Persistent expression of BMP-4 in embryonic chick adrenal cortical cells and its role in chromaffin cell development
<p>Abstract</p> <p>Background</p> <p>Adrenal chromaffin cells and sympathetic neurons both originate from the neural crest, yet signals that trigger chromaffin development remain elusive. Bone morphogenetic proteins (BMPs) emanating from the dorsal aorta are important s...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
BMC
2008-10-01
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| Series: | Neural Development |
| Online Access: | http://www.neuraldevelopment.com/content/3/1/28 |
| _version_ | 1811295350457106432 |
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| author | Halbach Oliver Schober Andreas Ernsberger Uwe Krispin Shlomi Brühl Barbara Franke Aylin Huber Katrin Rohrer Hermann Kalcheim Chaya Unsicker Klaus |
| author_facet | Halbach Oliver Schober Andreas Ernsberger Uwe Krispin Shlomi Brühl Barbara Franke Aylin Huber Katrin Rohrer Hermann Kalcheim Chaya Unsicker Klaus |
| author_sort | Halbach Oliver |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>Adrenal chromaffin cells and sympathetic neurons both originate from the neural crest, yet signals that trigger chromaffin development remain elusive. Bone morphogenetic proteins (BMPs) emanating from the dorsal aorta are important signals for the induction of a sympathoadrenal catecholaminergic cell fate.</p> <p>Results</p> <p>We report here that BMP-4 is also expressed by adrenal cortical cells throughout chick embryonic development, suggesting a putative role in chromaffin cell development. Moreover, bone morphogenetic protein receptor IA is expressed by both cortical and chromaffin cells. Inhibiting BMP-4 with noggin prevents the increase in the number of tyrosine hydroxylase positive cells in adrenal explants without affecting cell proliferation. Hence, adrenal BMP-4 is likely to induce tyrosine hydroxylase in sympathoadrenal progenitors. To investigate whether persistent BMP-4 exposure is able to induce chromaffin traits in sympathetic ganglia, we locally grafted BMP-4 overexpressing cells next to sympathetic ganglia. Embryonic day 8 chick sympathetic ganglia, in addition to principal neurons, contain about 25% chromaffin-like cells. Ectopic BMP-4 did not increase this proportion, yet numbers and sizes of 'chromaffin' granules were significantly increased.</p> <p>Conclusion</p> <p>BMP-4 may serve to promote specific chromaffin traits, but is not sufficient to convert sympathetic neurons into a chromaffin phenotype.</p> |
| first_indexed | 2024-04-13T05:32:00Z |
| format | Article |
| id | doaj.art-557fa4bed8a542f5bf45eeb545585eaf |
| institution | Directory Open Access Journal |
| issn | 1749-8104 |
| language | English |
| last_indexed | 2024-04-13T05:32:00Z |
| publishDate | 2008-10-01 |
| publisher | BMC |
| record_format | Article |
| series | Neural Development |
| spelling | doaj.art-557fa4bed8a542f5bf45eeb545585eaf2022-12-22T03:00:24ZengBMCNeural Development1749-81042008-10-01312810.1186/1749-8104-3-28Persistent expression of BMP-4 in embryonic chick adrenal cortical cells and its role in chromaffin cell developmentHalbach OliverSchober AndreasErnsberger UweKrispin ShlomiBrühl BarbaraFranke AylinHuber KatrinRohrer HermannKalcheim ChayaUnsicker Klaus<p>Abstract</p> <p>Background</p> <p>Adrenal chromaffin cells and sympathetic neurons both originate from the neural crest, yet signals that trigger chromaffin development remain elusive. Bone morphogenetic proteins (BMPs) emanating from the dorsal aorta are important signals for the induction of a sympathoadrenal catecholaminergic cell fate.</p> <p>Results</p> <p>We report here that BMP-4 is also expressed by adrenal cortical cells throughout chick embryonic development, suggesting a putative role in chromaffin cell development. Moreover, bone morphogenetic protein receptor IA is expressed by both cortical and chromaffin cells. Inhibiting BMP-4 with noggin prevents the increase in the number of tyrosine hydroxylase positive cells in adrenal explants without affecting cell proliferation. Hence, adrenal BMP-4 is likely to induce tyrosine hydroxylase in sympathoadrenal progenitors. To investigate whether persistent BMP-4 exposure is able to induce chromaffin traits in sympathetic ganglia, we locally grafted BMP-4 overexpressing cells next to sympathetic ganglia. Embryonic day 8 chick sympathetic ganglia, in addition to principal neurons, contain about 25% chromaffin-like cells. Ectopic BMP-4 did not increase this proportion, yet numbers and sizes of 'chromaffin' granules were significantly increased.</p> <p>Conclusion</p> <p>BMP-4 may serve to promote specific chromaffin traits, but is not sufficient to convert sympathetic neurons into a chromaffin phenotype.</p>http://www.neuraldevelopment.com/content/3/1/28 |
| spellingShingle | Halbach Oliver Schober Andreas Ernsberger Uwe Krispin Shlomi Brühl Barbara Franke Aylin Huber Katrin Rohrer Hermann Kalcheim Chaya Unsicker Klaus Persistent expression of BMP-4 in embryonic chick adrenal cortical cells and its role in chromaffin cell development Neural Development |
| title | Persistent expression of BMP-4 in embryonic chick adrenal cortical cells and its role in chromaffin cell development |
| title_full | Persistent expression of BMP-4 in embryonic chick adrenal cortical cells and its role in chromaffin cell development |
| title_fullStr | Persistent expression of BMP-4 in embryonic chick adrenal cortical cells and its role in chromaffin cell development |
| title_full_unstemmed | Persistent expression of BMP-4 in embryonic chick adrenal cortical cells and its role in chromaffin cell development |
| title_short | Persistent expression of BMP-4 in embryonic chick adrenal cortical cells and its role in chromaffin cell development |
| title_sort | persistent expression of bmp 4 in embryonic chick adrenal cortical cells and its role in chromaffin cell development |
| url | http://www.neuraldevelopment.com/content/3/1/28 |
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