Sökning: onr:"swepub:oai:DiVA.org:umu-59651" > Stromelysin-3 is in...
Fältnamn | Indikatorer | Metadata |
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000 | 02759naa a2200253 4500 | |
001 | oai:DiVA.org:umu-59651 | |
003 | SwePub | |
008 | 120921s2001 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-596512 URI |
040 | a (SwePub)umu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Hägglund, A C4 aut |
245 | 1 0 | a Stromelysin-3 is induced in mouse ovarian follicles undergoing hormonally controlled apoptosis, but this metalloproteinase is not required for follicular atresia. |
264 | 1 | c 2001 |
338 | a print2 rdacarrier | |
520 | a Apoptotic processes are often associated with an intense proteolytic remodeling of the extracellular matrix (ECM). Proteolytic degradation of the ECM can also be a signal that induces apoptosis. Here, we have investigated the expression pattern and functional role of the matrix metalloproteinase stromelysin-3 in follicular atresia. Twenty-four hours after the treatment of immature female mice with a low dose of eCG, both apoptosis and the stromelysin-3 mRNA expression were suppressed approximately threefold. However, the initial suppression of apoptosis and stromelysin-3 expression was followed by a time-dependent increase, and 96 h after eCG treatment, the levels were similar to those of untreated control mice. In 15- to 16-day-old juvenile mice, the ovary consisted of relatively undeveloped follicles, and almost no apoptosis and only low stromelysin-3 mRNA expression were observed. However, at the age of 21 days, when several antral follicles were present, a fivefold induction in both apoptosis and stromelysin-3 mRNA expression was detected. For both models, in situ analysis revealed that the expression of stromelysin-3 mRNA was localized to the granulosa cells of atretic follicles. To address the functional role of stromelysin-3 in follicular atresia, stromelysin-3-deficient mice were studied. However, no difference in the pattern of apoptotic DNA fragmentation and no apparent morphological differences were observed when ovaries from wild-type and stromelysin-3-deficient mice were compared. Taken together, our data indicate that stromelysin-3 is induced during follicular atresia, but that this protease is not obligatory for initiation or completion of the atretic process. | |
700 | 1 | a Basset, P4 aut |
700 | 1 | a Ny, Toru Umeå universitet,Institutionen för medicinsk kemi och biofysik4 aut0 (Swepub:umu)tony0001 |
710 | 2 | a Umeå universitetb Institutionen för medicinsk kemi och biofysik4 org |
773 | 0 | t Biology of Reproductiong 64:2, s. 457-63q 64:2<457-63x 0006-3363x 1529-7268 |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-59651 |
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