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Basic information of MMP9 :

Official Symbol of Gene MMP9
Species Homo sapiens
Entrez Gene ID 4318
Official Full Name matrix metallopeptidase 9
Also known as GELB; CLG4B; MMP-9; MANDP2
Gene Type protein coding
dbXrefs Ensembl:ENSG00000100985 MIM:120361; AllianceGenome:HGNC:7176
Map Location 20q13.12
Variation Type polymorphisms
refSNP ID 1562 C/T

Sample information of multiple sclerosis:

Detected Sample blood
Sample Detail N/A
Detected Method PCR
Disease MS
Disease subtype RRMS
Population Iranian
Sample Size 100 RRMS patients / 105 control subjects

Literature information of multiple sclerosis :

Pubmed ID 31700826
Year 2019
Title Association Study between Functional Polymorphisms of MMP9 Gene Promoter and Multiple Sclerosis Susceptibility in an Iranian Population

Results of multiple sclerosis :

Risk Type Disease risk
Main Result Positive
Result A significant upper difference was observed in allele frequencies between MS patients compared to healthy volunteers in 1562C/T MMP-9 gene polymorphism. Additionally, frequency distribution of MMP-9 genotypes has a significant relationship with MS disease;in such a way that CC+CT genotype opposed to TT showed a significant association with MS.
Mechanism/Pathway The episodic phase of relapsing-remitting (RR) MS is characterized by the breakdown of the blood-brain barrier (BBB), autoreactive inflammatory cells migrating into the CNS and demyelination.Matrix metalloproteinases (MMPs) are proteolytic enzymes implicated in many aspects of human development and tissue remodeling.These enzymes, particularly Matrix metalloproteinase-9 (MMP-9), are the major participants in breakdown of the blood-brain barrier (BBB) in MS. MMP-9, also known as gelatinase B, degrades various components of the extracellular matrix (ECM).MMP9 plays a role in the inflammatory cells influx in the CNS and have been revealed to split human myelin basic protein (MBP).The single nucleotide polymorphism C–1562 T prevents the binding of a nuclear repressor protein to this region of the MMP-9 gene promoter, then attending to raised MMP-9 expression, as reported in vitro studies.