Premium
Expression of the matrix metalloproteinases 2 and 9 in the rat small intestine during intrauterine and postnatal life
Author(s) -
dos Reis Camila Audrey,
Miranda Soares Maria Albertina,
Gomes José Rosa
Publication year - 2020
Publication title -
the anatomical record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.678
H-Index - 62
eISSN - 1932-8494
pISSN - 1932-8486
DOI - 10.1002/ar.24314
Subject(s) - lamina propria , matrix metalloproteinase , zymography , immunohistochemistry , small intestine , pathology , masson's trichrome stain , context (archaeology) , immunostaining , andrology , biology , anatomy , epithelium , medicine , endocrinology , paleontology
The expressions of matrix metalloproteinases 2 and 9 have been described during the development, as an example in heart and tooth but not in the small intestine yet. In this context, this study aimed to evaluate the expressions of MMP‐2 and MMP‐9 in the small intestine of Wistar rats during intrauterine (IU) and postnatal (PN) life. Expressions were determined on the 15th and 18th days of IU life and the 3rd, 10th, 17th, 25th, and 32nd days of PN life. Intestinal samples obtained from six animals were submitted to zymography, immunohistochemistry, and staining with Masson's trichrome. The results showed that MMP‐2 and MMP‐9 were not expressed during IU life; however, after birth, MMP‐9 was immunolocalized in the goblet and mast cells. In conclusion, our results showed that MMP‐2 and MMP‐9 were not expressed in absorptive epithelial cells during the IU period of the small intestine but after birth, MMP‐9 was expressed in the goblet cells, and mast cells present in the lamina propria.