A
Ambuja Navalkar
Researcher at Indian Institute of Technology Bombay
Publications - 29
Citations - 840
Ambuja Navalkar is an academic researcher from Indian Institute of Technology Bombay. The author has contributed to research in topics: Amyloid & Medicine. The author has an hindex of 10, co-authored 23 publications receiving 391 citations.
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Journal ArticleDOI
α-Synuclein aggregation nucleates through liquid-liquid phase separation.
Soumik Ray,Nitu Singh,Rakesh Kumar,Komal Patel,Sushil Kumar Pandey,Debalina Datta,Jaladhar Mahato,Rajlaxmi Panigrahi,Ambuja Navalkar,Surabhi Mehra,Laxmikant G. Gadhe,Debdeep Chatterjee,Amrendra K. Singh,Siddhartha Maiti,Sandhya Bhatia,Juan Gerez,Arindrajit Chowdhury,Ashutosh Kumar,Ranjith Padinhateeri,Roland Riek,G. Krishnamoorthy,Samir K. Maji +21 more
TL;DR: In vitro generated α-Syn liquid-like droplets eventually undergo a liquid-to-solid transition and form an amyloid hydrogel that contains oligomers and fibrillar species and this work provides detailed insights into the phase-separation behaviour of natively unstructured α- Syn and its conversion to a disease-associated aggregated state, which is highly relevant in Parkinson's disease pathogenesis.
Journal ArticleDOI
p53 amyloid formation leading to its loss of function: implications in cancer pathogenesis
Saikat Ghosh,Shimul Salot,Shinjinee Sengupta,Ambuja Navalkar,Dhiman Ghosh,Reeba S. Jacob,Subhadeep Das,Rakesh Kumar,Narendra Nath Jha,Shruti Sahay,Surabhi Mehra,Ganesh M. Mohite,Santanu K. Ghosh,Mamata Kombrabail,Guruswamy Krishnamoorthy,Pradip Chaudhari,Samir K. Maji +16 more
TL;DR: In vitro studies show that cancer-associated mutation destabilizes the fold of p53 core domain and also accelerates the aggregation and amyloid formation by this protein, suggesting that inhibiting p53 isyloidogenesis could restore p53 tumor suppressor functions.
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Lipopolysaccharide from Gut Microbiota Modulates α-Synuclein Aggregation and Alters Its Biological Function.
Dipita Bhattacharyya,Ganesh M. Mohite,Janarthanan Krishnamoorthy,Nilanjan Gayen,Surabhi Mehra,Ambuja Navalkar,Samuel A. Kotler,Bhisma N Ratha,Anirban Ghosh,Rakesh Kumar,Kanchan Garai,Atin K. Mandal,Samir K. Maji,Anirban Bhunia +13 more
TL;DR: Biophysical techniques in conjunction with microscopic images revealed the molecular interaction between lipopolysaccharide and α-synuclein that induce rapid nucleation events and characterizes this heteromolecular interaction associated with an alternative pathway in Parkinson's disease progression.
Journal ArticleDOI
Comparison of α-Synuclein Fibril Inhibition by Four Different Amyloid Inhibitors
Narendra Nath Jha,Rakesh Kumar,Rajlaxmi Panigrahi,Ambuja Navalkar,Dhiman Ghosh,Shruti Sahay,Mrityunjoy Mondal,Ashutosh Kumar,Samir K. Maji +8 more
TL;DR: The present study suggests that sequence based interaction of small molecules with soluble α-Syn might dictate their inhibition or modulation capacity, which might be helpful in designing modulators of α- synuclein aggregation.
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Prion-like p53 Amyloids in Cancer.
TL;DR: An insight into understanding p53 as a prion-like protein is provided and cancer to be recognized as amyloid or prions-like disease is proposed.