Etiketter

måndag 19 november 2018

MMP-28 (15q21.1) Epilysiini

 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2810947/

Epilysin (MMP-28) was first cloned from the human keratinocyte and testis cDNA libraries, and is expressed in many tissues such as lung, placenta, heart, gastrointestinal tract and testis (). The enzyme expressed in basal keratinocytes in skin is considered to function in wound repair (). It is also elevated in cartilage from patients with osteoarthritis and rheumatoid arthritis (; ). Overexpression of recombinant MMP-28 in lung adenocarcinoma cells induces irreversible epithelial mesenchymal transition, accompanied by cell surface loss of E-cadherin, processing of latent TGFβ complex and increased levels of TGFβ, along with up-regulation of MT1-MMP and MMP-9 and collagen invasive activity ().

Thesis 2018: TIMP3 (SFD) , MMP-28 (epilysiini) . Raamissa COPD ja IPF

2018 Oct 30;189:23-33. doi: 10.1016/j.jprot.2018.02.027. Epub 2018 Mar 1.

Quantitative proteomic characterization of the lung extracellular matrix in chronic obstructive pulmonary disease and idiopathic pulmonary fibrosis.

Abstract

Remodeling of the extracellular matrix (ECM) is a common feature in lung diseases such as chronic obstructive pulmonary disease (COPD) and idiopathic pulmonary fibrosis (IPF). Here, we applied a sequential tissue extraction strategy to describe disease-specific remodeling of human lung tissue in disease, using end-stages of COPD and IPF. Our strategy was based on quantitative comparison of the disease proteomes, with specific focus on the matrisome, using data-independent acquisition and targeted data analysis (SWATH-MS). Our work provides an in-depth proteomic characterization of human lung tissue during impaired tissue remodeling. In addition, we show important quantitative and qualitative effects of the solubility of matrisome proteins. COPD was characterized by a disease-specific increase in ECM regulators, metalloproteinase inhibitor 3 (TIMP3) and matrix metalloproteinase 28 (MMP-28), whereas for IPF, impairment in cell adhesion proteins, such as collagen VI and laminins, was most prominent. For both diseases, we identified increased levels of proteins involved in the regulation of endopeptidase activity, with several proteins belonging to the serpin family. The established human lung quantitative proteome inventory and the construction of a tissue-specific protein assay library provides a resource for future quantitative proteomic analyses of human lung tissues. SIGNIFICANCE: We present a sequential tissue extraction strategy to determine changes in extractability of matrisome proteins in end-stage COPD and IPF compared to healthy control tissue. Extensive quantitative analysis of the proteome changes of the disease states revealed altered solubility of matrisome proteins involved in ECM regulators and cell-ECM communication. The results highlight disease-specific remodeling mechanisms associated with COPD and IPF.

KEYWORDS:

COPD; IPF; Lung tissue; Matrisome; Quantitative proteomics; SWATH-MS
PMID:
29501846
DOI:
10.1016/j.jprot.2018.02.027

TIMP3 ja sirtuiinit Laaja artikkeli josa piilee myös TIMP3

https://www.sciencedirect.com/science/article/pii/S0925443915000654


TIMP1/MMP tasapaino ja SIRTUIINI1: Raameissa COPD ja emfyseema

Abstract
Sirtuin1 (SIRT1), a protein/histone deacetylase, protects against the development of pulmonary emphysema
However, the molecular mechanisms underlying this observation remain elusive. The imbalance of tissue inhibitor of matrix metalloproteinases (TIMPs)/matrix metalloproteinases (MMPs) plays an important role in the pathogenesis of chronic obstructive pulmonary disease (COPD)/emphysema.
 We hypothesized that SIRT1 protects against emphysema by redressing the imbalance between MMPs and TIMPs. 
To test this hypothesis, SIRT1 deficient and overexpressing/transgenic mice were exposed to cigarette smoke (CS). The protein level and activity of MMP-9 were increased in lungs of SIRT1 deficient mice exposed to CS as compared to WT littermates, which were attenuated by SIRT1 overexpression. SIRT1 deficiency decreased the level of TIMP-1, which was augmented in SIRT1 transgenic mice as compared to WT littermates by CS. However, the level of MMP-2, MMP-12, TIMP-2, TIMP-3, or TIMP-4 was not altered by SIRT1 in response to CS exposure. SIRT1 reduction was associated with imbalance of TIMP-1 and MMP-9 in lungs of smokers and COPD patients. 
Mass spectrometry and immunoprecipitation analyses revealed that TIMP-1 acetylation on specific lysine residues was increased, whereas its interaction with SIRT1 and MMP-9 was reduced in mouse lungs with emphysema, as well as in lungs of smokers and COPD patients. SIRT1 deficiency increased CS-induced TIMP-1 acetylation, and these effects were attenuated by SIRT1 overexpression. These results suggest that SIRT1 protects against COPD/emphysema via redressing the TIMP-1/MMP-9 imbalance involving TIMP-1 deacetylation. Thus, redressing the TIMP-1/MMP-9 imbalance by pharmacological activation of SIRT1 is an attractive approach in the intervention of COPD.

Kertauksena kaikki neljä TIMP ja niiden geenit

Kuvitella, niitä ei ole vieläkään enemmän kuin neljä kuten monta vuotta sitten. Tai sitten niitä ei ole kovin tarkkaan tutkittu. Ne ovat olleet aika huomaamattomia verrattuna MMP-joukon massiivisiin haitta-aikaansaannoksiin.

Niillä voi olla jokin muu oma funktio kuin vain olla MMPi.

 https://www.genenames.org/cgi-bin/genefamilies/set/892

Tissue inhibitor of metalloproteinase: The matrix metalloproteinases are inhibited by specific endogenous tissue inhibitors of metalloproteinases (TIMPs), which comprise a family of four protease inhibitors: TIMP1, TIMP2, TIMP3 and TIMP4. Overall, all MMPs are inhibited by TIMPs once they are activated but the gelatinases (MMP-2 and MMP- ) can form complexes with TIMPs when the enzymes are in the latent form. The complex of latent MMP-2 (pro-MMP-2)with TIMP-2 serves to facilitate the activation of pro-MMP-2 at the cell surface by MT1-MMP ( MMP-14 ), a membrane-anchored MMP. The role of the pro-MMP-9/TIMP-1 complex is still unknown. [Source: Wikipedia

Genes contained within the family: 4

l
TIMP1 TIMP1

metallopeptidase inhibitor 1
EPO, (Xp11.3)
TIMP2 TIMP 2metallopeptidase inhibitor 2
CSC-21K
(17q25.3)
TIMP3 TIMP3 metallopeptidase inhibitor 3
SFD
(22q12.3) 
TIMP4 TIMP4 metallopeptidase inhibitor 4


TIMP-1

Function
Metalloproteinase inhibitor that functions by forming one to one complexes with target metalloproteinases, such as collagenases, and irreversibly inactivates them by binding to their catalytic zinc cofactor. Acts on MMP1, MMP2, MMP3, MMP7, MMP8, P9, MMP10, MMP11, MMP12, MMP13 and MMP16. Does not act on MMP14. Also functions as a growth factor that regulates cell differentiation, migration and cell death and activates cellular signaling cascades via CD63 and ITGB1. Plays a role in integrin signaling. Mediates erythropoiesis in vitro; but, unlike IL3, it is species-specific, stimulating the growth and differentiation of only human and murine erythroid progenitors.12 Publications

TIMP-2 

 

TIMP-3 

A novel function for tissue inhibitor of metalloproteinases-3 (TIMP3): inhibition of angiogenesis by blockage of VEGF binding to VEGF receptor-2.
Qi JH et al. Nat. Med. 2003 Apr;9(4):407-415

TACE, SIRT-1 ,TIMP-3, IBD, resveratroli

https://www.ncbi.nlm.nih.gov/pubmed/24548422

2014 Mar;66(1):30-9. doi: 10.1016/j.cyto.2013.12.010. Epub 2014 Jan 4.

Involvement of TACE in colon inflammation: a novel mechanism of regulation via SIRT-1 activation.

Abstract

TNF-α converting enzyme (TACE) processes the membrane TNF-α to release the bioactive soluble TNF-α. Several evidences suggest the involvement of TNF-α and TACE in inflammatory bowel disease (IBD). Tissue inhibitor of metalloproteinase (TIMP)-3, an endogenous inhibitor of TACE, is positively associated with silent information regulator (SIRT)-1. We aimed to study the expression of TACE, TIMP-3 and SIRT-1 at different stages of colitis and how TACE is regulated in response to SIRT-1 activation.

 Acute colitis was induced by 3.5% dextran sulfate sodium (DSS) in drinking water for 5days and levels of cytokines and mRNA expression of TACE, TIMP-3 and SIRT-1 were measured in colon at different time intervals. Next, the effect of SIRT-1 activator (resveratrol) or a selective TACE inhibitor (compound 11p) treatment was evaluated. Elevated levels of TNF-α, interleukin (IL)-6, IL-1β, interferon (IFN)-γ and IL-17 were observed during DSS exposure phase which restored to the normal level after DSS removal. A significant increase in TACE and suppression in TIMP-3 and SIRT-1 mRNA level was observed during DSS exposure phase which reverts back to normal towards the remission phase. Treatment with resveratrol significantly elevated SIRT-1 and TIMP-3 and suppressed TACE mRNA expression and was associated with amelioration of disease. Furthermore, treatment with selective TACE inhibitor significantly suppressed body weight loss, disease activity index, colonic myeloperoxidase activity and the elevated levels of cytokines after DSS challenge. These results strongly emphasize the involvement of TACE in colon inflammation and inhibition of TACE directly or indirectly via SIRT-1 activation ameliorates colitis.

KEYWORDS:

Inflammatory bowel disease; SIRT-1; TNF-α; TNF-α converting enzyme
PMID:
24548422
DOI:
10.1016/j.cyto.2013.12.010

onsdag 14 november 2018

ADAM17 ja EBOVgp

Bildresultat för ADAM17, Ebola virus glycoprotein

TACE/ADAM17 (2p25.1) uusimmat artikkelit PubMed . MUC1- sheddaasi

 2016 PubMed artikkeleita:  ADAM17/ TACE 

https://www.ncbi.nlm.nih.gov/gene/6868

Preferred Names
 a disintegrin and metalloproteinase domain-containing protein 17
Names
ADAM metallopeptidase domain 18
TNF-alpha convertase
TNF-alpha converting enzyme
snake venom-like protease
tumor necrosis factor, alpha, converting enzyme

Also known as
CSVP; TACE; NISBD; ADAM18; CD156B; NISBD1
Summary
This gene encodes a member of the ADAM (a disintegrin and metalloprotease domain) family. Members of this family are membrane-anchored proteins structurally related to snake venom disintegrins, and have been implicated in a variety of biologic processes involving cell-cell and cell-matrix interactions, including fertilization, muscle development, and neurogenesis. The encoded preproprotein is proteolytically processed to generate the mature protease. The encoded protease functions in the ectodomain shedding of tumor necrosis factor-alpha, in which soluble tumor necrosis factor-alpha is released from the membrane-bound precursor. This protease also functions in the processing of numerous other substrates, including cell adhesion proteins, cytokine and growth factor receptors and epidermal growth factor (EGF) receptor ligands. The encoded protein also plays a prominent role in the activation of the Notch signaling pathway. Elevated expression of this gene has been observed in specific cell types derived from psoriasis, rheumatoid arthritis, multiple sclerosis and Crohn's disease patients, suggesting that the encoded protein may play a role in autoimmune disease. [provided by RefSeq, Feb 2016]

Conserved Domains (4) summary
smart00050
Location:484560
DISIN; Homologues of snake disintegrins
cd04270
Location:223477
ZnMc_TACE_like; Zinc-dependent metalloprotease; TACE_like subfamily. TACE, the tumor-necrosis factor-alpha converting enzyme, releases soluble TNF-alpha from transmembrane pro-TNF-alpha.
pfam01562
Location:56152
Pep_M12B_propep; Reprolysin family propeptide
pfam16698
Location:581641
ADAM17_MPD; Membrane-proximal domain, switch, for ADAM17

 

Related articles in PubMed

GeneRIFs: Gene References Into FunctionsWhat's a GeneRIF?

ADAM17 (TACE) substraatit , EBOV glykoproteiini joukossa

 2019 https://www.ncbi.nlm.nih.gov/pubmed/28893955/

NK -  Cytokiinit -  NKG2D akselista ADAM17 aktiivisuus lisääntyy ja TNF-alfaa vapautuu.

2017 Oct 15;199(8):2865-2872. doi: 10.4049/jimmunol.1700647. Epub 2017 Sep 11.
NKG2D Signaling between Human NK Cells Enhances TACE-Mediated TNF-α Release.


 2018

https://www.sciencedirect.com/science/article/pii/S0167488917301878#t0005

1. Introduction

It was discovered in 1988 that the pro-inflammatory mediator tumor necrosis factor alpha (TNFα) was synthesized as a transmembrane protein, which needs to be proteolytically cleaved to be systemically active [1]. Since then, many researchers tried to identify the responsible proteolytic activity, which was believed to be an important therapeutic target. 

In 1994, it was reported that the TNFα cleaving enzyme was a metalloprotease (MMP), which could be inhibited by hydroxamic acid compounds. This hydroxamate not only reduced LPS-induced TNFα levels in vivo but also rescued mice from lethal septic shock confirming the TNFα cleaving enzyme being a promising therapeutic target [2].

(1997 ) Three years later, cDNAs coding for human and murine TNFα cleaving enzyme were cloned [3], [4], which showed that the enzyme is a membrane bound metalloprotease (MT-MMP) , which belonged to the family of disintegrin metalloproteases called adamalysins or ADAMs [5]. Subsequently, the TNFα cleaving enzyme was renamed ADAM17 [5].

ADAM17 knock-out animals turned out not to be viable [6]. Moreover, they showed an open eye phenotype at birth, which was reminiscent of mice lacking transforming growth factor alpha (TGFα), a ligand of the epidermal growth factor receptor (EGF-R). Since all ligands of the EGF-R are transmembrane proteins, which need to be cleaved in order to act systemically [7] it was hypothesized that ligands of the EGF-R were substrates of ADAM17 [6]. This was supported by data indicating that l-selectin, IL-6R and TGFα were processed by the same protease [8]. Meanwhile we know that ADAM17 has more than 80 substrates ranging from cytokines, growth factors, receptors to many cell adhesion molecules (Table 1) [9]. Therefore, it is not surprising that the biology of ADAM17 is complex and the protease is involved in the regulation of many body functions and developmental processes.

2. The shedding enzyme ADAM17

At least 10% of all cell surface proteins are believed to be proteolytically cleaved leading to the release of soluble proteins [10], [11]. As outlined above, ADAM17 was the first shedding protease to be molecularly characterized and it was shown to consist of an N-terminal signal sequence followed by a pro-domain, a metalloproteinase or catalytic domain, a disintegrin domain, a cysteine-rich membrane proximal domain, a single transmembrane domain and a cytoplasmic portion (Fig. 1) [3], [4].



Table 1. Substrates of ADAM17.
Immune systemDevelopment, differentiationCell adhesionOthers
IL-1RIITGFαALCAMACE-2
IL-6RHb-EGFCD44APP
IL-15RAREGCD62L (L-selectin)APP-like protein2
CX3CL1 (fractalkine)EpigenCollagen XVIICarbonic hydrolase 9
M-CSFREREGDesmoglein 2Prion protein
TNF-RINRG1EpCamEbola virus glycoprotein
TNF-RIIFLT-3LICAM-1EPCR
LDL-RKL-1JAM-AGPIba
SORL1KL-2L1-CAMGPV
SORT1JaggedNCAMGPVI
SORCS1DLL1Nectin-4Klotho
SORCS3Notch1SynCAM1Muc-1, Episialin
TNFαGH-RVACM-1NPR
Lymphotoxin αIGF2-R
Pre-adipocyte factor
RANKL (TRANCE)HER4 (ErbB4)
Ptprz
CSF-1TrkA

TIM-1VEGF-R2

TIM-3LYPD3

TIM-4PMEL17

MIC-APTP-LAR

MIC-BSEMA4D

LAG-3Syndecan1

CD16Syndecan4

CD30 (TNFRSF8)TEMEFF2

CD36Vasorin

CD40 (TNFRSF5)


CD89


CD91 (APOER)


CD163


ICOS-L




MUC1 musiini, TACE ja MT-MMP

MUC1 tietoa lisää:

Cell Death Dis. 2014 Oct; 5(10): e1438.
MUC1 irtoaminen ”lehteily” tai ”hilseily” epiteelisolusta tyviosansa kompleksista ei tapahdu ilman säätelyä ja siinä säätelevät ” sheddase” entsyymit ovat MT-MMP ja TACE.