Dataset Information

The extracellular matrix protein signatures of the outer and inner zone of the rat adrenal cortex

ABSTRACT: Different sites and changes in the tissue microenvironment have been associated with the cortex of adrenal gland functionality, maintenance, and renewal. Here we describe the differences between the extracellular matrix (ECM) signatures of the outer (OF) and inner fractions (IF) of the rat adrenal cortex. We compared the proteomic profiles of decellularized OF and IF rat adrenal samples followed by the analysis of the proteomic profiles of male and female samples. Our analysis of OF and IF samples simultaneously showed a total of 186 proteins, 69 proteins were identified in OF and 144 in IF. Ninety-two proteins were in common to both fractions, 5 proteins were exclusive to OF, and 89 proteins were exclusive to IF. A total of 42 proteins were assigned as ECM, 13 as structural ECM constituents, 17 as ECM components, and 12 as related to functional processes in ECM. Col14a1, Fbn2, and Ltbp4 were exclusive to and upregulated in the OF while Gpt2, Chga, Chgb, and Plg were exclusive to and upregulated in the IF. In addition, Nid2 and Lama2, both ECM components, were identified as upregulated in female OF and male IF adrenal, respectively. Next, we validated the main findings by using qPCR, histochemistry, and immunohistochemistry approaches.

INSTRUMENT(S): LTQ Orbitrap Velos

ORGANISM(S): Rattus Norvegicus (rat)

TISSUE(S): Adrenal Gland

SUBMITTER: Veronica Santiago

LAB HEAD: Claudimara Ferini

PROVIDER: PXD046828 | Pride | 2024-08-09

REPOSITORIES: Pride

ACCESS DATA

Dataset's files

Source:

Items per page:

1 - 5 of 14

Publications

Extracellular Matrix Protein Signatures of the Outer and Inner Zones of the Rat Adrenal Cortex.

Kremer Jean Lucas JL Santiago Veronica Feijoli VF Bongiovani Rodrigues Fernanda F Auricino Thais Barabba TB Freitas Danilo Henriques de Oliveira DHO Palmisano Giuseppe G Lotfi Claudimara Ferini Pacicco CFP

Journal of proteome research 20240717 8

This study analyzes the extracellular matrix (ECM) signatures of the outer (OF = capsule + subcapsular + zona glomerulosa cells) and inner fractions (IF = zona fasciculata cells) of the rat adrenal cortex, which comprise two distinct microenvironment niches. Proteomic profiles of decellularized OF and IF samples, male and female rats, identified 252 proteins, with 32 classified as ECM-component and ECM-related. Among these, 25 proteins were differentially regulated: 17 more abundant in OF, inclu ...[more]

PMID: 39018382

Similar Datasets

Project description:Tendons play a critical role in the transmission of forces between muscles and bones, and chronic tendon injuries and diseases are among the leading causes of musculoskeletal disability. For many types of tendinopathies, women have worse clinical outcomes than men. It is possible that sex-based differences in tendon morphology, composition and mechanical properties may explain the greater susceptibility of women to develop tendinopathies. Our objective was to evaluate the mechanical properties, biochemical composition, transcriptome, and cellular activity of plantarflexor tendons from four month old male and female C57Bl/6 mice using in vitro biomechanics, mass spectrometry-based proteomics, genome-wide expression profiling, and cell culture techniques. Differences between groups were tested using t-tests (Î±=0.05). While the Achilles tendons of male mice were approximately 6% larger than female mice (P<0.05), the cell density of female mice was around 19% larger than males (P<0.05). No significant differences in the length (P=0.34), peak force (P=0.86), peak stress (P=0.52) or energy loss during stretch (P=0.94) of plantaris tendons were observed. Mass spectrometry proteomics analysis revealed no significant difference between sexes in the abundance of major extracellular matrix (ECM) proteins like collagen types I (P=0.30) and III (P=0.68), but female mice had approximately two-fold elevations (P<0.05) in different minor ECM proteins such as fibronectin, periostin, and tenascin. Using microarray analysis, there was no significant differences (P>0.05) in the expression of most major and minor ECM genes, and in the expression of genes involved in tendon fibroblast specification or proliferation. Whole tendon qPCR analysis showed significant expression differences in elastin, scleraxis, and tenomodulin. Cell culture techniques to test the effects of sex-specific extracellular environment on cellular activity show significant differences in gene expression of type I and III collagen, Ki67, scleraxis, and tenomodulin. Histologic analysis demonstrated that males have larger tendon cross-sectional area and lower cell density when compared to females. However, there were no differences between the sexes in the mechanical properties of tendons or in the majority of primary structural extracellular matrix proteins, although elevations were observed in some minor ECM proteins. Microarray analysis also showed no significant sex-based differences in the expression of major genes associated with collagen composition, extracellular components and turnover, and fibroblast proliferation. Cell culture tests of non-autonomous cellular activity show no major signals for ECM synthesis nor fibroblast proliferation. Our results indicate that while male mice expectedly had larger tendons, male and female mice have very similar mechanical properties and biochemical composition, with small increases in minor ECM proteins and proteoglycans in female tendons. The role that these minor ECM proteins and proteoglycans play in tendon repair should be evaluated in future studies. No treatment administered, study done to evaluate normal expression profiles of male and female tenocytes. This analysis is based on a Mouse Gene ST 2.1 strip that was processed in the microarray facility in May 2015 using the wt-pico kit.

			Action	DRS
	FE-femea_n1.raw	Raw
	FE-femea_n2.raw	Raw
	FE-femea_n3.raw	Raw
	FE-macho_n1.raw	Raw
	FE-macho_n2.raw	Raw