Developmental changes in cell proliferation and apoptosis in the normal duck bursa of Fabricius
The aim of this work was to investigate developmental changes in cell proliferation and apoptosis in normal duck bursa of Fabricius using flow cytometry and immunohistochemistry. Studies were carried out on Tianfu ducks on days 24 and 27 of embryogenesis (E24 and E27) along with days 20, 70, and 200...
| Main Authors: | , |
|---|---|
| Format: | Online |
| Language: | English |
| Published: |
The Korean Society of Veterinary Science
2014
|
| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4269588/ |
| id |
pubmed-4269588 |
|---|---|
| recordtype |
oai_dc |
| spelling |
pubmed-42695882014-12-19 Developmental changes in cell proliferation and apoptosis in the normal duck bursa of Fabricius Fang, Jing Peng, Xi Original Article The aim of this work was to investigate developmental changes in cell proliferation and apoptosis in normal duck bursa of Fabricius using flow cytometry and immunohistochemistry. Studies were carried out on Tianfu ducks on days 24 and 27 of embryogenesis (E24 and E27) along with days 20, 70, and 200 of postnatal development (P20, P70, and P200). Results showed that the percentage of G0/G1 bursa cells significantly increased between E24 and P200 while the percentage of cells in the S phase or G2 + M phase as well as the proliferating index obviously decreased during the same period. Proliferation cell nuclear antigen was detected in lymphocyte and interfollicular epithelium. The proliferative lymphocyte density tended to decrease from E24 to P200. Apoptotic bodies in macrophages, free apoptotic bodies, or nuclei with condensed chromatin in lymphocytes in follicles were identified by transferase-mediated dUTP nick-end labeling. Both flow cytometry and microscopic analysis reveal that the proportion of apoptotic cells and apoptotic lymphocyte density increased from E24 to P20, fell on P70, then rose again on P200. Our foundings demonstrate that cell proliferation decreases and apoptosis increases with age. These changes may account for duck bursa development and involution. The Korean Society of Veterinary Science 2014-12 2014-12-15 /pmc/articles/PMC4269588/ /pubmed/24962417 http://dx.doi.org/10.4142/jvs.2014.15.4.465 Text en © 2014 The Korean Society of Veterinary Science. http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. |
| repository_type |
Open Access Journal |
| institution_category |
Foreign Institution |
| institution |
US National Center for Biotechnology Information |
| building |
NCBI PubMed |
| collection |
Online Access |
| language |
English |
| format |
Online |
| author |
Fang, Jing Peng, Xi |
| spellingShingle |
Fang, Jing Peng, Xi Developmental changes in cell proliferation and apoptosis in the normal duck bursa of Fabricius |
| author_facet |
Fang, Jing Peng, Xi |
| author_sort |
Fang, Jing |
| title |
Developmental changes in cell proliferation and apoptosis in the normal duck bursa of Fabricius |
| title_short |
Developmental changes in cell proliferation and apoptosis in the normal duck bursa of Fabricius |
| title_full |
Developmental changes in cell proliferation and apoptosis in the normal duck bursa of Fabricius |
| title_fullStr |
Developmental changes in cell proliferation and apoptosis in the normal duck bursa of Fabricius |
| title_full_unstemmed |
Developmental changes in cell proliferation and apoptosis in the normal duck bursa of Fabricius |
| title_sort |
developmental changes in cell proliferation and apoptosis in the normal duck bursa of fabricius |
| description |
The aim of this work was to investigate developmental changes in cell proliferation and apoptosis in normal duck bursa of Fabricius using flow cytometry and immunohistochemistry. Studies were carried out on Tianfu ducks on days 24 and 27 of embryogenesis (E24 and E27) along with days 20, 70, and 200 of postnatal development (P20, P70, and P200). Results showed that the percentage of G0/G1 bursa cells significantly increased between E24 and P200 while the percentage of cells in the S phase or G2 + M phase as well as the proliferating index obviously decreased during the same period. Proliferation cell nuclear antigen was detected in lymphocyte and interfollicular epithelium. The proliferative lymphocyte density tended to decrease from E24 to P200. Apoptotic bodies in macrophages, free apoptotic bodies, or nuclei with condensed chromatin in lymphocytes in follicles were identified by transferase-mediated dUTP nick-end labeling. Both flow cytometry and microscopic analysis reveal that the proportion of apoptotic cells and apoptotic lymphocyte density increased from E24 to P20, fell on P70, then rose again on P200. Our foundings demonstrate that cell proliferation decreases and apoptosis increases with age. These changes may account for duck bursa development and involution. |
| publisher |
The Korean Society of Veterinary Science |
| publishDate |
2014 |
| url |
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4269588/ |
| _version_ |
1613168496777101312 |