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A Micropatterning Assay for Measuring Cell Chirality
Published on: March 11, 2022
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Cellular response to chirality and amplified chirality
Sarita Roy1, Kaushik Bhattacharya, Chitra Mandal
1Department of Biochemistry, University of Calcutta, 35 Ballygunge Circular Road, Kolkata-700019, India. adgcal@gmail.com.
Journal of Materials Chemistry. B
|April 9, 2020
Summary
Cancer cells respond differently to chiral drug forms, penicillamine (PA), and their nano-conjugated versions. Amplified chirality via nano-conjugation alters cellular messages, impacting mitochondrial potential and caspase pathways.
Area of Science:
- Biochemistry
- Nanotechnology
- Cancer Biology
Background:
- Chirality plays a crucial role in biological systems.
- Drug enantiomers can exhibit different pharmacological activities.
- Nano-conjugation can amplify chiral properties.
Purpose of the Study:
- To investigate the differential response of U87MG cancer cells to chiral forms of penicillamine (PA).
- To explore the impact of nano-conjugation on cellular response to drug chirality.
- To elucidate the mechanisms underlying cellular discrimination of chiral drug forms.
Main Methods:
- Characterization of penicillamine enantiomers and silver nanoparticle conjugates using circular dichroism and fourier transform infrared spectroscopy.
- Assessment of U87MG cancer cell response to chiral drug forms.
- Analysis of mitochondrial membrane potential and caspase pathway activation.
Main Results:
- U87MG cells exhibit distinct responses to l- and d-penicillamine.
- Nano-conjugation of penicillamine with silver nanoparticles alters cellular responses.
- Chirality and amplified chirality can induce dissimilar or reciprocal cellular effects.
- Cellular discrimination involves modulation of mitochondrial membrane potential and caspase pathway elements.
Conclusions:
- Cellular response to geometrical chirality is a complex, evolved mechanism.
- Amplified chirality through nano-conjugation can lead to altered cellular signaling.
- Understanding chiral drug interactions is vital for cancer therapy development.
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