NDLI: The Role of Progestogens in Regulating Matrix Metalloproteinase Activity in Macrophages and Microglial Cells

Content Provider	Springer Nature Link
Author	Hwang Levine, Juliana Stanczyk, Frank Z. Hodis, Howard N.
Copyright Year	2011
Abstract	Although the systemic effects of progestogens have been extensively studied, little is known in regards to the cellular effects of these compounds. Using a cellular model for vascular (macrophages) and brain (microglial) cells, we studied the effects of various progestogens, either alone or in combination with 17β-estradiol (E$_{2}$) on the activity of matrix metalloproteinase-9 (MMP-9), a proteolytic enzyme involved in vascular remodeling and plaque destabilization in cardiovascular events, blood–brain barrier breakdown in stroke and brain regeneration and neurovascular remodeling during repair phases of brain injury. In the absence of E$_{2}$, medroxyprogesterone acetate (MPA), a synthetic progestogen and progesterone (PG) metabolites tended to increase MMP-9 enzyme activity in macrophages and microglial cells, whereas PG decreased such activity in macrophages; exceptions being that MPA and the PG metabolite, pregnanediol (Pdiol) had no effect on macrophage MMP-9 enzyme activity and PG had no effect on microglial cell MMP-9 enzyme activity. In the presence of E$_{2}$, an opposite affect was observed whereby MPA and the PG metabolites tended to decrease MMP-9 enzyme activity from macrophages and microglial cells, whereas PG had no effect; exceptions being that MPA and Pdiol had no effect on macrophage MMP-9 enzyme activity. In conclusion, these results demonstrate that the effects of PG, PG metabolites and MPA on MMP-9 enzyme activity differ across vascular and brain cells when administered alone or in combination with E$_{2}$ which could have important mechanistic implications for hormone therapy.
Starting Page	1870
Ending Page	1875
Page Count	6
File Format	PDF
ISSN	03643190
Journal	Neurochemical Research
Volume Number	36
Issue Number	10
e-ISSN	15736903
Language	English
Publisher	Springer US
Publisher Date	2011-05-27
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cardiovascular disease Estradiol Hormone therapy Matrix metalloproteinase Menopause Progesterone Neurology Cell Biology Neurochemistry Biochemistry Neurosciences
Content Type	Text
Resource Type	Article
Subject	Medicine Biochemistry Cellular and Molecular Neuroscience

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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