Implications of zonal architecture on differential gene expression profiling and altered pathway expressions in mandibular condylar cartilage

Abstract Mandibular condylar cartilage (MCC) is a multi-zonal heterogeneous fibrocartilage containing different types of cells, but the factors/mechanisms governing the phenotypic transition across the zones have not been fully understood. The reliability of molecular studies heavily rely on the pro...

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Autores principales:	Aisha M. Basudan, Mohammad Azhar Aziz, Yanqi Yang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/37cdb1648bde4b6f8189d1c7daa5309a
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spelling	oai:doaj.org-article:37cdb1648bde4b6f8189d1c7daa5309a2021-12-02T17:08:44ZImplications of zonal architecture on differential gene expression profiling and altered pathway expressions in mandibular condylar cartilage10.1038/s41598-021-96071-72045-2322https://doaj.org/article/37cdb1648bde4b6f8189d1c7daa5309a2021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-96071-7https://doaj.org/toc/2045-2322Abstract Mandibular condylar cartilage (MCC) is a multi-zonal heterogeneous fibrocartilage containing different types of cells, but the factors/mechanisms governing the phenotypic transition across the zones have not been fully understood. The reliability of molecular studies heavily rely on the procurement of pure cell populations from the heterogeneous tissue. We used a combined laser-capture microdissection and microarray analysis approach which allowed identification of differential zone-specific gene expression profiling and altered pathways in the MCC of 5-week-old rats. The bioinformatics analysis demonstrated that the MCC cells clearly exhibited distinguishable phenotypes from the articular chondrocytes. Additionally, a set of genes has been determined as potential markers to identify each MCC zone individually; Crab1 gene showed the highest enrichment while Clec3a was the most downregulated gene at the superficial layer, which consists of fibrous (FZ) and proliferative zones (PZ). Ingenuity Pathway Analysis revealed numerous altered signaling pathways; Leukocyte extravasation signaling pathway was predicted to be activated at all MCC zones, in particular mature and hypertrophic chondrocytes zones (MZ&HZ), when compared with femoral condylar cartilage (FCC). Whereas Superpathway of Cholesterol Biosynthesis showed predicted activation in both FZ and PZ as compared with deep MCC zones and FCC. Determining novel zone-specific differences of large group of potential genes, upstream regulators and pathways in healthy MCC would improve our understanding of molecular mechanisms on regional (zonal) basis, and provide new insights for future therapeutic strategies.Aisha M. BasudanMohammad Azhar AzizYanqi YangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-15 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Aisha M. Basudan Mohammad Azhar Aziz Yanqi Yang Implications of zonal architecture on differential gene expression profiling and altered pathway expressions in mandibular condylar cartilage
description	Abstract Mandibular condylar cartilage (MCC) is a multi-zonal heterogeneous fibrocartilage containing different types of cells, but the factors/mechanisms governing the phenotypic transition across the zones have not been fully understood. The reliability of molecular studies heavily rely on the procurement of pure cell populations from the heterogeneous tissue. We used a combined laser-capture microdissection and microarray analysis approach which allowed identification of differential zone-specific gene expression profiling and altered pathways in the MCC of 5-week-old rats. The bioinformatics analysis demonstrated that the MCC cells clearly exhibited distinguishable phenotypes from the articular chondrocytes. Additionally, a set of genes has been determined as potential markers to identify each MCC zone individually; Crab1 gene showed the highest enrichment while Clec3a was the most downregulated gene at the superficial layer, which consists of fibrous (FZ) and proliferative zones (PZ). Ingenuity Pathway Analysis revealed numerous altered signaling pathways; Leukocyte extravasation signaling pathway was predicted to be activated at all MCC zones, in particular mature and hypertrophic chondrocytes zones (MZ&HZ), when compared with femoral condylar cartilage (FCC). Whereas Superpathway of Cholesterol Biosynthesis showed predicted activation in both FZ and PZ as compared with deep MCC zones and FCC. Determining novel zone-specific differences of large group of potential genes, upstream regulators and pathways in healthy MCC would improve our understanding of molecular mechanisms on regional (zonal) basis, and provide new insights for future therapeutic strategies.
format	article
author	Aisha M. Basudan Mohammad Azhar Aziz Yanqi Yang
author_facet	Aisha M. Basudan Mohammad Azhar Aziz Yanqi Yang
author_sort	Aisha M. Basudan
title	Implications of zonal architecture on differential gene expression profiling and altered pathway expressions in mandibular condylar cartilage
title_short	Implications of zonal architecture on differential gene expression profiling and altered pathway expressions in mandibular condylar cartilage
title_full	Implications of zonal architecture on differential gene expression profiling and altered pathway expressions in mandibular condylar cartilage
title_fullStr	Implications of zonal architecture on differential gene expression profiling and altered pathway expressions in mandibular condylar cartilage
title_full_unstemmed	Implications of zonal architecture on differential gene expression profiling and altered pathway expressions in mandibular condylar cartilage
title_sort	implications of zonal architecture on differential gene expression profiling and altered pathway expressions in mandibular condylar cartilage
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/37cdb1648bde4b6f8189d1c7daa5309a
work_keys_str_mv	AT aishambasudan implicationsofzonalarchitectureondifferentialgeneexpressionprofilingandalteredpathwayexpressionsinmandibularcondylarcartilage AT mohammadazharaziz implicationsofzonalarchitectureondifferentialgeneexpressionprofilingandalteredpathwayexpressionsinmandibularcondylarcartilage AT yanqiyang implicationsofzonalarchitectureondifferentialgeneexpressionprofilingandalteredpathwayexpressionsinmandibularcondylarcartilage
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Implications of zonal architecture on differential gene expression profiling and altered pathway expressions in mandibular condylar cartilage

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