Osteogenesis of Heterotopically Transplanted Mesenchymal Stromal Cells in Rat Models of Chronic Kidney Disease

ABSTRACT The current study is based on the hypothesis of mesenchymal stromal cells (MSCs) contributing to soft‐tissue calcification and ectopic osteogenesis in chronic kidney disease (CKD). Rat MSCs were transplanted intraperitoneally in an established three‐dimensional collagen‐based model in healt...

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Veröffentlicht in:Journal of bone and mineral research 2013-12, Vol.28 (12), p.2523-2534
Hauptverfasser: Kramann, Rafael, Kunter, Uta, Brandenburg, Vincent M, Leisten, Isabelle, Ehling, Josef, Klinkhammer, Barbara M, Knüchel, Ruth, Floege, Jürgen, Schneider, Rebekka K
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container_end_page 2534
container_issue 12
container_start_page 2523
container_title Journal of bone and mineral research
container_volume 28
creator Kramann, Rafael
Kunter, Uta
Brandenburg, Vincent M
Leisten, Isabelle
Ehling, Josef
Klinkhammer, Barbara M
Knüchel, Ruth
Floege, Jürgen
Schneider, Rebekka K
description ABSTRACT The current study is based on the hypothesis of mesenchymal stromal cells (MSCs) contributing to soft‐tissue calcification and ectopic osteogenesis in chronic kidney disease (CKD). Rat MSCs were transplanted intraperitoneally in an established three‐dimensional collagen‐based model in healthy control animals and two rat models of CKD and vascular calcification: (1) 5/6 nephrectomy + high phosphorus diet; and (2) adenine nephropathy. As internal controls, collagen gels without MSCs were transplanted in the same animals. After 4 and 8 weeks, MSCs were still detectable and proliferating in the collagen gels (fluorescence‐activated cell sorting [FACS] analysis and confocal microscopy after fluorescence labeling of the cells). Aortas and MSC‐containing collagen gels in CKD animals showed distinct similarities in calcification (micro–computed tomography [µCT], energy‐dispersive X‐ray [EDX] analysis, calcium content), induction of osteogenic markers, (ie, bone morphogenic protein 2 [BMP‐2], Runt related transcription factor 2 [Runx2], alkaline phosphatase [ALP]), upregulation of the osteocytic marker sclerostin and extracellular matrix remodeling with increased expression of osteopontin, collagen I/III/IV, fibronectin, and laminin. Calcification, osteogenesis, and matrix remodeling were never observed in healthy control animals and non‐MSC–containing collagen gels in all groups. Paul Karl Horan 26 (PKH‐26)‐labeled, 3G5‐positive MSCs expressed Runx2 and sclerostin in CKD animals whereas PKH‐26‐negative migrated cells did not express osteogenic markers. In conclusion, heterotopically implanted MSCs undergo osteogenic differentiation in rat models of CKD‐induced vascular calcification, supporting our hypothesis of MSCs as possible players in heterotopic calcification processes of CKD patients. © 2013 American Society for Bone and Mineral Research.
doi_str_mv 10.1002/jbmr.1994
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Rat MSCs were transplanted intraperitoneally in an established three‐dimensional collagen‐based model in healthy control animals and two rat models of CKD and vascular calcification: (1) 5/6 nephrectomy + high phosphorus diet; and (2) adenine nephropathy. As internal controls, collagen gels without MSCs were transplanted in the same animals. After 4 and 8 weeks, MSCs were still detectable and proliferating in the collagen gels (fluorescence‐activated cell sorting [FACS] analysis and confocal microscopy after fluorescence labeling of the cells). Aortas and MSC‐containing collagen gels in CKD animals showed distinct similarities in calcification (micro–computed tomography [µCT], energy‐dispersive X‐ray [EDX] analysis, calcium content), induction of osteogenic markers, (ie, bone morphogenic protein 2 [BMP‐2], Runt related transcription factor 2 [Runx2], alkaline phosphatase [ALP]), upregulation of the osteocytic marker sclerostin and extracellular matrix remodeling with increased expression of osteopontin, collagen I/III/IV, fibronectin, and laminin. Calcification, osteogenesis, and matrix remodeling were never observed in healthy control animals and non‐MSC–containing collagen gels in all groups. Paul Karl Horan 26 (PKH‐26)‐labeled, 3G5‐positive MSCs expressed Runx2 and sclerostin in CKD animals whereas PKH‐26‐negative migrated cells did not express osteogenic markers. In conclusion, heterotopically implanted MSCs undergo osteogenic differentiation in rat models of CKD‐induced vascular calcification, supporting our hypothesis of MSCs as possible players in heterotopic calcification processes of CKD patients. © 2013 American Society for Bone and Mineral Research.</description><identifier>ISSN: 0884-0431</identifier><identifier>EISSN: 1523-4681</identifier><identifier>DOI: 10.1002/jbmr.1994</identifier><identifier>PMID: 23703894</identifier><identifier>CODEN: JBMREJ</identifier><language>eng</language><publisher>United States: Wiley Subscription Services, Inc</publisher><subject>Adenine ; Animals ; Aorta - metabolism ; Biomarkers - metabolism ; Bone Morphogenetic Proteins - metabolism ; Calcification, Physiologic ; Cell Differentiation ; Cell Movement ; CHRONIC KIDNEY DISEASE ; Collagen - metabolism ; Core Binding Factor Alpha 1 Subunit - metabolism ; Disease Models, Animal ; Extracellular Matrix - metabolism ; Gels ; Gene Expression Regulation ; Genetic Markers ; Kidney Function Tests ; Male ; MATRIX REMODELING ; Mesenchymal Stem Cell Transplantation ; MESENCHYMAL STROMAL CELLS ; Mesenchymal Stromal Cells - cytology ; Nephrectomy ; Organic Chemicals - metabolism ; OSTEOGENESIS ; Pericytes - metabolism ; Rats ; Renal Insufficiency, Chronic - physiopathology ; Renal Insufficiency, Chronic - therapy ; Transplantation, Heterotopic ; Up-Regulation ; VASCULAR CALCIFICATION</subject><ispartof>Journal of bone and mineral research, 2013-12, Vol.28 (12), p.2523-2534</ispartof><rights>2013 American Society for Bone and Mineral Research</rights><rights>2013 American Society for Bone and Mineral Research.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4874-ff067fca1e675217d193afd14153ccebab7e5160615bb9733f83dedcb8f55e603</citedby><cites>FETCH-LOGICAL-c4874-ff067fca1e675217d193afd14153ccebab7e5160615bb9733f83dedcb8f55e603</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fjbmr.1994$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fjbmr.1994$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1416,27923,27924,45573,45574</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23703894$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kramann, Rafael</creatorcontrib><creatorcontrib>Kunter, Uta</creatorcontrib><creatorcontrib>Brandenburg, Vincent M</creatorcontrib><creatorcontrib>Leisten, Isabelle</creatorcontrib><creatorcontrib>Ehling, Josef</creatorcontrib><creatorcontrib>Klinkhammer, Barbara M</creatorcontrib><creatorcontrib>Knüchel, Ruth</creatorcontrib><creatorcontrib>Floege, Jürgen</creatorcontrib><creatorcontrib>Schneider, Rebekka K</creatorcontrib><title>Osteogenesis of Heterotopically Transplanted Mesenchymal Stromal Cells in Rat Models of Chronic Kidney Disease</title><title>Journal of bone and mineral research</title><addtitle>J Bone Miner Res</addtitle><description>ABSTRACT The current study is based on the hypothesis of mesenchymal stromal cells (MSCs) contributing to soft‐tissue calcification and ectopic osteogenesis in chronic kidney disease (CKD). Rat MSCs were transplanted intraperitoneally in an established three‐dimensional collagen‐based model in healthy control animals and two rat models of CKD and vascular calcification: (1) 5/6 nephrectomy + high phosphorus diet; and (2) adenine nephropathy. As internal controls, collagen gels without MSCs were transplanted in the same animals. After 4 and 8 weeks, MSCs were still detectable and proliferating in the collagen gels (fluorescence‐activated cell sorting [FACS] analysis and confocal microscopy after fluorescence labeling of the cells). Aortas and MSC‐containing collagen gels in CKD animals showed distinct similarities in calcification (micro–computed tomography [µCT], energy‐dispersive X‐ray [EDX] analysis, calcium content), induction of osteogenic markers, (ie, bone morphogenic protein 2 [BMP‐2], Runt related transcription factor 2 [Runx2], alkaline phosphatase [ALP]), upregulation of the osteocytic marker sclerostin and extracellular matrix remodeling with increased expression of osteopontin, collagen I/III/IV, fibronectin, and laminin. Calcification, osteogenesis, and matrix remodeling were never observed in healthy control animals and non‐MSC–containing collagen gels in all groups. Paul Karl Horan 26 (PKH‐26)‐labeled, 3G5‐positive MSCs expressed Runx2 and sclerostin in CKD animals whereas PKH‐26‐negative migrated cells did not express osteogenic markers. 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Aortas and MSC‐containing collagen gels in CKD animals showed distinct similarities in calcification (micro–computed tomography [µCT], energy‐dispersive X‐ray [EDX] analysis, calcium content), induction of osteogenic markers, (ie, bone morphogenic protein 2 [BMP‐2], Runt related transcription factor 2 [Runx2], alkaline phosphatase [ALP]), upregulation of the osteocytic marker sclerostin and extracellular matrix remodeling with increased expression of osteopontin, collagen I/III/IV, fibronectin, and laminin. Calcification, osteogenesis, and matrix remodeling were never observed in healthy control animals and non‐MSC–containing collagen gels in all groups. Paul Karl Horan 26 (PKH‐26)‐labeled, 3G5‐positive MSCs expressed Runx2 and sclerostin in CKD animals whereas PKH‐26‐negative migrated cells did not express osteogenic markers. 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subjects Adenine
Animals
Aorta - metabolism
Biomarkers - metabolism
Bone Morphogenetic Proteins - metabolism
Calcification, Physiologic
Cell Differentiation
Cell Movement
CHRONIC KIDNEY DISEASE
Collagen - metabolism
Core Binding Factor Alpha 1 Subunit - metabolism
Disease Models, Animal
Extracellular Matrix - metabolism
Gels
Gene Expression Regulation
Genetic Markers
Kidney Function Tests
Male
MATRIX REMODELING
Mesenchymal Stem Cell Transplantation
MESENCHYMAL STROMAL CELLS
Mesenchymal Stromal Cells - cytology
Nephrectomy
Organic Chemicals - metabolism
OSTEOGENESIS
Pericytes - metabolism
Rats
Renal Insufficiency, Chronic - physiopathology
Renal Insufficiency, Chronic - therapy
Transplantation, Heterotopic
Up-Regulation
VASCULAR CALCIFICATION
title Osteogenesis of Heterotopically Transplanted Mesenchymal Stromal Cells in Rat Models of Chronic Kidney Disease
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