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Thangarasu AK, Sambyal S, Kumar HMS, Lankalapalli RS. Design, synthesis, and preliminary immunopotentiating activity of new analogues of nojirimycin. Carbohydr Res 2021; 511:108479. [PMID: 34798489 DOI: 10.1016/j.carres.2021.108479] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 11/11/2021] [Accepted: 11/11/2021] [Indexed: 11/16/2022]
Abstract
Three new classes of nojirimycin analogues viz. N-alkyl with C1-substituent (4-phenylbutyl), N-substituted 1-deoxynojirimycin and its congener δ-lactam, and a 4-phenylbutyl-β-C-glycoside were designed and synthesized for immunological studies. The resulting diverse compound library exhibited proliferation of B Cells and T cells induced by LPS and Con A, respectively. The majority of the analogues augmented the secretion of IL-12 in dendritic cells and TNF-α secretion in murine peritoneal macrophages compared to LPS (10 μg/ml). A deoxynojirimycin-triazole conjugate of phytosphingosine analogue was superior in the responses mentioned above and exhibited nitric oxide response equal to LPS. In comparison to findings on its congeners with immunosuppressive action, early immunological tests show that the novel nojirimycin analogues have immunopotentiating effect. Hence, nojirimycin analogues offer tremendous potential in tuning the immunomodulatory activity of iminosugars by subtle to substantial structural variations.
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Affiliation(s)
- Arun K Thangarasu
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695019, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Shainy Sambyal
- Vaccine Immunology Laboratory, Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Halmuthur Mahabalarao Sampath Kumar
- Vaccine Immunology Laboratory, Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Ravi S Lankalapalli
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, 695019, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Bonam SR, Rénia L, Tadepalli G, Bayry J, Kumar HMS. Plasmodium falciparum Malaria Vaccines and Vaccine Adjuvants. Vaccines (Basel) 2021; 9:1072. [PMID: 34696180 PMCID: PMC8541031 DOI: 10.3390/vaccines9101072] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/10/2021] [Accepted: 09/22/2021] [Indexed: 12/02/2022] Open
Abstract
Malaria-a parasite vector-borne disease-is a global health problem, and Plasmodium falciparum has proven to be the deadliest among Plasmodium spp., which causes malaria in humans. Symptoms of the disease range from mild fever and shivering to hemolytic anemia and neurological dysfunctions. The spread of drug resistance and the absence of effective vaccines has made malaria disease an ever-emerging problem. Although progress has been made in understanding the host response to the parasite, various aspects of its biology in its mammalian host are still unclear. In this context, there is a pressing demand for the development of effective preventive and therapeutic strategies, including new drugs and novel adjuvanted vaccines that elicit protective immunity. The present article provides an overview of the current knowledge of anti-malarial immunity against P. falciparum and different options of vaccine candidates in development. A special emphasis has been made on the mechanism of action of clinically used vaccine adjuvants.
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Affiliation(s)
- Srinivasa Reddy Bonam
- Institut National de la Santé et de la Recherche Médicale, Centre de Recherche des Cordeliers, Equipe-Immunopathologie et Immunointervention Thérapeutique, Sorbonne Université, Université de Paris, F-75006 Paris, France;
| | - Laurent Rénia
- A*STAR Infectious Diseases Labs, 8A Biomedical Grove, Singapore 138648, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
- School of Biological Sciences, Nanyang Technological University, Singapore 308232, Singapore
| | - Ganesh Tadepalli
- Vaccine Immunology Laboratory, Organic Synthesis and Process Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India;
| | - Jagadeesh Bayry
- Institut National de la Santé et de la Recherche Médicale, Centre de Recherche des Cordeliers, Equipe-Immunopathologie et Immunointervention Thérapeutique, Sorbonne Université, Université de Paris, F-75006 Paris, France;
- Biological Sciences & Engineering, Indian Institute of Technology Palakkad, Palakkad 678623, India
| | - Halmuthur Mahabalarao Sampath Kumar
- Vaccine Immunology Laboratory, Organic Synthesis and Process Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India;
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Purification, Structural Characterization and Immunomodulatory Effects of Polysaccharides from Amomumvillosum Lour. on RAW 264.7 Macrophages. Molecules 2021; 26:molecules26092672. [PMID: 34063301 PMCID: PMC8125432 DOI: 10.3390/molecules26092672] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/26/2021] [Accepted: 04/29/2021] [Indexed: 12/14/2022] Open
Abstract
Amomum Villosum Lour. (A. villosum) is a folk medicine that has been used for more than 1300 years. However, study of the polysaccharides of A. villosum is seriously neglected. The objectives of this study are to explore the structural characteristics of polysaccharides from A. villosum (AVPs) and their effects on immune cells. In this study, the acidic polysaccharides (AVPG-1 and AVPG-2) were isolated from AVPs and purified via anion exchange and gel filtration chromatography. The structural characteristics of the polysaccharides were characterized by methylation, HPSEC-MALLS-RID, HPLC, FT-IR, SEM, GC-MS and NMR techniques. AVPG-1 with a molecular weight of 514 kDa had the backbone of → 4)-α-d-Glcp-(1 → 3,4)-β-d-Glcp-(1 → 4)-α-d-Glcp-(1 →. AVPG-2 with a higher molecular weight (14800 kDa) comprised a backbone of → 4)-α-d-Glcp-(1 → 3,6)-β-d-Galp-(1 → 4)-α-d-Glcp-(1 →. RAW 264.7 cells were used to investigate the potential effect of AVPG-1 and AVPG-2 on macrophages, and lipopolysaccharide (LPS) was used as a positive control. The results from bioassays showed that AVPG-2 exhibited stronger immunomodulatory activity than AVPG-1. AVPG-2 significantly induced nitric oxide (NO) production as well as the release of interleukin (IL)-6 and tumor necrosis factor alpha (TNF-α), and upregulated phagocytic capacities of RAW 264.7 cells. Real-time PCR analysis revealed that AVPG-2 was able to turn the polarization of macrophages to the M1 direction. These results suggested that AVPs could be explored as potential immunomodulatory agents of the functional foods or complementary medicine.
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Bonam SR, Bhunia D, Muller S, Nerella SG, Alvala M, Halmuthur Mahabalarao SK. Novel trisaccharide based phospholipids as immunomodulators. Int Immunopharmacol 2019; 74:105684. [PMID: 31200340 DOI: 10.1016/j.intimp.2019.105684] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/30/2019] [Accepted: 06/04/2019] [Indexed: 12/19/2022]
Abstract
A focused library of novel mannosylated glycophospholipids was synthesized employing imidate coupling and H-phosphate phosphorylation methods. All novel glycophospholipids were evaluated for their receptor interactions by molecular docking studies. Docking studies revealed dendritic cell-specific intercellular adhesion molecule-3-grabbing non-integrin (DC-SIGN) specific interaction of the glycophospholipid ligand P4 acts, which was further confirmed by in vitro DC-SIGN expression on monocyte-derived dendritic cells (MoDCs). Further, in vitro and in vivo immunomodulatory activity among the six compounds (P1-P6) examined, compound P4 displayed good immunopotentiation and adjuvant properties as indicated by the induced cytokine expression and enhanced ovalbumin (OVA) specific antibody (IgG) titers. Phosphatidylinositol mannosides (PIMs) analogues in the present study enforced the immunomodulatory properties, truncating parent PIMs or tailor-made of PIMs may bring the novel efficacious molecules, which will be useful in vaccine preparation against different diseases.
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Affiliation(s)
- Srinivasa Reddy Bonam
- Vaccine Immunology Laboratory, Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad, 500007, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-IICT Campus, Hyderabad, 500007, India; UMR 7242 CNRS- Neuroimmunology & Peptide Therapy Team, University of Strasbourg, Biotechnology and cell signaling, Illkirch, France/Laboratory of excellence Medalis, Institut de science et d'ingénierie supramoléculaire (ISIS), 67000, Strasbourg, France
| | - Debabrata Bhunia
- Vaccine Immunology Laboratory, Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad, 500007, India
| | - Sylviane Muller
- UMR 7242 CNRS- Neuroimmunology & Peptide Therapy Team, University of Strasbourg, Biotechnology and cell signaling, Illkirch, France/Laboratory of excellence Medalis, Institut de science et d'ingénierie supramoléculaire (ISIS), 67000, Strasbourg, France; University of Strasbourg Institute for Advanced Study (USIAS), 67000 Strasbourg, France
| | - Sridhar Goud Nerella
- Molecular Modeling Facility, Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500037, India
| | - Mallika Alvala
- Molecular Modeling Facility, Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, 500037, India
| | - Sampath Kumar Halmuthur Mahabalarao
- Vaccine Immunology Laboratory, Natural Products Chemistry Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad, 500007, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-IICT Campus, Hyderabad, 500007, India.
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Reddy Bonam S, Naidu Gorantla J, Thangarasu AK, Lankalapalli RS, Sampath Kumar HM. Polyhydroxy-N-alkyl-2-pyrrolidinones as a new class of glycolipid analogues with immune modulation potential. J Carbohydr Chem 2018. [DOI: 10.1080/07328303.2017.1413193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Srinivasa Reddy Bonam
- Vaccine Immunology Laboratory, Natural Products Chemistry Division, Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology, Hyderabad, India
- CNRS UPR 3572, Laboratory of Immunopathology and Therapeutic Chemistry/Laboratory of Excellence MEDALIS, Institut de Biologie Moléculaire et Cellulaire, University of Strasbourg, Strasbourg, France
| | - Jaggaiah Naidu Gorantla
- Organic Chemistry Section, Chemical Sciences and Technology Division, Academy of Scientific and Innovative Research (AcSIR), CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, Kerala, India
| | - Arun Kumar Thangarasu
- Organic Chemistry Section, Chemical Sciences and Technology Division, Academy of Scientific and Innovative Research (AcSIR), CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, Kerala, India
| | - Ravi Shankar Lankalapalli
- Organic Chemistry Section, Chemical Sciences and Technology Division, Academy of Scientific and Innovative Research (AcSIR), CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, Kerala, India
| | - Halmuthur Mahabalarao Sampath Kumar
- Vaccine Immunology Laboratory, Natural Products Chemistry Division, Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Chemical Technology, Hyderabad, India
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Chirke SS, Krishna JS, Rathod BB, Bonam SR, Khedkar VM, Rao BV, Sampath Kumar HM, Shetty PR. Synthesis of Triazole Derivatives of 9-Ethyl-9H-carbazole and Dibenzo[b,d]furan and Evaluation of Their Antimycobacterial and Immunomodulatory Activity. ChemistrySelect 2017. [DOI: 10.1002/slct.201701377] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sahadev S. Chirke
- Academy of Scientific and Innovative Research (AcSIR); New Delhi India
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology, Tarnaka; Hyderabad- 500 007 India
| | - Jattuboyina Siva Krishna
- Academy of Scientific and Innovative Research (AcSIR); New Delhi India
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology, Tarnaka; Hyderabad- 500 007 India
| | - Balaji B. Rathod
- Academy of Scientific and Innovative Research (AcSIR); New Delhi India
- Medicinal Chemistry & Biotechnology Division; CSIR-Indian Institute of Chemical Technology, Tarnaka; Hyderabad- 500 007 India
| | - Srinivasa Reddy Bonam
- Academy of Scientific and Innovative Research (AcSIR); New Delhi India
- Vaccine Immunology lab, Natural Product Chemistry Division; CSIR-Indian Institute of Chemical Technology, Tarnaka; Hyderabad- 500 007 India
| | - Vijay M. Khedkar
- Shri Vile Parle Kelavani Mandal's Institute of Pharmacy; Mumbai Agra Road, Dhule Maharashtra- 424 001 India
| | - Batchu Venkateswara Rao
- Academy of Scientific and Innovative Research (AcSIR); New Delhi India
- Organic and Biomolecular Chemistry Division; CSIR-Indian Institute of Chemical Technology, Tarnaka; Hyderabad- 500 007 India
| | - Halmuthur Mahabalarao Sampath Kumar
- Academy of Scientific and Innovative Research (AcSIR); New Delhi India
- Vaccine Immunology lab, Natural Product Chemistry Division; CSIR-Indian Institute of Chemical Technology, Tarnaka; Hyderabad- 500 007 India
| | - Prakasham Reddy Shetty
- Academy of Scientific and Innovative Research (AcSIR); New Delhi India
- Medicinal Chemistry & Biotechnology Division; CSIR-Indian Institute of Chemical Technology, Tarnaka; Hyderabad- 500 007 India
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