title: Matrix metalloproteinase (MMP) -2, -7 and -9 promoter polymorphisms in colorectal cancer in ethnic Kashmiri population - A case-control study and a mini review.
abstract: Matrix metalloproteinases (MMPs) are proteolytic enzymes that play a pivotal role in the transformation and progression of tumors at all stages, especially during the invasion and metastasis. The aim of this study was to determine the genetic association of MMP2, MMP7 and MMP9 promoter polymorphisms with colorectal cancer (CRC) susceptibility and development risk in ethnic Kashmiri population. The genotype frequencies of MMP2-1306C/T, MMP7-181A/G and MMP9-1562C/T SNPs were compared between 142 CRC patients and 184 healthy controls by using PCR-RFLP method. The association between all the three MMP promoter polymorphisms and the modulation of risk of CRC was found to be significant (p≤0.05). The heterozygous genotype (CT) of MMP2-1306C/T SNP and variant genotype (GG) of MMP7-181A/G SNP showed a significant association with decreased risk for the development of CRC [OR, 0.61 (95%CI, 0.37-1.01); p=0.05 and OR, 0.43 (95%CI, 0.20-0.90); p=0.02, respectively] whereas the heterozygous genotype (CT) of MMP9-1562C/T SNP showed a significant association with increased risk for the development of colorectal cancer [OR, 1.88 (95%CI, 1.11-3.18); p=0.02]. Further, the less common MMP9-1562T allele was found to be significantly associated with an increased risk of colorectal cancer [OR, 1.74 (95%CI, 1.15-2.62); p=0.007]. Our results suggest that these MMP2, MMP7 and MMP9 promoter polymorphisms play a role as one of the key modulators of the risk of developing colorectal cancer in Kashmiri population.
authors.affiliation: Department of Biotechnology, University of Kashmir, Hazratbal, Srinagar, Kashmir, India.
authors.forename: Mujeeb Zafar
authors.initials: MZ
authors.lastname: Banday
authors.affiliation: Department of Basic Medical Sciences, College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.
authors.forename: Aga Syed
authors.initials: AS
authors.lastname: Sameer
authors.affiliation: Department of Biotechnology, University of Kashmir, Hazratbal, Srinagar, Kashmir, India.
authors.forename: Ashaq Hussain
authors.initials: AH
authors.lastname: Mir
authors.affiliation: Department of Biotechnology, University of Kashmir, Hazratbal, Srinagar, Kashmir, India.
authors.forename: Taseem A
authors.initials: TA
authors.lastname: Mokhdomi
authors.affiliation: Department of Surgery, Sher-I-Kashmir Institute of Medical Sciences, Soura, Srinagar, Kashmir, India.
authors.forename: Nissar A
authors.initials: NA
authors.lastname: Chowdri
authors.affiliation: Department of Biotechnology, University of Kashmir, Hazratbal, Srinagar, Kashmir, India. Electronic address: haq@kashmiruniversity.ac.in.
authors.forename: Ehtishamul
authors.initials: E
authors.lastname: Haq
mesh_terms: D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D015179:Colorectal Neoplasms / Q000175:diagnosis / Q000201:enzymology / Q000208:ethnology / Q000235:genetics*; D005006:Ethnicity; D005260:Female; D015870:Gene Expression; D020022:Genetic Predisposition to Disease; D006579:Heterozygote; D006801:Humans; D008297:Male; D020778:Matrix Metalloproteinase 2 / Q000235:genetics* / Q000378:metabolism; D020783:Matrix Metalloproteinase 7 / Q000235:genetics* / Q000378:metabolism; D020780:Matrix Metalloproteinase 9 / Q000235:genetics* / Q000378:metabolism; D008875:Middle Aged; D012150:Polymorphism, Restriction Fragment Length; D020641:Polymorphism, Single Nucleotide; D011401:Promoter Regions, Genetic
chemical_list: C060932:MMP7 protein, human; D020783:Matrix Metalloproteinase 7; C522361:MMP2 protein, human; D020778:Matrix Metalloproteinase 2; C579270:MMP9 protein, human; D020780:Matrix Metalloproteinase 9
keywords: Colorectal cancer; Kashmir; MMP2; MMP7; MMP9; Polymorphism; RFLP; SNP