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Dutta T, Chakraborty B, Nigam A, Minocha S, Koner AL. A small-molecule probe to decipher stress-induced ER microenvironments and ER-Golgi communication. J Mater Chem B 2024. [PMID: 38808376 DOI: 10.1039/d4tb00572d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
Cellular stress is a crucial factor in regulating and maintaining both organismal and microenvironmental homeostasis. It induces a response that also affects the micropolarity of specific cellular compartments, which is essential for early disease diagnosis. In this contribution, we present a quantitative study of micropolarity changes inside the endoplasmic reticulum (ER) during the G1/S and G2/M phases, using a biocompatible small-molecule fluorophore called ER-Oct. This probe is selectively driven to the ER by its hydrophobicity, and it has the fastest diffusion properties among a series of analogous probes. We found that induced ER stress caused cell cycle arrests leading to an increase in ER micropolarity which is well supported by lambda scanning experiments and fluorescence lifetime imaging microscopy (FLIM) as well. ER-Oct is a versatile staining agent that could effectively stain the ER in various living/fixed mammalian cells, isolated ER, Caenorhabditis elegans, and mice tissues. Furthermore, we used this probe to visualize a well-known biological event, ER to Golgi transport, by live-cell fluorescence microscopy. Our exhaustive investigation of micropolarity using ER-staining dye provides a new way to study ER stress, which could provide a deeper understanding of proteostasis in model systems and even in fixed patient samples.
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Affiliation(s)
- Tanoy Dutta
- Bionanotechnology Lab, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, Madhya Pradesh - 462066, India.
- Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
| | - Barsha Chakraborty
- Bionanotechnology Lab, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, Madhya Pradesh - 462066, India.
| | - Aditya Nigam
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, Hauz Khas, New Delhi - 110016, India
| | - Shilpi Minocha
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, Hauz Khas, New Delhi - 110016, India
| | - Apurba Lal Koner
- Bionanotechnology Lab, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, Madhya Pradesh - 462066, India.
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Majhi D, Sahu PK, Seth S, Sarkar M. Probing the interactions of structurally similar but chemically distinguishable organic solutes with 1-ethyl-3-methylimidazolium alkyl sulfate (alkyl = ethyl, hexyl and octyl) ionic liquids through fluorescence, NMR and fluorescence correlation spectroscopy (FCS) studies. Phys Chem Chem Phys 2016; 18:22343-54. [DOI: 10.1039/c6cp03006h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Structurally similar but chemically distinguishable solutes provide idea about intermolecular interactions in ionic liquids.
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Affiliation(s)
- Debashis Majhi
- School of Chemical Sciences
- National Institute of Science Education and Research
- Khurda 752050
- India
| | - Prabhat Kumar Sahu
- School of Chemical Sciences
- National Institute of Science Education and Research
- Khurda 752050
- India
| | - Sudipta Seth
- School of Chemistry
- University of Hyderabad
- Hyderabad – 500046
- India
| | - Moloy Sarkar
- School of Chemical Sciences
- National Institute of Science Education and Research
- Khurda 752050
- India
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Bhoi AK, Das SK, Majhi D, Sahu PK, Nijamudheen A, N. A, Rahaman A, Sarkar M. Analyte Interactions with a New Ditopic Dansylamide–Nitrobenzoxadiazole Dyad: A Combined Photophysical, NMR, and Theoretical (DFT) Study. J Phys Chem B 2014; 118:9926-37. [DOI: 10.1021/jp504631n] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Abhas Kumar Bhoi
- School of Chemical Sciences and ‡School of Biological
Sciences, National Institute of Science Education and Research, Bhubaneswar 751005, India
| | - Sudhir Kumar Das
- School of Chemical Sciences and ‡School of Biological
Sciences, National Institute of Science Education and Research, Bhubaneswar 751005, India
| | - Debashis Majhi
- School of Chemical Sciences and ‡School of Biological
Sciences, National Institute of Science Education and Research, Bhubaneswar 751005, India
| | - Prabhat Kumar Sahu
- School of Chemical Sciences and ‡School of Biological
Sciences, National Institute of Science Education and Research, Bhubaneswar 751005, India
| | - A. Nijamudheen
- School of Chemical Sciences and ‡School of Biological
Sciences, National Institute of Science Education and Research, Bhubaneswar 751005, India
| | - Anoop N.
- School of Chemical Sciences and ‡School of Biological
Sciences, National Institute of Science Education and Research, Bhubaneswar 751005, India
| | - Abdur Rahaman
- School of Chemical Sciences and ‡School of Biological
Sciences, National Institute of Science Education and Research, Bhubaneswar 751005, India
| | - Moloy Sarkar
- School of Chemical Sciences and ‡School of Biological
Sciences, National Institute of Science Education and Research, Bhubaneswar 751005, India
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Choudhury SD, Muralidharan S, Pal H. A study on the photophysics of 9-amino-10-cyanoanthracene: probing its dual absorption and emission behavior. Phys Chem Chem Phys 2014; 16:11509-18. [DOI: 10.1039/c4cp00865k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study explores the photophysics of an interesting donor–acceptor substituted molecule, 9-amino-10-cyanoanthracene, that shows unusual dual absorption and emission behavior.
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Affiliation(s)
| | - Sukumaran Muralidharan
- Center for Biomedical Engineering and Technology
- University of Maryland School of Medicine
- Baltimore, USA
| | - Haridas Pal
- Radiation & Photochemistry Division
- Bhabha Atomic Research Centre
- Mumbai 400 085, India
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Patra S, Lo R, Chakraborty A, Gunupuru R, Maity D, Ganguly B, Paul P. Calix[4]arene based fluorescent chemosensor bearing coumarin as fluorogenic unit: Synthesis, characterization, ion-binding property and molecular modeling. Polyhedron 2013. [DOI: 10.1016/j.poly.2012.12.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mohan V, Nijamudheen A, Das SK, Sahu PK, Kar UP, Rahaman A, Sarkar M. Ion Interactions with a New Ditopic Naphthalimide-Based Receptor: A Photophysical, NMR and Theoretical (DFT) Study. Chemphyschem 2012; 13:3882-92. [DOI: 10.1002/cphc.201200645] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2012] [Indexed: 11/07/2022]
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