Expression of Hedgehog signalling molecules in microcystic adnexal carcinoma.
Journal
Clinical and experimental dermatology
ISSN: 1365-2230
Titre abrégé: Clin Exp Dermatol
Pays: England
ID NLM: 7606847
Informations de publication
Date de publication:
Aug 2021
Aug 2021
Historique:
revised:
05
02
2021
received:
28
10
2020
accepted:
11
03
2021
pubmed:
14
3
2021
medline:
23
11
2021
entrez:
13
3
2021
Statut:
ppublish
Résumé
Microcystic adnexal carcinoma (MAC) is a rare skin neoplasm that has not been characterized on a molecular basis. To assess expression profiles of Hedgehog (HH) signalling molecules in MAC and control tumours. Immunohistochemistry was performed for Sonic Hedgehog (SHH), Indian Hedgehog (IHH), Patched 1 (PTCH1) and Smoothened (SMO) on patient MAC tissue (n = 26) and control tumour tissue, including syringoma (SyG; n = 11), trichoepithelioma (TE; n = 11) and basal cell carcinoma (BCC; n = 12) tissues. Patched 1 and SMO immunoreactivity was significantly higher in BCC than in SyG, TE or MAC (P < 0.001 and P < 0.03, respectively). The highest IHH expression was observed in BCC and TE compared with SyG and MAC (P < 0.04). Notably, the highest SHH protein expression was observed in SyG compared with MAC, TE and even BCC (P < 0.001). In patients with MAC, SMO immunoreactivity significantly (r = 0.51; P < 0.01) correlated with PTCH1 expression. Further correlation studies did not show significant associations between the HH expression markers assessed (P > 0.05). Our results indicate that alterations of the HH signalling are unlikely to play a major role in the pathogenesis of MAC, which is in contrast to the morphologically similar BCC and TE. Our observation provides additional information to the limited molecular pathology knowledge on this rare tumour.
Sections du résumé
BACKGROUND
BACKGROUND
Microcystic adnexal carcinoma (MAC) is a rare skin neoplasm that has not been characterized on a molecular basis.
AIM
OBJECTIVE
To assess expression profiles of Hedgehog (HH) signalling molecules in MAC and control tumours.
METHODS
METHODS
Immunohistochemistry was performed for Sonic Hedgehog (SHH), Indian Hedgehog (IHH), Patched 1 (PTCH1) and Smoothened (SMO) on patient MAC tissue (n = 26) and control tumour tissue, including syringoma (SyG; n = 11), trichoepithelioma (TE; n = 11) and basal cell carcinoma (BCC; n = 12) tissues.
RESULTS
RESULTS
Patched 1 and SMO immunoreactivity was significantly higher in BCC than in SyG, TE or MAC (P < 0.001 and P < 0.03, respectively). The highest IHH expression was observed in BCC and TE compared with SyG and MAC (P < 0.04). Notably, the highest SHH protein expression was observed in SyG compared with MAC, TE and even BCC (P < 0.001). In patients with MAC, SMO immunoreactivity significantly (r = 0.51; P < 0.01) correlated with PTCH1 expression. Further correlation studies did not show significant associations between the HH expression markers assessed (P > 0.05).
CONCLUSION
CONCLUSIONS
Our results indicate that alterations of the HH signalling are unlikely to play a major role in the pathogenesis of MAC, which is in contrast to the morphologically similar BCC and TE. Our observation provides additional information to the limited molecular pathology knowledge on this rare tumour.
Substances chimiques
Hedgehog Proteins
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1052-1057Informations de copyright
© 2021 The Authors. Clinical and Experimental Dermatology published by John Wiley & Sons Ltd on behalf of British Association of Dermatologists.
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