Qualification: 
MPhil, MSc, BSc
anupama@am.amrita.edu

Anupama currently serves as Junior Research Fellow at Amrita School of Biotechnology under Department of Science and Technology (DST) funded project titled “Paraptosis- A newer approach to target cancer” under DrNandita Mishra, Assistant Professor. 

ALMA MATER

  • M.Phil. Biotechnology,Lovely Professional University (2010)
  • MSc. Biochemistry,Periyar University (2007)
  • BSc. ,Punjab University (2005)

EARLIER AFFILIATION

  • Junior Research Fellow at Amrita School of Biotechnology (current).
  • Teaching Assistant at Amrita School of Biotechnology (2012)

AWARDS / HONOR

  • Award of Excellence from Amrita Vishwa Vidyapeetham,2014
  • Qualified UGC-Junior Research Fellowship, 2012
  • Awarded University Academic Honour for standing First in Order of merit in M.Phil.2010

Research experience

Purification and characterisation of Protease from Clostridium species in Anaerobic       Digester:Insights into acidic and thermal stability of Protease from Central leather Research Institute, Chennai (2005)
Biotechnological innovations for the production of pectinases and its thermostabilisation (2010)

Research Interest

  • Cancer Biology
  • Protein Purification

Publications

Publication Type: Journal Article

Year of Publication Title

2019

Anupama Binoy, Nedungadi, D., Katiyar, N., Chinchu Bose, Dr. Sahadev Shankarappa, Dr. Bipin G. Nair, and Dr. Nandita Mishra, “Plumbagin induces paraptosis in cancer cells by disrupting the sulfhydryl homeostasis and proteasomal function”, Chemico-Biological Interactions, p. 108733, 2019.[Abstract]


Plumbagin (PLB) is an active secondary metabolite extracted from the roots of Plumbago rosea. In this study, we report that plumbagin effectively induces paraptosis by triggering extensive cytoplasmic vacuolation followed by cell death in triple negative breast cancer cells (MDA-MB-231), cervical cancer cells (HeLa) and non-small lung cancer cells (A549) but not in normal lung fibroblast cells (WI-38). The vacuoles originated from the dilation of the endoplasmic reticulum (ER) and were found to be empty. The cell death induced by plumbagin was neither apoptotic nor autophagic. Plumbagin induced ER stress mainly by inhibiting the chymotrypsin-like activity of 26S proteasome as also evident from the accumulation of polyubiquitinated proteins. The vacuolation and cell death were found to be independent of reactive oxygen species generation but was effectively inhibited by thiol antioxidant suggesting that plumbagin could modify the sulfur homeostasis in the cellular milieu. Plumbagin also resulted in a decrease in mitochondrial membrane potential eventually decreasing the ATP production. This is the first study to show that Plumbagin induces paraptosis through proteasome inhibition and disruption of sulfhydryl homeostasis and thus further opens up the lead molecule to potential therapeutic strategies for apoptosis-resistant cancers.

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2019

K. Naidu Bobba, Anupama Binoy, Koo, S., Nedungadi, D., Podder, A., Sharma, A., Dr. Nandita Mishra, Kim, J. Seung, and Bhuniya, S., “Direct readout protonophore induced selective uncoupling and dysfunction of individual mitochondria within cancer cells”, Chemical Communications, vol. 55, no. 45, pp. 6429-6432, 2019.[Abstract]


Concurrently, manipulation of mitochondrial activity and its monitoring have enormous significance in cancer therapy and diagnosis. In this context, a fluorescent probe MitoDP has been developed for validating H2S mediated protonophore (2,4-dinitrophenol, DNP) induced mitochondrial membrane potential change, ROS formation and ATP depletion in cancer cells. The extent of protonophore activation for mitochondrial dysfunction is monitored through fluorescence signalling at 450 nm. The current study provides a proof for the concept of endogenous H2S-mediated controlled and spatial release of bioactive agents, or toxins specifically in mitochondria of cancer cells.

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2018

P. Sagitha, Reshmi, C. R., Sundaran, S. P., Anupama Binoy, Dr. Nandita Mishra, and Sujith, A., “In-vitro evaluation on drug release kinetics and antibacterial activity of dextran modified polyurethane fibrous membrane.”, International Journal of Biological Macromolecules, vol. 126, pp. 717-730, 2018.[Abstract]


pH stimuli drug release nanofibrous membranes of polyurethane/dextran were developed for tailoring of antibacterial wound dressings. Incorporation of dextran in polyurethane (PU) showed increment in hydrophilicity, vapour transmission rate, percentage sorption values, and biodegradability. Dextran also acts as reinforcement filler in PU matrix. Dextran induces a high degree of platelet adhesion and hemostasis potential which is essential for promoting the wound healing process. Moreover, 20 wt% dextran loaded membranes (PU/20D) exhibited enhanced cell proliferation, attachment and viability against 3T3 fibroblasts. Curcumin loaded PU/20 dextran membrane exhibited pH-controlled drug release potency and synergistic antibacterial activity against gram-positive bacteria. It is confirmed that, PU/20D membranes could promote, pH-controlled drug release and synergistic antibacterial activity for a promising wound dressing material.

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2017

N. Velusamy, Anupama Binoy, Bobba, K. Naidu, Nedungadi, D., Dr. Nandita Mishra, and Bhuniya, S., “A bioorthogonal fluorescent probe for mitochondrial hydrogen sulfide: new strategy for cancer cell labeling”, Chem Commun (Camb)., vol. 53, no. 62, pp. 8802-8805, 2017.[Abstract]


We report the application of a chemodosimeter {'}turn on{'} fluorescent probe for detecting endogenous H2S formation in cancer cells. Mito-HS showed a bathochromic shift in the UV-vis-absorption spectrum from 355 nm to 395 nm in the presence of H2S. Furthermore{,} it showed an [similar]43-fold fluorescence enhancement at [small lambda]em = 450 nm in the presence of H2S (200 [small mu ]M). The cancer cell-specific fluorescence imaging reveals that Mito-HS has the ability to distinguish cancer cells from normal cells based on the level of endogenous H2S formation. In due course{,} Mito-HS would be a powerful cancer biomarker based on its ability to estimate endogenous H2S formation in living cells.

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2017

C. R. Reshmi, Menon, T., Anupama Binoy, Dr. Nandita Mishra, Elyas, K. K., and Sujith, A., “Poly(L-lactide-co-caprolactone)/collagen electrospun mat: Potential for wound dressing and controlled drug delivery”, International Journal of Polymeric Materials and Polymeric Biomaterials, vol. 66, no. 13, pp. 645-657, 2017.[Abstract]


Here we report a novel bioactive electrospun mat based on poly(L-lactide-co-caprolactone) (PLLC) and collagen for wound dressing and sustained drug delivery of gentamicin. PLLC/collagen electrospun mat loaded with 10% gentamicin showed bioactivity for 15 days against Gram-positive and Gram-negative bacteria. The in vitro cell culture of 3T3 fibroblasts confirmed that these electrospun mat provide an increased specific interface area and hydrophilicity to enhance cell attachment, proliferation, and migration. The modified PLLC/collagen mat provided an excellent enhancement in properties of antibacterial wound dressings with a minimum in vitro toxicity and high potency for promoting wound healing stages. © 2017 Taylor & Francis.

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Publication Type: Patent

Year of Publication Title

2018

S. Bhuniya, Mishra, N., Velusamy, N., Anupama Binoy, Bobba, K. Naidu, and Nedungadi, D., “Flourescent Exomarker Probes for Hydrogen Sulfide Detection”, U.S. Patent 15 / 956 , 4742018.[Abstract]


A fluorescence probe with mitochondrial targeting and two-photon property, its preparation method and application in detecting and tracking endogenous H2S in samples or living cells. The fluorescent probe is prepared by a four-step preparation method and demonstrates a UV-vis absorption increment λab=395 nm and ˜43 fold higher fluorescence intensity in the presence of H2S. The probe further demonstrates stability, selectivity for H2S over competing agents and sensitivity as low as 20 nm. A method of detecting endogenous H2S rapidly in the absence of any external stimulators is provided. Samples are contacted with the probe and the changes in fluorescence are monitored to detect H2S levels. The disclosed probe is non-toxic and suitable as a biomarker and therapeutic molecule in cancer and other diseases.

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CONTACT

Anupama
School of Biotechnology
Amrita Vishwa Vidyapeetham (Amritapuri Campus)
Clapana P.O., Kollam, Kerala, India. 690525

Faculty Research Interest: