title: Matrix Metalloproteinases 2 and 9 Polymorphism in Patients With Myeloproliferative Diseases: A STROBE-Compliant Observational Study.
abstract: Chronic myeloproliferative disorders such as polycythemia vera (PV), essential thrombocytosis (ET), and idiopathic myelofibrosis arise from clonal proliferation of neoplastic stem cells in the bone marrow. Matrix metalloproteinases (MMPs) are a family of zinc-dependent endopeptidases that have potential to degrade all types of extracellular matrix (ECM) and also play a role in remodeling of the ECM. It is known that MMPs play a role in bone marrow remodeling.The primary goal of our study is to explore the relationship between chronic myeloproliferative diseases and some of MMP gene polymorphisms. The demonstration of a relationship will help to understand whether these polymorphisms may be a potential early diagnosis marker of the diseases.Patients were selected from outpatient clinics of Turgut Ozal University Hospital, Ankara, Turkey, between December 2010 and May 2011. Twenty-eight patients that previously diagnosed and followed-up with PV, 17 with secondary polycythemia (SP), and 12 with ET were enrolled in the study, along with a control group of 22 healthy people.DNA was isolated from peripheral blood. Using polymerase chain reaction-restriction fragment length polymorphism method, MMP2 and MMP9 gene polymorphisms were analyzed with agarose gel electrophoresis. There was a statistically significant difference between the study groups and the control group in terms of Gln279Arg polymorphisms rates of MMP9. The highest MMP9 Gln279Arg polymorphism rate was observed in the ET group. But nobody from the control group had polymorphic MMP9. There was no statistically significant difference between the groups in terms of MMP2-735 C > T polymorphism rates.In conclusion, MMP9 gene Gln279Arg polymorphism was associated with ET, SP, and PV diseases. Hence, we believe that these gene polymorphisms may play a role in the mechanism of bone marrow fibrosis and may be a factor that increases the risk of thrombosis. Illumination of the molecular basis of the relationship between MMP-thrombosis and MMP-fibrosis provides a better understanding of the pathophysiology of PV and ET diseases and will allow new approaches to diagnosis and treatment.
authors.affiliation: From the Department of Internal Medicine (SM, DA); Division of Hematology (OSB, AK); Department of Medical Genetics (MA, EU, OFH, MG, EG); Department of Medical Microbiology (HUA); and Department of Otolaryngology (MG), Turgut Özal University Faculty of Medicine, Ankara, Turkey.
authors.forename: Senem
authors.initials: S
authors.lastname: Maral
authors.forename: Muradiye
authors.initials: M
authors.lastname: Acar
authors.forename: Ozlem Sahin
authors.initials: OS
authors.lastname: Balcik
authors.forename: Eyyup
authors.initials: E
authors.lastname: Uctepe
authors.forename: Omer Faruk
authors.initials: OF
authors.lastname: Hatipoglu
authors.forename: Derya
authors.initials: D
authors.lastname: Akdeniz
authors.forename: Hatice Uludag
authors.initials: HU
authors.lastname: Altun
authors.forename: Ali
authors.initials: A
authors.lastname: Kosar
authors.forename: Mehmet
authors.initials: M
authors.lastname: Gunduz
authors.forename: Esra
authors.initials: E
authors.lastname: Gunduz
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008297:Male; D020778:Matrix Metalloproteinase 2 / Q000235:genetics; D020780:Matrix Metalloproteinase 9 / Q000235:genetics; D020782:Matrix Metalloproteinases / Q000235:genetics*; D008875:Middle Aged; D009196:Myeloproliferative Disorders / Q000235:genetics*; D011110:Polymorphism, Genetic; D014421:Turkey / Q000453:epidemiology
chemical_list: D020782:Matrix Metalloproteinases; C522361:MMP2 protein, human; D020778:Matrix Metalloproteinase 2; C579270:MMP9 protein, human; D020780:Matrix Metalloproteinase 9