RGD Reference Report - Expression of MMP-7, MMP-9, TIMP-1 and TIMP-2 mRNA in lung tissue of patients with non-small cell lung cancer (NSCLC) and benign pulmonary disease. - Rat Genome Database

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Expression of MMP-7, MMP-9, TIMP-1 and TIMP-2 mRNA in lung tissue of patients with non-small cell lung cancer (NSCLC) and benign pulmonary disease.

Authors: Safranek, J  Pesta, M  Holubec, L  Kulda, V  Dreslerova, J  Vrzalova, J  Topolcan, O  Pesek, M  Finek, J  Treska, V 
Citation: Safranek J, etal., Anticancer Res. 2009 Jul;29(7):2513-7.
RGD ID: 5129528
Pubmed: PMID:19596921   (View Abstract at PubMed)

The expression of matrix metallo-proteinases (MMP-7 and MMP-9) and tissue inhibitors of metalloproteinases (TIMP-1 and TIMP-2), which are involved in the degradation of the extracellular matrix (ECM) and tumor growth, was investigated in normal lung tissue, tissue of benign pulmonary diseases and non-small cell lung cancer (NSCLC) tissue. PATIENTS AND METHODS: Tumor tissue and surrounding carcinoma-free lung tissue samples were obtained from 91 patients with NSCLC who had undergone surgery in the years 2005-2007 as well as lung tissue from 12 patients operated on for 'benign' bullous emphysema or interstitial lung disease. The mRNA was isolated from the tissues and the expression of mRNA was assessed using a real-time RT PCR method. RESULTS: Significantly higher expression of MMP-7, MMP-9 and TIMP-1 mRNA was demonstrated in the NSCLC tissue in comparison with the normal lung tissue from the same patients (p=0.0003, p<0.0001 and p=0.0018, respectively). Similar results for MMP-7, MMP-9 and TIMP-1 were found in the histological subgroups: squamous cell lung cancer vs. normal tissue (p=0.0198, p=0.0015 and p=0.0366, respectively), and adenocarcinoma vs. normal tissue (p=0.0045, p<0.0001 and p=0.0140, respectively). The expression of MMP-7 was found to be significantly higher in tumor tissue vs. lung tissue of the benign diseases (p=0.0086) and similar results were also recorded in the histological subgroups: squamous cell lung cancer vs. benign tissue (p=0.0171) and adenocarcinoma vs. benign tissue (p=0.0135). The expression of MMP-9 was significantly higher only in the adenocarcinoma subgroup vs. the benign tissue (p=0.0412). No differences in the expression of mRNA between stage IA and stages IB-IIIB of NSCLC were recorded. CONCLUSION: Significantly higher expression of MMP-7 and MMP-9 in tumor tissue than in the surrounding tissue or in benign lung disease tissue supports the notion of an important role of these metalloproteinases in the growth of lung carcinoma. TIMP-1 expression is increased only in carcinoma, but not in benign lung disease.



RGD Manual Disease Annotations    Click to see Annotation Detail View

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
MMP7HumanLung Neoplasms  IEP mRNA:increased expression:lungRGD 
Mmp7RatLung Neoplasms  ISOMMP7 (Homo sapiens)mRNA:increased expression:lungRGD 
Mmp7MouseLung Neoplasms  ISOMMP7 (Homo sapiens)mRNA:increased expression:lungRGD 
MMP7Humanlung non-small cell carcinoma  IEP mRNA:increased expression:lungRGD 
Mmp7Ratlung non-small cell carcinoma  ISOMMP7 (Homo sapiens)mRNA:increased expression:lungRGD 
Mmp7Mouselung non-small cell carcinoma  ISOMMP7 (Homo sapiens)mRNA:increased expression:lungRGD 

Objects Annotated

Genes (Rattus norvegicus)
Mmp7  (matrix metallopeptidase 7)

Genes (Mus musculus)
Mmp7  (matrix metallopeptidase 7)

Genes (Homo sapiens)
MMP7  (matrix metallopeptidase 7)


Additional Information