Decorinis aproteinthat in humans is encoded by theDCNgene.

DCN
Identifiers
AliasesDCN,Dcn, DC, DSPG2, PG40, PGII, PGS2, SLRR1B, mDcn, CSCD, decorin
External IDsOMIM:125255;MGI:94872;HomoloGene:22430;GeneCards:DCN;OMA:DCN - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001190451
NM_007833

RefSeq (protein)

NP_001177380
NP_031859

Location (UCSC)Chr 12: 91.14 – 91.18 MbChr 10: 97.32 – 97.35 Mb
PubMedsearch[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Decorin is aproteoglycanthat is on average 90 - 140kilodaltons(kDa) in molecular weight. It belongs to the small leucine-rich proteoglycan (SLRP) family and consists of a protein core containingleucine repeatswith aglycosaminoglycan(GAG) chain consisting of eitherchondroitin sulfate(CS) ordermatan sulfate(DS).

Decorin is a small cellular or pericellular matrix proteoglycan and is closely related in structure tobiglycanprotein. Decorin and biglycan are thought to be the result of agene duplication.This protein is a component ofconnective tissue,binds totype I collagenfibrils,and plays a role inmatrixassembly.[5]

Naming

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Decorin's name is a derivative of both the fact that it "decorates"collagen type I,and that it interacts with the "d" and "e" bands of fibrils of this collagen.

Function

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Decorin appears to influencefibrillogenesis,and also interacts withfibronectin,thrombospondin,thecomplement component C1q,epidermal growth factor receptor(EGFR) and transforming growth factor-beta (TGF-beta).

Decorin has been shown to either enhance or inhibit the activity ofTGF-beta 1.The primary function of decorin involves regulation during thecell cycle.

It has been involved in the regulation ofautophagy,ofendothelial celland inhibitsangiogenesis.This process is mediated by a high-affinity interaction withVEGFR2(vascular endothelial growth factor receptor) which leads to increased levels of tumor suppressor gene calledPEG3.[6]Other angiogenic growth factors that decorin inhibits areangiopoietin,hepatocyte growth factor (HGF) and platelet-derived growth factor (PDGF).[7]

Decorin has recently been established as amyokine.In this role, it promotes musclehypertrophyby binding withmyostatin.[8]

Clinical significance

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Keloid scarshave decreased decorin expression compared to healthyskin.[9]Development ofcongenital stromal corneal dystrophyis dependent on export and extracellular deposition of truncated decorin.[10]

Animal studies

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Infusion of decorin into experimental rodent spinal cord injuries has been shown to suppress scar formation and promote axon growth.

Decorin has been shown to have anti-tumorigenic properties in an experimental murine tumor model and is capable of suppressing the growth of various tumor cell lines.[11]The decorin-deficientknockout mouseshows reduced inflammatory reactions duringcontact dermatitisdue to a defect inleukocyterecruitment and alteredinterferon gammafunction.[12][13]

Interactions

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Decorin has been shown tointeractwith:

References

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  1. ^abcGRCh38: Ensembl release 89: ENSG00000011465Ensembl,May 2017
  2. ^abcGRCm38: Ensembl release 89: ENSMUSG00000019929Ensembl,May 2017
  3. ^"Human PubMed Reference:".National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^"Mouse PubMed Reference:".National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^"Entrez Gene: DCN decorin".
  6. ^Buraschi S, Neill T, Goyal A, Poluzzi C, Smythies J, Owens RT, et al. (July 2013)."Decorin causes autophagy in endothelial cells via Peg3".Proceedings of the National Academy of Sciences of the United States of America.110(28): E2582-91.Bibcode:2013PNAS..110E2582B.doi:10.1073/pnas.1305732110.PMC3710796.PMID23798385.
  7. ^Järveläinen H, Sainio A, Wight TN (April 2015)."Pivotal role for decorin in angiogenesis".Matrix Biology.43:15–26.doi:10.1016/j.matbio.2015.01.023.PMC4560244.PMID25661523.
  8. ^Kanzleiter T, Rath M, Görgens SW, Jensen J, Tangen DS, Kolnes AJ, et al. (July 2014). "The myokine decorin is regulated by contraction and involved in muscle hypertrophy".Biochemical and Biophysical Research Communications.450(2):1089–94.doi:10.1016/j.bbrc.2014.06.123.PMID24996176.
  9. ^Jumper N, Paus R, Bayat A (September 2015). "Functional histopathology of keloid disease".Histology and Histopathology.30(9):1033–57.doi:10.14670/HH-11-624.PMID25900252.
  10. ^Mellgren AE, Bruland O, Vedeler A, Saraste J, Schönheit J, Bredrup C, et al. (May 2015). "Development of congenital stromal corneal dystrophy is dependent on export and extracellular deposition of truncated decorin".Investigative Ophthalmology & Visual Science.56(5):2909–15.doi:10.1167/iovs.14-16014.PMID26029887.
  11. ^Sofeu Feugaing DD, Götte M, Viola M (January 2013). "More than matrix: the multifaceted role of decorin in cancer".European Journal of Cell Biology.92(1):1–11.doi:10.1016/j.ejcb.2012.08.004.PMID23058688.
  12. ^Seidler DG, Mohamed NA, Bocian C, Stadtmann A, Hermann S, Schäfers K, et al. (December 2011)."The role for decorin in delayed-type hypersensitivity".Journal of Immunology.187(11):6108–19.doi:10.4049/jimmunol.1100373.PMC5070385.PMID22043007.
  13. ^Bocian C, Urbanowitz AK, Owens RT, Iozzo RV, Götte M, Seidler DG (May 2013)."Decorin potentiates interferon-γ activity in a model of allergic inflammation".The Journal of Biological Chemistry.288(18):12699–711.doi:10.1074/jbc.M112.419366.PMC3642316.PMID23460644.
  14. ^abSchönherr E, Broszat M, Brandan E, Bruckner P, Kresse H (July 1998). "Decorin core protein fragment Leu155-Val260 interacts with TGF-beta but does not compete for decorin binding to type I collagen".Archives of Biochemistry and Biophysics.355(2):241–8.doi:10.1006/abbi.1998.0720.PMID9675033.
  15. ^Santra M, Reed CC, Iozzo RV (September 2002)."Decorin binds to a narrow region of the epidermal growth factor (EGF) receptor, partially overlapping but distinct from the EGF-binding epitope".The Journal of Biological Chemistry.277(38):35671–81.doi:10.1074/jbc.M205317200.PMID12105206.S2CID20575381.
  16. ^Iozzo RV, Moscatello DK, McQuillan DJ, Eichstetter I (February 1999)."Decorin is a biological ligand for the epidermal growth factor receptor".The Journal of Biological Chemistry.274(8):4489–92.doi:10.1074/jbc.274.8.4489.PMID9988678.S2CID32175802.
  17. ^Hildebrand A, Romarís M, Rasmussen LM, Heinegård D, Twardzik DR, Border WA, Ruoslahti E (September 1994)."Interaction of the small interstitial proteoglycans biglycan, decorin and fibromodulin with transforming growth factor beta".The Biochemical Journal.302 ( Pt 2) (2):527–34.doi:10.1042/bj3020527.PMC1137259.PMID8093006.
  18. ^Takeuchi Y, Kodama Y, Matsumoto T (December 1994)."Bone matrix decorin binds transforming growth factor-beta and enhances its bioactivity".The Journal of Biological Chemistry.269(51):32634–8.doi:10.1016/S0021-9258(18)31681-8.PMID7798269.
  19. ^abMerline R, Moreth K, Beckmann J, Nastase MV, Zeng-Brouwers J, Tralhão JG, et al. (November 2011)."Signaling by the matrix proteoglycan decorin controls inflammation and cancer through PDCD4 and MicroRNA-21".Science Signaling.4(199): ra75.doi:10.1126/scisignal.2001868.PMC5029092.PMID22087031.

Further reading

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