex 7, France
| | - Nicolas Raynal
- the Department of Biochemistry, University of Cambridge, Cambridge CB2 1QW, United Kingdom, and
| | - Florence Ruggiero
- the Institut de Génomique Fonctionnelle de Lyon, ENS de Lyon, UMR CNRS 5242, Université Lyon 1, 69364 Lyon cedex 7, France
| | - Richard W. Farndale
- the Department of Biochemistry, University of Cambridge, Cambridge CB2 1QW, United Kingdom, and
| | - Walter Stöcker
- the Institute of Zoology, Department of Cell and Matrix Biology, Johannes Gutenberg University, 55128 Mainz, Germany
| | - David J. S. Hulmes
- From the Institut de Biologie et Chimie des Protéines, CNRS/Université Lyon 1 FRE3310, 69367 Lyon Cedex 7, France
| | - Catherine Moali
- From the Institut de Biologie et Chimie des Protéines, CNRS/Université Lyon 1 FRE3310, 69367 Lyon Cedex 7, France
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19
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Rainger J, van Beusekom E, Ramsay JK, McKie L, Al-Gazali L, Pallotta R, Saponari A, Branney P, Fisher M, Morrison H, Bicknell L, Gautier P, Perry P, Sokhi K, Sexton D, Bardakjian TM, Schneider AS, Elcioglu N, Ozkinay F, Koenig R, Mégarbané A, Semerci CN, Khan A, Zafar S, Hennekam R, Sousa SB, Ramos L, Garavelli L, Furga AS, Wischmeijer A, Jackson IJ, Gillessen-Kaesbach G, Brunner HG, Wieczorek D, van Bokhoven H, FitzPatrick DR. Loss of the BMP antagonist, SMOC-1, causes Ophthalmo-acromelic (Waardenburg Anophthalmia) syndrome in humans and mice. PLoS Genet 2011; 7:e1002114. [PMID: 21750680 PMCID: PMC3131273 DOI: 10.1371/journal.pgen.1002114] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Accepted: 04/15/2011] [Indexed: 01/23/2023] Open
Abstract
Ophthalmo-acromelic syndrome (OAS), also known as Waardenburg Anophthalmia syndrome, is defined by the combination of eye malformations, most commonly bilateral anophthalmia, with post-axial oligosyndactyly. Homozygosity mapping and subsequent targeted mutation analysis of a locus on 14q24.2 identified homozygous mutations in SMOC1 (SPARC-related modular calcium binding 1) in eight unrelated families. Four of these mutations are nonsense, two frame-shift, and two missense. The missense mutations are both in the second Thyroglobulin Type-1 (Tg1) domain of the protein. The orthologous gene in the mouse, Smoc1, shows site- and stage-specific expression during eye, limb, craniofacial, and somite development. We also report a targeted pre-conditional gene-trap mutation of Smoc1 (Smoc1tm1a) that reduces mRNA to ∼10% of wild-type levels. This gene-trap results in highly penetrant hindlimb post-axial oligosyndactyly in homozygous mutant animals (Smoc1tm1a/tm1a). Eye malformations, most commonly coloboma, and cleft palate occur in a significant proportion of Smoc1tm1a/tm1a embryos and pups. Thus partial loss of Smoc-1 results in a convincing phenocopy of the human disease. SMOC-1 is one of the two mammalian paralogs of Drosophila Pentagone, an inhibitor of decapentaplegic. The orthologous gene in Xenopus laevis, Smoc-1, also functions as a Bone Morphogenic Protein (BMP) antagonist in early embryogenesis. Loss of BMP antagonism during mammalian development provides a plausible explanation for both the limb and eye phenotype in humans and mice. Ophthalmo-acromelic syndrome (OAS) is a rare congenital genetic disorder involving complete absence of the eyes and limb malformations, with missing or fused bones in the feet and hands. In this paper we report the identification of genetic changes to both copies of the SMOC1 gene as the cause of most cases of OAS. We have identified eight different mutations in this gene in unrelated individuals, and six of these mutations are predicted to completely abolish SMOC-1 function. We have also genetically disrupted the mouse Smoc1 gene to produce only 10% of normal levels. These animals, called Smoc1tm1a/tm1a mice, have similar hindlimb malformations to those seen in the limbs of human OAS patients, resulting in missing toes in some mice and fusion of toes in others. Smoc1tm1a/tm1a embryos and pups also have eye malformations but these are milder than those seen in human cases, perhaps because, unlike the human cases, the mice still have some residual function of the gene. We suggest that the normal function of SMOC-1 may be to regulate an important class of growth factors, called Bone Morphogenetic Proteins (BMPs), which are essential for normal embryonic development.
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Affiliation(s)
- Joe Rainger
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, United Kingdom
| | - Ellen van Beusekom
- Department of Human Genetics, Institute for Genetic and Metabolic Disorders and Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Jacqueline K. Ramsay
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, United Kingdom
| | - Lisa McKie
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, United Kingdom
| | - Lihadh Al-Gazali
- Departments of Paediatrics, Faculty of Medicine and Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Rosanna Pallotta
- Regional Service for Diagnosis, Prevention, and Care of Birth Defects, Department of Medicine and Aging Sciences, Section of Preventive and Social Pediatrics, G. D'Annunzio University, Chieti, Italy
| | - Anita Saponari
- Regional Service for Diagnosis, Prevention, and Care of Birth Defects, Department of Medicine and Aging Sciences, Section of Preventive and Social Pediatrics, G. D'Annunzio University, Chieti, Italy
| | - Peter Branney
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, United Kingdom
| | - Malcolm Fisher
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, United Kingdom
| | - Harris Morrison
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, United Kingdom
| | - Louise Bicknell
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, United Kingdom
| | - Philippe Gautier
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, United Kingdom
| | - Paul Perry
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, United Kingdom
| | - Kishan Sokhi
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, United Kingdom
- Department of Orthopaedics and Trauma, University of Edinburgh, Royal Infirmary of Edinburgh, Little France, Edinburgh, United Kingdom
| | - David Sexton
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, United Kingdom
| | - Tanya M. Bardakjian
- Division of Genetics, Department of Pediatrics, Albert Einstein Medical Center, Philadelphia, Pennsylvania, United States of America
| | - Adele S. Schneider
- Division of Genetics, Department of Pediatrics, Albert Einstein Medical Center, Philadelphia, Pennsylvania, United States of America
| | - Nursel Elcioglu
- Department of Pediatric Genetics, Marmara University Hospital, Istanbul, Turkey
| | - Ferda Ozkinay
- Ege University, Medical Faculty, Department of Pediatrics, Izmir, Turkey
| | - Rainer Koenig
- Institut für Humangenetik der Johann Wolfgang Goethe Universität, Frankfurt, Germany
| | - Andre Mégarbané
- Unité de Génétique Médicale, Faculté de Médecine, Université Saint Joseph, Beirut, Lebanon
| | - C. Nur Semerci
- Department of Medical Genetics, School of Medicine, Pamukkale University, Denizli, Turkey
| | - Ayesha Khan
- Al-Shifa Trust Eye Hospital, Rawalpindi, Pakistan
| | - Saemah Zafar
- Al-Shifa Trust Eye Hospital, Rawalpindi, Pakistan
| | - Raoul Hennekam
- Department of Pediatrics and Department of Translational Genetics, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Sérgio B. Sousa
- Serviço Genética Médica, Hospital Pediátrico de Coimbra, Portugal
| | - Lina Ramos
- Serviço Genética Médica, Hospital Pediátrico de Coimbra, Portugal
| | - Livia Garavelli
- Department of Clinical Genetics, S. Maria Nuova Hospital, Reggio Emilia, Italy
| | | | - Anita Wischmeijer
- Department of Clinical Genetics, S. Maria Nuova Hospital, Reggio Emilia, Italy
| | - Ian J. Jackson
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, United Kingdom
| | | | - Han G. Brunner
- Department of Human Genetics, Institute for Genetic and Metabolic Disorders and Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
| | - Dagmar Wieczorek
- Institut für Humangenetik, Universitätsklinikum Essen, Essen, Germany
| | - Hans van Bokhoven
- Department of Human Genetics, Institute for Genetic and Metabolic Disorders and Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
- * E-mail: (DRF); (HvB)
| | - David R. FitzPatrick
- Medical Research Council Human Genetics Unit, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh, United Kingdom
- * E-mail: (DRF); (HvB)
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Bortolini MAT, Shynlova O, Drutz HP, Girão MJBC, Castro RA, Lye S, Alarab M. Expression of Bone Morphogenetic Protein-1 in vaginal tissue of women with severe pelvic organ prolapse. Am J Obstet Gynecol 2011; 204:544.e1-8. [PMID: 21397208 DOI: 10.1016/j.ajog.2011.01.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2010] [Revised: 12/30/2010] [Accepted: 01/14/2011] [Indexed: 01/04/2023]
Abstract
OBJECTIVES To analyze the differential gene and protein expression of Bone Morphogenetic Protein-1 in vaginal tissue of women with advanced pelvic organ prolapse and controls. STUDY DESIGN We sampled the anterior vaginal wall of 39 premenopausal (23 patients and 16 controls), and 18 postmenopausal women (13 patients and 5 controls) during hysterectomy. Total mRNAs and proteins were quantified by real-time RT-PCR and immunoblotting. RESULTS Bone Morphogenetic Protein-1 gene expression was decreased in pre- and postmenopausal pelvic organ prolapse patients compared with asymptomatic women (P = .01). The expression of 130 kDa, 92.5 kDa, and 82.5 kDa isoforms of Bone Morphogenetic Protein-1 were down-regulated in postmenopausal patients (P = .01), whereas the 130 kDa isoform expression was up-regulated in premenopausal patients (P = .009), when compared with respective controls. CONCLUSION The Bone Morphogenetic Protein-1 expression in human vagina was altered in patients with severe pelvic organ prolapse and influenced by menopausal status. Dysregulation of Bone Morphogenetic Protein-1 may contribute for a deficient vaginal connective tissue and support.
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Affiliation(s)
- Maria A T Bortolini
- Division of Urogynecology and Reconstructive Pelvic Surgery, Department of Obstetrics and Gynecology, Mount Sinai Hospital, University of Toronto, Canada.
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Auguściak-Duma A, Kajor M, Piwowarczyk M, Sikora J, Sieron AL. [Changes of mRNAs encoding alternatively spliced variants of procollagen C-endopeptidase in leiomyomas uteri depending on the phase of menstrual cycle and in postmenopausal women]. Ginekol Pol 2009; 80:25-32. [PMID: 19323056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
UNLABELLED Leiomyoma uteri is a monoclonal tumour of the uterus muscle layer. It is characterized by excessive, abnormal growth of extracellular matrix. The collagen types I and III are the major components of extracellular matrix. Removal of the C-propeptides in procollagens type I, II, and III by procollagen C-endopeptidase leads to spontaneous self-assembly of collagen fibrils. Thus, the procollagen C-endopeptidase is a key regulator of extracellular matrix production, its quality, and other developmental processes including angiogenesis. OBJECTIVE The objective of this study was to analyze the three alternatively spliced variants of the BMP1 gene product including the procollagen C-endopeptidase, in leiomyoma uteri tumors in comparison to normal myometrium in women being in first or second menstrual phase or in time of climacterium. MATERIAL AND METHODS In the study we analyzed samples from the control and cancerous tissues from 52 women. Expression of the three alternatively spliced variants of BMP1 gene transcript were assayed by RT-PCR, following densytometric analysis. Statistical significance (p < or = 0,05) of the observed differences was assessed with the use of Anova test, Least Significance Different Test, and Student's T-test. RESULTS Analysis of RT-PCR products revealed the presence of all alternatively spliced variants of BMP-1 mRNA and the changes in their alternative splicing intensity, depending on the phase of menstrual cycle or postmenopausal state. In the second phase of the cycle, in control tissue, the expression level of BMP-1 variant decreased when compared to women in I phase of the cycle or postmenopausal women. In the tumour, postmenopausal women showed increased expression of BMP-1at, when compared with women in the second phase of the cycle. The presence of mTLD in the tumour tissue at II phase of the cycle and in postmenopausal state was less strong when compared to women at I phase of the cycle. In control tissue this type of change was not observed. The BMP-1/HIS was present at higher level in control tissue, during II phase of the menstrual cycle and in postmenopausal state, whereas in the tumour tissue its lowest level was at II phase of the cycle. CONCLUSIONS Regulation of alternative splicing of mRNA for procollagen C-endopeptidase in leiomyomas and myometrium depends mainly on the hormonal status of women.
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