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Rudra DS, Chatterjee S, Pal U, Mandal M, Chaudhuri SR, Bhunia M, Maiti NC, Besra SE, Jaisankar P, Swarnakar S. Newly Synthesized 3-Indolyl Furanoid Inhibits Matrix Metalloproteinase-9 Activity and Prevents Nonsteroidal Anti-inflammatory Drug-Induced Gastric Ulceration. J Med Chem 2023. [PMID: 37186543 DOI: 10.1021/acs.jmedchem.3c00511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Indomethacin, a known nonsteroidal anti-inflammatory drug (NSAID) induces gastric inflammation, causing degradation of the extracellular matrix by specific matrix metalloproteinases (MMPs). We investigated the antiulcer efficacy of 3-indolyl furanoids (3g and 3c, i.e., methoxy substitution at 4- and 5-positions of the indole ring, respectively), derived from indomethacin. Interestingly, 3g protected against indomethacin-induced gastropathy in vivo by inhibiting MMP-9. Our work established a chemical modification strategy for the development of safer NSAIDs. Moreover, in vitro and in silico studies confirmed that 3g inhibited MMP-9 activity with an IC50 value of 50 μM by binding to the catalytic cleft of MMP-9, leading to ulcer prevention. Pharmacokinetics was presented as the mean concentration-time profile in the rat plasma, and the extraction efficiency was greater than 70%, showing a Cmax of 104.48 μg/mL after 6.0 h (tmax) treatment with half-life and area under the curve being 7.0 h and 1273.8 h μg/mL, respectively, indicating the higher antiulcer potency of 3g.
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Garg A, Goel N, Abhinav N, Varma T, Achari A, Bhattacharjee P, Kamal IM, Chakrabarti S, Ravichandiran V, Reddy AM, Gupta S, Jaisankar P. Virtual screening of natural products inspired in-house library to discover potential lead molecules against the SARS-CoV-2 main protease. J Biomol Struct Dyn 2023; 41:2033-2045. [PMID: 35043750 DOI: 10.1080/07391102.2022.2027271] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
SARS-CoV-2, a new coronavirus emerged in 2019, causing a global healthcare epidemic. Although a variety of drug targets have been identified as potential antiviral therapies, and effective candidate against SARS-CoV-2 remains elusive. One of the most promising targets for combating COVID-19 is SARS-CoV-2 Main protease (Mpro, a protein responsible for viral replication. In this work, an in-house curated library was thoroughly evaluated for druggability against Mpro. We identified four ligands (FG, Q5, P5, and PJ4) as potential inhibitors based on docking scores, predicted binding energies (MMGBSA), in silico ADME, and RMSD trajectory analysis. Among the selected ligands, FG, a natural product from Andrographis nallamalayana, exhibited the highest binding energy of -10.31 kcal/mol close to the docking score of clinical candidates Boceprevir and GC376. Other ligands (P5, natural product from cardiospermum halicacabum and two synthetic molecules Q5 and PJ4) have shown comparable docking scores ranging -7.65 kcal/mol to -7.18 kcal/mol. Interestingly, we found all four top ligands had Pi bond interaction with the main amino acid residues HIS41 and CYS145 (catalytic dyad), H-bonding interactions with GLU166, ARG188, and GLN189, and hydrophobic interactions with MET49 and MET165 in the binding site of Mpro. According to the ADME analysis, Q5 and P5 are within the acceptable range of drug likeliness, compared to FG and PJ4. The interaction stability of the lead molecules with viral protease was verified using replicated MD simulations. Thus, the present study opens up the opportunity of developing drug candidates targeting SARS-CoV-2 main protease (Mpro) to mitigate the disease.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Aakriti Garg
- National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, Chunilal Bhawan, Kolkata, India.,Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Narender Goel
- National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, Chunilal Bhawan, Kolkata, India.,Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Nipun Abhinav
- National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, Chunilal Bhawan, Kolkata, India.,Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Tanmay Varma
- National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, Chunilal Bhawan, Kolkata, India
| | - Anushree Achari
- Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Pinaki Bhattacharjee
- Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Izaz Monir Kamal
- Department of Structural Biology and Bioinformatics, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Saikat Chakrabarti
- Department of Structural Biology and Bioinformatics, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Velayutham Ravichandiran
- National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, Chunilal Bhawan, Kolkata, India
| | | | - Sreya Gupta
- National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, Chunilal Bhawan, Kolkata, India
| | - Parasuraman Jaisankar
- Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, Kolkata, India
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3
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Goel N, Gupta VK, Garg A, Bhoumik A, Biswas R, Natarajan R, Majumder HK, Jaisankar P. Holanamine, a Steroidal Alkaloid from the Bark of Holarrhena pubescens Wall. ex G. Don Inhibits the Growth of Leishmania donovani by Targeting DNA Topoisomerase 1B. ACS Infect Dis 2023; 9:162-177. [PMID: 36417798 DOI: 10.1021/acsinfecdis.2c00562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Leishmaniasis is a group of neglected tropical diseases (NTDs) caused by about 20 species of obligate intracellular protozoan parasites of the genus Leishmania, which occurs in cutaneous, mucocutaneous, and visceral forms. Many researchers have sought to utilize natural products for novel and effective treatments to combat many infectious diseases, including leishmaniasis. Holarrhena pubescens Wall. ex G. Don (Apocynaceae) bark is a rich source of bioactive steroidal alkaloids. The total alkaloidal extract (IC50 6.12 ± 0.117 μg/mL), and the isolated alkaloid, holanamine, showed significant antileishmanial activity (IC50 2.66 ± 0.112 μM against AG83 and 3.80 ± 0.126 μM against BHU-575) against the Leishmania donovani parasite, better than miltefosine (IC50 19.61 ± 0.093 μM against AG83 and 23.20 ± 0.094 μM against BHU-575). Holanamine inhibited the L. donovani topoisomerase 1B (LdToP1B) in a non-competitive manner (IC50 2.81 ± 0.105 μM), indicating that it interacts with the free enzyme and enzyme-DNA complex without inhibiting human topoisomerase. Hydrogen bonding and hydrophobic interactions of holanamine with the N-terminal and hinge region of the large subunit of LTop1B is responsible for its potent antileishmanial activity, as shown by docking studies. Treatment with holanamine causes apoptotic-like cell death by generating cellular and mitochondrial reactive oxygen species, disrupting the mitochondrial membrane potential and inducing ultrastructural alterations in the promastigotes. Holanamine effectively clears intracellular amastigotes but minimally affects host macrophages with no significant cytotoxicity in HEK 293 and L929 cell lines. Thus, our studies show that holanamine can further be used to develop effective antileishmanial agents against evolving drug-resistant parasites.
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Affiliation(s)
- Narender Goel
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168, Maniktala Main Road, Kolkata700054, India.,Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata700032, India
| | - Vivek Kumar Gupta
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata700032, India
| | - Aakriti Garg
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168, Maniktala Main Road, Kolkata700054, India
| | - Arpita Bhoumik
- Laboratory of Molecular Parasitology, Infectious Diseases & Immunology Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata700032, India
| | - Raju Biswas
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata700032, India
| | - Ramalingam Natarajan
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata700032, India
| | - Hemanta K Majumder
- Laboratory of Molecular Parasitology, Infectious Diseases & Immunology Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata700032, India
| | - Parasuraman Jaisankar
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Jadavpur, Kolkata700032, India
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4
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Sengupta S, Abhinav N, Singh S, Dutta J, Mabalirajan U, Kaliyamurthy K, Mukherjee PK, Jaisankar P, Bandyopadhyay A. Corrigendum: Standardised Sonneratia apetala Buch.-Ham. fruit extract inhibits human neutrophil elastase and attenuates elastase-induced lung injury in mice. Front Pharmacol 2023; 14:1175091. [PMID: 37124195 PMCID: PMC10133713 DOI: 10.3389/fphar.2023.1175091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/03/2023] [Indexed: 05/02/2023] Open
Abstract
[This corrects the article DOI: 10.3389/fphar.2022.1011216.].
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Affiliation(s)
- Sayantan Sengupta
- Cardiovascular Disease and Respiratory Disorders Laboratory, Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Nipun Abhinav
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, India
| | - Sabita Singh
- Molecular Pathobiology of Respiratory Diseases Laboratory, Cell Biology and Physiology Department, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Joytri Dutta
- Molecular Pathobiology of Respiratory Diseases Laboratory, Cell Biology and Physiology Department, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Ulaganathan Mabalirajan
- Molecular Pathobiology of Respiratory Diseases Laboratory, Cell Biology and Physiology Department, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | | | | | - Parasuraman Jaisankar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- *Correspondence: Parasuraman Jaisankar, ; Arun Bandyopadhyay,
| | - Arun Bandyopadhyay
- Cardiovascular Disease and Respiratory Disorders Laboratory, Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- *Correspondence: Parasuraman Jaisankar, ; Arun Bandyopadhyay,
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5
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Achari A, Chatterjee S, Dey S, Kundu TK, Jaisankar P. Catecholase-catalyzed synthesis of wedelolactone, a natural coumestan and its analogs. Org Biomol Chem 2022; 21:89-92. [PMID: 36477994 DOI: 10.1039/d2ob02081e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Biocatalysis plays an important role in the synthesis of complex organic molecules. Wedelolactone, a natural coumestan, has been reported to have many bioactive properties. A novel and efficient enzyme obtained from sweet potato juice was used for condensation of 4-hydroxycoumarins with catechols to produce wedelolactone and its structurally diverse analogs in moderate to good yields under mild reaction conditions. Hence, this enzymatic approach creates an opportunity to access many coumestan-based compounds that are potential building blocks for the synthesis of pharmaceutically important molecules.
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Affiliation(s)
- Anushree Achari
- Laboratory of Catalysis and Chemical Biology, Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata-700032, India.
| | - Sourav Chatterjee
- Laboratory of Catalysis and Chemical Biology, Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata-700032, India. .,Department of Chemistry, University of Minnesota, Minneapolis, MN55455, USA
| | - Sudip Dey
- Laboratory of Catalysis and Chemical Biology, Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata-700032, India.
| | - Tapas K Kundu
- Transcription and Disease Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru-560064, India
| | - Parasuraman Jaisankar
- Laboratory of Catalysis and Chemical Biology, Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata-700032, India.
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6
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Sengupta S, Abhinav N, Singh S, Dutta J, Mabalirajan U, Kaliyamurthy K, Mukherjee PK, Jaisankar P, Bandyopadhyay A. Standardised Sonneratia apetala Buch.-Ham. fruit extract inhibits human neutrophil elastase and attenuates elastase-induced lung injury in mice. Front Pharmacol 2022; 13:1011216. [PMID: 36569308 PMCID: PMC9768866 DOI: 10.3389/fphar.2022.1011216] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) along with asthma is a major and increasing global health problem. Smoking contributes to about 80%-90% of total COPD cases in the world. COPD leads to the narrowing of small airways and destruction of lung tissue leading to emphysema primarily caused by neutrophil elastase. Neutrophil elastase plays an important role in disease progression in COPD patients and has emerged as an important target for drug discovery. Sonneratia apetala Buch.-Ham. is a mangrove plant belonging to family Sonneratiaceae. It is widely found in the Sundarban regions of India. While the fruits of this plant have antibacterial, antifungal, antioxidant and astringent activities, fruit and leaf extracts have been shown to reduce the symptoms of asthma and cough. The aim of this study is to find whether hydro alcoholic fruit extracts of S. apetala inhibit neutrophil elastase and thus prevent the progression of neutrophil elastase-driven lung emphysema. The hydroalcoholic extract, ethanol: water (90:10), of the S. apetala Buch.-Ham. fresh fruits (SAM) were used for neutrophil elastase enzyme kinetic assay and IC50 of the extract was determined. The novel HPLC method has been developed and the extract was standardized with gallic acid and ellagic acid as standards. The extract was further subjected to LC-MS2 profiling to identify key phytochemicals. The standardized SAM extract contains 53 μg/mg of gallic acid and 95 μg/mg of ellagic acid, based on the HPLC calibration curve. SAM also reversed the elastase-induced morphological change of human epithelial cells and prevented the release of ICAM-1 in vitro and an MTT assay was conducted to assess the viability. Further, 10 mg/kg SAM had reduced alveolar collapse induced by neutrophil elastase in the mice model. Thus, in this study, we reported for the first time that S. apetala fruit extract has the potential to inhibit human neutrophil elastase in vitro and in vivo.
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Affiliation(s)
- Sayantan Sengupta
- Cardiovascular Disease and Respiratory Disorders Laboratory, Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Nipun Abhinav
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, India
| | - Sabita Singh
- Molecular Pathobiology of Respiratory Diseases Laboratory, Cell Biology and Physiology Department, CSIR-Indian Institute of Chemical Biology, Kolkata, India,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Joytri Dutta
- Molecular Pathobiology of Respiratory Diseases Laboratory, Cell Biology and Physiology Department, CSIR-Indian Institute of Chemical Biology, Kolkata, India,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Ulaganathan Mabalirajan
- Molecular Pathobiology of Respiratory Diseases Laboratory, Cell Biology and Physiology Department, CSIR-Indian Institute of Chemical Biology, Kolkata, India,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Karthigeyan Kaliyamurthy
- Central National Herbarium, Botanical Survey of India, A.J.C.B. Indian Botanic Garden, Howrah, India
| | | | - Parasuraman Jaisankar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India,Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, Kolkata, India,*Correspondence: Parasuraman Jaisankar, ; Arun Bandyopadhyay,
| | - Arun Bandyopadhyay
- Cardiovascular Disease and Respiratory Disorders Laboratory, Cell Biology and Physiology Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India,*Correspondence: Parasuraman Jaisankar, ; Arun Bandyopadhyay,
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7
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Mondal B, Gupta VK, Hansda B, Bhoumik A, Mondal T, Majumder HK, Edwards-Gayle CJC, Hamley IW, Jaisankar P, Banerjee A. Amino acid containing amphiphilic hydrogelators with antibacterial and antiparasitic activities. Soft Matter 2022; 18:7201-7216. [PMID: 36098333 DOI: 10.1039/d2sm00562j] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Nanoscale self-assembly of peptide constructs represents a promising means to present bioactive motifs to develop new functional materials. Here, we present a series of peptide amphiphiles which form hydrogels based on β-sheet nanofibril networks, several of which have very promising anti-microbial and anti-parasitic activities, in particular against multiple strains of Leishmania including drug-resistant ones. Aromatic amino acid based amphiphilic supramolecular gelators C14-Phe-CONH-(CH2)n-NH2 (n = 6 for P1 and n = 2 for P3) and C14-Trp-CONH-(CH2)n-NH2 (n = 6 for P2 and n = 2 for P4) have been synthesized and characterized, and their self-assembly and gelation behaviour have been investigated in the presence of ultrapure water (P1, P2, and P4) or 2% DMSO(v/v) in ultrapure water (P3). The rheological, morphological and structural properties of the gels have been comprehensively examined. The amphiphilic gelators (P1 and P3) were found to be active against both Gram-positive bacteria B. subtilis and Gram-negative bacteria E. coli and P. aeruginosa. Interestingly, amphiphiles P1 and P3 containing an L-phenylalanine residue show both antibacterial and antiparasitic activities. Herein, we report that synthetic amphiphiles with an amino acid residue exhibit a potent anti-protozoan activity and are cytotoxic towards a wide array of protozoal parasites, which includes Indian varieties of Leishmania donovani and also kill resistant parasitic strains including BHU-575, MILR and CPTR cells. These gelators are highly cytotoxic to promastigotes of Leishmania and trigger apoptotic-like events inside the parasite. The mechanism of killing the parasite is shown and these gelators are non-cytotoxic to host macrophage cells indicating the potential use of these gels as therapeutic agents against multiple forms of leishmaniasis in the near future.
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Affiliation(s)
- Biplab Mondal
- School of Biological Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India.
| | - Vivek Kumar Gupta
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata-700 032, India.
| | - Biswanath Hansda
- School of Biological Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India.
| | - Arpita Bhoumik
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, 2A & 2B Raja S. C. Mullick Road, Kolkata-700 032, India
| | - Tanushree Mondal
- School of Biological Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India.
| | - Hemanta K Majumder
- Infectious Diseases and Immunology Division, CSIR-Indian Institute of Chemical Biology, 2A & 2B Raja S. C. Mullick Road, Kolkata-700 032, India
| | | | - Ian W Hamley
- Department of Chemistry, University of Reading, Reading RG6 6AD, UK
| | - Parasuraman Jaisankar
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata-700 032, India.
| | - Arindam Banerjee
- School of Biological Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India.
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Kumar S, Acharya C, Abhinav N, Jaisankar P. Novel Spirooxindole Derivatives as Potential Non‐Detergent Type Spermicides. ChemistrySelect 2022. [DOI: 10.1002/slct.202202210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shrabanti Kumar
- Laboratory of Catalysis and Chemical Biology Department of Organic and Medicinal Chemistry CSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road, Jadavpur Kolkata 700032 India
| | - Chiranjit Acharya
- Laboratory of Catalysis and Chemical Biology Department of Organic and Medicinal Chemistry CSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road, Jadavpur Kolkata 700032 India
| | - Nipun Abhinav
- Laboratory of Catalysis and Chemical Biology Department of Organic and Medicinal Chemistry CSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road, Jadavpur Kolkata 700032 India
- Department of Natural Products National Institute of Pharmaceutical Education and Research Kolkata 700054 India
| | - Parasuraman Jaisankar
- Laboratory of Catalysis and Chemical Biology Department of Organic and Medicinal Chemistry CSIR-Indian Institute of Chemical Biology 4, Raja S. C. Mullick Road, Jadavpur Kolkata 700032 India
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9
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Mallesh R, Khan J, Pradhan K, Roy R, Jana NR, Jaisankar P, Ghosh S. Design and Development of Benzothiazole-Based Fluorescent Probes for Selective Detection of Aβ Aggregates in Alzheimer's Disease. ACS Chem Neurosci 2022; 13:2503-2516. [PMID: 35926183 DOI: 10.1021/acschemneuro.2c00361] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The formation and accumulation of amyloid beta (Aβ) peptide are considered the crucial events that are responsible for the progression of Alzheimer's disease (AD). Herein, we have designed and synthesized a series of fluorescent probes by using electron acceptor-donor end groups interacting with a π-conjugating system for the detection of Aβ aggregates. The chemical structure of these probes denoted as RMs, having a conjugated π-system (C═C), showed a maximum emission in PBS (>600 nm), which is the best range for a fluorescent imaging probe. Among all these probes, RM-28 showed an excellent fluorescence property with an emission maximum of >598 nm upon binding to Aβ aggregates. RM-28 also showed high sensitivity (7.5-fold) and high affinities toward Aβ aggregates (Kd = 175.69 ± 4.8 nM; Ka = 0.5 × 107 M-1). It can cross the blood-brain barrier of mice efficiently. The affinity of RM-28 toward Aβ aggregates was observed in 3xTg-AD brain sections of the hippocampus and cortex region using a fluorescent imaging technique, as well as an in vitro fluorescence-based binding assay with Aβ aggregates. Moreover, RM-28 is highly specific to Aβ aggregates and does not bind with intracellular proteins like bovine serum albumin (BSA) and α-synuclein (α-Syn) aggregates. The results indicate that the probe RM-28 emerges as an efficient and veritable highly specific fluorescent probe for the detection of Aβ aggregates in both in vitro and in vivo model systems.
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Affiliation(s)
- Rathnam Mallesh
- Department of Bioscience & Bioengineering, Indian Institute of Technology, Jodhpur, NH 65, Surpura Bypass Road, Karwar, Rajasthan 342037, India.,Organic and Medicinal Chemistry and Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, West Bengal 700032, India.,National Institute of Pharmaceutical Education and Research, Kolkata, Chunilal Bhawan 168, Maniktala Main Road, Kolkata 700054, India
| | - Juhee Khan
- Department of Bioscience & Bioengineering, Indian Institute of Technology, Jodhpur, NH 65, Surpura Bypass Road, Karwar, Rajasthan 342037, India.,Organic and Medicinal Chemistry and Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, West Bengal 700032, India
| | - Krishnangsu Pradhan
- Organic and Medicinal Chemistry and Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, West Bengal 700032, India
| | - Rajsekhar Roy
- Department of Bioscience & Bioengineering, Indian Institute of Technology, Jodhpur, NH 65, Surpura Bypass Road, Karwar, Rajasthan 342037, India
| | - Nihar Ranjan Jana
- School of Bioscience, Indian Institute of Technology, Kharagpur 721302, India
| | - Parasuraman Jaisankar
- Organic and Medicinal Chemistry and Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, West Bengal 700032, India
| | - Surajit Ghosh
- Department of Bioscience & Bioengineering, Indian Institute of Technology, Jodhpur, NH 65, Surpura Bypass Road, Karwar, Rajasthan 342037, India.,Organic and Medicinal Chemistry and Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata, West Bengal 700032, India.,National Institute of Pharmaceutical Education and Research, Kolkata, Chunilal Bhawan 168, Maniktala Main Road, Kolkata 700054, India
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Zuma AA, Teixeira de Macedo-Silva S, Achari A, Vinayagam J, Bhattacharjee P, Chatterjee S, Gupta VK, Cristina de Sousa Leite A, Souza de Castro L, Jaisankar P, de Souza W. Furan derivatives impair proliferation and affect ultrastructural organization of Trypanosoma cruzi and Leishmania amazonensis. Exp Parasitol 2021; 224:108100. [PMID: 33744229 DOI: 10.1016/j.exppara.2021.108100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 02/26/2021] [Accepted: 03/08/2021] [Indexed: 11/17/2022]
Abstract
Chagas disease and leishmaniasis are neglected diseases caused by parasites of the Trypanosomatidae family and together they affect millions of people in the five continents. The treatment of Chagas disease is based on benznidazole, whereas for leishmaniasis few drugs are available, such as amphotericin B and miltefosine. In both cases, the current treatment is not entirely efficient due to toxicity or side effects. Encouraged by the need to discover valid targets and new treatment options, we evaluated 8 furan compounds against Trypanosoma cruzi and Leishmania amazonensis, considering their effects against proliferation, infection, and ultrastructure. Many of them were able to impair T. cruzi and L. amazonensis proliferation, as well as cause ultrastructural alterations, such as Golgi apparatus disorganization, autophagosome formation, and mitochondrial swelling. Taken together, the results obtained so far make these compounds eligible for further steps of chemotherapy study.
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Affiliation(s)
- Aline Araujo Zuma
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro, CEP 21941-902, Brazil; Instituto Nacional de Ciência e Tecnologia de Biologia Estrutural e Bioimagem, Av. Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro, CEP 21941-902, Brazil
| | - Sara Teixeira de Macedo-Silva
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro, CEP 21941-902, Brazil; Instituto Nacional de Ciência e Tecnologia de Biologia Estrutural e Bioimagem, Av. Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro, CEP 21941-902, Brazil
| | - Anushree Achari
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Kolkata, 700 032, India
| | - Jayaraman Vinayagam
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Kolkata, 700 032, India
| | - Pinaki Bhattacharjee
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Kolkata, 700 032, India
| | - Sourav Chatterjee
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Kolkata, 700 032, India
| | - Vivek Kumar Gupta
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Kolkata, 700 032, India
| | - Amanda Cristina de Sousa Leite
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro, CEP 21941-902, Brazil; Instituto Nacional de Ciência e Tecnologia de Biologia Estrutural e Bioimagem, Av. Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro, CEP 21941-902, Brazil
| | - Lucas Souza de Castro
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro, CEP 21941-902, Brazil; Instituto Nacional de Ciência e Tecnologia de Biologia Estrutural e Bioimagem, Av. Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro, CEP 21941-902, Brazil
| | - Parasuraman Jaisankar
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Kolkata, 700 032, India.
| | - Wanderley de Souza
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho Universidade Federal do Rio de Janeiro, Av. Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro, CEP 21941-902, Brazil; Instituto Nacional de Ciência e Tecnologia de Biologia Estrutural e Bioimagem, Av. Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro, CEP 21941-902, Brazil.
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Goel N, Gajbhiye RL, Saha M, Nagendra C, Reddy AM, Ravichandiran V, Das Saha K, Jaisankar P. A comparative assessment of in vitro cytotoxic activity and phytochemical profiling of Andrographis nallamalayana J.L.Ellis and Andrographis paniculata (Burm. f.) Nees using UPLC-QTOF-MS/MS approach. RSC Adv 2021; 11:35918-35936. [PMID: 35492784 PMCID: PMC9043227 DOI: 10.1039/d1ra07496b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 10/18/2021] [Indexed: 12/15/2022] Open
Abstract
Andrographis paniculata (Burm. f.) Nees and Andrographis nallamalayana J.L.Ellis have traditionally been used to treat various ailments such as mouth ulcers, intermittent fever, inflammation, snake bite. This study compares the comparative in vitro cytotoxic activity, and phytochemical profiling of methanol extract of A. nallamalayana (ANM) and A. paniculata (APM). UPLC-ESI-QTOF-MS/MS analysis has been performed. The cytotoxic activity of crude methanol extracts were evaluated against three different cancer cell lines (HCT 116, HepG2, and A549 cell line). Both plants' extract exhibited significant cytotoxic activity against tested cell lines in a dose-dependent manner. IC50 of ANM and APM in HCT 116 cell was 11.71 ± 2.48 μg ml−1 and 45.32 ± 0.86 μg ml−1 and in HepG2 cell line was 15.65 ± 2.25 μg ml−1 and 60.32 ± 1.05 μg ml−1 respectively. Cytotoxicity of these two extracts was comparatively similar in A549 cells. ANM induced cytotoxicity involved programmed cell death, externalisation of phosphatidylserine, ROS generation, up-regulation and down-regulation of major apoptotic markers. HRMS analysis of ANM and APM resulted in the identification of 59 and 42 compounds, respectively. Further, using the MS/MS fragmentation approach, 20 compounds, of which 18 compounds were identified for the first time from ANM, which belongs to phenolic acids, flavonoids, and their glycosides. Three known compounds, echioidinin, skullcapflavone I and 5,2′,6′-trihydroxy-7-methoxyflavone 2′-O-β-d-glucopyranoside, were isolated from A. nallamalayana and their crystal structures were reported for the first time. Subsequently, seven major compounds were identified in A. nallamalayana by direct comparison (retention time and UV-spectra) with authentic commercial standards and isolated compounds using HPLC-UV analysis. The cytotoxicity of phytochemicals from both the plants using in silico tools also justify their in vitro cytotoxic activity. It is the first report on the comparative characterisation of phytochemicals present in the methanolic extract of both the species of Andrographis, along with the cytotoxic activity of A. nallamalayana. A comparative study of two Andrographis species have been done, and it was found that Andrographis nallamalayana J.L.Ellis is phytochemically and biologically different from Andrographis paniculata (Burm. f.) Nees.![]()
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Affiliation(s)
- Narender Goel
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER-Kolkata), Chunilal Bhawan, 168, Maniktala Main Road, 700054, Kolkata, India
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata-700032, India
| | - Rahul L. Gajbhiye
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER-Kolkata), Chunilal Bhawan, 168, Maniktala Main Road, 700054, Kolkata, India
| | - Moumita Saha
- Cancer Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India
| | - Chennuru Nagendra
- Department of Botany, Yogi Vemana University, Vemanapuram, Kadapa, Andhra Pradesh 516005, India
| | | | - V. Ravichandiran
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER-Kolkata), Chunilal Bhawan, 168, Maniktala Main Road, 700054, Kolkata, India
| | - Krishna Das Saha
- Cancer Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India
| | - Parasuraman Jaisankar
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Kolkata-700032, India
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Mahato SK, Acharya C, Wellington KW, Bhattacharjee P, Jaisankar P. InCl 3: A Versatile Catalyst for Synthesizing a Broad Spectrum of Heterocycles. ACS Omega 2020; 5:2503-2519. [PMID: 32095675 PMCID: PMC7033683 DOI: 10.1021/acsomega.9b03686] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 01/17/2020] [Indexed: 06/10/2023]
Abstract
This review deals with the recent applications of the indium trichloride (InCl3) catalyst in the synthesis of a broad spectrum of heterocyclic compounds. Over the years, a number of reviews on the applications of InCl3-catalyzed organic synthesis have appeared in the literature. It is evident that InCl3 has emerged as a valuable catalyst for a wide range of organic transformations due to its stability when exposed to moisture and also in an aqueous medium. The most attractive feature of this review is the application of the InCl3 catalyst for synthesizing bioactive heterocyclic compounds. The study of InCl3-catalyzed organic reactions has high potential and better intriguing aspects, which are anticipated to originate from this field of research.
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Affiliation(s)
- Sanjit K. Mahato
- TCG Lifesciences
Private Limited, Sector V, Salt
Lake City, Kolkata 700
091, India
| | - Chiranjit Acharya
- Department of Applied Biology, CSIR-India Institute of Chemical Technology, Tarnaka, Hyderabad 500007, India
| | | | - Pinaki Bhattacharjee
- Laboratory of Catalysis
and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Parasuraman Jaisankar
- Laboratory of Catalysis
and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, Kolkata 700032, India
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13
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Bhattacharjee P, Chatterjee S, Achari A, Saha A, Nandi D, Acharya C, Chatterjee K, Ghosh S, Swarnakar S, Jaisankar P. A bis-indole/carbazole based C5-curcuminoid fluorescent probe with large Stokes shift for selective detection of biothiols and application to live cell imaging. Analyst 2020; 145:1184-1189. [DOI: 10.1039/c9an02190f] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A series of heterocyclic C5-Curcuminoid (PJ1–PJ6) having large Stokes shift (Δλ= 104–173 nm) have been synthesized under the microwave irradiation andPJ1has been utilized for selective detection of thiols in A375 cells and apoptosis in AGS cells.
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14
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Majumder M, Debnath S, Gajbhiye RL, Saikia R, Gogoi B, Samanta SK, Das DK, Biswas K, Jaisankar P, Mukhopadhyay R. Ricinus communis L. fruit extract inhibits migration/invasion, induces apoptosis in breast cancer cells and arrests tumor progression in vivo. Sci Rep 2019; 9:14493. [PMID: 31601896 PMCID: PMC6787038 DOI: 10.1038/s41598-019-50769-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 09/10/2019] [Indexed: 12/13/2022] Open
Abstract
Medicinal plant-based therapies can be important for treatment of cancer owing to high efficiency, low cost and minimal side effects. Here, we report the anti-cancer efficacy of Ricinus communis L. fruit extract (RCFE) using estrogen positive MCF-7 and highly aggressive, triple negative MDA-MB-231 breast cancer cells. RCFE induced cytotoxicity in these cells in dose and time-dependent manner. It also demonstrated robust anti-metastatic activity as it significantly inhibited migration, adhesion, invasion and expression of matrix metalloproteinases (MMPs) 2 and 9 in both cell lines. Further, flow cytometry analysis suggested RCFE-mediated induction of apoptosis in these cells. This was supported by attenuation of anti-apoptotic Bcl-2, induction of pro-apoptotic Bax and caspase-7 expressions as well as PARP cleavage upon RCFE treatment. RCFE (0.5 mg/Kg body weight) treatment led to significant reduction in tumor volume in 4T1 syngeneic mouse model. HPLC and ESI-MS analysis of active ethyl acetate fraction of RCFE detected four compounds, Ricinine, p-Coumaric acid, Epigallocatechin and Ricinoleic acid. Individually these compounds showed cytotoxic and migration-inhibitory activities. Overall, this study for the first time demonstrates the anti-cancer efficacy of the fruit extract of common castor plant which can be proposed as a potent candidate for the treatment of breast cancer.
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Affiliation(s)
- Munmi Majumder
- Cellular, Molecular and Environmental Biotechnology Laboratory, Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, 784028, Assam, India
| | - Shibjyoti Debnath
- Division of Molecular Medicine, Bose Institute, P1/12 CIT Road, Scheme VIIM, Kolkata, 700054, India
| | - Rahul L Gajbhiye
- Laboratory of Catalysis and Chemical Biology, Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Jadavpur, Kolkata, 700032, India
| | - Rimpi Saikia
- Cellular, Molecular and Environmental Biotechnology Laboratory, Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, 784028, Assam, India
| | - Bhaskarjyoti Gogoi
- Institute of Advanced Study in Science and Technology, Vigyan Path, Paschim Boragaon, Guwahati, Assam, 781035, India
- Department of Biotechnology Royal School of Bio-Sciences Royal Global University, Guwahati, Assam, 781035, India
| | - Suman Kumar Samanta
- Institute of Advanced Study in Science and Technology, Vigyan Path, Paschim Boragaon, Guwahati, Assam, 781035, India
| | - Deepjyoti K Das
- Cellular, Molecular and Environmental Biotechnology Laboratory, Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, 784028, Assam, India
| | - Kaushik Biswas
- Division of Molecular Medicine, Bose Institute, P1/12 CIT Road, Scheme VIIM, Kolkata, 700054, India
| | - Parasuraman Jaisankar
- Laboratory of Catalysis and Chemical Biology, Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Jadavpur, Kolkata, 700032, India
| | - Rupak Mukhopadhyay
- Cellular, Molecular and Environmental Biotechnology Laboratory, Department of Molecular Biology and Biotechnology, Tezpur University, Tezpur, 784028, Assam, India.
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15
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Banerjee S, Mukherjee N, Gajbhiye RL, Mishra S, Jaisankar P, Datta S, Das Saha K. Intracellular anti-leishmanial effect of Spergulin-A, a triterpenoid saponin of Glinus oppositifolius. Infect Drug Resist 2019; 12:2933-2942. [PMID: 31571946 PMCID: PMC6756365 DOI: 10.2147/idr.s211721] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 08/06/2019] [Indexed: 12/19/2022] Open
Abstract
Background Many of present chemotherapeutics are inadequate and also resistant against visceral leishmaniasis (VL), an immunosuppressive ailment caused by Leishmania donovani. Despite the interest in plant-based drug development, no antileishmanial drugs from plant source are currently available. Glinus oppositifolius had been reported in favor of being immune modulators along with other traditional uses. Novel anti-VL therapies can rely on host immune-modulation with associated leishmanicidal action. Objective Discovery of novel plant-based antileishmanial compound from G. oppositifolius having permissible side effects. Methods With this rationale, an n-BuOH fraction of the methanolic extract of the plant and obtained triterpenoid saponin Spergulin-A were evaluated against acellular and intracellular L. donovani. Immunostimulatory activity of them was confirmed by elevated TNF-α and extracellular NO production from treated MФs and was found nontoxic to the host cells. Identification and structure confirmation for isolated Spergulin-A was performed by ESI-MS,13C, and 1H NMR. Results Spergulin-A was found ineffective against the acellular forms while, against the intracellular parasites at 30 μg/mL, the reduction was 92.6% after 72 hrs. Spergulin-A enhanced ROS and nitric oxide (NO) release and changes in Gp91-phox, i-NOS, and pro and anti-inflammatory cytokines elaborated its intracellular anti-leishmanial activity. Conclusion The results supported that G. oppositifolius and Spergulin-A can potentiate new lead molecules for the development of alternative drugs against VL.
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Affiliation(s)
- Saswati Banerjee
- Cancer Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Niladri Mukherjee
- Cancer Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Rahul L Gajbhiye
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Snehasis Mishra
- Cancer Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Parasuraman Jaisankar
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata 700032, India
| | - Sriparna Datta
- Department of Chemical Technology, University of Calcutta, Kolkata 700009, India
| | - Krishna Das Saha
- Cancer Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, Kolkata 700032, India
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16
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Chatterjee S, Bhattacharjee P, Butterfoss GL, Achari A, Jaisankar P. Establishment of atropisomerism in 3-indolyl furanoids: a synthetic, experimental and theoretical perspective. RSC Adv 2019; 9:22384-22388. [PMID: 35519481 PMCID: PMC9066644 DOI: 10.1039/c9ra05350f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 07/15/2019] [Indexed: 11/21/2022] Open
Abstract
A number of axially chiral 3-indolyl furanoids have been synthesized and the individual enantiomers are found to be configurationally stable and isolable at room temperature.
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Affiliation(s)
- Sourav Chatterjee
- Laboratory of Catalysis and Chemical Biology
- Department of Organic and Medicinal Chemistry
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700 032
- India
| | - Pinaki Bhattacharjee
- Laboratory of Catalysis and Chemical Biology
- Department of Organic and Medicinal Chemistry
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700 032
- India
| | - Glenn L. Butterfoss
- Center for Genomics and Systems Biology
- New York University Abu Dhabi
- Abu Dhabi-129188
- United Arab Emirates
| | - Anushree Achari
- Laboratory of Catalysis and Chemical Biology
- Department of Organic and Medicinal Chemistry
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700 032
- India
| | - Parasuraman Jaisankar
- Laboratory of Catalysis and Chemical Biology
- Department of Organic and Medicinal Chemistry
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700 032
- India
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17
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Nahak P, Gajbhiye RL, Karmakar G, Guha P, Roy B, Besra SE, Bikov AG, Akentiev AV, Noskov BA, Nag K, Jaisankar P, Panda AK. Orcinol Glucoside Loaded Polymer - Lipid Hybrid Nanostructured Lipid Carriers: Potential Cytotoxic Agents against Gastric, Colon and Hepatoma Carcinoma Cell Lines. Pharm Res 2018; 35:198. [PMID: 30151753 DOI: 10.1007/s11095-018-2469-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 07/30/2018] [Indexed: 12/30/2022]
Abstract
PURPOSE Orcinol glucoside (OG) - loaded nanostructured lipid carrier (NLC), coated with polyethylene glycol-25/55-stearate (PEG-25/55-SA), were explored for delivering OG to improve in vitro cytotoxicity against gastrointestinal tract (GIT), colon and hepatoma carcinoma cell lines. It is being expected that the PEGylated formulations would possess the sustainability in withstanding the adverse physiological extremities like the most significant metabolic activities and phase I / II enzymatic activities in the intestines. METHODS NLCs were prepared using tristearin, oleic acid and PEG-25/55-stearate by hot homogenization-ultrasonic dispersion; characterized by DLS, TEM, SEM, AFM, entrapment efficiency and drug loading capacity studies. RESULTS NLC diameter ranged from 160 to 230 nm with negative zeta potential of -8 to -20 mV. TEM/SEM and AFM studies suggest spherical and smooth surface morphologies. Differential scanning calorimetry studies reveal the loss of crystallinity when OG was incorporated into the NLC. NLCs showed initial burst release, followed by sustained release of OG. PEG-NLC exhibited superior anticancer activity against GIT and also in hepatoma cancer cell lines. CONCLUSIONS This is the first report demonstrating a practical approach for possible oral delivery of OG in GIT and targeting hepatoma cancer, warranting further in vivo studies for superior management of GIT cancer.
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Affiliation(s)
- Prasant Nahak
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, 734 013, India
| | - Rahul L Gajbhiye
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullcik Road, Jadavpur, Kolkata, West Bengal, 700032, India
| | - Gourab Karmakar
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, 734 013, India
| | - Pritam Guha
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, 734 013, India
| | - Biplab Roy
- Department of Chemistry, University of North Bengal, Darjeeling, West Bengal, 734 013, India
| | - Shila Elizabeth Besra
- Cancer Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullcik Road, Jadavpur, Kolkata, West Bengal, 700032, India
| | - Alexey G Bikov
- Department of Colloid Chemistry, Saint Petersburg State University, Universitetsky pr. 26, Saint Petersburg, 198504, Russia
| | - Alexander V Akentiev
- Department of Colloid Chemistry, Saint Petersburg State University, Universitetsky pr. 26, Saint Petersburg, 198504, Russia
| | - Boris A Noskov
- Department of Colloid Chemistry, Saint Petersburg State University, Universitetsky pr. 26, Saint Petersburg, 198504, Russia
| | - Kaushik Nag
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, Canada
| | - Parasuraman Jaisankar
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullcik Road, Jadavpur, Kolkata, West Bengal, 700032, India.
| | - Amiya Kumar Panda
- Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, West Bengal, 721 102, India.
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19
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Banerjee R, Raju A, Ngima Nthenge-Ngumbau D, Singh R, Jaisankar P, Mohanakumar K, Biswas S. Tetrahydroisoquinoline molecule of Indian ayurveda medicine: Therapeutic potential in Parkinson’s disease. Parkinsonism Relat Disord 2018. [DOI: 10.1016/j.parkreldis.2017.11.295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Affiliation(s)
- Parag Savla
- Organic and Medicinal Chemistry Division; CSIR-IICB; 4, Raja S.C. Mullick Road Jadavpur Kol-32
- NIPER-Kolkata; CSIR-IICB-Campus; Kol-32 India
| | - Gaurav Das
- Organic and Medicinal Chemistry Division; CSIR-IICB; 4, Raja S.C. Mullick Road Jadavpur Kol-32
- AcSIR; CSIR-IICB campus; Jadavpur Kol-32
| | - Prasenjit Mondal
- Organic and Medicinal Chemistry Division; CSIR-IICB; 4, Raja S.C. Mullick Road Jadavpur Kol-32
- AcSIR; CSIR-IICB campus; Jadavpur Kol-32
| | - Rahul Laxman Gajbhiye
- Organic and Medicinal Chemistry Division; CSIR-IICB; 4, Raja S.C. Mullick Road Jadavpur Kol-32
- AcSIR; CSIR-IICB campus; Jadavpur Kol-32
| | - Parasuraman Jaisankar
- Organic and Medicinal Chemistry Division; CSIR-IICB; 4, Raja S.C. Mullick Road Jadavpur Kol-32
- AcSIR; CSIR-IICB campus; Jadavpur Kol-32
- NIPER-Kolkata; CSIR-IICB-Campus; Kol-32 India
| | - Surajit Ghosh
- Organic and Medicinal Chemistry Division; CSIR-IICB; 4, Raja S.C. Mullick Road Jadavpur Kol-32
- AcSIR; CSIR-IICB campus; Jadavpur Kol-32
- NIPER-Kolkata; CSIR-IICB-Campus; Kol-32 India
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21
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Chatterjee S, Hintermann L, Mandal M, Achari A, Gupta S, Jaisankar P. Fiaud's Acid: A Brønsted Acid Catalyst for Enantioselective Friedel-Crafts Alkylation of Indoles with 2-Alkene-1,4-diones. Org Lett 2017; 19:3426-3429. [PMID: 28609100 DOI: 10.1021/acs.orglett.7b01383] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fiaud's acid (trans-1-hydroxy-2,5-diphenylphospholane 1-oxide), a phospholane-based phosphinic acid, is introduced as an efficient chiral Brønsted acid catalyst that mediates the asymmetric Friedel-Crafts alkylation of indoles with 2-butene-1,4-diones. With a catalyst loading of 10 mol %, the reaction proceeded smoothly to afford 2-(indol-3-yl)butane-1,4-diones in high yield (up to 82%) and high enantioselectivity (up to 91% ee, one such product showed enhanced ee of 98% after recrystallization). The reaction conditions are sufficiently mild to tolerate sensitive functionality at room temperature and are therefore suitable for the synthesis of complex targets.
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Affiliation(s)
- Sourav Chatterjee
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology , 4 Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Lukas Hintermann
- Department Chemie and TUM Catalysis Research Center, Technische Universität München , 80333 München, Germany
| | - Madhumita Mandal
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology , 4 Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Anushree Achari
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology , 4 Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Sreya Gupta
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology , 4 Raja S. C. Mullick Road, Kolkata 700 032, India
| | - Parasuraman Jaisankar
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology , 4 Raja S. C. Mullick Road, Kolkata 700 032, India
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Vinayagam J, Gajbhiye RL, Mandal L, Arumugam M, Achari A, Jaisankar P. Substituted furans as potent lipoxygenase inhibitors: Synthesis, in vitro and molecular docking studies. Bioorg Chem 2017; 71:97-101. [PMID: 28143657 DOI: 10.1016/j.bioorg.2017.01.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 12/29/2016] [Accepted: 01/20/2017] [Indexed: 11/18/2022]
Abstract
A number of 2-methyl-4-(2-oxo-2-phenyl-ethyl)-5-phenyl-furan-3-carboxylic acid alkyl ester derivatives (3a-j) were synthesized and evaluated for their in vitro inhibitory activity on soybean lipoxygenase enzyme. Among the screened compounds, 5-(4-bromo-phenyl)-4-[2-(4-bromo-phenyl)-2-oxo-ethyl]-2-methyl-furan-3-carboxylic acid methyl ester (3g) has been found to exhibit potent inhibitory activity with IC5012.8μM using nordihydroguaiaretic acid (NDGA) as standard. Molecular modeling was employed for better understanding of the binding between compounds and soybean lipoxygenase enzyme. The predicted binding energy values correlated well with the observed in vitro data.
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Affiliation(s)
- Jayaraman Vinayagam
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR - Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata 700 032, India
| | - Rahul L Gajbhiye
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR - Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata 700 032, India
| | - Likhit Mandal
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR - Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata 700 032, India
| | - Meyyappan Arumugam
- School of Environmental Studies, Jadavpur University, Kolkata 700 032, India
| | - Anushree Achari
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR - Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata 700 032, India
| | - Parasuraman Jaisankar
- Laboratory of Catalysis and Chemical Biology, Department of Organic and Medicinal Chemistry, CSIR - Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata 700 032, India.
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Gorain B, Choudhury H, Tekade RK, Karan S, Jaisankar P, Pal TK. Comparative biodistribution and safety profiling of olmesartan medoxomil oil-in-water oral nanoemulsion. Regul Toxicol Pharmacol 2016; 82:20-31. [DOI: 10.1016/j.yrtph.2016.10.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Revised: 10/28/2016] [Accepted: 10/28/2016] [Indexed: 10/20/2022]
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Chatterjee S, Butterfoss GL, Mandal M, Paul B, Gupta S, Bonneau R, Jaisankar P. Racemization barriers of atropisomeric 3,3′-bipyrroles: an experimental study with theoretical verification. RSC Adv 2016. [DOI: 10.1039/c6ra07585a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The activation barrier of racemization was determined for atropisomeric 3,3′-bipyrroles and they are found to be configurationally stable.
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Affiliation(s)
- Sourav Chatterjee
- Laboratory of Catalysis and Chemical Biology
- Department of Organic and Medicinal Chemistry
- CSIR-Indian Institute of Chemical Biology
- Kolkata – 700 032
- India
| | - Glenn L. Butterfoss
- Center for Genomics and Systems Biology
- New York University Abu Dhabi
- Abu Dhabi-129188
- United Arab Emirates
| | - Madhumita Mandal
- Laboratory of Catalysis and Chemical Biology
- Department of Organic and Medicinal Chemistry
- CSIR-Indian Institute of Chemical Biology
- Kolkata – 700 032
- India
| | - Bishwajit Paul
- Brigham and Women's Hospital
- Harvard Medical School
- Boston
- USA
| | - Sreya Gupta
- Laboratory of Catalysis and Chemical Biology
- Department of Organic and Medicinal Chemistry
- CSIR-Indian Institute of Chemical Biology
- Kolkata – 700 032
- India
| | - Richard Bonneau
- Center for Genomics and Systems Biology
- New York University
- New York
- USA
| | - Parasuraman Jaisankar
- Laboratory of Catalysis and Chemical Biology
- Department of Organic and Medicinal Chemistry
- CSIR-Indian Institute of Chemical Biology
- Kolkata – 700 032
- India
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Abstract
Plant-derived natural products have made their own niche in the treatment of neurological diseases since time immemorial. Parkinson's disease (PD), the second most prevalent neurodegenerative disorder, has no cure and the treatment available currently is symptomatic. This chapter thoughtfully and objectively assesses the scientific basis that supports the increasing use of these plant-derived natural products for the treatment of this chronic and progressive disorder. Proper considerations are made on the chemical nature, sources, preclinical tests and their validity, and mechanisms of behavioural or biochemical recovery observed following treatment with various plants derived natural products relevant to PD therapy. The scientific basis underlying the neuroprotective effect of 6 Ayurvedic herbs/formulations, 12 Chinese medicinal herbs/formulations, 33 other plants, and 5 plant-derived molecules have been judiciously examined emphasizing behavioral, cellular, or biochemical aspects of neuroprotection observed in the cellular or animal models of the disease. The molecular mechanisms triggered by these natural products to promote cell survivability and to reduce the risk of cellular degeneration have also been brought to light in this study. The study helped to reveal certain limitations in the scenario: lack of preclinical studies in all cases barring two; heavy dependence on in vitro test systems; singular animal or cellular model to establish any therapeutic potential of drugs. This strongly warrants further studies so as to reproduce and confirm these reported effects. However, the current literature offers scientific credence to traditionally used plant-derived natural products for the treatment of PD.
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Affiliation(s)
- T Sengupta
- Division of Cell Biology & Physiology, Indian Institute of Chemical Biology (CSIR, Govt of India), 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700 032, India
| | - J Vinayagam
- Division of Chemistry, Indian Institute of Chemical Biology (CSIR, Govt of India), 4, Raja S.C. Mullick Road, Kolkata, 700 032, India
| | - R Singh
- Division of Cell Biology & Physiology, Indian Institute of Chemical Biology (CSIR, Govt of India), 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700 032, India
| | - P Jaisankar
- Division of Chemistry, Indian Institute of Chemical Biology (CSIR, Govt of India), 4, Raja S.C. Mullick Road, Kolkata, 700 032, India
| | - K P Mohanakumar
- Division of Cell Biology & Physiology, Indian Institute of Chemical Biology (CSIR, Govt of India), 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700 032, India. .,Inter University Centre for Biomedical Research & Super Specialty Hospital, Mahatma Gandhi University Campus at Thalappady, Rubber Board PO, Kottayam, 686009, Kerala, India.
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Banerjee T, Kar D, Krishna PR, Prabhakar S, Nomula R, Mallula VS, Ravindranath H, Sridhar G, Adepu R, Srikanth G, Mabalirajan U, Ghosh B, Jaisankar P, Johri R, Chakraborty D, Mishra V, Chhabra JK, Shukla M, Paul BN, Bandyopadhyay S, Roy S, Sharma GVM, Bandyopadhyay A. A novel triazine-aryl-bis-indole derivative inhibits both phosphodiesterase IV and expression of cell adhesion molecules. RSC Adv 2015. [DOI: 10.1039/c5ra11495k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Triazine-aryl-bis-indole derivative inhibits phosphodiesterase activity.
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Affiliation(s)
- Tanima Banerjee
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700032
- India
| | - Dipak Kar
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700032
- India
| | | | | | - Rajesh Nomula
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | | | | | - Gattu Sridhar
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Ramesh Adepu
- CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | | | | | - Balaram Ghosh
- CSIR-Institute of Genomics and Integrative Biology
- New Delhi
- India
| | | | - Rakesh Johri
- CSIR-Indian Institute of Integrative Medicine
- Jammu
- India
| | | | - Vani Mishra
- CSIR-Indian Institute of Toxicology Research
- Lucknow
- India
| | | | - Mamta Shukla
- CSIR-Indian Institute of Toxicology Research
- Lucknow
- India
| | | | | | - Siddhartha Roy
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700032
- India
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Chatterjee S, Bhattacharjee P, Temburu J, Nandi D, Jaisankar P. Indium trichloride catalyzed sp3 C–H bond functionalization of 2-alkyl azaarenes under microwave irradiation. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.058] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chaudhuri J, Chowdhury AA, Biswas N, Manna A, Chatterjee S, Mukherjee T, Chaudhuri U, Jaisankar P, Bandyopadhyay S. Superoxide activates mTOR-eIF4E-Bax route to induce enhanced apoptosis in leukemic cells. Apoptosis 2014; 19:135-48. [PMID: 24052408 DOI: 10.1007/s10495-013-0904-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Mammalian target of rapamycin (mTOR) is a central kinase that regulates cell survival, proliferation and translation. Reactive oxygen species (ROS) are second messengers with potential in manipulating cellular signaling. Here we report that two ROS generating phytochemicals, hydroxychavicol and curcumin synergize in leukemic cells in inducing enhanced apoptosis by independently activating both mitogen activated protein kinase (MAPK) (JNK and P(38)) and mTOR pathways. Low level transient ROS generated after co-treatment with these phytochemicals led to activation of these two pathways. Both mTOR and MAPK pathways played important roles in co-treatment-induced apoptosis, by knocking down either mTOR or MAPKs inhibited apoptosis. Activation of mTOR, as evident from phosphorylation of its downstream effector eukaryotic translation initiation factor 4E-binding protein 1, led to release of eukaryotic translation initiation factor 4E (eIF4E) which was subsequently phosphorylated by JNK leading to translation of pro-apoptotic proteins Bax and Bad without affecting the expression of anti-apoptotic protein Bcl-xl. Our data suggest that mTOR and MAPK pathways converge at eIF4E in co-treatment-induced enhanced apoptosis and provide mechanistic insight for the role of mTOR activation in apoptosis.
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Affiliation(s)
- Jaydeep Chaudhuri
- Division of Cancer Biology and Inflammatory Disorder, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), 4, Raja S.C. Mullick Road, Jadavpur, Kolkata, 700032, India
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Jaisankar P, Rajan V, Renu S, Geetha N. An elderly lady with a scalp swelling. Neth J Med 2014; 72:374-378. [PMID: 25178773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- P Jaisankar
- Departments of Medical Oncology and Pathology, Regional Cancer Centre, Trivandrum, India
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Mishra A, Vinayagam J, Saha S, Chowdhury S, Chowdhury SR, Jaisankar P, Majumder HK. Isobenzofuranone derivatives exhibit antileishmanial effect by inhibiting type II DNA topoisomerase and inducing host response. Pharmacol Res Perspect 2014; 2:e00070. [PMID: 25505614 PMCID: PMC4186449 DOI: 10.1002/prp2.70] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 06/11/2014] [Accepted: 07/15/2014] [Indexed: 12/12/2022] Open
Abstract
Leishmania, a protozoan parasite, causes a wide range of human diseases ranging from the localized self-healing cutaneous lesions to fatal visceral leishmaniasis. Toxicity of traditional first line drugs and emergence of drug-resistant strains have worsened the situation. DNA topoisomerase II in kinetoplastid protozoan parasites are of immense interest as drug target because they take part in replication of unusual kinetoplast DNA network. In this study, we have taken target-based therapeutic approaches to combat leishmaniasis. Two isobenzofuranone compounds, viz., (1) 3,5-bis(4-chlorophenyl)-7-hydroxyisobenzofuran-1(3H)-one (JVPH3) and (2) (4-bromo)-3'-hydroxy-5'-(4-bromophenyl)-benzophenone(JVPH4) were synthesized chemically and characterized by NMR and mass spectrometry analysis. Activity of type II DNA topoisomerase of leishmania (LdTOPII) was monitored by decatenation assay and plasmid cleavage assay. The antiparasitic activity of these compounds was checked in experimental BALB/c mice model of visceral leishmaniasis. Isobenzofuranone derivatives exhibited potent antileishmanial effect on both antimony (Sb) sensitive and resistant parasites. Treatment with isobenzofuranone derivatives on promastigotes caused induction of reactive oxygen species (ROS)-mediated apoptosis like cell death in leishmania. Both the compounds inhibited the decatenation activity of LdTOPII but have no effect on bi-subunit topoisomerase IB. Treatment of LdTOPII with isobenzofuranone derivatives did not stabilize cleavage complex formation both in vitro and in vivo. Moreover, treatment with isobenzofuranone derivatives on Leishmania donovani-infected mice resulted in clearance of parasites in liver and spleen by induction of Th1 cytokines. Taken together, our data suggest that these compounds can be exploited as potential antileishmanial agents targeted to DNA topoisomerase II of the parasite.
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Affiliation(s)
- Amartya Mishra
- Molecular Parasitology Laboratory, Indian Institute of Chemical Biology Jadavpur, Kolkata, 700032, India
| | - Jayaraman Vinayagam
- Department of Chemistry, Indian Institute of Chemical Biology Jadavpur, Kolkata, 700032, India
| | - Sourav Saha
- Molecular Parasitology Laboratory, Indian Institute of Chemical Biology Jadavpur, Kolkata, 700032, India
| | - Sayan Chowdhury
- Molecular Parasitology Laboratory, Indian Institute of Chemical Biology Jadavpur, Kolkata, 700032, India
| | - Somenath Roy Chowdhury
- Molecular Parasitology Laboratory, Indian Institute of Chemical Biology Jadavpur, Kolkata, 700032, India
| | - Parasuraman Jaisankar
- Department of Chemistry, Indian Institute of Chemical Biology Jadavpur, Kolkata, 700032, India
| | - Hemanta K Majumder
- Molecular Parasitology Laboratory, Indian Institute of Chemical Biology Jadavpur, Kolkata, 700032, India
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Basu A, Jaisankar P, Kumar GS. Binding of novel 9-O-N-aryl/arylalkyl amino carbonyl methyl berberine analogs to poly(U)-poly(A)·poly(U) triplex and comparison to the duplex poly(A)-poly(U). Mol Biol Rep 2014; 41:5473-83. [PMID: 24874303 DOI: 10.1007/s11033-014-3421-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Accepted: 05/17/2014] [Indexed: 12/14/2022]
Abstract
Interaction of the 9-O-N-aryl/arylalkyl amino carbonyl methyl substituted analogs of the anticancer isoquinoline alkaloid berberine with RNA triplex, poly(U)-poly(A) · poly(U) has been studied in comparison to the duplex poly(A)-poly(U), using multiple biophysical techniques. Spectrophotometric and spectrofluorimetric studies established the non-cooperative binding mode of all the analogs with both the duplex and the triplex. However, berberine exhibited cooperative binding with poly(A)-poly(U) and non-cooperative binding with poly(U)-poly(A) · poly(U). Analog BER1 showed the highest affinity to both the duplex and the triplex followed by BER2 and BER3. The overall binding affinity varied as BER1 > BER2 > BER3 > BER. The magnitude of the quantum efficiency values (Q > 1) revealed that energy was transferred from the bases of the triplex and the duplex to the analogs. Comparative ferrocyanide quenching and viscosity studies unambiguously established a stronger intercalative geometry of the analogs to both the triplex and the duplex in comparison to berberine. Circular dichroism studies revealed that the alkaloids perturbed the conformation of both RNA helices. The binding of all the alkaloids was found to be exothermic from isothermal titration studies. Binding of the analogs was highly entropy driven while that of berberine was enthalpy dominated. The results presented here reveal strong and specific binding of these new berberine analogs to the RNA triplex and duplex and highlight the remarkable influence of the 9-substitution on the interaction profile.
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Affiliation(s)
- Anirban Basu
- Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata, 700 032, India
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Gorain B, Choudhury H, Kundu A, Sarkar L, Karmakar S, Jaisankar P, Pal TK. Nanoemulsion strategy for olmesartan medoxomil improves oral absorption and extended antihypertensive activity in hypertensive rats. Colloids Surf B Biointerfaces 2013; 115:286-94. [PMID: 24388859 DOI: 10.1016/j.colsurfb.2013.12.016] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 11/12/2013] [Accepted: 12/09/2013] [Indexed: 01/28/2023]
Abstract
Olmesartan medoxomil (OM) is hydrolyzed to its active metabolite olmesartan by the action of aryl esterase to exert its antihypertensive actions by selectively blocking angiotensin II-AT1 receptor. Poor aqueous solubility and uncontrolled enzymatic conversion of OM to its poorly permeable olmesartan limits its oral bioavailability. The aim of the current study was to formulate a novel nanoemulsion of OM to improve its pharmacokinetics and therapeutic efficacy. The oil-in-water (o/w) nanoemulsion of OM was developed using lipoid purified soybean oil 700, sefsol 218 and solutol HS 15. We have characterized the nanoemulsions by considering their thermodynamic stability, morphology, droplet size, zeta potential and viscosity and in vitro drug release characteristics in fasting state simulated gastric fluid (pH 1.2) and intestinal fluid (pH 6.5). The thermodynamically stable nanoemulsions comprises of spherical nanometer sized droplets (<50 nm) with low polydispersity index showed enhanced permeability through the Caco-2 cell monolayer. The concentration of active olmesartan in rat plasma following oral absorption study was determined by our validated LC-MS/MS method. The result of the pharmacokinetic study showed 2.8-fold increased in area under the curve (AUC0-27) of olmesartan upon oral administration of OM nanoemulsion and sustained release profile. Subsequent, in vivo studies with nanoemulsion demonstrated better and prolonged control of experimentally induced hypertension with 3-fold reduction in conventional dose. By analysing the findings of the present investigations based on stability study, Caco-2 permeability, pharmacokinetic profile and pharmacodynamic evaluation indicated that the nanoemulsion of OM (OMF6) could significantly enhance the oral bioavailability of relatively insoluble OM contributing to improved clinical application.
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Affiliation(s)
- Bapi Gorain
- Bioequivalence Study Centre, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Hira Choudhury
- Bioequivalence Study Centre, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Amit Kundu
- Division of Pharmacology, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Lipi Sarkar
- Division of Pharmacology, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - Sanmoy Karmakar
- Division of Pharmacology, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - P Jaisankar
- Department of Chemistry, Indian Institute of Chemical Biology, Jadavpur, Kolkata, India
| | - Tapan Kumar Pal
- Bioequivalence Study Centre, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India.
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Saha S, Mukherjee T, Chowdhury S, Mishra A, Chowdhury SR, Jaisankar P, Mukhopadhyay S, Majumder HK. The lignan glycosides lyoniside and saracoside poison the unusual type IB topoisomerase of Leishmania donovani and kill the parasite both in vitro and in vivo. Biochem Pharmacol 2013; 86:1673-87. [PMID: 24134912 DOI: 10.1016/j.bcp.2013.10.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 10/04/2013] [Accepted: 10/07/2013] [Indexed: 10/26/2022]
Abstract
Lignans are diphenyl propanoids with vast range of biological activities. The present study provides an important insight into the anti-leishmanial activities of two lignan glycosides, viz. lyoniside and saracoside. These compounds inhibit catalytic activities of topoisomerase IB (LdTopIB) of Leishmania donovani in non-competitive manner and stabilize the LdTopIB mediated cleavage complex formation both in vitro and in Leishmania promastigotes and subsequently inhibit the religation of cleaved strand. These two compounds not only poison LdTopIB but also can interact with the free enzyme LdTopIB. We have also shown that lyoniside and saracoside are cytotoxic to promastigotes and intracellular amastigotes. The protein-DNA complex formation leads to double strand breaks in DNA which ultimately triggers apoptosis-like cell death in the parasite. Along with their cytotoxicity towards sodium antimony gluconate (SAG) sensitive AG83 strain, their ability to kill SAG resistant GE1 strain makes these two compounds potential anti-leishmanial candidates. Not only they effectively kill L. donovani amastigotes inside macrophages in vitro, lyoniside and saracoside demonstrated strong anti-leishmanial efficacies in BALB/c mice model of leishmaniasis. Treatment with these lignan glycosides produce nitric oxide and reactive oxygen species which result in almost complete clearance of the liver and splenic parasite burden. These compounds do not inhibit human topoisomerase IB upto 200μM concentrations and had poor cytotoxic effect on uninfected cultured murine peritoneal macrophages upto 100μM concentrations. Taken together it can be concluded that these compounds can be developed into excellent therapeutic agent against deadly disease leishmaniasis.
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Affiliation(s)
- Sourav Saha
- Molecular Parasitology Laboratory (S.S., S.C., A.M., S.R.C., H.K.M.), Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Jadavpur, Kolkata 700032, India
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Basu A, Jaisankar P, Kumar GS. Photophysical and calorimetric studies on the binding of 9-O-substituted analogs of the plant alkaloid berberine to double stranded poly(A). J Photochem Photobiol B 2013; 125:105-14. [PMID: 23792948 DOI: 10.1016/j.jphotobiol.2013.05.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 05/20/2013] [Accepted: 05/20/2013] [Indexed: 01/06/2023]
Abstract
This interaction of four novel 9-O-substituted analogs of the plant alkaloid berberine with double stranded poly(A) was studied using a variety of biophysical techniques. Remarkably higher binding of two 9-O-ω-amino alkyl ether analogs compared to the two 9-O-N-aryl/arylalkyl amino carbonyl methyl berberine analogs was observed. Quantum efficiency values suggested that energy was transferred from the adenine base pairs to the analogs on binding. Ferrocyanide quenching and viscosity studies revealed the binding mode to be intercalative for these analogs. Circular dichroism studies showed that these analogs induced significant conformational changes in the secondary structure of ds poly(A). Energetics of the binding suggested that 9-O-N-aryl/arylalkyl amino carbonyl methyl berberines bound very weakly to ds poly(A). The binding of 9-O-ω-amino alkyl ether analogs was entropy dominated with a smaller but favorable enthalpic contribution to the Gibbs energy. Increasing the temperature resulted in weaker binding; the enthalpic contribution increased and the entropic contribution decreased. A small negative heat capacity change with significant enthalpy-entropy compensation established the involvement of multiple weak noncovalent interactions in the binding process.
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Affiliation(s)
- Anirban Basu
- Biophysical Chemistry Laboratory, CSIR-Indian Institute of Chemical Biology, Kolkata, India
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Kundu TK, Jaisankar P, Roy S. International symposium on challenges in chemical biology: toward the formation of Chemical Biology Society of India. ACS Chem Biol 2013; 8:658-61. [PMID: 23560637 DOI: 10.1021/cb4001876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Tapas K Kundu
- Transcription and Disease Laboratory, Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India.
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Bhowmik A, Das N, Pal U, Mandal M, Bhattacharya S, Sarkar M, Jaisankar P, Maiti NC, Ghosh MK. 2,2'-diphenyl-3,3'-diindolylmethane: a potent compound induces apoptosis in breast cancer cells by inhibiting EGFR pathway. PLoS One 2013; 8:e59798. [PMID: 23555785 PMCID: PMC3610887 DOI: 10.1371/journal.pone.0059798] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Accepted: 02/19/2013] [Indexed: 11/18/2022] Open
Abstract
Despite recent advances in medicine, 30-40% of patients with breast cancer show recurrence underscoring the need for improved effective therapy. In this study, by in vitro screening we have selected a novel synthetic indole derivative 2,2'-diphenyl-3,3'-diindolylmethane (DPDIM) as a potential anti- breast cancer agent. DPDIM induces apoptosis both in vitro in breast cancer cells MCF7, MDA-MB 231 and MDA-MB 468 and in vivo in 7,12-dimethylbenz[α]anthracene (DMBA) induced Sprague-Dawley (SD) rat mammary tumor. Our in vitro studies show that DPDIM exerts apoptotic effect by negatively regulating the activity of EGFR and its downstream molecules like STAT3, AKT and ERK1/2 which are involved in the proliferation and survival of these cancer cells. In silico predictions also suggest that DPDIM may bind to EGFR at its ATP binding site. DPDIM furthermore inhibits EGF induced increased cell viability. We have also shown decreased expression of pro-survival factor Bcl-XL as well as increase in the level of pro-apoptotic proteins like Bax, Bad, Bim in DPDIM treated cells in vitro and in vivo. Our results further indicate that the DPDIM induced apoptosis is mediated through mitochondrial apoptotic pathway involving the caspase-cascade. To the best of our knowledge this is the first report of DPDIM for its anticancer activity. Altogether this report suggests that DPDIM could be an effective therapeutic agent for breast cancer.
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Affiliation(s)
- Arijit Bhowmik
- Signal Transduction in Cancer and Stem Cells laboratory, Division of Cancer Biology and Inflammatory Disorder, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), Kolkata, West Bengal, India
| | - Nilanjana Das
- Signal Transduction in Cancer and Stem Cells laboratory, Division of Cancer Biology and Inflammatory Disorder, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), Kolkata, West Bengal, India
| | - Uttam Pal
- Structural Biology and Bioinformatics Division, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), Kolkata, West Bengal, India
| | - Madhumita Mandal
- Chemistry Division, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), Kolkata, West Bengal, India
| | - Seemana Bhattacharya
- Signal Transduction in Cancer and Stem Cells laboratory, Division of Cancer Biology and Inflammatory Disorder, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), Kolkata, West Bengal, India
| | - Moumita Sarkar
- Signal Transduction in Cancer and Stem Cells laboratory, Division of Cancer Biology and Inflammatory Disorder, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), Kolkata, West Bengal, India
| | - Parasuraman Jaisankar
- Chemistry Division, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), Kolkata, West Bengal, India
| | - Nakul C. Maiti
- Structural Biology and Bioinformatics Division, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), Kolkata, West Bengal, India
| | - Mrinal K. Ghosh
- Signal Transduction in Cancer and Stem Cells laboratory, Division of Cancer Biology and Inflammatory Disorder, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology (IICB), Kolkata, West Bengal, India
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Basu A, Jaisankar P, Suresh Kumar G. Binding of the 9-O-N-aryl/arylalkyl amino carbonyl methyl substituted berberine analogs to tRNA(phe.). PLoS One 2013; 8:e58279. [PMID: 23526972 PMCID: PMC3602459 DOI: 10.1371/journal.pone.0058279] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Accepted: 02/01/2013] [Indexed: 12/19/2022] Open
Abstract
Background Three new analogs of berberine with aryl/arylalkyl amino carbonyl methyl substituent at the 9-position of the isoquinoline chromophore along with berberrubine were studied for their binding to tRNAphe by wide variety of biophysical techniques like spectrophotometry, spectrofluorimetry, circular dichroism, thermal melting, viscosity and isothermal titration calorimetry. Methodology/Principal Findings Scatchard binding isotherms revealed that the cooperative binding mode of berberine was propagated in the analogs also. Thermal melting studies showed that all the 9-O-N-aryl/arylalkyl amino carbonyl methyl substituted berberine analogs stabilized the tRNAphe more in comparison to berberine. Circular dichroism studies showed that these analogs perturbed the structure of tRNAphe more in comparison to berberine. Ferrocyanide quenching studies and viscosity results proved the intercalative binding mode of these analogs into the helical organization of tRNAphe. The binding was entropy driven for the analogs in sharp contrast to the enthalpy driven binding of berberine. The introduction of the aryl/arylalkyl amino carbonyl methyl substituent at the 9-position thus switched the enthalpy driven binding of berberine to entropy dominated binding. Salt and temperature dependent calorimetric studies established the involvement of multiple weak noncovalent interactions in the binding process. Conclusions/Significance The results showed that 9-O-N-aryl/arylalkyl amino carbonyl methyl substituted berberine analogs exhibited almost ten folds higher binding affinity to tRNAphe compared to berberine whereas the binding of berberrubine was dramatically reduced by about twenty fold in comparison to berberine. The spacer length of the substitution at the 9-position of the isoquinoline chromophore appears to be critical in modulating the binding affinities towards tRNAphe.
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Affiliation(s)
- Anirban Basu
- Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- Biophysical Chemistry Laboratory, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | | | - Gopinatha Suresh Kumar
- Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- Biophysical Chemistry Laboratory, CSIR-Indian Institute of Chemical Biology, Kolkata, India
- * E-mail:
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Roy S, Mandal M, Pal C, Giri P, Kumar GS, Mukherjee J, Jaisankar P. Studies on aqueous solubility of 3,3′-diindolylmethane derivatives using cyclodextrin inclusion complexes. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.09.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Chowdhury S, Mukherjee T, Mukhopadhyay R, Mukherjee B, Sengupta S, Chattopadhyay S, Jaisankar P, Roy S, Majumder HK. The lignan niranthin poisons Leishmania donovani topoisomerase IB and favours a Th1 immune response in mice. EMBO Mol Med 2013; 4:1126-43. [PMID: 23027614 PMCID: PMC3491841 DOI: 10.1002/emmm.201201316] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Niranthin, a lignan isolated from the aerial parts of the plant Phyllanthus amarus, exhibits a wide spectrum of pharmacological activities. In the present study, we have shown for the first time that niranthin is a potent anti-leishmanial agent. The compound induces topoisomerase I-mediated DNA–protein adduct formation inside Leishmania cells and triggers apoptosis by activation of cellular nucleases. We also show that niranthin inhibits the relaxation activity of heterodimeric type IB topoisomerase of L. donovani and acts as a non-competitive inhibitor interacting with both subunits of the enzyme. Niranthin interacts with DNA–protein binary complexes and thus stabilizes the ‘cleavable complex’ formation and subsequently inhibits the religation of cleaved strand. The compound inhibits the proliferation of Leishmania amastigotes in infected cultured murine macrophages with limited cytotoxicity to the host cells and is effective against antimony-resistant Leishmania parasites by modulating upregulated P-glycoprotein on host macrophages. Importantly, besides its in vitro efficacy, niranthin treatment leads to a switch from a Th2- to a Th1-type immune response in infected BALB/c mice. The immune response causes production of nitric oxide, which results in almost complete clearance of the liver and splenic parasite burden after intraperitoneal or intramuscular administration of the drug. These findings can be exploited to develop niranthin as a new drug candidate against drug-resistant leishmaniasis.
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Affiliation(s)
- Sayan Chowdhury
- Molecular Parasitology Laboratory, Indian Institute of Chemical Biology, Jadavpur, Kolkata, India
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Gorain B, Choudhury H, Biswas E, Barik A, Jaisankar P, Pal TK. A novel approach for nanoemulsion components screening and nanoemulsion assay of olmesartan medoxomil through a developed and validated HPLC method. RSC Adv 2013. [DOI: 10.1039/c3ra41452c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Mahato SK, Vinayagam J, Dey S, Timiri AK, Chatterjee S, Jaisankar P. InCl3 Catalysed One-Pot Synthesis of Substituted Pyrroles and 2-Pyrones. Aust J Chem 2013. [DOI: 10.1071/ch12359] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
An efficient InCl3 catalysed one-pot strategy has been developed for the synthesis of tetra-substituted pyrroles and tri-substituted 2-pyrones in very good yields. Tetra-substituted pyrroles were prepared from 1,4-enediones and β-dicarbonyls employing NH4OAc as a nitrogen source, through a combination of Michael addition and Paal–Knorr methods. Tri-substituted 2-pyrones were synthesised from 1,4-ynediones and appropriate β-dicarbonyls using a sequential Michael addition and 6-exo-trig cyclisation.
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Nandi D, Besra SE, Vedasiromoni JR, Giri VS, Rana P, Jaisankar P. Anti-leukemic activity of Wattakaka volubilis leaf extract against human myeloid leukemia cell lines. J Ethnopharmacol 2012; 144:466-473. [PMID: 23069944 DOI: 10.1016/j.jep.2012.08.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Revised: 07/23/2012] [Accepted: 08/16/2012] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Wattakaka volubilis has been traditionally used in Ayurvedic medicine in India for treatment of several ailments such as bronchial asthma, inflammations, tumors, piles, leucoderma, application to boils, rat bite etc. AIM OF THE STUDY The present study was designed to investigate anti-leukemic activity of the crude aqueous methanolic extract and to identify active compounds from the leaves of Wattakaka volubilis. MATERIALS AND METHODS The leaves of Wattakaka volubilis were extracted with aqueous methanol. Liquid-liquid fractionation of the crude methanolic extract with different organic solvents was done and the fractions were screened for in vitro anti-leukemic activity using different leukemic cell lines. The active fractions were then subjected to chromatographic separation for isolation of bioactive compounds. Structure of isolated compound was elucidated by spectroscopic methods. The in vitro anti-leukemic activities of different extracts of the leaves and isolated compound WVP were studied in U-937, HL-60 and K-562 cell-lines by using cell count, MTT [(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide] and DNA laddering assays, flow-cytometric and confocal microscopic techniques. RESULTS Kaempferol-3-O-[α-l-rhamnopyranosyl-(1→4)-O-α-l-rhamnopyranosyl-(1→6)-O]-β-d-glucopyranoside (WVP) was isolated from crude leaves extract of Wattakaka volubilis. Both the n-butanolic extract (WVB) of Wattakaka volubilis and its isolate WVP were found to be responsible for in vitro anti-leukemic activity. The IC(50) values of WVB were found be 120, 100 and 50(μg/ml) in U937, K562, and HL-60 cell lines, respectively. Whereas, the pure isolate WVP exhibited anti-leukemic activity with IC(50) values of 13.5, 10.8, and 13.2(μg/ml) in U937, K562, and HL-60 cell lines, respectively. The flow-cytometric analysis confirms that the cell cycle arrest occurs at G1 phase in case of U937 and K562 cell lines and G2/M phase in case of HL60 cell lines. Similarly both confocal microsocopic analysis and DNA laddering assay confirm the apoptosis and cell cycle arrests of leukemic cells. CONCLUSION The overall results provide evidence for the ethnopharmacological relevance for use of the plant Wattakaka volubilis in developing novel agents for the treatment of leukemia.
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Affiliation(s)
- Debkumar Nandi
- Department of Chemistry, CSIR-Indian Institute of Chemical Biology, Jadavpur, Kolkata-700 032, India
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Pradhan P, Nandi D, Pradhan S, Jaisankar P, Giri V. An Unusual Diastereoselective Pictet–Spengler Reaction: Synthesis of Novel Tetrahydro-β-Carboline Glycosides. Synlett 2012. [DOI: 10.1055/s-0032-1317632] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
| | - Debkumar Nandi
- Chemistry Department, Indian Institute of Chemical Biology
| | | | | | - V. Giri
- Chemistry Department, Indian Institute of Chemical Biology
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Jaisankar P, Mandal M, Chatterjee S. Woollins Reagent: A Chemoselective Reducing Agent for 1,4-Enediones and 1,4-Ynediones to Saturated 1,4-Diones. Synlett 2012. [DOI: 10.1055/s-0032-1317343] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Balwani S, Chaudhuri R, Nandi D, Jaisankar P, Agrawal A, Ghosh B. Regulation of NF-κB activation through a novel PI-3K-independent and PKA/Akt-dependent pathway in human umbilical vein endothelial cells. PLoS One 2012; 7:e46528. [PMID: 23071583 PMCID: PMC3465347 DOI: 10.1371/journal.pone.0046528] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Accepted: 09/04/2012] [Indexed: 01/04/2023] Open
Abstract
The transcription factor NF-κB regulates numerous inflammatory diseases, and proteins involved in the NF-κB-activating signaling pathway are important therapeutic targets. In human umbilical vein endothelial cells (HUVECs), TNF-α-induced IκBα degradation and p65/RelA phosphorylation regulate NF-κB activation. These are mediated by IKKs (IκB kinases) viz. IKKα, β and γ which receive activating signals from upstream kinases such as Akt. Akt is known to be positively regulated by PI-3K (phosphoinositide-3-kinase) and differentially regulated via Protein kinase A (PKA) in various cell types. However, the involvement of PKA/Akt cross talk in regulating NF-κB in HUVECs has not been explored yet. Here, we examined the involvement of PKA/Akt cross-talk in HUVECs using a novel compound, 2-methyl-pyran-4-one-3-O-β-D-2',3',4',6'-tetra-O-acetyl glucopyranoside (MPTAG). We observed that MPTAG does not directly inhibit IKK-β but prevents TNF-α-induced activation of IKK-β by blocking its association with Akt and thereby inhibits NF-κB activation. Interestingly, our results also revealed that inhibitory effect of MPTAG on Akt and NF-κB activation was unaffected by wortmannin, and was completely abolished by H-89 treatment in these cells. Thus, MPTAG-mediated inhibition of TNF-α-induced Akt activation was independent of PI-3K and dependent on PKA. Most importantly, MPTAG restores the otherwise repressed activity of PKA and inhibits the TNF-α-induced Akt phosphorylation at both Thr308 and Ser473 residues. Thus, we demonstrate for the first time the involvement of PKA/Akt cross talk in NF-κB activation in HUVECs. Also, MPTAG could be useful as a lead molecule for developing potent therapeutic molecules for diseases where NF-κB activation plays a key role.
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Affiliation(s)
- Sakshi Balwani
- Molecular Immunogenetics Laboratory, CSIR-Institute of Genomics and Integrative Biology, Delhi, India
| | - Rituparna Chaudhuri
- Molecular Immunogenetics Laboratory, CSIR-Institute of Genomics and Integrative Biology, Delhi, India
| | - Debkumar Nandi
- Department of Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, Jadavpur, Kolkata, India
| | - Parasuraman Jaisankar
- Department of Medicinal Chemistry, CSIR-Indian Institute of Chemical Biology, Jadavpur, Kolkata, India
| | - Anurag Agrawal
- Molecular Immunogenetics Laboratory, CSIR-Institute of Genomics and Integrative Biology, Delhi, India
| | - Balaram Ghosh
- Molecular Immunogenetics Laboratory, CSIR-Institute of Genomics and Integrative Biology, Delhi, India
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Arumugam M, Jaisankar P, Mukherjee J. Synthesis, spectroscopy and antimicrobial activity of iron complexes of some smoke flavour compounds. Nat Prod Res 2012; 26:1942-4. [DOI: 10.1080/14786419.2011.622277] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Acharya C, Dey S, Jaisankar P. Indium trichloride catalyzed three component one-pot route to 1-hydroxymethyl-3-aminomethyl indoles. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.08.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kumar D, Mandal M, Roy R, Jaisankar P, Das P. 904 Biological Mechanism of Action of Novel −3−(2,5-diphenylfuran-3-yl)−4-methoxy-1H-indole in Human Leukemic Cell Lines. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71535-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Mukherjee T, Chowdhury S, Kumar A, Majumder HK, Jaisankar P, Mukhopadhyay S. Saracoside: A New Lignan Glycoside from Saraca indica, a Potential Inhibitor of DNA Topoisomerase IB. Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200700619] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Chemical investigation of the stem bark of Saraca indica has resulted in the isolation of a new lignan glycoside, saracoside, along with four known lignan glycosides lyoniside, icariside E3, (+)5′methoxyisolarciresinol-9′- O-β-D-glucopyranoside and nudiposide, and a phenolic glucopyranoside, 3,4,5– trimethoxyphenyl-β-D-glucopyranoside, which has been isolated for the first time from this species. The isolated lignan glycosides exhibit potent DNA topoisomerase IB inhibitory activity.
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Affiliation(s)
- Tulika Mukherjee
- Chemistry Division, Indian Institute of Chemical Biology, Jadavpur, Kolkata -700032, India
| | - Sayan Chowdhury
- Molecular Parasitology Laboratory, Indian Institute of Chemical Biology, Jadavpur, Kolkata -700032, India
| | - Ashish Kumar
- Chemistry Division, Indian Institute of Chemical Biology, Jadavpur, Kolkata -700032, India
| | - Hemanta K Majumder
- Molecular Parasitology Laboratory, Indian Institute of Chemical Biology, Jadavpur, Kolkata -700032, India
| | - Parasuraman Jaisankar
- Chemistry Division, Indian Institute of Chemical Biology, Jadavpur, Kolkata -700032, India
| | - Sibabrata Mukhopadhyay
- Chemistry Division, Indian Institute of Chemical Biology, Jadavpur, Kolkata -700032, India
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