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Han Q, Koyama T, Watabe S, Ishizaki S. Functional and Structural Properties of Type V Collagen from the Skin of the Shortbill Spearfish ( Tetrapturus angustirostris). Molecules 2024; 29:2518. [PMID: 38893394 PMCID: PMC11173678 DOI: 10.3390/molecules29112518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/12/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Type V collagen is considered to be a crucial minor collagen in fish skin with unique physiological functions. In this research, the cDNAs of three procollagens (Tacol5a1, Tacol5a2, and Tacol5a3) in type V collagen were cloned from the skin of shortbill spearfish (Tetrapturus angustirostris). The open reading frames (ORFs) of Tacol5a1, Tacol5a2, and Tacol5a3 contained 5991, 4485, and 5607 bps, respectively, encoding 1997, 1495, and 1869 amino acid residues. Each of the deduced amino acid sequences of procollagens contained a signal peptide and a fibrillar collagen C-terminal domain (COLFI). A conserved thrombospondin-like N-terminal domain (TSPN) was found at the N-terminus of Tacol5a1 and 5a3 procollagens, whereas a von Willebrand factor (VWC) was found at the N-terminus of Tacol5a2 procollagen. Tacol5a1, Tacol5a2, and Tacol5a3 had their theoretical isoelectric points of 5.06, 6.75, and 5.76, respectively, and predicted molecular weights of 198,435.60, 145,058.48, and 189,171.18, respectively. The phylogenetic tree analysis revealed that Tacol5a1 of shortbill spearfish clustered with that of yellow perch (Perca flavescens) instead of broadbill swordfish (Xiphias gladius). In addition, type V collagen was extracted from the shortbill spearfish skin. The in silico method demonstrated that shortbill spearfish type V collagen has a high potential for angiotensin-converting enzyme (ACE) inhibition activity (79.50%), dipeptidyl peptidase IV inhibition (74.91%) activity, and antithrombotic activity (46.83%). The structural clarification and possible functional investigation in this study provide the foundation for the applications of exogenous type V collagen derived from fish sources.
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Affiliation(s)
- Qiuyu Han
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan; (Q.H.)
| | - Tomoyuki Koyama
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan; (Q.H.)
| | - Shugo Watabe
- School of Marine Biosciences, Kitasato University, Minami, Sagamihara 252-0373, Kanagawa, Japan
| | - Shoichiro Ishizaki
- Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato, Tokyo 108-8477, Japan; (Q.H.)
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Freire J, García-Berbel P, Caramelo B, García-Berbel L, Ovejero VJ, Cadenas N, Azueta A, Gómez-Román J. Usefulness of COL11A1 as a Prognostic Marker of Tumor Infiltration. Biomedicines 2023; 11:2496. [PMID: 37760937 PMCID: PMC10526338 DOI: 10.3390/biomedicines11092496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/14/2023] [Accepted: 08/14/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Determining the infiltration of carcinomas is essential for the proper follow-up and treatment of cancer patients. However, it continues to be a diagnostic challenge for pathologists in multiple types of tumors. In previous studies (carried out in surgical specimens), the protein COL11A1 has been postulated as an infiltration marker mainly expressed in the extracellular matrix (ECM). We hypothesized that a differential expression of COL11A1 may exist in the peritumoral stroma of tumors that have acquired infiltrating properties and that it may be detected in the small biopsies usually available in normal clinical practice. MATERIAL AND METHODS In our study, we performed immunohistochemical staining in more than 350 invasive and noninvasive small samples obtained via core needle biopsy (CNB), colonoscopy, or transurethral resection of bladder tumor (TURBT) of breast, colorectal, bladder, and ovarian cancer. RESULTS Our results revealed that COL11A1 immunostaining had a sensitivity to classify the samples into infiltrative vs. noninfiltrative tumors of 94% (breast), 97% (colorectal), >90% (bladder), and 74% (ovarian); and a specificity of 97% (breast), 100% (colorectal), and >90% (bladder). In ovarian cancer, the negative predictive value (0.59) did not present improvement over the usual histopathological markers. In all samples tested, the cumulative sensitivity was 86% and the specificity 96% (p < 0.0001). CONCLUSIONS COL11A1-positive immunostaining in small biopsies of breast, colon, bladder and ovarian cancer is an accurate predictive marker of tumor infiltration that can be easily implemented in daily clinical practice.
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Affiliation(s)
- Javier Freire
- Pathology Department, University Hospital Marques de Valdecilla, Avda. Marqués de Valdecilla s/n, 39008 Santander, Spain
| | - Pilar García-Berbel
- Pathology and Molecular Pathology Unit, IDIVAL, Avenida Cardenal Herrera Oria s/n, 39011 Santander, Spain
| | - Belén Caramelo
- Pathology and Molecular Pathology Unit, IDIVAL, Avenida Cardenal Herrera Oria s/n, 39011 Santander, Spain
| | - Lucía García-Berbel
- Breast Unit, Gynecology Department, University Hospital Puerta del Mar. Av. Ana de Viya, 21, 11009 Cádiz, Spain
| | - Victor J. Ovejero
- Surgery Department, University Hospital Marques de Valdecilla, Avda. Marqués de Valdecilla s/n, 39008 Santander, Spain
| | - Nuria Cadenas
- El Alisal Health Center, Cantabrian Health Service, C. los Ciruelos, 48, 39011 Santander, Spain
| | - Ainara Azueta
- Pathology Department, University Hospital Marques de Valdecilla, Avda. Marqués de Valdecilla s/n, 39008 Santander, Spain
| | - Javier Gómez-Román
- Pathology Department, University Hospital Marques de Valdecilla, Avda. Marqués de Valdecilla s/n, 39008 Santander, Spain
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Zheng N, Wen R, Zhou L, Meng Q, Zheng K, Li Z, Cao F, Zhang W. Multiregion single cell analysis reveals a novel subtype of cancer-associated fibroblasts located in the hypoxic tumor microenvironment in colorectal cancer. Transl Oncol 2023; 27:101570. [PMID: 36371957 PMCID: PMC9660844 DOI: 10.1016/j.tranon.2022.101570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 10/08/2022] [Accepted: 10/12/2022] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND The tumor microenvironment (TME) plays a critical role in shaping tumor progression and determining the outcome of the therapeutic response. In this study, we aimed to generate a comprehensive cellular landscape of the colorectal cancer (CRC) TME. METHODS We generated a comprehensive single-cell atlas by collecting CRC cases that have been uploaded to the online database and conducting an in-depth secondary analysis. We then carried out spatial transcriptomic sequencing and multiple immunohistochemical analyses to verify the results of the single-cell analysis. Moreover, we applied our findings to the TCGA database and used tissue microarray (TMA) on CRC tissue specimens to validate clinical prognosis. FINDINGS We re-analyzed the transcriptomes of 23785 cells, revealing a pattern of cell heterogeneity in the tumor region, leading-edge region, and non-tumor region. A subtype of COL11A1+INHBA+ tumor-resident cancer-associated fibroblasts (CAFs) was identified, and marker genes, transcription factors, and tissue-specific expression differences were noted and suggested to have potential roles in promoting cancer. We further confirmed that COL11A1+INHBA+ tumor-resident CAFs are mainly located in the hypoxic TME and we propose that they interact with CD44+ CRC cells via INHBA. Elevation of INHBA in CRC is associated with a poor prognosis. INTERPRETATION Our results demonstrated a single cell landscape of CRC in different regions and identified in hypoxic TME a special subtype of CAFs producing INHBA, which promotes CRC development and correlates with poor prognosis. This special subtype of CAFs is a candidate target for translational research.
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Affiliation(s)
- Nanxin Zheng
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Rongbo Wen
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Leqi Zhou
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Qingying Meng
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Kuo Zheng
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Zhixuan Li
- Translational Medicine Research Center, Medical Innovation Research Division and Fourth Medical Center of the Chinese PLA General Hospital, Beijing, China.
| | - Fuao Cao
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China.
| | - Wei Zhang
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China.
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Moradifard S, Minuchehr Z, Ganji SM. An investigation on the c-MYC, AXIN1, and COL11A1 gene expression in colorectal cancer. Biotechnol Appl Biochem 2021; 69:1576-1586. [PMID: 34319618 DOI: 10.1002/bab.2229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 07/20/2021] [Indexed: 11/10/2022]
Abstract
The high incidence rate of CRC demands early diagnosis of the disease and readiness of diagnostic biomarker. In present study, we have investigated c-MYC, AXIN1, and COL11A1 expression levels in course of CRC progression and their correlation with demographics and clinical risk factors. Fifty-five tumors and 41 normal tissues were obtained from Tumor Bank of Iran, total RNA was extracted, cDNA was synthesized, and RT-qPCR was performed. Results were analyzed using Rest 2009 and SPSS software. Analysis at mRNA level showed upregulation of the two genes; c-MYC with a p-value of 0.001 and COL11A1 with an observed p-value of 0.02, while a p-value of 0.04 indicated AXIN1 downregulation. The observed overexpression of COL11A1 in stage 0 compared to other stages of CRC asserts importance of this gene in CRC prognosis. Moreover, statistical analysis confirms a significant correlation between expression of these genes and several clinical risk factors of CRC. Our study supports the importance of the studied genes and provides further information regarding the molecular mechanism of CRC. Further studies on these genes could elucidate their pivotal role for both early detection and/or diagnosis of CRC in addition to have important biomarkers for CRC management available.
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Affiliation(s)
- Shirin Moradifard
- Departments of Molecular Medicine, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Zarrin Minuchehr
- Departments of Systems Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Shahla Mohammad Ganji
- Departments of Molecular Medicine, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
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Sun M, Luo EY, Adams SM, Adams T, Ye Y, Shetye SS, Soslowsky LJ, Birk DE. Collagen XI regulates the acquisition of collagen fibril structure, organization and functional properties in tendon. Matrix Biol 2020; 94:77-94. [PMID: 32950601 PMCID: PMC7722227 DOI: 10.1016/j.matbio.2020.09.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 09/14/2020] [Accepted: 09/14/2020] [Indexed: 12/31/2022]
Abstract
Collagen XI is a fibril-forming collagen that regulates collagen fibrillogenesis. Collagen XI is normally associated with collagen II-containing tissues such as cartilage, but it also is expressed broadly during development in collagen I-containing tissues, including tendons. The goals of this study are to define the roles of collagen XI in regulation of tendon fibrillar structure and the relationship to function. A conditional Col11a1-null mouse model was created to permit the spatial and temporal manipulation of Col11a1 expression. We hypothesize that collagen XI functions to regulate fibril assembly, organization and, therefore, tendon function. Previous work using cho mice with ablated Col11a1 alleles supported roles for collagen XI in tendon fibril assembly. Homozygous cho/cho mice have a perinatal lethal phenotype that limited the studies. To circumvent this, a conditional Col11a1flox/flox mouse model was created where exon 3 was flanked with loxP sites. Breeding with Scleraxis-Cre (Scx-Cre) mice yielded a tendon-specific Col11a1-null mouse line, Col11a1Δten/Δten. Col11a1flox/flox mice had no phenotype compared to wild type C57BL/6 mice and other control mice, e.g., Col11a1flox/flox and Scx-Cre. Col11a1flox/flox mice expressed Col11a1 mRNA at levels comparable to wild type and Scx-Cre mice. In contrast, in Col11a1Δten/Δten mice, Col11a1 mRNA expression decreased to baseline in flexor digitorum longus tendons (FDL). Collagen XI protein expression was absent in Col11a1Δten/Δten FDLs, and at ~50% in Col11a1+/Δten compared to controls. Phenotypically, Col11a1Δten/Δten mice had significantly decreased body weights (p < 0.001), grip strengths (p < 0.001), and with age developed gait impairment becoming hypomobile. In the absence of Col11a1, the tendon collagen fibrillar matrix was abnormal when analyzed using transmission electron microscopy. Reducing Col11a1 and, therefore collagen XI content, resulted in abnormal fibril structure, loss of normal fibril diameter control with a significant shift to small diameters and disrupted parallel alignment of fibrils. These alterations in matrix structure were observed in developing (day 4), maturing (day 30) and mature (day 60) mice. Altering the time of knockdown using inducible I-Col11a1−/− mice indicated that the primary regulatory foci for collagen XI was in development. In mature Col11a1Δten/Δten FDLs a significant decrease in the biomechanical properties was observed. The decrease in maximum stress and modulus suggest that fundamental differences in the material properties in the absence of Col11a1 expression underlie the mechanical deficiencies. These data demonstrate an essential role for collagen XI in regulation of tendon fibril assembly and organization occurring primarily during development.
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Affiliation(s)
- Mei Sun
- Department of Molecular Pharmacology & Physiology, University of South Florida, Morsani College of Medicine, 12901 Bruce B. Downs Blvd, Tampa, FL, 33612 USA
| | - Eric Y Luo
- Department of Molecular Pharmacology & Physiology, University of South Florida, Morsani College of Medicine, 12901 Bruce B. Downs Blvd, Tampa, FL, 33612 USA
| | - Sheila M Adams
- Department of Molecular Pharmacology & Physiology, University of South Florida, Morsani College of Medicine, 12901 Bruce B. Downs Blvd, Tampa, FL, 33612 USA
| | - Thomas Adams
- Department of Molecular Pharmacology & Physiology, University of South Florida, Morsani College of Medicine, 12901 Bruce B. Downs Blvd, Tampa, FL, 33612 USA
| | - Yaping Ye
- McKay Orthopedic Research Laboratory, University of Pennsylvania, Stemmler Hall, 3450 Hamilton Walk, Philadelphia, PA, 19104 USA
| | - Snehal S Shetye
- McKay Orthopedic Research Laboratory, University of Pennsylvania, Stemmler Hall, 3450 Hamilton Walk, Philadelphia, PA, 19104 USA
| | - Louis J Soslowsky
- McKay Orthopedic Research Laboratory, University of Pennsylvania, Stemmler Hall, 3450 Hamilton Walk, Philadelphia, PA, 19104 USA
| | - David E Birk
- Department of Molecular Pharmacology & Physiology, University of South Florida, Morsani College of Medicine, 12901 Bruce B. Downs Blvd, Tampa, FL, 33612 USA; McKay Orthopedic Research Laboratory, University of Pennsylvania, Stemmler Hall, 3450 Hamilton Walk, Philadelphia, PA, 19104 USA.
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6
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Toss MS, Miligy IM, Gorringe KL, Aleskandarany MA, Alkawaz A, Mittal K, Aneja R, Ellis IO, Green AR, Rakha EA. Collagen (XI) alpha-1 chain is an independent prognostic factor in breast ductal carcinoma in situ. Mod Pathol 2019; 32:1460-1472. [PMID: 31175327 DOI: 10.1038/s41379-019-0286-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/31/2019] [Accepted: 03/31/2019] [Indexed: 12/21/2022]
Abstract
Collagen11A1 (COL11A1) is a fibrillary type collagen constituting a minor component of the extracellular matrix and plays role in tissue tensile strength. Overexpression of COL11A1 expression is associated with aggressive behavior and poor outcome in several human malignancies. In this study, we evaluated the association between COL11A1 expression and clinicopathological parameters of the breast ductal carcinoma in situ (DCIS) and its prognostic value. COL11A1 protein expression was assessed immunohistochemically in a large well-characterized cohort of DCIS including pure (n = 776) and DCIS associated with invasive carcinoma (DCIS-mixed, n = 239). COL11A1 expression was assessed in tumor cells and surrounding stromal cells, and correlated with clinicopathological parameters, immunoprofile and disease outcome. In pure DCIS, high COL11A1 expression was observed in tumor cells and surrounding stromal cells in 25 and 13% of cases, respectively. Higher COL11A1 expression within the stromal cells was associated with hormone receptor negative, HER2 enriched and triple negative molecular subtypes and showed a positive linear correlation with proliferation index, dense tumor infiltrating lymphocytes and hypoxia-inducible factor 1 alpha. COL11A1 expression in tumor and stromal cells was significantly higher in DCIS associated with invasive carcinoma than in pure DCIS, and within the DCIS-mixed cohort, the invasive component showed higher COL11A1 expression than the DCIS component (all, p < 0.0001). Overexpression of stromal COL11A1 was an independent predictor of shorter local recurrence-free interval for all recurrences (HR = 13.2, 95% CI = 6.9-25.4, p < 0.0001) and for invasive recurrences (HR = 11.2, 95% CI = 4.9-25.8, p < 0.0001). When incorporated with other risk factors, stromal COL11A1 provided better patient risk stratification. DCIS with higher stromal COL11A1 expression showed poor outcome even with adjuvant radiotherapy management. In conclusion, overexpression of stromal COL11A1 is associated with invasive recurrence in DCIS and is a potential marker to predict the response to radiotherapy.
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Affiliation(s)
- Michael S Toss
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, The University of Nottingham, Nottingham City Hospital, Nottingham, UK.,Histopathology department, South Egypt Cancer Institute, Assiut University, Assiut, Egypt
| | - Islam M Miligy
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, The University of Nottingham, Nottingham City Hospital, Nottingham, UK.,Histopathology department, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Kylie L Gorringe
- Cancer Genomics Program, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia.,The Sir Peter MacCallum Department of Oncology, University of Melbourne, Parkville, VIC, Australia
| | - Mohammed A Aleskandarany
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, The University of Nottingham, Nottingham City Hospital, Nottingham, UK.,Histopathology department, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Abdulbaqi Alkawaz
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, The University of Nottingham, Nottingham City Hospital, Nottingham, UK
| | | | - Ritu Aneja
- Georgia State University, Atlanta, GA, USA
| | - Ian O Ellis
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, The University of Nottingham, Nottingham City Hospital, Nottingham, UK
| | - Andrew R Green
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, The University of Nottingham, Nottingham City Hospital, Nottingham, UK
| | - Emad A Rakha
- Nottingham Breast Cancer Research Centre, Division of Cancer and Stem Cells, School of Medicine, The University of Nottingham, Nottingham City Hospital, Nottingham, UK. .,Histopathology department, Faculty of Medicine, Menoufia University, Menoufia, Egypt.
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Boot-Handford RP. Gene cloning to clinical trials-the trials and tribulations of a life with collagen. Int J Exp Pathol 2019; 100:4-11. [PMID: 30912609 DOI: 10.1111/iep.12311] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 02/19/2019] [Accepted: 02/24/2019] [Indexed: 12/17/2022] Open
Abstract
This review, based on the BSMB Fell-Muir Lecture I presented in July 2018 at the Matrix Biology Europe Conference in Manchester, gives a personal perspective of my own laboratory's contributions to research into type X collagen, metaphyseal chondrodysplasia type Schmid and potential treatments for this disorder that are currently entering clinical trial. I have tried to set the advances made in the context of the scientific technologies available at the time and how these have changed over the more than three decades of this research.
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Affiliation(s)
- Raymond P Boot-Handford
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
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Staiculescu MC, Cocciolone AJ, Procknow JD, Kim J, Wagenseil JE. Comparative gene array analyses of severe elastic fiber defects in late embryonic and newborn mouse aorta. Physiol Genomics 2018; 50:988-1001. [PMID: 30312140 PMCID: PMC6293116 DOI: 10.1152/physiolgenomics.00080.2018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 10/09/2018] [Accepted: 10/09/2018] [Indexed: 01/17/2023] Open
Abstract
Elastic fibers provide reversible elasticity to the large arteries and are assembled during development when hemodynamic forces are increasing. Mutations in elastic fiber genes are associated with cardiovascular disease. Mice lacking expression of the elastic fiber genes elastin ( Eln-/-), fibulin-4 ( Efemp2-/-), or lysyl oxidase ( Lox-/-) die at birth with severe cardiovascular malformations. All three genetic knockout models have elastic fiber defects, aortic wall thickening, and arterial tortuosity. However, Eln-/- mice develop arterial stenoses, while Efemp2-/- and Lox-/- mice develop ascending aortic aneurysms. We performed comparative gene array analyses of these three genetic models for two vascular locations and developmental stages to determine differentially expressed genes and pathways that may explain the common and divergent phenotypes. We first examined arterial morphology and wall structure in newborn mice to confirm that the lack of elastin, fibulin-4, or lysyl oxidase expression provided the expected phenotypes. We then compared gene expression levels for each genetic model by three-way ANOVA for genotype, vascular location, and developmental stage. We found three genes upregulated by genotype in all three models, Col8a1, Igfbp2, and Thbs1, indicative of a common response to severe elastic fiber defects in developing mouse aorta. Genes that are differentially regulated by vascular location or developmental stage in all three models suggest mechanisms for location or stage-specific disease pathology. Comparison of signaling pathways enriched in all three models shows upregulation of integrins and matrix proteins involved in early wound healing, but not of mature matrix molecules such as elastic fiber proteins or fibrillar collagens.
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Affiliation(s)
| | - Austin J Cocciolone
- Department of Biomedical Engineering, Washington University , St. Louis, Missouri
| | - Jesse D Procknow
- Department of Mechanical Engineering and Materials Science, Washington University , St. Louis, Missouri
| | - Jungsil Kim
- Department of Mechanical Engineering and Materials Science, Washington University , St. Louis, Missouri
| | - Jessica E Wagenseil
- Department of Mechanical Engineering and Materials Science, Washington University , St. Louis, Missouri
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Karaglani M, Toumpoulis I, Goutas N, Poumpouridou N, Vlachodimitropoulos D, Vasilaros S, Rizos I, Kroupis C. Development of novel real-time PCR methodology for quantification of COL11A1 mRNA variants and evaluation in breast cancer tissue specimens. BMC Cancer 2015; 15:694. [PMID: 26466668 PMCID: PMC4606509 DOI: 10.1186/s12885-015-1725-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 10/08/2015] [Indexed: 12/26/2022] Open
Abstract
Background Collagen XI is a key structural component of the extracellular matrix and consists of three alpha chains. One of these chains, the α1 (XI), is encoded by the COL11A1 gene and is transcribed to four different variants at least (A, B, C and E) that differ in the propensity to N-terminal domain proteolysis and potentially in the way the extracellular matrix is arranged. This could affect the ability of tumor cells to invade the remodeled stroma and metastasize. No study in the literature has so far investigated the expression of these four variants in breast cancer nor does a method for their accurate quantitative detection exist. Methods We developed a conventional PCR for the general detection of the general COL11A1 transcript and real-time qPCR methodologies with dual hybridization probes in the LightCycler platform for the quantitative determination of the variants. Data from 90 breast cancer tissues with known histopathological features were collected. Results The general COL11A1 transcript was detected in all samples. The developed methodologies for each variant were rapid as well as reproducible, sensitive and specific. Variant A was detected in 30 samples (33 %) and variant E in 62 samples (69 %). Variants B and C were not detected at all. A statistically significant correlation was observed between the presence of variant E and lymph nodes involvement (p = 0.037) and metastasis (p = 0.041). Conclusions With the newly developed tools, the possibility of inclusion of COL11A1 variants as prognostic biomarkers in emerging multiparameter technologies examining tissue RNA expression should be further explored. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1725-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Makrina Karaglani
- Department of Clinical Biochemistry and Molecular Diagnostics, Attikon University General Hospital, University of Athens Medical School, Rimini 1 St., Haidari, 12462, Greece.
| | - Ioannis Toumpoulis
- Department of Cardiothoracic Surgery, Attikon University General Hospital, University of Athens Medical School, Athens, Greece.
| | - Nikolaos Goutas
- Pathologic Anatomy Laboratory, Evgenidio Hospital, University of Athens Medical School, Athens, Greece.
| | - Nikoleta Poumpouridou
- Department of Clinical Biochemistry and Molecular Diagnostics, Attikon University General Hospital, University of Athens Medical School, Rimini 1 St., Haidari, 12462, Greece.
| | | | | | - Ioannis Rizos
- Department of Cardiology, Attikon University General Hospital, University of Athens Medical School, Athens, Greece.
| | - Christos Kroupis
- Department of Clinical Biochemistry and Molecular Diagnostics, Attikon University General Hospital, University of Athens Medical School, Rimini 1 St., Haidari, 12462, Greece.
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Hammond MA, Wallace JM. Exercise prevents β-aminopropionitrile-induced morphological changes to type I collagen in murine bone. BONEKEY REPORTS 2015; 4:645. [PMID: 25798234 DOI: 10.1038/bonekey.2015.12] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Accepted: 01/27/2015] [Indexed: 01/22/2023]
Abstract
This study evaluated the effects of reduced enzymatic crosslinking, exercise and the ability of exercise to prevent the deleterious impact of reduced crosslinking on collagen D-spacing. Eight-week-old female mice were divided into four weight-matched groups receiving daily injections of either phosphate-buffered saline (PBS) or 300 mg kg(-1) β-aminopropionitrile (BAPN) while undergoing normal cage activity (Sed) or 30 min per day of treadmill exercise (Ex) for 21 consecutive days. BAPN caused a downward shift in the D-spacing distribution in Sed BAPN compared with Sed PBS (P<0.001) but not in Ex BAPN (P=0.429), indicating that exercise can prevent changes in collagen morphology caused by BAPN. Exercise had no effect on D-spacing in PBS control mice (P=0.726), which suggests that exercise-induced increases in lysyl oxidase may be a possible mechanism for preventing BAPN-induced changes in D-spacing. The D-spacing changes were accompanied by an increase in mineral crystallinity/maturity due to the main effect of BAPN (P=0.016). However, no changes in nanoindentation, reference point indentation or other Raman spectroscopy parameters were observed. The ability of exercise to rescue BAPN-driven changes in collagen morphology necessitates further research into the use of mechanical stimulation as a preventative therapy for collagen-based diseases.
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Affiliation(s)
- Max A Hammond
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette , Indianapolis, IN, USA
| | - Joseph M Wallace
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette , Indianapolis, IN, USA ; Department of Biomedical Engineering, Indiana University-Purdue University at Indianapolis , Indianapolis, IN, USA ; Department of Orthopaedic Surgery, Indiana University School of Medicine , Indianapolis, IN, USA
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Freire J, Domínguez-Hormaetxe S, Pereda S, De Juan A, Vega A, Simón L, Gómez-Román J. Collagen, type XI, alpha 1: An accurate marker for differential diagnosis of breast carcinoma invasiveness in core needle biopsies. Pathol Res Pract 2014; 210:879-84. [DOI: 10.1016/j.prp.2014.07.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 05/06/2014] [Accepted: 07/22/2014] [Indexed: 12/01/2022]
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12
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Scherf JM, Hu XS, Tepp WH, Ichtchenko K, Johnson EA, Pellett S. Analysis of gene expression in induced pluripotent stem cell-derived human neurons exposed to botulinum neurotoxin A subtype 1 and a type A atoxic derivative. PLoS One 2014; 9:e111238. [PMID: 25337697 PMCID: PMC4206481 DOI: 10.1371/journal.pone.0111238] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 09/19/2014] [Indexed: 11/18/2022] Open
Abstract
Botulinum neurotoxin type A1 (BoNT/A1) is a potent protein toxin responsible for the potentially fatal human illness botulism. Notwithstanding, the long-lasting flaccid muscle paralysis caused by BoNT/A has led to its utility as a powerful and versatile bio-pharmaceutical. The flaccid paralysis is due to specific cleavage of neuronal SNAREs by BoNTs. However, actions of BoNTs on intoxicated neurons besides the cleavage of SNAREs have not been studied in detail. In this study we investigated by microarray analysis the effects of BoNT/A and a catalytically inactive derivative (BoNT/A ad) on the transcriptome of human induced pluripotent stem cell (hiPSC)-derived neurons at 2 days and 2 weeks after exposure. While there were only minor changes in expression levels at 2 days post exposure, at 2 weeks post exposure 492 genes were differentially expressed more than 2-fold in BoNT/A1-exposed cells when compared to non-exposed populations, and 682 genes were differentially expressed in BoNT/A ad-exposed cells. The vast majority of genes were similarly regulated in BoNT/A1 and BoNT/A ad-exposed neurons, and the few genes differentially regulated between BoNT/A1 and BoNT/A ad-exposed neurons were differentially expressed less than 3.5 fold. These data indicate a similar response of neurons to BoNT/A1 and BoNT/A ad exposure. The most highly regulated genes in cells exposed to either BoNT/A1 or BoNT/A ad are involved in neurite outgrowth and calcium channel sensitization.
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Affiliation(s)
- Jacob M. Scherf
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Xiaoyang Serene Hu
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - William H. Tepp
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Konstantin Ichtchenko
- Department of Pharmacology, New York University School of Medicine, New York, New York, United States of America
| | - Eric A. Johnson
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Sabine Pellett
- Department of Bacteriology, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
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Richards AJ, Fincham GS, McNinch A, Hill D, Poulson AV, Castle B, Lees MM, Moore AT, Scott JD, Snead MP. Alternative splicing modifies the effect of mutations in COL11A1 and results in recessive type 2 Stickler syndrome with profound hearing loss. J Med Genet 2013; 50:765-71. [PMID: 23922384 PMCID: PMC3812854 DOI: 10.1136/jmedgenet-2012-101499] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Stickler syndromes types 1, 2 and 3 are usually dominant disorders caused by mutations in the genes COL2A1, COL11A1 and COL11A2 that encode the fibrillar collagens types II and XI present in cartilage and vitreous. Rare recessive forms of Stickler syndrome exist that are due to mutations in genes encoding type IX collagen (COL9A1 type 4 Stickler syndrome and COL9A2 type 5 Stickler syndrome). Recently, recessive mutations in the COL11A1 gene have been demonstrated to result in fibrochondrogenesis, a much more severe skeletal dysplasia, which is often lethal. Here we demonstrate that some mutations in COL11A1 are recessive, modified by alternative splicing and result in type 2 Stickler syndrome rather than fibrochondrogenesis. METHODS Patients referred to the national Stickler syndrome diagnostic service for England, UK were assessed clinically and subsequently sequenced for mutations in COL11A1. Additional in silico and functional studies to assess the effect of sequence variants on pre-mRNA processing and collagen structure were performed. RESULTS In three different families, heterozygous COL11A1 biallelic null, null/missense or silent/missense mutations, were found. They resulted in a recessive form of type 2 Stickler syndrome characterised by particularly profound hearing loss and are clinically distinct from the recessive types 4 and 5 variants of Stickler syndrome. One mutant allele in each family is capable of synthesising a normal α1(XI) procollagen molecule, via variable pre-mRNA processing. CONCLUSION This new variant has important implications for molecular diagnosis and counselling families with type 2 Stickler syndrome.
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Wei Z, Seldin MM, Natarajan N, Djemal DC, Peterson JM, Wong GW. C1q/tumor necrosis factor-related protein 11 (CTRP11), a novel adipose stroma-derived regulator of adipogenesis. J Biol Chem 2013; 288:10214-29. [PMID: 23449976 DOI: 10.1074/jbc.m113.458711] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
C1q/TNF-related proteins (CTRPs) are a family of secreted regulators of glucose and lipid metabolism. Here, we describe CTRP11, a novel and phylogenetically conserved member of the C1q family. Our studies revealed that white and brown adipose are major tissues that express CTRP11, and its expression is acutely regulated by changes in metabolic state. Within white adipose tissue, CTRP11 is primarily expressed by stromal vascular cells. As a secreted multimeric protein, CTRP11 forms disulfide-linked oligomers. Although the conserved N-terminal Cys-28 and Cys-32 are dispensable for the assembly of higher-order oligomeric structures, they are unexpectedly involved in modulating protein secretion. When co-expressed, CTRP11 forms heteromeric complexes with closely related CTRP10, CTRP13, and CRF (CTRP14) via the C-terminal globular domains, combinatorial associations that potentially generate functionally distinct complexes. Functional studies revealed a role for CTRP11 in regulating adipogenesis. Ectopic expression of CTRP11 or exposure to recombinant protein inhibited differentiation of 3T3-L1 adipocytes. The expression of peroxisome proliferator-activated receptor-γ and CAAT/enhancer binding protein-α, which drive the adipogenic gene program, was markedly suppressed by CTRP11. Impaired adipogenesis was caused by a CTRP11-mediated decrease in p42/44-MAPK signaling and inhibition of mitotic clonal expansion, a process essential for adipocyte differentiation in culture. These results implicate CTRP11 as a novel secreted regulator of adipogenesis and highlight the potential paracrine cross-talk between adipocytes and cells of the stromal vascular compartment in maintaining adipose tissue homeostasis.
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Affiliation(s)
- Zhikui Wei
- Department of Physiology and Center for Metabolism and Obesity Research, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
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15
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Brown RJ, Mallory C, McDougal OM, Oxford JT. Proteomic analysis of Col11a1-associated protein complexes. Proteomics 2011; 11:4660-76. [PMID: 22038862 PMCID: PMC3463621 DOI: 10.1002/pmic.201100058] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 08/26/2011] [Accepted: 09/28/2011] [Indexed: 11/06/2022]
Abstract
Cartilage plays an essential role during skeletal development within the growth plate and in articular joint function. Interactions between the collagen fibrils and other extracellular matrix molecules maintain structural integrity of cartilage, orchestrate complex dynamic events during embryonic development, and help to regulate fibrillogenesis. To increase our understanding of these events, affinity chromatography and liquid chromatography/tandem mass spectrometry were used to identify proteins that interact with the collagen fibril surface via the amino terminal domain of collagen α1(XI) a protein domain that is displayed at the surface of heterotypic collagen fibrils of cartilage. Proteins extracted from fetal bovine cartilage using homogenization in high ionic strength buffer were selected based on affinity for the amino terminal noncollagenous domain of collagen α1(XI). MS was used to determine the amino acid sequence of tryptic fragments for protein identification. Extracellular matrix molecules and cellular proteins that were identified as interacting with the amino terminal domain of collagen α1(XI) directly or indirectly, included proteoglycans, collagens, and matricellular molecules, some of which also play a role in fibrillogenesis, while others are known to function in the maintenance of tissue integrity. Characterization of these molecular interactions will provide a more thorough understanding of how the extracellular matrix molecules of cartilage interact and what role collagen XI plays in the process of fibrillogenesis and maintenance of tissue integrity. Such information will aid tissue engineering and cartilage regeneration efforts to treat cartilage tissue damage and degeneration.
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Affiliation(s)
- Raquel J. Brown
- Department of Biological Sciences, Biomolecular Research Center and Musculoskeletal Research Institute, Boise State University, Boise, ID 83725-1515, USA
| | - Christopher Mallory
- Department of Chemistry and Biochemistry, Biomolecular Research Center and Musculoskeletal Research Institute, Boise State University, Boise, ID 83725-1515, USA
| | - Owen M. McDougal
- Department of Chemistry and Biochemistry, Biomolecular Research Center and Musculoskeletal Research Institute, Boise State University, Boise, ID 83725-1515, USA
| | - Julia Thom Oxford
- Department of Biological Sciences, Biomolecular Research Center and Musculoskeletal Research Institute, Boise State University, Boise, ID 83725-1515, USA
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Mätlik K, Redik K, Speek M. L1 antisense promoter drives tissue-specific transcription of human genes. J Biomed Biotechnol 2010; 2006:71753. [PMID: 16877819 PMCID: PMC1559930 DOI: 10.1155/jbb/2006/71753] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Transcription of transposable elements interspersed in the genome
is controlled by complex interactions between their regulatory
elements and host factors. However, the same regulatory elements
may be occasionally used for the transcription of host genes. One
such example is the human L1 retrotransposon, which contains an
antisense promoter (ASP) driving transcription into adjacent genes
yielding chimeric transcripts. We have characterized 49 chimeric
mRNAs corresponding to sense and antisense strands of human genes.
Here we show that L1 ASP is capable of functioning as an
alternative promoter, giving rise to a chimeric transcript whose
coding region is identical to the ORF of mRNA of the following
genes: KIAA1797, CLCN5, and SLCO1A2.
Furthermore, in these cases the activity of L1 ASP is
tissue-specific and may expand the expression pattern of the
respective gene. The activity of L1 ASP is tissue-specific also in
cases where L1 ASP produces antisense RNAs complementary to
COL11A1 and BOLL mRNAs. Simultaneous assessment
of the activity of L1 ASPs in multiple loci revealed the presence
of L1 ASP-derived transcripts in all human tissues examined. We
also demonstrate that L1 ASP can act as a promoter in vivo and
predict that it has a heterogeneous transcription initiation site.
Our data suggest that L1 ASP-driven transcription may increase the
transcriptional flexibility of several human genes.
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Affiliation(s)
- Kert Mätlik
- Department of Gene Technology, Tallinn University of
Technology, Akadeemia tee 15, Tallinn 19086, Estonia
| | - Kaja Redik
- Department of Gene Technology, Tallinn University of
Technology, Akadeemia tee 15, Tallinn 19086, Estonia
| | - Mart Speek
- Department of Gene Technology, Tallinn University of
Technology, Akadeemia tee 15, Tallinn 19086, Estonia
- *Mart Speek:
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Exposito JY, Valcourt U, Cluzel C, Lethias C. The fibrillar collagen family. Int J Mol Sci 2010; 11:407-426. [PMID: 20386646 PMCID: PMC2852846 DOI: 10.3390/ijms11020407] [Citation(s) in RCA: 176] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2009] [Revised: 01/22/2010] [Accepted: 01/23/2010] [Indexed: 01/25/2023] Open
Abstract
Collagens, or more precisely collagen-based extracellular matrices, are often considered as a metazoan hallmark. Among the collagens, fibrillar collagens are present from sponges to humans, and are involved in the formation of the well-known striated fibrils. In this review we discuss the different steps in the evolution of this protein family, from the formation of an ancestral fibrillar collagen gene to the formation of different clades. Genomic data from the choanoflagellate (sister group of Metazoa) Monosiga brevicollis, and from diploblast animals, have suggested that the formation of an ancestral alpha chain occurred before the metazoan radiation. Phylogenetic studies have suggested an early emergence of the three clades that were first described in mammals. Hence the duplication events leading to the formation of the A, B and C clades occurred before the eumetazoan radiation. Another important event has been the two rounds of "whole genome duplication" leading to the amplification of fibrillar collagen gene numbers, and the importance of this diversification in developmental processes. We will also discuss some other aspects of fibrillar collagen evolution such as the development of the molecular mechanisms involved in the formation of procollagen molecules and of striated fibrils.
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Affiliation(s)
- Jean-Yves Exposito
- Author to whom correspondence should be addressed; E-Mail:
; Tel.: +33-4-72-72-26-77; Fax: +33-4-72-72-26-04
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Hoffman GG, Branam AM, Huang G, Pelegri F, Cole WG, Wenstrup RM, Greenspan DS. Characterization of the six zebrafish clade B fibrillar procollagen genes, with evidence for evolutionarily conserved alternative splicing within the pro-alpha1(V) C-propeptide. Matrix Biol 2010; 29:261-75. [PMID: 20102740 DOI: 10.1016/j.matbio.2010.01.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2009] [Revised: 01/13/2010] [Accepted: 01/19/2010] [Indexed: 11/26/2022]
Abstract
Genes for tetrapod fibrillar procollagen chains can be divided into two clades, A and B, based on sequence homologies and differences in protein domain and gene structures. Although the major fibrillar collagen types I-III comprise only clade A chains, the minor fibrillar collagen types V and XI comprise both clade A chains and the clade B chains pro-alpha1(V), pro-alpha3(V), pro-alpha1(XI) and pro-alpha2(XI), in which defects can underlie various genetic connective tissue disorders. Here we characterize the clade B procollagen chains of zebrafish. We demonstrate that in contrast to the four tetrapod clade B chains, zebrafish have six clade B chains, designated here as pro-alpha1(V), pro-alpha3(V)a and b, pro-alpha1(XI)a and b, and pro-alpha2(XI), based on synteny, sequence homologies, and features of protein domain and gene structures. Spatiotemporal expression patterns are described, as are conserved and non-conserved features that provide insights into the function and evolution of the clade B chain types. Such features include differential alternative splicing of NH(2)-terminal globular sequences and the first case of a non-triple helical imperfection in the COL1 domain of a clade B, or clade A, fibrillar procollagen chain. Evidence is also provided for previously unknown and evolutionarily conserved alternative splicing within the pro-alpha1(V) C-propeptide, which may affect selectivity of collagen type V/XI chain associations in species ranging from zebrafish to human. Data presented herein provide insights into the nature of clade B procollagen chains and should facilitate their study in the zebrafish model system.
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Affiliation(s)
- Guy G Hoffman
- Department of Pathology and Laboratory Medicine, University of Wisconsin, Madison, WI 53706, USA
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19
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Park ES, Cho HS, Kwon TG, Jang SN, Lee SH, An CH, Shin HI, Kim JY, Cho JY. Proteomics Analysis of Human Dentin Reveals Distinct Protein Expression Profiles. J Proteome Res 2009; 8:1338-46. [DOI: 10.1021/pr801065s] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Eun-Sung Park
- Department of Biochemistry & BK 21, Department of Oral & Maxillofacial Surgery, Department of Oral & Maxillofacial Radiology, and Department of Oral Pathology & IHBR, School of Dentistry, Kyungpook National University, Daegu, South Korea
| | - Hye-Sim Cho
- Department of Biochemistry & BK 21, Department of Oral & Maxillofacial Surgery, Department of Oral & Maxillofacial Radiology, and Department of Oral Pathology & IHBR, School of Dentistry, Kyungpook National University, Daegu, South Korea
| | - Tae-Geon Kwon
- Department of Biochemistry & BK 21, Department of Oral & Maxillofacial Surgery, Department of Oral & Maxillofacial Radiology, and Department of Oral Pathology & IHBR, School of Dentistry, Kyungpook National University, Daegu, South Korea
| | - Sin-Nam Jang
- Department of Biochemistry & BK 21, Department of Oral & Maxillofacial Surgery, Department of Oral & Maxillofacial Radiology, and Department of Oral Pathology & IHBR, School of Dentistry, Kyungpook National University, Daegu, South Korea
| | - Sang-Han Lee
- Department of Biochemistry & BK 21, Department of Oral & Maxillofacial Surgery, Department of Oral & Maxillofacial Radiology, and Department of Oral Pathology & IHBR, School of Dentistry, Kyungpook National University, Daegu, South Korea
| | - Chang-Hyeon An
- Department of Biochemistry & BK 21, Department of Oral & Maxillofacial Surgery, Department of Oral & Maxillofacial Radiology, and Department of Oral Pathology & IHBR, School of Dentistry, Kyungpook National University, Daegu, South Korea
| | - Hong-In Shin
- Department of Biochemistry & BK 21, Department of Oral & Maxillofacial Surgery, Department of Oral & Maxillofacial Radiology, and Department of Oral Pathology & IHBR, School of Dentistry, Kyungpook National University, Daegu, South Korea
| | - Jae-Young Kim
- Department of Biochemistry & BK 21, Department of Oral & Maxillofacial Surgery, Department of Oral & Maxillofacial Radiology, and Department of Oral Pathology & IHBR, School of Dentistry, Kyungpook National University, Daegu, South Korea
| | - Je-Yoel Cho
- Department of Biochemistry & BK 21, Department of Oral & Maxillofacial Surgery, Department of Oral & Maxillofacial Radiology, and Department of Oral Pathology & IHBR, School of Dentistry, Kyungpook National University, Daegu, South Korea
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Abstract
Little is known about collagen XI expression in normal and malignant breast tissue. Tissue microarrays, constructed from 72 patients with breast carcinoma and matched normal tissue, were immunohistochemically stained with five antisera against isoform-specific regions of collagen alpha1(XI) N-terminal domain. Staining intensity was graded on a 0-3 scale in epithelial cytoplasm, stroma, and endothelial staining of the vasculature of each tissue core. The staining was compared to known pathologic parameters: age, tumor size, overall tumor grade, nuclear grade, tubule formation, mitotic counts, angiolymphatic invasion, node status, estrogen receptor status, progesterone receptor status, and HER-2/neu status. Estrogen and progesterone receptor status were used as a control for comparison. With antisera V1a and amino propeptide (Npp), stroma surrounding cancerous cells was found to have decreased collagen alpha1(XI) staining compared to stroma adjacent to normal epithelium (P=0.0006, P<0.0001). Collagen alpha1(XI) staining with V1a antiserum in cytoplasm of cancer cells demonstrated decreased intensity in metastasized primary tumors when compared to nonmetastasized primary tumors (P=0.009). Cytoplasmic staining with Npp antiserum in cancer demonstrated an inverse relationship to positive estrogen receptor status in cancer (P=0.012) and to progesterone receptor status (P=0.044). Stromal staining for Npp in cancerous tissue demonstrated an inverse relationship with tubule formation score (P=0.015). This is the first study to localize collagen XI within normal and malignant breast tissue. Collagen alpha1(XI) appears to be downregulated in stroma surrounding breast cancer. Detection of collagen XI in breast tissue may help predict women who have lymph node metastases.
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21
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Hwang JH, Yokoyama Y, Lee SH, Mizuta S, Yoshinaka R. cDNA cloning and characterization of Type V/XI procollagen α1 chain in the skate, Raja kenojei. Food Chem 2008. [DOI: 10.1016/j.foodchem.2007.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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22
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Wescott DC, Pinkerton MN, Gaffey BJ, Beggs KT, Milne TJ, Meikle MC. Osteogenic gene expression by human periodontal ligament cells under cyclic tension. J Dent Res 2008; 86:1212-6. [PMID: 18037658 DOI: 10.1177/154405910708601214] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The forces that orthodontic appliances apply to the teeth are transmitted through the periodontal ligament (PDL) to the supporting alveolar bone, leading to the deposition or resorption of bone, depending upon whether the tissues are exposed to a tensile or compressive mechanical strain. To evaluate the osteogenic potential of PDL cells, we applied a 12% uni-axial cyclic tensile strain to cultured human PDL cells and analyzed the differential expression of 78 genes implicated in osteoblast differentiation and bone metabolism by real-time RT-PCR array technology. Sixteen genes showed statistically significant changes in expression in response to alterations in their mechanical environment, including cell adhesion molecules and collagen fiber types. Genes linked to the osteoblast phenotype that were up-regulated included BMP2, BMP6, ALP, SOX9, MSX1, and VEGFA; those down-regulated included BMP4 and EGF. This study has expanded our knowledge of the transcriptional profile of PDL cells and identified several new mechanoresponsive genes.
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Affiliation(s)
- D C Wescott
- Department of Oral Sciences, Faculty of Dentistry, University of Otago, PO Box 647, Dunedin, New Zealand
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23
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Bowen KB, Reimers AP, Luman S, Kronz JD, Fyffe WE, Oxford JT. Immunohistochemical localization of collagen type XI alpha1 and alpha2 chains in human colon tissue. J Histochem Cytochem 2007; 56:275-83. [PMID: 18040076 DOI: 10.1369/jhc.7a7310.2007] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
In previous studies, collagen XI mRNA has been detected in colon cancer, but its location in human colon tissue has not been determined. The heterotrimeric collagen XI consists of three alpha chains. While it is known that collagen XI plays a regulatory role in collagen fibril formation, its function in the colon is unknown. The characterization of normal human colon tissue will allow a better understanding of the variance of collagen XI in abnormal tissues. Grossly normal and malignant human colon tissue was obtained from pathology archives. Immunohistochemical staining with a 58K Golgi marker and alpha1(XI) and alpha2(XI) antisera was used to specifically locate their presence in normal colon tissue. A comparative bright field microscopic analysis showed the presence of collagen XI in human colon. The juxtanuclear, dot-like collagen XI staining in the Golgi apparatus of goblet cells in normal tissue paralleled the staining of the 58K Golgi marker. Ultra light microscopy verified these results. Staining was also confirmed in malignant colon tissue. This study is the first to show that collagen XI is present in the Golgi apparatus of normal human colon goblet cells and localizes collagen XI in both normal and malignant tissue. Although the function of collagen XI in the colon is unknown, our immunohistochemical characterization provides the foundation for future immunohistopathology studies of the colon.
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Affiliation(s)
- Kara B Bowen
- Department of Biology, Northwest Narzarene University, Nampa, Idaho, USA
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Carlsen S, Lu S, Holmdahl R. Arthritis Induced with Minor Cartilage Proteins. ARTHRITIS RESEARCH 2007; 136:225-42. [DOI: 10.1007/978-1-59745-402-5_17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Abstract
The astacin family (M12A) of the metzincin subclan MA(M) of metalloproteinases has been detected in developing and mature individuals of species that range from hydra to humans. Functions of this family of metalloproteinase vary from digestive degradation of polypeptides, to biosynthetic processing of extracellular proteins, to activation of growth factors. This review will focus on a small subgroup of the astacin family; the bone morphogenetic protein 1 (BMP1)/Tolloid (TLD)-like metalloproteinases. In vertebrates, the BMP1/TLD-like metalloproteinases play key roles in regulating formation of the extracellular matrix (ECM) via biosynthetic processing of various precursor proteins into mature functional enzymes, structural proteins, and proteins involved in initiating mineralization of the ECM of hard tissues. Roles in ECM formation include: processing of the C-propeptides of procollagens types I-III, to yield the major fibrous components of vertebrate ECM; proteolytic activation of the enzyme lysyl oxidase, necessary to formation of covalent cross-links in collagen and elastic fibers; processing of NH2-terminal globular domains and C-propeptides of types V and XI procollagen chains to yield monomers that are incorporated into and control the diameters of collagen type I and II fibrils, respectively; processing of precursors for laminin 5 and collagen type VII, both of which are involved in securing epidermis to underlying dermis; and maturation of small leucine-rich proteoglycans. The BMP1/TLD-related metalloproteinases are also capable of activating the vertebrate transforming growth factor-beta (TGF-beta)-like "chalones" growth differentiation factor 8 (GDF8, also known as myostatin), and GDF11 (also known as BMP11), involved in negative feedback inhibition of muscle and neural tissue growth, respectively; by freeing them from noncovalent latent complexes with their cleaved prodomains. BMP1/TLD-like proteinases also liberate the vertebrate TGF-beta-like morphogens BMP2 and 4 and their invertebrate ortholog decapentaplegic, from latent complexes with the vertebrate extracellular antagonist chordin and its invertebrate ortholog short gastrulation (SOG), respectively. The result is formation of the BMP signaling gradients that form the dorsal-ventral axis in embryogenesis. Thus, BMP1/TLD-like proteinases appear to be key to regulating and orchestrating formation of the ECM and signaling by various TGF-beta-like proteins in morphogenetic and homeostatic events.
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Affiliation(s)
- Gaoxiang Ge
- Department of Pathology and Laboratory Medicine, University of Wisconsin, Madison, Wisconsin 53706, USA
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Goessler UR, Bugert P, Bieback K, Sadick H, Verse T, Baisch A, Hörmann K, Riedel F. In vitro analysis of matrix proteins and growth factors in dedifferentiating human chondrocytes for tissue-engineered cartilage. Acta Otolaryngol 2005; 125:647-53. [PMID: 16076715 DOI: 10.1080/00016480510029365] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
CONCLUSIONS With ongoing culture and dedifferentiation of chondrocytes, significant changes in the expression patterns of various collagens and the insulin-like growth factor (IGF) receptor were detected. The latter could play an important role in the differentiation of human chondrocytes. OBJECTIVE Tissue engineering represents a promising method for the construction of autologous chondrogenic grafts for reconstructive surgery. So far, little is known about the expression of markers for cell proliferation and differentiation in cultured chondrocytes. MATERIAL AND METHODS Human chondrocytes were isolated from septal cartilage (n=5) and held in primary cell culture. Cells were harvested after 24 h and 6 days. Proliferation was analyzed using an Alamar Blue assay. The differentiation of the cells was investigated using bright field microscopy, the expression patterns of various proteins using immunohistochemistry and the expression of distinct genes using a microarray technique. RESULTS The chondrocytes showed strong proliferation (Day 0: 16.7+/-0.7 fluorescent units; Day 5: 52.4+/-2.2 fluorescent units) from the third day of cell culture in medium without growth factors. From this point onwards, a dedifferentiation of the chondrocytes could be observed. In cell culture, the chondrocytes expressed collagen 1 and 10 without expression of collagen 3. After 6 days of cell culture, they expressed collagen 2. The chondrocytes showed constant low expression of the fibroblast growth factor-2 receptor, but constant high expression of vascular endothelial growth factor, matrix metalloproteinase (MMP)2 and MMP9. The cells never expressed the epidermal growth factor receptor. The proportion of IGF receptor-expressing cells diminished significantly during cell culture.
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Ihanamäki T, Pelliniemi LJ, Vuorio E. Collagens and collagen-related matrix components in the human and mouse eye. Prog Retin Eye Res 2004; 23:403-34. [PMID: 15219875 DOI: 10.1016/j.preteyeres.2004.04.002] [Citation(s) in RCA: 116] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The three-dimensional structure of the eye plays an important role in providing a correct optical environment for vision. Much of this function is dependent on the unique structural features of ocular connective tissue, especially of the collagen types and their supramolecular structures. For example, the organization of collagen fibrils is largely responsible for transparency and refraction of cornea, lens and vitreous body, and collagens present in the sclera are largely responsible for the structural strength of the eye. Phylogenetically, most of the collagens are highly conserved between different species, which suggests that collagens also share similar functions in mice and men. Despite considerable differences between the mouse and the human eye, particularly in the proportion of the different tissue components, the difficulty of performing systematic histologic and molecular studies on the human eye has made mouse an appealing alternative to studies addressing the role of individual genes and their mutations in ocular diseases. From a genetic standpoint, the mouse has major advantages over other experimental animals as its genome is better known than that of other species and it can be manipulated by the modern techniques of genetic engineering. Furthermore, it is easy, quick and relatively cheap to produce large quantities of mice for systematic studies. Thus, transgenic techniques have made it possible to study consequences of specific mutations in genes coding for structural components of ocular connective tissues in mice. As these changes in mice have been shown to resemble those in human diseases, mouse models are likely to provide efficient tools for pathogenetic studies on human disorders affecting the extracellular matrix. This review is aimed to clarify the role of collagenous components in the mouse and human eye with a closer look at the new findings of the collagens in the cartilage and the eye, the so-called "cartilage collagens".
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Affiliation(s)
- Tapio Ihanamäki
- Department of Ophthalmology, Helsinki University Central Hospital, PO Box 220, FIN-00029 HUS Helsinki, Finland.
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Matsuo N, Yu-Hua W, Sumiyoshi H, Sakata-Takatani K, Nagato H, Sakai K, Sakurai M, Yoshioka H. The transcription factor CCAAT-binding factor CBF/NF-Y regulates the proximal promoter activity in the human alpha 1(XI) collagen gene (COL11A1). J Biol Chem 2003; 278:32763-70. [PMID: 12805369 DOI: 10.1074/jbc.m305599200] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We have characterized the proximal promoter region of the human COL11A1 gene. Transient transfection assays indicate that the segment from -199 to +1 is necessary for the activation of basal transcription. Electrophoretic mobility shift assays (EMSAs) demonstrated that the ATTGG sequence, within the -147 to -121 fragment, is critical to bind nuclear proteins in the proximal COL11A1 promoter. We demonstrated that the CCAAT binding factor (CBF/NF-Y) bound to this region using an interference assay with consensus oligonucleotides and a supershift assay with specific antibodies in an EMSA. In a chromatin immunoprecipitation assay and EMSA using DNA-affinity-purified proteins, CBF/NF-Y proteins directly bound this region in vitro and in vivo. We also showed that four tandem copies of the CBF/NF-Y-binding fragment produced higher transcriptional activity than one or two copies, whereas the absence of a CBF/NF-Y-binding fragment suppressed the COL11A1 promoter activity. Furthermore, overexpression of a dominant-negative CBF-B/NF-YA subunit significantly inhibited promoter activity in both transient and stable cells. These results indicate that the CBF/NF-Y proteins regulate the transcription of COL11A1 by directly binding to the ATTGG sequence in the proximal promoter region.
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Affiliation(s)
- Noritaka Matsuo
- Department of Anatomy, Biology, and Medicine, Oita Medical University, Hasama-machi, Oita 879-5593, Japan
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Pace JM, Corrado M, Missero C, Byers PH. Identification, characterization and expression analysis of a new fibrillar collagen gene, COL27A1. Matrix Biol 2003; 22:3-14. [PMID: 12714037 DOI: 10.1016/s0945-053x(03)00007-6] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The fibrillar collagens provide structural scaffolding and strength to the extracellular matrices of connective tissues. We identified a partial sequence of a new fibrillar collagen gene in the NCBI databases and completed the sequence with bioinformatic approaches and 5' RACE. This gene, designated COL27A1, is approximately 156 kbp long and has 61 exons located on chromosome 9q32-33. The homologous mouse gene is located on chromosome 4. The gene encodes amino- and carboxyl-terminal propeptides similar to those in the 'minor' fibrillar collagens. The triple-helical domain is, however, shorter and contains 994 amino acids with two imperfections of the Gly-Xaa-Yaa repeat pattern. There were three sites of alternative RNA splicing, only one of which led to the intact mRNA that encodes this full-length collagen proalpha chain. Phylogenetic analyses indicated that COL27A1 forms a clade with COL24A1 that is distinct from the two known lineages of fibrillar collagens. Expression analyses of the mouse col27a1 gene demonstrated high expression in cartilage, the eye and ear, but also in lung and colon. It is likely that the major protein product of COL27A1, proalpha1(XXVII), is a component of the extracellular matrices of cartilage and these other tissues. Study of this collagen should yield insights into normal chondrogenesis, and provide clues to the pathogenesis of some chondrodysplasias and disorders of other tissues in which this gene is expressed.
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Affiliation(s)
- James M Pace
- Department of Pathology, University of Washington, Box 357470, Seattle 98195, USA
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Ikeda T, Mabuchi A, Fukuda A, Kawakami A, Ryo Y, Yamamoto S, Miyoshi K, Haga N, Hiraoka H, Takatori Y, Kawaguchi H, Nakamura K, Ikegawa S. Association analysis of single nucleotide polymorphisms in cartilage-specific collagen genes with knee and hip osteoarthritis in the Japanese population. J Bone Miner Res 2002; 17:1290-6. [PMID: 12096843 DOI: 10.1359/jbmr.2002.17.7.1290] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Osteoarthritis (OA) is one of the most common diseases in the elderly. Although its pathophysiology is complex and its molecular basis remains to be determined, much evidence suggests that OA has strong genetic determinants. To search for susceptibility loci of OA, we selected seven candidate genes encoding cartilage-specific collagens (type II, IX, X, and XI collagens) and performed association analysis for OA using single nucleotide polymorphisms (SNPs) in the coding region of these genes. Four hundred seventeen OA samples and 280 control samples were collected from the Japanese population, and 12 SNPs were genotyped. Our studies have identified two susceptibility loci of OA: COL2A1 and COL9A3. An SNP in COL9A3 showed significant association with knee OA (p = 0.002, odds ratio [OR] = 1.48). Haplotype analysis showed significant association between a specific haplotype of COL2A1 and hip OA (p = 0.024; OR = 1.30). Further analysis of these two genes will shed light on the molecular mechanisms of OA.
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Affiliation(s)
- Toshiyuki Ikeda
- Laboratory for Bone and Joint Diseases, SNP Research Center, RIKEN (The Institute of Physical and Chemical Research), Tokyo, Japan
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31
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Tanaka K, Tsumaki N, Kozak CA, Matsumoto Y, Nakatani F, Iwamoto Y, Yamada Y. A Krüppel-associated box-zinc finger protein, NT2, represses cell-type-specific promoter activity of the alpha 2(XI) collagen gene. Mol Cell Biol 2002; 22:4256-67. [PMID: 12024037 PMCID: PMC133841 DOI: 10.1128/mcb.22.12.4256-4267.2002] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Type XI collagen is composed of three chains, alpha 1(XI), alpha 2(XI), and alpha 3(XI), and plays a critical role in the formation of cartilage collagen fibrils and in skeletal morphogenesis. It was previously reported that the -530-bp promoter segment of the alpha 2(XI) collagen gene (Col11a2) was sufficient for cartilage-specific expression and that a 24-bp sequence from this segment was able to switch promoter activity from neural tissues to cartilage in transgenic mice when this sequence was placed in the heterologous neurofilament light gene (NFL) promoter. To identify a protein factor that bound to the 24-bp sequence of the Col11a2 promoter, we screened a mouse limb bud cDNA expression library in the yeast one-hybrid screening system and obtained the cDNA clone NT2. Sequence analysis revealed that NT2 is a zinc finger protein consisting of a Krüppel-associated box (KRAB) and is a homologue of human FPM315, which was previously isolated by random cloning and sequencing. The KRAB domain has been found in a number of zinc finger proteins and implicated as a transcriptional repression domain, although few target genes for KRAB-containing zinc finger proteins has been identified. Here, we demonstrate that NT2 functions as a negative regulator of Col11a2. In situ hybridization analysis of developing mouse cartilage showed that NT2 mRNA is highly expressed by hypertrophic chondrocytes but is minimally expressed by resting and proliferating chondrocytes, in an inverse correlation with the expression patterns of Col11a2. Gel shift assays showed that NT2 bound a specific sequence within the 24-bp site of the Col11a2 promoter. We found that Col11a2 promoter activity was inhibited by transfection of the NT2 expression vector in RSC cells, a chondrosarcoma cell line. The expression vector for mutant NT2 lacking the KRAB domain failed to inhibit Col11a2 promoter activity. These results demonstrate that KRAB-zinc finger protein NT2 inhibits transcription of its physiological target gene, suggesting a novel regulatory mechanism of cartilage-specific expression of Col11a2.
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Affiliation(s)
- Kazuhiro Tanaka
- Craniofacial Developmental Biology and Regeneration Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland 20892, USA
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Unsöld C, Pappano WN, Imamura Y, Steiglitz BM, Greenspan DS. Biosynthetic processing of the pro-alpha 1(V)2pro-alpha 2(V) collagen heterotrimer by bone morphogenetic protein-1 and furin-like proprotein convertases. J Biol Chem 2002; 277:5596-602. [PMID: 11741999 DOI: 10.1074/jbc.m110003200] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The low abundance fibrillar collagen type V is incorporated into and regulates the diameters of type I collagen fibrils. Bone morphogenetic protein-1 (BMP-1) is a metalloprotease that plays key roles in regulating formation of vertebrate extracellular matrix; it cleaves the C-propeptides of the major fibrillar procollagens I-III and processes precursors to produce the mature forms of the cross-linking enzyme prolysyl oxidase, the proteoglycan biglycan, and the basement membrane protein laminin 5. Here we have successfully produced recombinant pro-alpha1(V)(2)pro-alpha2(V) heterotrimers, and we have used these to characterize biosynthetic processing of the most prevalent in vivo form of type V procollagen. In addition, we have compared the processing of endogenous pro-alpha1(V) chains by wild type mouse embryo fibroblasts and by fibroblasts derived from embryos doubly homozygous null for the Bmp-1 gene and for a gene encoding the closely related metalloprotease mammalian Tolloid-like 1. Together, results presented herein indicate that within pro-alpha1(V)(2)pro-alpha2(V) heterotrimers, pro-alpha1(V) N-propeptides and pro-alpha2(V) C-propeptides are processed by BMP-1-like enzymes, and pro-alpha1(V) C-propeptides are processed by furin-like proprotein convertases in vivo.
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Affiliation(s)
- Christine Unsöld
- Department of Pathology, University of Wisconsin, Madison, Wisconsin 53706, USA
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Nöth U, Tuli R, Osyczka AM, Danielson KG, Tuan RS. In vitro engineered cartilage constructs produced by press-coating biodegradable polymer with human mesenchymal stem cells. TISSUE ENGINEERING 2002; 8:131-44. [PMID: 11886661 DOI: 10.1089/107632702753503126] [Citation(s) in RCA: 118] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Cartilage constructs were fabricated by press-coating D,D-L,L-polylactic acid polymer blocks of 1 x 0.5 x 0.5 cm onto high-density cell pellets of 1.5 x 10(6) human mesenchymal stem cells (mhMSCs) isolated from the femoral head of patients undergoing total hip arthroplasty. Following attachment of the cell pellets to the polymer surfaces, chondrogenesis was induced by culturing the constructs for 3 weeks in a serum-free, chemically defined, chondrogenic differentiation medium supplemented with transforming growth factor beta-1 (TGF-beta1). Histochemical analysis showed that the press-coated pellets formed cell layers composed of morphologically distinct, chondrocyte-like cells, surrounded by a fibrous, sulfated proteoglycan-rich extracellular matrix. Immunohistochemical analysis detected collagen type II and cartilage proteoglycan link protein within the extracellular matrix. Expression of the cartilage-specific marker genes collagen types II, IX, X, and XI, and aggrecan was detected by RT-PCR. Scanning electron microscopy revealed organized and spatially distinct zones of cells within the cell-polymer constructs, with the superficial layer resembling compact hyaline cartilage. The fabrication method of press-coating biodegradable polymers with mhMSCs allows the in vitro production of cartilage constructs without harvesting chondrocytes from intact articular cartilage surfaces. These constructs may be applicable as prototypes for the reconstruction of articular cartilage defects in humans.
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Affiliation(s)
- Ulrich Nöth
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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Chen Y, Sumiyoshi H, Oxford JT, Yoshioka H, Ramirez F, Morris NP. Cis-acting elements regulate alternative splicing of exons 6A, 6B and 8 of the alpha1(XI) collagen gene and contribute to the regional diversification of collagen XI matrices. Matrix Biol 2001; 20:589-99. [PMID: 11731275 DOI: 10.1016/s0945-053x(01)00169-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Consecutive exons 6A, 6B, 7 and 8 that encode the variable region of the amino-terminal domain (NTD) of the col11a1 gene product undergo a complex pattern of alternative splicing that is both tissue-dependent and developmentally regulated. Expression of col11a1 is predominantly associated with cartilage where it plays a critical role in skeletal development. At least five splice-forms (6B-7-8, 6A-7-8, 7-8, 6B-7 and 7) are found in cartilage. Splice-forms containing exon 6B or 8 have distinct distributions in the long bone during development, while in non-cartilage tissues, splice-form 6A-7-8 is typically expressed. In order to study this complex and tissue-specific alternative splicing, a mini-gene that contains mouse genomic sequence from exon 5 to 11, flanking the variable region of alpha1(XI)-NTD, was constructed. The minigene was transfected into chondrocytic (RCS) and non-chondrocytic (A204) cell lines that endogenously express alpha1(XI), as well as 293 cells which do not express alpha1(XI). Alternative splicing in RCS and A204 cells reflected the appropriate cartilage and non-cartilage patterns while 293 cells produced only 6A-7-8. This suggests that 6A-7-8 is the default splicing pathway and that cell or tissue-specific trans-acting factors are required to obtain pattern of the alternative splicing of alpha1(XI) pre-mRNA observed in chondrocytes. Deletional analysis was used to identify cis-acting regions important for regulating splicing. The presence of the intact exon 7 was required to generate the full complex chondrocytic pattern of splicing. Furthermore, deletional mapping of exon 6B identified sequences required for expression of exon 6B in RCS cells and these may correspond to purine-rich (ESE) and AC-rich (ACE) exonic splicing enhancers.
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Affiliation(s)
- Y Chen
- Shriners Hospital, Research Department, 3 101 SW Sam Jackson Park Rd., Portland, OR 97225, USA
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35
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Urabe K, Jingushi S, Ikenoue T, Okazaki K, Sakai H, Li C, Iwamoto Y. Immature osteoblastic cells express the pro-alpha2(XI) collagen gene during bone formation in vitro and in vivo. J Orthop Res 2001; 19:1013-20. [PMID: 11780999 DOI: 10.1016/s0736-0266(01)00043-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Type XI collagen is predominantly found in cartilage. However, expression of the pro-alpha2(XI) collagen gene (COL11A2) has recently been detected in various non-cartilaginous tissues. We identified the differentiation stage at which COL11A2 was expressed in cultured fetal rat calvarial (FRC) cells and in rat femoral fracture calluses in order to investigate the involvement of COL11A2 during bone formation in vitro and in vivo. We also studied the alternative splicing of exons 6-8 in FRC cells and fracture calluses. In FRC cells, mineralized nodules stained with von Kossa stain were observed from day 9 after confluence. COL11A2 was highly expressed on days 0 and 5, but the expression levels were rapidly decreased on day 9 by Northern blot analysis. During rat femoral fracture repair, intramembranous ossification proceeded and newly formed woven bone was observed on the cortex on day 7 after fracture. In situ hybridization showed that COL11A2 signals were detected in osteoblastic cells in the newly formed woven bone. According to the maturation and remodeling of the woven bone into the trabecular bone, the distribution of the signal for COL11A2 mRNA was limited to the superficial osteoblastic cells of the newly formed trabecular bone. These results demonstrated that COL11A2 was expressed in relatively immature osteoblastic cells during bone formation in vitro and in vivo. RT-PCR showed that the shortest band corresponding to mRNA lacking exons 6-8 was clearly detected when using RNA from soft calluses. In contrast, the largest band corresponding to mRNA with exons 6-8 was predominant when using RNA from FRC cells or from hard calluses on days 7 and 14. These results indicate that the splicing pattern of exons 6-8 in osteoblastic cells is different from the pattern in chondrocytes.
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Affiliation(s)
- K Urabe
- Department of Orthopaedics Surgery, Graduate School of Medical Sciences, Kyushu University, Fukyuoka, Japan.
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36
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Li SW, Takanosu M, Arita M, Bao Y, Ren ZX, Maier A, Prockop DJ, Mayne R. Targeted disruption of Col11a2 produces a mild cartilage phenotype in transgenic mice: comparison with the human disorder otospondylomegaepiphyseal dysplasia (OSMED). Dev Dyn 2001; 222:141-52. [PMID: 11668593 DOI: 10.1002/dvdy.1178] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Transgenic mice were prepared by homologous recombination with a Col11a2 targeting gene in which an inverted neomycin-resistant gene was inserted between restriction sites in exons 27 and 28. The targeted allele was transcribed in shortened mRNAs, which could be detected by Northern blotting. However, translation of the full-length Col11a2 chain was unable to occur because of the presence of premature termination codons within the inverted neomycin-resistant gene. Analysis of pepsin-resistant collagen chains from rib cartilage of homozygous mice demonstrated the lack of synthesis of intact alpha2(XI) chains. However, pepsin-resistant collagen chains of either alpha1(XI) or alpha1(V) were still detected on sodium dodecyl sulfate polyacrylamide gel electrophoresis. Therefore, alpha2(XI) chains are not essential for the assembly of some molecular forms of triple-helical type V/XI collagen. The phenotype was milder than in the cho/cho mouse in which, as the result of mutation, translation of the full-length alpha1(XI) chain fails to occur and the mice die at birth (Li et al., 1995). Homozygous mice without expression of an alpha2(XI) chain had a smaller body size, receding snouts, and deafness. Nasal bones in the homozygous transgenic mice were specifically shorter and dimpled on their external surfaces. Chondrocytes in growth plates of all long bones were markedly disorganized and failed to align in columns. Analysis of growth plates from transgenic mice by in situ hybridization showed expression of alpha1(II) and alpha1(XI) but not of alpha1(I) or alpha1(V) which, in contrast, were expressed in the developing bone and in the bone collar. Expression of alpha1(X) specifically in the hypertrophic cartilage was observed in normal and transgenic mice. No obvious osteoarthritis was observed throughout the life of homozygous mice up to 1 year of age, although minor morphologic anomalies in the articular cartilages were discernible. The mild phenotype is consistent with similar mutations in the COL11A2 gene seen in patients with nonocular Stickler syndrome and some patients with otospondylomegaepiphyseal dysplasia (OSMED), as well as in patients with a nonsyndromic form of deafness called DFNA13.
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Affiliation(s)
- S W Li
- Center for Gene Therapy, MCP Hahnemann University, Philadelphia, Pennsylvania, USA
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37
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Välkkilä M, Melkoniemi M, Kvist L, Kuivaniemi H, Tromp G, Ala-Kokko L. Genomic organization of the human COL3A1 and COL5A2 genes: COL5A2 has evolved differently than the other minor fibrillar collagen genes. Matrix Biol 2001; 20:357-66. [PMID: 11566270 DOI: 10.1016/s0945-053x(01)00145-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
We report here on the complete structure of the human COL3A1 and COL5A2 genes. Collagens III and V, together with collagens I, II and XI make up the group of fibrillar collagens, all of which share a similar structure and function; however, despite the similar size of the major triple-helical domain, the number of exons coding for the domain differs between the genes for the major fibrillar collagens characterized so far (I, II, and III) and the minor ones (V and XI). The main triple-helical domain being encoded by 49-50 exons, including the junction exons, in the COL5A1, COL11A1 and COL11A2 genes, but by 43-44 exons in the genes for the major fibrillar collagens. Characterization of the genomic structure of the COL3A1 gene confirmed its association with the major fibrillar collagen genes, but surprisingly, the genomic organization of the COL5A2 gene was found to be similar to that of the COL3A1 gene. We also confirmed that the two genes are located in tail-to-tail orientation with an intergenic distance of approximately 22 kb. Phylogenetic analysis suggested that they have evolved from a common ancestor gene. Analysis of the genomic sequences identified a novel single nucleotide polymorphism and a novel dinucleotide repeat. These polymorphisms should be useful for linkage analysis of the Ehlers-Danlos syndrome and related disorders.
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Affiliation(s)
- M Välkkilä
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, 90220 Oulu, Finland
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38
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Yates KE, Mizuno S, Glowacki J. Early shifts in gene expression during chondroinduction of human dermal fibroblasts. Exp Cell Res 2001; 265:203-11. [PMID: 11302685 DOI: 10.1006/excr.2001.5192] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Treatment options for damaged articular cartilage are limited because of that tissue's poor capacity for repair. Possible approaches to this problem are to stimulate cartilage matrix production in situ or to engineer replacement tissue. Both of these approaches would benefit from a detailed understanding of the molecular mechanisms of chondroblast differentiation. In previous studies, we described a novel in vitro model of postnatal chondroblast differentiation. That model of induced chondrogenesis was used to test the hypothesis that cellular interactions with demineralized bone powder (DBP) would induce specific, early shifts in gene expression, prior to the expression of cartilage matrix genes. Differentially expressed genes were identified by representational difference analysis of human dermal fibroblasts cultured for 3 days with DBP in three-dimensional collagen sponges. Genes that were upregulated by DBP comprised several functional classes, including cytoskeletal elements, protein synthesis and trafficking, and transcriptional regulation. Kinetic analysis of gene expression over 21 days showed that vigilin was transiently upregulated on day 3. In contrast, expression of cartilage signature genes continued to increase. These results are an important step toward complete characterization of the mechanisms by which DBP induces chondroblastic differentiation in postnatal cells.
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Affiliation(s)
- K E Yates
- Department of Orthopedic Surgery, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115, USA.
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Vaughan-Thomas A, Young RD, Phillips AC, Duance VC. Characterization of type XI collagen-glycosaminoglycan interactions. J Biol Chem 2001; 276:5303-9. [PMID: 11084037 DOI: 10.1074/jbc.m008764200] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Using competitive binding experiments, it was found that native type XI collagen binds heparin, heparan sulfate, and dermatan sulfate. However, interactions were not evident with hyaluronic acid, keratan sulfate, or chondroitin sulfate chains over the concentration range studied. Chondrocyte-matrix interactions were investigated using cell attachment to solid phase type XI collagen. Pretreatment of chondrocytes with either heparin or heparinase significantly reduced attachment to type XI collagen. Incubation of denatured and cyanogen bromide-cleaved type XI collagen with radiolabeled heparin identified sites of interaction on the alpha1(XI) and alpha2(XI) chains. NH(2)-terminal sequence data confirmed that the predominant heparin-binding peptide contained the sequence GKPGPRGQRGPTGPRGSRGAR from the alpha1(XI) chain. Using rotary shadowing electron microscopy of native type XI collagen molecules and heparin-bovine serum albumin conjugate, an additional binding site was identified at one end of the triple helical region of the collagen molecule. This coincides with consensus heparin binding motifs present at the amino-terminal ends of both the alpha1(XI) and the alpha2(XI) chains. The contribution of glycosaminoglycan-type XI collagen interactions to cartilage matrix stabilization is discussed.
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Affiliation(s)
- A Vaughan-Thomas
- Connective Tissue Biology Laboratories, School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3US, Wales, United Kingdom.
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40
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Iyama K, Sumiyoshi H, Khaleduzzaman M, Matsuo N, Ninomiya Y, Yoshioka H. Differential expression of two exons of the alpha1(XI) collagen gene (Col11a1) in the mouse embryo. Matrix Biol 2001; 20:53-61. [PMID: 11246003 DOI: 10.1016/s0945-053x(00)00130-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The amino terminal domain of collagen XI has a unique structure, which is believed to participate in the regulation of matrix assembly. Interestingly, several distinct isoforms of the amino terminal domain of alpha1(XI) and alpha2(XI) collagen chains exist as a result of alternative splicing. Here we report the analysis of the alternative splicing pattern of the mouse alpha1(XI) collagen gene (Col11a1). Like other vertebrate species, the mutually exclusive expression of exons 6A and 6B of Col11a1 results in the inclusion in the alpha1 chain of either an acidic peptide (pI 3.14) or a basic peptide (pI 11.66). Expression of these two exons was monitored in several tissues of the 16.5-day mouse embryo by in situ hybridization and immunohistochemistry, with exon-specific cDNA probes and peptide-specific antibodies, respectively. The results documented that isoforms containing the exon 6B-encoded peptide accumulate predominantly in the vertebrae, skeletal muscles and intestinal epithelium. By contrast, exon 6A products were found to be most abundant in the smooth muscle cells of the intestine, aorta and lung. The results using in situ hybridization confirmed those using immunohistochemistry. Albeit correlative, the evidence suggests distinct contributions of the two peptides to the differential assembly of tissue-specific matrices.
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Affiliation(s)
- K Iyama
- Department of Surgical Pathology, Kumamoto University School of Medicine, 860-8556, Kumamoto, Japan
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41
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Touhata K, Tanaka H, Yokoyama Y, Sakaguchi M, Toyohara H. Structure of a full-length cDNA clone for the pro-alpha1(V/XI) collagen chain of red seabream. BIOCHIMICA ET BIOPHYSICA ACTA 2001; 1517:323-6. [PMID: 11342118 DOI: 10.1016/s0167-4781(00)00265-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The cDNA of type V/XI collagen alpha1 (rsCOL) chain has been isolated from cells established from eyed-period eggs of red seabream, Pagrus major, and sequenced. The amino acid sequence deduced from red seabream alpha1(V/XI) chain resembles that of type XI collagen alpha1 chain. On the other hand, tissue distribution of rsCOL resembles that of type V collagen based on RT-PCR analysis. This is the first report of the cloning of the full-length cDNA of type V/XI collagen alpha1 chain from fish.
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Affiliation(s)
- K Touhata
- Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan.
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Liu Y, Li H, Tanaka K, Tsumaki N, Yamada Y. Identification of an enhancer sequence within the first intron required for cartilage-specific transcription of the alpha2(XI) collagen gene. J Biol Chem 2000; 275:12712-8. [PMID: 10777565 DOI: 10.1074/jbc.275.17.12712] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Type XI collagen, a heterotrimer composed of alpha1(XI), alpha2(XI) and alpha3(XI), is primarily synthesized by chondrocytes in cartilage and is also present in some other tissues. Type XI collagen plays a critical role in collagen fibril formation and skeletal morphogenesis. We investigated a tissue-specific transcriptional enhancer in the first intron of the alpha2(XI) collagen gene (Col11a2). Transient transfection assays using reporter gene constructs revealed that a 60-base pair (bp) segment within intron 1 increased promoter activity of Col11a2 in rat chondrosarcoma cells but not in either BalB/3T3 cells or undifferentiated ATDC5 cells, suggesting that it contained cell type-specific enhancer activity. In transgenic mice, this 60-bp fragment was also able to target beta-galactosidase expression to cartilage including the limbs and axial skeleton, with similar localization specificity as the full-length intron 1 fragment. Competition experiments in gel shift assays using mutated oligonucleotides showed that recombinant Sox9 bound to a 7-bp sequence, CTCAAAG, within the 60-bp segment. Anti-Sox9 antibodies supershifted the complex of the 60-bp segment with recombinant Sox9 or with rat chondrosarcoma cell extracts, confirming the binding of Sox9 to the enhancer. Moreover, a site-specific mutation within the 7-bp segment resulted in essentially complete loss of the enhancer activity in chondrosarcoma cells and transgenic mice. These results suggest that the 7-bp sequence within intron 1 plays a critical role in the cartilage-specific enhancer activity of Col11a2 through Sox9-mediated transcriptional activation.
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Affiliation(s)
- Y Liu
- Craniofacial Developmental Biology and Regeneration Branch, NIDCR, National Institutes of Health, Bethesda, Maryland 20892, USA
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Imamura Y, Scott IC, Greenspan DS. The pro-alpha3(V) collagen chain. Complete primary structure, expression domains in adult and developing tissues, and comparison to the structures and expression domains of the other types V and XI procollagen chains. J Biol Chem 2000; 275:8749-59. [PMID: 10722718 DOI: 10.1074/jbc.275.12.8749] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The low abundance fibrillar collagen type V is widely distributed in tissues as an alpha1(V)(2)alpha2(V) heterotrimer that helps regulate the diameters of fibrils of the abundant collagen type I. Mutations in the alpha1(V) and alpha2(V) chain genes have been identified in some cases of classical Ehlers-Danlos syndrome (EDS), in which aberrant collagen fibrils are associated with connective tissue fragility, particularly in skin and joints. Type V collagen also exists as an alpha1(V)alpha2(V)alpha3(V) heterotrimer that has remained poorly characterized chiefly due to inability to obtain the complete primary structure or nucleic acid probes for the alpha3(V) chain or its biosynthetic precursor, pro-alpha3(V). Here we provide human and mouse full-length pro-alpha3(V) sequences. Pro-alpha3(V) is shown to be closely related to the alpha1(V) precursor, pro-alpha1(V), but with marked differences in N-propeptide sequences, and collagenous domain features that provide insights into the low melting temperature of alpha1(V)alpha2(V)alpha3(V) heterotrimers, lack of heparin binding by alpha3(V) chains and the possibility that alpha1(V)alpha2(V)alpha3(V) heterotrimers are incorporated into heterotypic fibrils. In situ hybridization of mouse embryos detects alpha3(V) expression primarily in the epimysial sheaths of developing muscles and within nascent ligaments adjacent to forming bones and in joints. This distribution, and the association of alpha1(V), alpha2(V), and alpha3(V) chains in heterotrimers, suggests the human alpha3(V) gene COL5A3 as a candidate locus for at least some cases of classical EDS in which the alpha1(V) and alpha2(V) genes have been excluded, and for at least some cases of the hypermobility type of EDS, a condition marked by gross joint laxity and chronic musculoskeletal pain. COL5A3 is mapped to 19p13.2 near a polymorphic marker that should be useful in analyzing linkage with EDS and other disease phenotypes.
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Affiliation(s)
- Y Imamura
- Department of Pathology and Laboratory Medicine, University of Wisconsin, Madison, Wisconsin 53706, USA
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44
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Annunen S, Körkkö J, Czarny M, Warman ML, Brunner HG, Kääriäinen H, Mulliken JB, Tranebjærg L, Brooks DG, Cox GF, Cruysberg JR, Curtis MA, Davenport SLH, Friedrich CA, Kaitila I, Krawczynski MR, Latos-Bielenska A, Mukai S, Olsen BR, Shinno N, Somer M, Vikkula M, Zlotogora J, Prockop DJ, Ala-Kokko L. Splicing mutations of 54-bp exons in the COL11A1 gene cause Marshall syndrome, but other mutations cause overlapping Marshall/Stickler phenotypes. Am J Hum Genet 1999; 65:974-83. [PMID: 10486316 PMCID: PMC1288268 DOI: 10.1086/302585] [Citation(s) in RCA: 164] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Stickler and Marshall syndromes are dominantly inherited chondrodysplasias characterized by midfacial hypoplasia, high myopia, and sensorineural-hearing deficit. Since the characteristics of these syndromes overlap, it has been argued whether they are distinct entities or different manifestations of a single syndrome. Several mutations causing Stickler syndrome have been found in the COL2A1 gene, and one mutation causing Stickler syndrome and one causing Marshall syndrome have been detected in the COL11A1 gene. We characterize here the genomic structure of the COL11A1 gene. Screening of patients with Stickler, Stickler-like, or Marshall syndrome pointed to 23 novel mutations. Genotypic-phenotypic comparison revealed an association between the Marshall syndrome phenotype and splicing mutations of 54-bp exons in the C-terminal region of the COL11A1 gene. Null-allele mutations in the COL2A1 gene led to a typical phenotype of Stickler syndrome. Some patients, however, presented with phenotypes of both Marshall and Stickler syndromes.
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Affiliation(s)
- Susanna Annunen
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Jarmo Körkkö
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Malwina Czarny
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Matthew L. Warman
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Han G. Brunner
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Helena Kääriäinen
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - John B. Mulliken
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Lisbeth Tranebjærg
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - David G. Brooks
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Gerald F. Cox
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Johan R. Cruysberg
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Mary A. Curtis
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Sandra L. H. Davenport
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Christopher A. Friedrich
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Ilkka Kaitila
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Maciej Robert Krawczynski
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Anna Latos-Bielenska
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Shitzuo Mukai
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Björn R. Olsen
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Nancy Shinno
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Mirja Somer
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Miikka Vikkula
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Joel Zlotogora
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Darwin J. Prockop
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
| | - Leena Ala-Kokko
- Collagen Research Unit, Biocenter and Department of Medical Biochemistry, University of Oulu, Oulu; Department of Medical Genetics, The Family Federation of Finland, and Department of Medical Genetics, Helsinki University Central Hospital, Helsinki; Center for Gene Therapy, MCP-Hahnemann University, and Division of Medical Genetics, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia; Department of Medical Genetics, Karol Marcinkowski University of Medical Sciences, Poznan, Poland; Department of Genetics, Case Western Reserve School of Medicine, Cleveland; Departments of Human Genetics and Ophthalmology, University Hospital of Nijmegen, Nijmegen, The Netherlands; Divisions of Plastic Surgery and Genetics, Children's Hospital, Massachusetts Eye and Ear Infirmary, and Department of Cell Biology, Harvard Medical School and Harvard-Forsyth Department of Oral Biology, Harvard School of Dental Medicine, Boston; Department of Medical Genetics, University Hospital of Tromsø, Tromsø, Norway; Division of Clinical Genetics, Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock; Sensory Genetics/Neuro-Development, Bloomington, Minnesota; Department of Clinical Genetics, Kaiser Permanente West, Los Angeles; Laboratory of Human Molecular Genetics, Christian de Duve Institute, Brussels; and Department of Human Genetics, Hadassah Medical Center, Hebrew University, Jerusalem
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45
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Yoneda C, Hirayama Y, Nakaya M, Matsubara Y, Irie S, Hatae K, Watabe S. The occurrence of two types of collagen proalpha-chain in the abalone Haliotis discus muscle. EUROPEAN JOURNAL OF BIOCHEMISTRY 1999; 261:714-21. [PMID: 10215888 DOI: 10.1046/j.1432-1327.1999.00313.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Acid-soluble collagens were prepared from connective tissues in the abalone Haliotis discus foot and adductor muscles with limited proteolysis using pepsin. Collagen preparation solubilized with 1% pepsin contained two types of alpha-chains which were different in their N-terminal amino acid sequences. Accordingly, two types of full-length cDNAs coding for collagen proalpha-chains were isolated from the foot muscle of the same animal and these proteins were named Hdcols (Haliotis discus collagens) 1alpha and 2alpha. The two N-terminal amino acid sequences of the abalone pepsin-solubilized collagen preparation corresponded to either of the two sequences deduced from the cDNA clones. In addition, several tryptic peptides prepared from the pepsin-solubilized collagen and fractionated by HPLC showed N-terminal amino acid sequences identical to those deduced from the two cDNA clones. Hdcols 1alpha and 2alpha consisted of 1378 and 1439 amino acids, respectively, showing the primary structure typical to those of fibril-forming collagens. The N-terminal propeptides of the two collagen proalpha-chains contained cysteine-rich globular domains. It is of note that Hdcol 1alpha completely lacked a short Gly-X-Y triplet repeat sequence in its propeptide. An unusual structure such as this has never before been reported for any fibril-forming collagen. The main triple-helical domains for both chains consisted of 1014 amino acids, where a supposed glycine residue in the triplet at the 598th position from the N-terminus was replaced by alanine in Hdcol 1alpha and by serine in Hdcol 2alpha. Both proalpha-chains of abalone collagens contained six cysteine residues in the carboxyl-terminal propeptide, lacking two cysteine residues usually found in vertebrate collagens. Northern blot analysis demonstrated that the mRNA levels of Hdcols 1alpha and 2alpha in various tissues including muscles were similar to each other.
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Affiliation(s)
- C Yoneda
- Laboratory of Acquatic Molecular Biology, Graduate School of Agricultural and Life Science, The University of Tokyo, Japan
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46
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Imamura Y, Steiglitz BM, Greenspan DS. Bone morphogenetic protein-1 processes the NH2-terminal propeptide, and a furin-like proprotein convertase processes the COOH-terminal propeptide of pro-alpha1(V) collagen. J Biol Chem 1998; 273:27511-7. [PMID: 9765282 DOI: 10.1074/jbc.273.42.27511] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Bone morphogenetic protein-1 (BMP-1) plays key roles in regulating the deposition of vertebrate extracellular matrix; it is the procollagen C-proteinase that processes the major fibrillar collagen types I-III, and it may process prolysyl oxidase to the mature enzyme necessary to the formation of covalent cross-links in collagen and elastic fibers. Type V collagen is a fibrillar collagen of low abundance that is incorporated into and helps regulate the shape and diameter of type I collagen fibrils. Here we show that, in contrast to its action on procollagens I-III, BMP-1 does not cleave the C-propeptide of pro-alpha1(V) homotrimers. Instead, the single BMP-1-specific cleavage site within pro-alpha1(V) chains, lies within the large globular N-propeptide. This cleavage site is immediately upstream of a glutamine, thus redefining the specificity of cleavage for BMP-1-like enzymes. It also produces an NH2 terminus that corresponds to an equivalent NH2 terminus on the processed matrix form of the similar alpha1(XI) chain, thus suggesting physiological significance. Cleavage of the C-propeptide occurs efficiently in recombinant pro-alpha1(V) homotrimers produced in 293-EBNA human embryonic kidney cells, and this cleavage is shown to occur immediately downstream of the sequence RTRR. This is similar to sites cleaved by subtilisin-like proprotein/prohormone convertases and is shown to be specifically cleaved by the recombinant subtilisin-like proprotein/prohormone convertase furin.
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Affiliation(s)
- Y Imamura
- Department of Pathology and Laboratory Medicine, University of Wisconsin, Madison, Wisconsin 53706, USA
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47
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Tsumaki N, Kimura T, Tanaka K, Kimura JH, Ochi T, Yamada Y. Modular arrangement of cartilage- and neural tissue-specific cis-elements in the mouse alpha2(XI) collagen promoter. J Biol Chem 1998; 273:22861-4. [PMID: 9722502 DOI: 10.1074/jbc.273.36.22861] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Type XI collagen, a heterotrimer specific to cartilage matrix, plays an important role in cartilage morphogenesis. We analyzed various alpha2(XI) collagen promoter-lacZ reporter gene constructs in transgenic mice to understand tissue-specific transcriptional regulation. The -530 promoter sequence was sufficient to direct reporter gene expression specifically to cartilage. Further deletion to -500 abolished reporter gene expression in cartilage but activated the expression specific to neural tissues such as brain and neural tube. An additional 47-base pair deletion resulted in random tissue expression patterns. A 24-base pair sequence from -530 to -507 of the alpha2(XI) promoter was able to switch the activity of the heterologous neurofilament light gene promoter from neural tissues to cartilage. These results suggest that the alpha2(XI) collagen gene is regulated by at least three modular elements: a basal promoter sequence distal to -453, a neural tissue-specific element (-454 to -500), and a cartilage-specific element (-501 to -530), which inhibits expression in neural tissues and induces expression in cartilage.
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Affiliation(s)
- N Tsumaki
- Department of Orthopaedic Surgery, Osaka University Medical School, Suita 565-0871, Japan.
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48
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Li SW, Arita M, Kopen GC, Phinney DG, Prockop DJ. A 1,064 bp fragment from the promoter region of the Col11a2 gene drives lacZ expression not only in cartilage but also in osteoblasts adjacent to regions undergoing both endochondral and intramembranous ossification in mouse embryos. Matrix Biol 1998; 17:213-21. [PMID: 9707344 DOI: 10.1016/s0945-053x(98)90060-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
We isolated a 1,064 bp promoter fragment that extended from the 3'-end of the adjacent gene for retinoic X receptor-beta to beyond the most clearly defined start site of the mouse Col11a2 gene. The fragment was then joined to a beta-galactosidase gene and used to prepare transgenic mice. Three independent lines of transgenic mice were generated. The reporter beta-galactosidase gene was expressed in essentially all cartilaginous tissues in 15.5-day-old mouse embryos. In addition, the construct was expressed in osteoprogenitors within developing periosteum and in osteoblasts within mineralized bone. This pattern of expression was evident during both endochondral and intramembranous bone formation. Therefore, the results suggest that 1,064 bp promoter fragment can drive tissue-specific expression of the Col11a2 gene.
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Affiliation(s)
- S W Li
- Center for Gene Therapy, Allegheny University of the Health Sciences, Hahnemann Division, Philadelphia, Pennsylvania 19102, USA
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49
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Wu YL, Sumiyoshi H, Khaleduzzaman M, Ninomiya Y, Yoshioka H. cDNA sequence and expression of the mouse alpha1(V) collagen gene (Col5a1). BIOCHIMICA ET BIOPHYSICA ACTA 1998; 1397:275-84. [PMID: 9582436 DOI: 10.1016/s0167-4781(98)00016-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Several overlapping cDNA clones corresponding to the entire coding sequence of the mouse alpha1(V) collagen gene (Col5a1) were isolated. The conceptual amino acid translation indicated a high degree of sequence identity (94%) with the human alpha1(V) chain. All of the important structures previously noted in the human alpha1(V) chain were also conserved in the mouse chain. The alpha1(V) transcripts were easily detected in mouse embryos as early as 11 days post coitum (d.p.c.). The transcripts were widely distributed in non-cartilaginous and cartilaginous tissues. Finally, we calculated the ratio of transcripts of alpha1(V):alpha2(V):alpha1(XI) in the calvaria and tongue of 18 d.p.c. embryos using the competitive reverse transcription-polymerase chain reaction (RT-PCR) technique. The results raised the possibility that there are at least two different kind of types V/XI collagen heterotrimers in mouse embryonic tissues.
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Affiliation(s)
- Y L Wu
- Department of Molecular Biology and Biochemistry, Okayama University Medical School, Okayama 700, Japan
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50
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Griffith AJ, Sprunger LK, Sirko-Osadsa DA, Tiller GE, Meisler MH, Warman ML. Marshall syndrome associated with a splicing defect at the COL11A1 locus. Am J Hum Genet 1998; 62:816-23. [PMID: 9529347 PMCID: PMC1377029 DOI: 10.1086/301789] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Marshall syndrome is a rare, autosomal dominant skeletal dysplasia that is phenotypically similar to the more common disorder Stickler syndrome. For a large kindred with Marshall syndrome, we demonstrate a splice-donor-site mutation in the COL11A1 gene that cosegregates with the phenotype. The G+1-->A transition causes in-frame skipping of a 54-bp exon and deletes amino acids 726-743 from the major triple-helical domain of the alpha1(XI) collagen polypeptide. The data support the hypothesis that the alpha1(XI) collagen polypeptide has an important role in skeletal morphogenesis that extends beyond its contribution to structural integrity of the cartilage extracellular matrix. Our results also demonstrate allelism of Marshall syndrome with the subset of Stickler syndrome families associated with COL11A1 mutations.
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Affiliation(s)
- A J Griffith
- Department of Human Genetics, University of Michigan, Ann Arbor, MI, USA.
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