The effect of polymorphisms in the promoter region of the MMP-1 gene on the occurrence and invasiveness of hypophyseal adenoma

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dc.authoridSahin, Fikrettin/0000-0003-1503-5567
dc.authoridBayrak, Omer Faruk/0000-0001-7562-6604
dc.authoridElmaci, Ilhan/0000-0001-9433-0307
dc.contributor.authorAltas, Murat
dc.contributor.authorBayrak, Omer Faruk
dc.contributor.authorAyan, Erdogan
dc.contributor.authorBolukbasi, Fatihhan
dc.contributor.authorSilav, Gokalp
dc.contributor.authorCoskun, Kerim Kenan
dc.contributor.authorCulha, Mustafa
dc.date.accessioned2024-09-18T20:27:56Z
dc.date.available2024-09-18T20:27:56Z
dc.date.issued2010
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractThe matrix metalloproteinase-1 enzyme (MMP-1, also called collagenase 1) plays a key role in turnover of collagen fibers in the intercellular matrix. Insertion of a guanine residue was found within the promoter region of the MMP-1 gene. We found that MMP-1 levels increased approximately twofold over normal when this insertion was present, enabling MMP-1 to facilitate tumor invasion and metastasis. MMP-1 is also believed to play a role in tumor development. The aim of our study is to investigate the effect of polymorphisms in the promoter region of the MMP-1 gene on the development of benign and invasive hypophyseal adenomas. Thirty patients with hypophyseal adenomas diagnosed by radiological examination underwent surgical removal, and the diagnosis was confirmed using immunohistochemical staining of the pathology specimens. We found that ten of these patients had invasive adenomas confirmed by radiological examination and immunohistochemical staining. DNA isolation was performed on all specimens, and 5-cc venous blood samples were obtained from all patients as well as 30 volunteers using the Qiagen QIAquick kit. Promoter regions of MMP-1 genes from the DNA samples were amplified using polymerase chain reaction (PCR) and primers designed for the site-directed mutation method. Following PCR, a guanine residue within the promoter region of the MMP-1 gene was identified using the restriction fragment length polymorphism method and the ALU I restriction enzyme. Three genotypes were detected in a genotyping assay: 2G/2G, 1G/2G, and 1G/1G. Of the surgically treated patients, 36.6% had the 2G/2G genotype, 46.6% had the 1G/2G genotype, and 16.6% had the 1G/1G genotype. The 2G allele frequency was found to be 83.4%. In 90% of cases of invasive adenoma, a homozygous 2G/2G genotype was detected. The risk for development of hypophyseal adenoma may be greater in patients with the 2G allele. In cases of existing hypophyseal adenoma, those with the homozygous 2G allele tend to be invasive.en_US
dc.identifier.doi10.1007/s00701-010-0671-0
dc.identifier.endpage1617en_US
dc.identifier.issn0001-6268
dc.identifier.issn0942-0940
dc.identifier.issue9en_US
dc.identifier.pmid20437278en_US
dc.identifier.scopus2-s2.0-77956190765en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1611en_US
dc.identifier.urihttps://doi.org/10.1007/s00701-010-0671-0
dc.identifier.urihttps://hdl.handle.net/20.500.12483/10622
dc.identifier.volume152en_US
dc.identifier.wosWOS:000281246500023en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherSpringer Wienen_US
dc.relation.ispartofActa Neurochirurgicaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectHypophyseal adenomaen_US
dc.subjectMMPen_US
dc.subjectGenomeen_US
dc.subjectPromoter regionen_US
dc.titleThe effect of polymorphisms in the promoter region of the MMP-1 gene on the occurrence and invasiveness of hypophyseal adenomaen_US
dc.typeArticleen_US

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