Sonic hedgehog signalling pathway: a complex network

• Published in: Annals of Neurosciences Vol. 21; no. 1; pp. 28 - 31
• Main Authors: Choudhry, Zia, Rikani, Azadeh A, Choudhry, Adnan Maqsood, Tariq, Sadaf, Zakaria, Fozia, Asghar, Muhammad Waheed, Sarfraz, Muhammad Khan, Haider, Kamran, Shafiq, Afia Ansar, Mobassarah, Nusrat Jahan
• Format: Journal Article
• Language: English
• Published: United States Annals of Neurosciences 01.01.2014; Indian Academy of Neurosciences
• Subjects: Comp Review; Neural tube pattern; Sonic hedgehog; Autoproteolysis; Lipidation; Notochord; Holoprosencephaly
• ISSN: 0972-7531; 0976-3260
• DOI: 10.5214/ans.0972.7531.210109

Sonic Hedgehog (Shh) signalling cascade is one of the intricate signal transduction mechanisms that govern the precisely regulated developmental processes of multicellular organisms. Along with establishing the patterns of cellular differentiation to direct complex organ formation, it also has an important role in post-embryonic tissue regeneration and repair processes. Especially, Shh signalling is implicated in the induction of multifarious neuronal populations in central nervous system. There is compelling evidence of the involvement of Shh protein in the signalling network that regulates various morphogenetic processes such as the exquisite neural tube pattern formation. In the morphogenetic field, the activation of Shh signalling processes is intricately linked to the alterations at the molecular level in the structure of Shh protein that leads to its altered biophysical and biochemical reactivity. This brief article gives an overview of such complex cascade of events in Shh signalling and its transduction pathways.