1
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Anand S, Mardhekar S, Bhoge PR, Mishra SK, Kikkeri R. Molecular recognition and proteoglycan mimic arrangement: modulating cisplatin toxicity. Chem Commun (Camb) 2024; 60:4495-4498. [PMID: 38567462 DOI: 10.1039/d4cc00464g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
We have demonstrated that cisplatin (CP), an anticancer drug, showed a preference for binding the sulfated-L-iduronic acid (S-L-IdoA) unit over the sulfated-D-glucuronic acid unit of heparan sulfate. The multivalency of S-L-IdoA, such as in the proteoglycan mimic, resulted in distinct modes of cell-surface engineering in normal and cancer cells, with these disparities having a significant impact on CP-mediated toxicity.
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Affiliation(s)
- Saurabh Anand
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 4110008, India.
| | - Sandhya Mardhekar
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 4110008, India.
| | - Preeti Ravindra Bhoge
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 4110008, India.
| | - Sandeep Kumar Mishra
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 4110008, India.
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 4110008, India.
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2
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Alshanski I, Toraskar S, Gordon-Levitan D, Massetti M, Jain P, Vaccaro L, Kikkeri R, Hurevich M, Yitzchaik S. Surface-Controlled Sialoside-Based Biosensing of Viral and Bacterial Neuraminidases. Langmuir 2024; 40:7471-7478. [PMID: 38554266 PMCID: PMC11008233 DOI: 10.1021/acs.langmuir.3c03943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/17/2024] [Accepted: 03/18/2024] [Indexed: 04/01/2024]
Abstract
Neuraminidases (NA) are sialic acid-cleaving enzymes that are used by both bacteria and viruses. These enzymes have sialoside structure-related binding and cleaving preferences. Differentiating between these enzymes requires using a large array of hard-to-access sialosides. In this work, we used electrochemical impedimetric biosensing to differentiate among several pathogene-related NAs. We used a limited set of sialosides and tailored the surface properties. Various sialosides were grafted on two different surfaces with unique properties. Electrografting on glassy carbon electrodes provided low-density sialoside-functionalized surfaces with a hydrophobic submonolayer. A two-step assembly on gold electrodes provided a denser sialoside layer on a negatively charged submonolayer. The synthesis of each sialoside required dozens of laborious steps. Utilizing the unique protein-electrode interaction modes resulted in richer biodata without increasing the synthetic load. These principles allowed for profiling NAs and determining the efficacy of various antiviral inhibitors.
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Affiliation(s)
- Israel Alshanski
- The
Institute of Chemistry and Center of Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Suraj Toraskar
- Indian
Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
| | - Daniel Gordon-Levitan
- The
Institute of Chemistry and Center of Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Marco Massetti
- The
Institute of Chemistry and Center of Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
- Laboratory
of Green Synthetic Organic Chemistry, Dipartimento di Chimica, Biologiae Biotecnologie Università di Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Prashant Jain
- Indian
Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
| | - Luigi Vaccaro
- Laboratory
of Green Synthetic Organic Chemistry, Dipartimento di Chimica, Biologiae Biotecnologie Università di Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy
| | - Raghavendra Kikkeri
- Indian
Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
| | - Mattan Hurevich
- The
Institute of Chemistry and Center of Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Shlomo Yitzchaik
- The
Institute of Chemistry and Center of Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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3
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Bhoge PR, Raigawali R, Mardhekar S, Anand S, Kikkeri R. Synergestic interplay of uronic acid and sulfation composition of heparan sulfate on molecular recognition to activity. Carbohydr Res 2023; 532:108919. [PMID: 37557021 DOI: 10.1016/j.carres.2023.108919] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 08/02/2023] [Accepted: 08/02/2023] [Indexed: 08/11/2023]
Abstract
Heparan sulfate (HS) is ubiquitous polysaccharide on the surface of all mammalian cells and extracellular matrices. The incredible structural complexity of HS arises from its sulfation patterns and disaccharide compositions, which orchestrate a wide range of biological activities. Researchers have developed elegant synthetic methods to obtain well-defined HS oligosaccharides to understand the structure-activity relationship. These studies revealed that specific sulfation codes and uronic acid variants could synergistically modulate HS-protein interactions (HSPI). Additionally, the conformational flexibility of l-Iduronic acid, a uronic acid unit has emerged as a critical factor in fine-tuning the microenvironment to modulate HSPI. This review delineates how uronic acid composition in HS modulates protein binding affinity, selectivity, and biological activity. Finally, the significance of sulfated homo-oligo uronic acid as heparin mimics in drug development is also discussed.
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Affiliation(s)
- Preeti Ravindra Bhoge
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, 4110008, India
| | - Rakesh Raigawali
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, 4110008, India
| | - Sandhya Mardhekar
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, 4110008, India
| | - Saurabh Anand
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, 4110008, India
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, 4110008, India.
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4
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Ravindra Bhoge P, Chandra A, Kikkeri R. The Impact of Nanomaterial Morphology on Modulation of Carbohydrate-Protein Interactions. ChemMedChem 2023; 18:e202300262. [PMID: 37403554 DOI: 10.1002/cmdc.202300262] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/30/2023] [Accepted: 06/30/2023] [Indexed: 07/06/2023]
Abstract
Carbohydrate-protein interactions (CPIs) play a crucial role in the regulation of various physiological and pathological processes within living systems. However, these interactions are typically weak, prompting the development of multivalent probes, including nanoparticles and polymer scaffolds, to enhance the avidity of CPIs. Additionally, the morphologies of glyco-nanostructures can significantly impact protein binding, bacterial adhesion, cellular internalization, and immune responses. In this review, we have examined the advancements in glyco-nanostructures of different shapes that modulate CPIs. We specifically emphasize glyco-nanostructures constructed from small-molecule amphiphilic carbohydrates, block copolymers, metal-based nanoparticles, and carbon-based materials, highlighting their potential applications in glycobiology.
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Affiliation(s)
- Preeti Ravindra Bhoge
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Ankita Chandra
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Raghavendra Kikkeri
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
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5
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Alshanski I, Toraskar S, Shitrit A, Gordon-Levitan D, Jain P, Kikkeri R, Hurevich M, Yitzchaik S. Biocatalysis versus Molecular Recognition in Sialoside-Selective Neuraminidase Biosensing. ACS Chem Biol 2023; 18:605-614. [PMID: 36792550 PMCID: PMC10028605 DOI: 10.1021/acschembio.2c00913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Sialic acid recognition and hydrolysis are essential parts of cellular function and pathogen infectivity. Neuraminidases are enzymes that detach sialic acid from sialosides, and their inhibition is a prime target for viral infection treatment. The connectivity and type of sialic acid influence the recognition and hydrolysis activity of the many different neuraminidases. The common strategies to evaluate neuraminidase activity, recognition, and inhibition rely on extensive labeling and require a large amount of sialylated glycans. The above limitations make the effort of finding viral inhibitors extremely difficult. We used synthetic sialylated glycans and developed a label-free electrochemical method to show that sialoside structural features lead to selective neuraminidase biosensing. We compared Neu5Ac to Neu5Gc sialosides to evaluate the organism-dependent neuraminidase selectivity-sensitivity relationship. We demonstrated that the type of surface and the glycan monolayer density direct the response to either binding or enzymatic activity. We proved that while the hydrophobic glassy carbon surface increases the interaction with the enzyme hydrophobic interface, the negatively charged interface of the lipoic acid monolayer on gold repels the protein and enables biocatalysis. We showed that the sialoside monolayers can serve as tools to evaluate the inhibition of neuraminidases both by biocatalysis and molecular recognition.
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Affiliation(s)
- Israel Alshanski
- The Institute of Chemistry and Center of Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Suraj Toraskar
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
| | - Ariel Shitrit
- The Institute of Chemistry and Center of Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Daniel Gordon-Levitan
- The Institute of Chemistry and Center of Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Prashant Jain
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
| | - Mattan Hurevich
- The Institute of Chemistry and Center of Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Shlomo Yitzchaik
- The Institute of Chemistry and Center of Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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6
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Mardhekar S, Subramani B, Samudra P, Srikanth P, Mahida V, Ravindra Bhoge P, Toraskar S, Abraham NM, Kikkeri R. Sulfation of Heparan and Chondroitin Sulfate Ligands Enables Cell-Specific Homing of Nanoprobes. Chemistry 2023; 29:e202202622. [PMID: 36325647 DOI: 10.1002/chem.202202622] [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] [Received: 08/22/2022] [Revised: 11/02/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022]
Abstract
Demystifying the sulfation code of glycosaminoglycans (GAGs) to induce precise homing of nanoparticles in tumor cells or neurons influences the development of a potential drug- or gene-delivery system. However, GAGs, particularly heparan sulfate (HS) and chondroitin sulfate (CS), are structurally highly heterogeneous, and synthesizing well-defined HS/CS composed nanoparticles is challenging. Here, we decipher how specific sulfation patterns on HS and CS regulate receptor-mediated homing of nanoprobes in primary and secondary cells. We discovered that aggressive cancer cells such as MDA-MB-231 displayed a strong uptake of GAG-nanoprobes compared to mild or moderately aggressive cancer cells. However, there was no selectivity towards the GAG sequences, thus indicating the presence of more than one form of receptor-mediated uptake. However, U87 cells, olfactory bulb, and hippocampal primary neurons showed selective or preferential uptake of CS-E-coated nanoprobes compared to other GAG-nanoprobes. Furthermore, mechanistic studies revealed that the 4,6-O-disulfated-CS nanoprobe used the CD44 and caveolin-dependent endocytosis pathway for uptake. These results could lead to new opportunities to use GAG nanoprobes in nanomedicine.
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Affiliation(s)
- Sandhya Mardhekar
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Balamurugan Subramani
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Prasanna Samudra
- Laboratory of Neural Circuits and Behaviour (LNCB) Department of Biology, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Priyadharshini Srikanth
- Laboratory of Neural Circuits and Behaviour (LNCB) Department of Biology, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Virendrasinh Mahida
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Preeti Ravindra Bhoge
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Suraj Toraskar
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Nixon M Abraham
- Laboratory of Neural Circuits and Behaviour (LNCB) Department of Biology, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Raghavendra Kikkeri
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
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7
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Chandra A, Bhoge PR, K R R, Shanthamurthy CD, Kikkeri R. Fluorescent glyco-gold nanocluster induced EGFR mediated targeting of cancer cells. Chem Commun (Camb) 2023; 59:1213-1216. [PMID: 36629520 DOI: 10.1039/d2cc06227e] [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: 01/04/2023]
Abstract
A lot of attention has been focused on the functionalization of carbohydrate ligands on specific sizes and shapes of gold nanoparticles (AuNPs), where ultrasmall fluorescent AuNPs have not been well explored for direct imaging. Herein, we have engineered fluorescent gold nanoclusters with sulfated oligo-iduronic acid ligands (I34), which strongly bind to the HB-EGF receptor over FGF2, and regulate EGF receptor-mediated cancer cell homing in both two- and three-dimensional (2D and 3D) cell culture systems. These results offer a new practical and direct imaging tool for carbohydrate research.
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Affiliation(s)
- Ankita Chandra
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 4110008, India.
| | - Preeti Ravindra Bhoge
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 4110008, India.
| | - Remya K R
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 4110008, India.
| | - Chethan D Shanthamurthy
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 4110008, India.
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pashan, Pune 4110008, India.
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8
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Bhoge PR, Mardhekar S, Toraskar S, Subramani B, Kikkeri R. Pairing Nanoparticles Geometry with TLR Agonists to Modulate Immune Responses for Vaccine Development. ACS Appl Bio Mater 2022; 5:5675-5681. [PMID: 36375049 DOI: 10.1021/acsabm.2c00716] [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: 11/16/2022]
Abstract
Nanotechnology-based vaccine development necessitates understanding the crucial biophysical properties of nanostructures that alter immune responses. In this study, we demonstrate the synergistic effect of gold nanoparticles (AuNPs) shapes with toll-like receptor (TLR) agonists in immune modulation activity. Our results showed that CpG- and imidazoquinoline-conjugated rod-shaped AuNPs display relatively fast uptake by bone marrow-derived macrophage cells but exhibit poor immunogenic responses compared to their spherical and star-shaped AuNP counterparts. Surprisingly, star-shaped AuNPs exhibited intense pro-inflammatory cytokine secretion. Further mechanistic studies showed that star-shaped AuNPs were abundantly localized in the late endosome and lysosomal regions, whereas rod-shaped AuNPs were majorly sequestered in the mitochondrial region. These findings reveal that the shape of the nanostructures plays a pivotal role in driving the adjuvant molecules toward their receptors and altering immune responses.
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Affiliation(s)
- Preeti Ravindra Bhoge
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India
| | - Sandhya Mardhekar
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India
| | - Suraj Toraskar
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India
| | - Balamurugan Subramani
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India
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9
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Shitrit A, Mardhekar S, Alshanski I, Jain P, Raigawali R, Shanthamurthy CD, Kikkeri R, Yitzchaik S, Hurevich M. Profiling Heparan Sulfate-Heavy Metal Ions Interaction Using Electrochemical Techniques. Chemistry 2022; 28:e202202193. [PMID: 35904207 DOI: 10.1002/chem.202202193] [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] [Received: 07/13/2022] [Indexed: 01/07/2023]
Abstract
Heparan sulfate glycosaminoglycans provides extracellular matrix defense against heavy metals cytotoxicity. Identifying the precise glycan sequences that bind a particular heavy metal ion is a key for understanding those interactions. Here, electrochemical and surface characterization techniques were used to elucidate the relation between the glycans structural motifs, uronic acid stereochemistry, and sulfation regiochemistry to heavy metal ions binding. A divergent strategy was employed to access a small library of structurally well-defined tetrasaccharides analogs with different sulfation patterns and uronic acid compositions. These tetrasaccharides were electrochemically grafted onto glassy carbon electrodes and their response to heavy metal ions was monitored by electrochemical impedance spectroscopy. Key differences in the binding of Hg(II), Cd(II), and Pb(II) were associated with a combination of the uronic acid type and the sulfation pattern.
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Affiliation(s)
- Ariel Shitrit
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Safra Campus, Givat Ram, Jerusalem, 9190401, Israel
| | - Sandhya Mardhekar
- Indian Institute of Science Education and Research, Pune, 411008, India
| | - Israel Alshanski
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Safra Campus, Givat Ram, Jerusalem, 9190401, Israel
| | - Prashant Jain
- Indian Institute of Science Education and Research, Pune, 411008, India
| | - Rakesh Raigawali
- Indian Institute of Science Education and Research, Pune, 411008, India
| | | | | | - Shlomo Yitzchaik
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Safra Campus, Givat Ram, Jerusalem, 9190401, Israel
| | - Mattan Hurevich
- Institute of Chemistry and Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Safra Campus, Givat Ram, Jerusalem, 9190401, Israel
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10
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Shitrit A, Mardhekar S, Alshanski I, Jain P, Raigawali R, Shanthamurthy CD, Kikkeri R, Yitzchaik S, Hurevich M. Profiling Heparan Sulfate–Heavy Metal Ions Interaction Using Electrochemical Techniques. Chemistry 2022. [DOI: 10.1002/chem.202202805] [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: 11/06/2022]
Affiliation(s)
- Ariel Shitrit
- Institute of Chemistry and Center for Nanoscience and Nanotechnology The Hebrew University of Jerusalem Safra Campus, Givat Ram Jerusalem 9190401 Israel
| | - Sandhya Mardhekar
- Indian Institute of Science Education and Research Pune 411008 India
| | - Israel Alshanski
- Institute of Chemistry and Center for Nanoscience and Nanotechnology The Hebrew University of Jerusalem Safra Campus, Givat Ram Jerusalem 9190401 Israel
| | - Prashant Jain
- Indian Institute of Science Education and Research Pune 411008 India
| | - Rakesh Raigawali
- Indian Institute of Science Education and Research Pune 411008 India
| | | | | | - Shlomo Yitzchaik
- Institute of Chemistry and Center for Nanoscience and Nanotechnology The Hebrew University of Jerusalem Safra Campus, Givat Ram Jerusalem 9190401 Israel
| | - Mattan Hurevich
- Institute of Chemistry and Center for Nanoscience and Nanotechnology The Hebrew University of Jerusalem Safra Campus, Givat Ram Jerusalem 9190401 Israel
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11
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Shivatare S, Sanjiv K, Kikkeri R, Adamo R. Editorial: Glycoconjugates in vaccines and immunotherapeutics. Front Immunol 2022; 13:941474. [PMID: 35990665 PMCID: PMC9386521 DOI: 10.3389/fimmu.2022.941474] [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] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 07/22/2022] [Indexed: 11/20/2022] Open
Affiliation(s)
- Sachin Shivatare
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA, United States
| | - Kumar Sanjiv
- Karolinska Institutet, Science for Life Laboratory, Solna, Sweden
| | - Raghavendra Kikkeri
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, India
| | - Roberto Adamo
- Research Centre, GlaxoSmithKline (GSK), Siena, Italy
- *Correspondence: Roberto Adamo,
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12
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Toraskar S, Madhukar Chaudhary P, Kikkeri R. The Shape of Nanostructures Encodes Immunomodulation of Carbohydrate Antigen and Vaccine Development. ACS Chem Biol 2022; 17:1122-1130. [PMID: 35426652 DOI: 10.1021/acschembio.1c00998] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Gold nanoparticles (AuNPs) have shown remarkable potential for vaccine development, but the influence of the size and shape of nanoparticles modulating the T-cell-dependent carbohydrate antigen processing and immunomodulation is poorly investigated. Here, we described how different shapes and sizes of gold nanostructures carrying adjuvant modulate carbohydrate-based antigen processing in murine dendritic cells (mDCs) and subsequent T-cell activation produce a robust antibody response. As a prototype, CpG-adjuvant-coated spherical and rod- and star-shaped AuNPs were conjugated to the tripodal Tn-glycopeptide antigen to study their DC uptake and activation of T-cells in a DCs/T-cell co-culture assay. Our results showed that the spherical and star-shaped AuNPs displayed relatively weak receptor-mediated uptake and endosomal sequestration; however, they induced a high level of T helper-1 (Th1) biasing immune responses compared with rod-shaped AuNPs. Furthermore, the in vivo administration of AuNPs showed that the small spherical and star-shaped AuNPs induced an effective anti-Tn-glycopeptide immunoglobulin (IgG) antibody response compared with rod-shaped AuNPs. These results indicated that one could obtain superior carbohydrate vaccines by varying the shape and size parameters of nanostructures.
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Affiliation(s)
- Suraj Toraskar
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune 411008, Maharashtra, India
| | - Preeti Madhukar Chaudhary
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune 411008, Maharashtra, India
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune 411008, Maharashtra, India
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13
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Ganesh D, Jain P, Shanthamurthy CD, Toraskar S, Kikkeri R. Targeting Selectins Mediated Biological Activities With Multivalent Probes. Front Chem 2021; 9:773027. [PMID: 34926401 PMCID: PMC8677667 DOI: 10.3389/fchem.2021.773027] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 10/25/2021] [Indexed: 12/12/2022] Open
Abstract
Selectins are type-I transmembrane glycoproteins that are ubiquitously expressed on activated platelets, endothelial cells, and leukocytes. They bind to cell surface glycoproteins and extracellular matrix ligands, regulate the rolling of leukocytes in the blood capillaries, and recruit them to inflammatory sites. Hence, they are potential markers for the early detection and inhibition of inflammatory diseases, thrombosis, cardiovascular disorders, and tumor metastasis. Fucosylated and sialylated glycans, such as sialyl Lewisx, its isoform sialyl Lewisa, and heparan sulfate, are primary selectin ligands. Functionalization of these selectin-binding ligands on multivalent probes, such as nanoparticles, liposomes, and polymers, not only inhibits selectin-mediated biological activity but is also involved in direct imaging of the inflammation site. This review briefly summarizes the selectin-mediated various diseases such as thrombosis, cancer and recent progress in the different types of multivalent probes used to target selectins.
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Affiliation(s)
- Deepak Ganesh
- Indian Institute of Science Education and Research, Pune, India
| | - Prashant Jain
- Indian Institute of Science Education and Research, Pune, India
| | | | - Suraj Toraskar
- Indian Institute of Science Education and Research, Pune, India
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14
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Subramani B, Chaudhary PM, Kikkeri R. A Cell-Culture Technique to Encode Glyco-Nanoparticles Selectivity. Chem Asian J 2021; 16:3900-3904. [PMID: 34619024 DOI: 10.1002/asia.202101015] [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] [Received: 08/30/2021] [Revised: 10/06/2021] [Indexed: 11/07/2022]
Abstract
Nanoparticles (NPs) embedded with bioactive ligands such as carbohydrates, peptides, and nucleic acid have emerged as a potential tool to target biological processes. Traditional in vitro assays performed under statistic conditions may result in non-specific outcome sometimes, mainly because of the sedimentation and self-assembly nature of NPs. Inverted cell-culture assay allows for flexible and accurate detection of the receptor-mediated uptake and cytotoxicity of NPs. By combining this technique with glyco-gold nanoparticles, cellular internalization and cytotoxicity were investigated. Regioselective glycosylation patterns and shapes of the NPs could tune the receptors' binding affinity, resulting in precise cellular uptake of gold nanoparticles (AuNPs). Two cell lines HepG2 and HeLa were probed with galactosamine-embedded fluorescent AuNPs, revealing significant differences in cytotoxicity and uptake mechanism in upright and invert in vitro cell-culture assay, high-specificity toward uptake, and allowing for a rapid screening and optimization technique.
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Affiliation(s)
- Balamurugan Subramani
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Preeti Madhukar Chaudhary
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Raghavendra Kikkeri
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
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15
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Noy-Porat T, Mechaly A, Levy Y, Makdasi E, Alcalay R, Gur D, Aftalion M, Falach R, Leviatan Ben-Arye S, Lazar S, Zauberman A, Epstein E, Chitlaru T, Weiss S, Achdout H, Edgeworth JD, Kikkeri R, Yu H, Chen X, Yitzhaki S, Shapira SC, Padler-Karavani V, Mazor O, Rosenfeld R. Therapeutic antibodies, targeting the SARS-CoV-2 spike N-terminal domain, protect lethally infected K18-hACE2 mice. iScience 2021; 24:102479. [PMID: 33937725 PMCID: PMC8074524 DOI: 10.1016/j.isci.2021.102479] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [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: 02/04/2021] [Revised: 03/24/2021] [Accepted: 04/23/2021] [Indexed: 01/08/2023] Open
Abstract
Neutralizing antibodies represent a valuable therapeutic approach to countermeasure the current COVID-19 pandemic. Emergence of SARS-CoV-2 variants emphasizes the notion that antibody treatments need to rely on highly neutralizing monoclonal antibodies (mAbs), targeting several distinct epitopes for circumventing therapy escape mutants. Previously, we reported efficient human therapeutic mAbs recognizing epitopes on the spike receptor-binding domain (RBD) of SARS-CoV-2. Here we report the isolation, characterization, and recombinant production of 12 neutralizing human mAbs, targeting three distinct epitopes on the spike N-terminal domain of the virus. Neutralization mechanism of these antibodies involves receptors other than the canonical hACE2 on target cells, relying both on amino acid and N-glycan epitope recognition, suggesting alternative viral cellular portals. Two selected mAbs demonstrated full protection of K18-hACE2 transgenic mice when administered at low doses and late post-exposure, demonstrating the high potential of the mAbs for therapy of SARS-CoV-2 infection. Isolation of potent neutralizing antibodies, targeting the NTD of SARS-CoV-2 Involvement of both protein and glycan moieties in antibody binding was suggested Post-exposure protection of lethally infected K18-hACE2 mice by BLN12 and BLN14
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Affiliation(s)
- Tal Noy-Porat
- Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Adva Mechaly
- Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Yinon Levy
- Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Efi Makdasi
- Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Ron Alcalay
- Israel Institute for Biological Research, Ness-Ziona, Israel
| | - David Gur
- Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Moshe Aftalion
- Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Reut Falach
- Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Shani Leviatan Ben-Arye
- Department of Cell Research and Immunology, The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Shirley Lazar
- Israel Institute for Biological Research, Ness-Ziona, Israel
| | | | - Eyal Epstein
- Israel Institute for Biological Research, Ness-Ziona, Israel
| | | | - Shay Weiss
- Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Hagit Achdout
- Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Jonathan D. Edgeworth
- Department of Infectious Diseases, School of Immunology & Microbial Sciences, King's College London, London, UK
| | - Raghavendra Kikkeri
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Hai Yu
- Department of Chemistry, University of California-Davis, Davis, CA, USA
| | - Xi Chen
- Department of Chemistry, University of California-Davis, Davis, CA, USA
| | - Shmuel Yitzhaki
- Israel Institute for Biological Research, Ness-Ziona, Israel
| | | | - Vered Padler-Karavani
- Department of Cell Research and Immunology, The Shmunis School of Biomedicine and Cancer Research, The George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Ohad Mazor
- Israel Institute for Biological Research, Ness-Ziona, Israel
- Corresponding author
| | - Ronit Rosenfeld
- Israel Institute for Biological Research, Ness-Ziona, Israel
- Corresponding author
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16
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Jain P, Shanthamurthy CD, Leviatan Ben-Arye S, Woods RJ, Kikkeri R, Padler-Karavani V. Discovery of rare sulfated N-unsubstituted glucosamine based heparan sulfate analogs selectively activating chemokines. Chem Sci 2021; 12:3674-3681. [PMID: 33889380 PMCID: PMC8025211 DOI: 10.1039/d0sc05862a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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] [Received: 10/24/2020] [Accepted: 01/15/2021] [Indexed: 12/24/2022] Open
Abstract
Achieving selective inhibition of chemokines with structurally well-defined heparan sulfate (HS) oligosaccharides can provide important insights into cancer cell migration and metastasis. However, HS is highly heterogeneous in chemical composition, which limits its therapeutic use. Here, we report the rational design and synthesis of N-unsubstituted (NU) and N-acetylated (NA) heparan sulfate tetrasaccharides that selectively inhibit structurally homologous chemokines. HS analogs were produced by divergent synthesis, where fully protected HS tetrasaccharide precursor was subjected to selective deprotection and regioselectively O-sulfated, and O-phosphorylated to obtain 13 novel HS tetrasaccharides. HS microarray and SPR analysis with a wide range of chemokines revealed the structural significance of sulfation patterns and NU domain in chemokine activities for the first time. Particularly, HT-3,6S-NH revealed selective recognition by CCL2 chemokine. Further systematic interrogation of the role of HT-3,6S-NH in cancer demonstrated an effective blockade of CCL2 and its receptor CCR2 interactions, thereby impairing cancer cell proliferation, migration and invasion, a step towards designing novel drug molecules.
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Affiliation(s)
- Prashant Jain
- Department of Chemistry , Indian Institute of Science Education and Research , Pune-411008 , India .
| | - Chethan D Shanthamurthy
- Department of Chemistry , Indian Institute of Science Education and Research , Pune-411008 , India .
| | - Shani Leviatan Ben-Arye
- Department of Cell Research and Immunology , The Shmunis School of Biomedicine and Cancer Research , The George S. Wise Faculty of Life Sciences , Tel Aviv University , Tel Aviv , 69978 , Israel .
| | - Robert J Woods
- Complex Carbohydrate Research Center , University of Georgia , Athens 30606 , GA , USA
| | - Raghavendra Kikkeri
- Department of Chemistry , Indian Institute of Science Education and Research , Pune-411008 , India .
| | - Vered Padler-Karavani
- Department of Cell Research and Immunology , The Shmunis School of Biomedicine and Cancer Research , The George S. Wise Faculty of Life Sciences , Tel Aviv University , Tel Aviv , 69978 , Israel .
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17
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Jain P, Shanthamurthy CD, Leviatan Ben-Arye S, Yehuda S, Nandikol SS, Thulasiram HV, Padler-Karavani V, Kikkeri R. Synthetic heparan sulfate ligands for vascular endothelial growth factor to modulate angiogenesis. Chem Commun (Camb) 2021; 57:3516-3519. [PMID: 33704312 DOI: 10.1039/d1cc00964h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We report the discovery of a potential heparan sulfate (HS) ligand to target several growth factors using 13 unique HS tetrasaccharide ligands. By employing an HS microarray and SPR, we deciphered the crucial structure-binding relationship of these glycans with the growth factors BMP2, VEGF165, HB-EGF, and FGF2. Notably, GlcNHAc(6-O-SO3-)-IdoA(2-O-SO3-) (HT-2,6S-NAc) tetrasaccharide showed strong binding with the VEGF165 growth factor. In vitro vascular endothelial cell proliferation, migration and angiogenesis was inhibited in the presence of VEGF165 and HT-2,6S-NAc or HT-6S-NAc, revealing the potential therapeutic role of these synthetic HS ligands.
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Affiliation(s)
- Prashant Jain
- Indian Institute of Science Education and Research, Dr Homi Bhabha Road, Pune-411008, India.
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18
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Shanthamurthy CD, Leviatan Ben-Arye S, Kumar NV, Yehuda S, Amon R, Woods RJ, Padler-Karavani V, Kikkeri R. Heparan Sulfate Mimetics Differentially Affect Homologous Chemokines and Attenuate Cancer Development. J Med Chem 2021; 64:3367-3380. [PMID: 33683903 DOI: 10.1021/acs.jmedchem.0c01800] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Achieving selective inhibition of chemokine activity by structurally well-defined heparan sulfate (HS) or HS mimetic molecules can provide important insights into their roles in individual physiological and pathological cellular processes. Here, we report a novel tailor-made HS mimetic, which furnishes an exclusive iduronic acid (IdoA) scaffold with different sulfation patterns and oligosaccharide chain lengths as potential ligands to target chemokines. Notably, highly sulfated-IdoA tetrasaccharide (I-45) exhibited strong binding to CCL2 chemokine thereby blocking CCL2/CCR2-mediated in vitro cancer cell invasion and metastasis. Taken together, IdoA-based HS mimetics offer an alternative HS substrate to generate selective and efficient inhibitors for chemokines and pave the way to a wide range of new therapeutic applications in cancer biology and immunology.
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Affiliation(s)
- Chethan D Shanthamurthy
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
| | - Shani Leviatan Ben-Arye
- Department of Cell Research and Immunology, the Shmunis School of Biomedicine and Cancer Research, the George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | | | - Sharon Yehuda
- Department of Cell Research and Immunology, the Shmunis School of Biomedicine and Cancer Research, the George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Ron Amon
- Department of Cell Research and Immunology, the Shmunis School of Biomedicine and Cancer Research, the George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Robert J Woods
- Complex Carbohydrate Research Center, University of Georgia, Athens 306062 Georgia, United States
| | - Vered Padler-Karavani
- Department of Cell Research and Immunology, the Shmunis School of Biomedicine and Cancer Research, the George S. Wise Faculty of Life Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
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19
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Abstract
The aberrant expression of endocytic epidermal growth factor receptors (EGFRs) in cancer cells has emerged as a key target for therapeutic intervention. Here, we describe for the first time a state-of-the-art design for a heparan sulfate (HS) oligosaccharide-based nanovehicle to target EGFR-overexpressed cancer cells in cellular heterogeneity. An ELISA plate IC50 inhibition assay and surface plasma resonance (SPR) binding assay of structurally well-defined HS oligosaccharides showed that 6-O-sulfation (6-O-S) and 6-O-phosphorylation (6-O-P) of HS tetrasaccharides significantly enhanced EGFR cognate growth factor binding. The conjugation of these HS ligands to multivalent fluorescent gold nanoparticles (AuNPs) enabled the specific and efficient targeting of EGFR-overexpressed cancer cells. In addition, this heparinoid-nanovehicle exhibited selective homing to NPs in cancer cells in three-dimensional (3D) coculture spheroids, thus providing a novel target for cancer therapy and diagnostics in the tumor microenvironment (TME). Heparan sulfate oligosaccharide based nanovehicle greatly enhance the selective targeting of cancer cells in tumor microenvironment.![]()
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Affiliation(s)
- Prashant Jain
- Department of Chemistry, Indian Institute of Science Education and Research Pune-411008 India
| | - Chethan D Shanthamurthy
- Department of Chemistry, Indian Institute of Science Education and Research Pune-411008 India
| | | | - Raghavendra Kikkeri
- Department of Chemistry, Indian Institute of Science Education and Research Pune-411008 India
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20
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Danielson E, Dindo M, Porkovich AJ, Kumar P, Wang Z, Jain P, Mete T, Ziadi Z, Kikkeri R, Laurino P, Sowwan M. Non-enzymatic and highly sensitive lactose detection utilizing graphene field-effect transistors. Biosens Bioelectron 2020; 165:112419. [DOI: 10.1016/j.bios.2020.112419] [Citation(s) in RCA: 12] [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: 05/05/2020] [Revised: 06/26/2020] [Accepted: 06/29/2020] [Indexed: 12/19/2022]
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21
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Anand S, Mardhekar S, Raigawali R, Mohanta N, Jain P, D. Shanthamurthy C, Gnanaprakasam B, Kikkeri R. Continuous-Flow Accelerated Sulfation of Heparan Sulfate Intermediates. Org Lett 2020; 22:3402-3406. [DOI: 10.1021/acs.orglett.0c00878] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Saurabh Anand
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune-411 008, India
| | - Sandhya Mardhekar
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune-411 008, India
| | - Rakesh Raigawali
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune-411 008, India
| | - Nirmala Mohanta
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune-411 008, India
| | - Prashant Jain
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune-411 008, India
| | | | - Boopathy Gnanaprakasam
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune-411 008, India
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune-411 008, India
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22
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Subramani B, Shantamurthy CD, Maru P, Belekar MA, Mardhekar S, Shanmugam D, Kikkeri R. Demystifying a hexuronic acid ligand that recognizes Toxoplasma gondii and blocks its invasion into host cells. Org Biomol Chem 2019; 17:4535-4542. [PMID: 30994681 DOI: 10.1039/c9ob00744j] [Citation(s) in RCA: 2] [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: 12/24/2022]
Abstract
Toxoplasma gondii is a ubiquitous eukaryotic pathogen responsible for toxoplasmosis in humans and animals. This parasite is an obligate intracellular pathogen and actively invades susceptible host cells, a process which is mediated by specific receptor-ligand interactions. Here, we have identified an unnatural 2,4-disulfated d-glucuronic acid (Di-S-GlcA), a hexuronic acid composed of heparin/heparan sulfate, as a potential carbohydrate ligand that can selectively bind to T. gondii parasites. More importantly, the gelatin conjugated Di-S-GlcA multivalent probe displayed strong inhibition of parasite entry into host cells. These results open perspective for the future use of Di-S-GlcA epitopes in biomedical applications against toxoplasmosis.
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Affiliation(s)
- Balamurugan Subramani
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India.
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23
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Affiliation(s)
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research; Dr. Homi Bhabha Road 411008 Pune India
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24
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Chaudhary PM, Toraskar S, Yadav R, Hande A, Yellin R, Kikkeri R. Multivalent Sialosides: A Tool to Explore the Role of Sialic Acids in Biological Processes. Chem Asian J 2019; 14:1344-1355. [PMID: 30839167 PMCID: PMC7159662 DOI: 10.1002/asia.201900031] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/05/2019] [Indexed: 12/29/2022]
Abstract
Sialic acids (Sias) are fascinating nine-carbon monosaccharides that are primarily found on the terminus of the oligosaccharide chains of glycoproteins and glycolipids on cell surfaces. These Sias undergo a variety of structural modifications at their hydroxy and amine positions, thereby resulting in structural diversity and, hence, coordinating a variety of biological processes. However, deciphering the structural functions of such interactions is highly challenging, because the monovalent binding of Sias is extremely weak. Over the last decade, several multivalent Sia ligands have been synthesized to modulate their binding affinity with proteins/lectins. In this Minireview, we highlight recent developments in the synthesis of multivalent Sia probes and their potential applications. We will discuss four key multivalent families, that is, polymers, dendrimers, liposomes, and nanoparticles, and will emphasize the major parameters that are essential for the specific interactions of these molecules with proteins in biological systems.
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Affiliation(s)
- Preeti Madhukar Chaudhary
- Department of ChemistryIndian Institute of Science Education and ResearchDr. Homi Bhabha RoadPune411008MaharashtraIndia
| | - Suraj Toraskar
- Department of ChemistryIndian Institute of Science Education and ResearchDr. Homi Bhabha RoadPune411008MaharashtraIndia
| | - Rohan Yadav
- Department of ChemistryIndian Institute of Science Education and ResearchDr. Homi Bhabha RoadPune411008MaharashtraIndia
| | - Akshay Hande
- Department of ChemistryIndian Institute of Science Education and ResearchDr. Homi Bhabha RoadPune411008MaharashtraIndia
| | - Rina‐Arad Yellin
- Guangdong Technion Israel Institute of Technology241 Daxue RoadShantouGuangdong515063P. R. China
| | - Raghavendra Kikkeri
- Department of ChemistryIndian Institute of Science Education and ResearchDr. Homi Bhabha RoadPune411008MaharashtraIndia
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25
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Yadav R, Madhukar Chaudhary P, Subramani B, Toraskar S, Bavireddi H, Murthy RV, Sangabathuni S, Kikkeri R. Imaging and Targeting of the α(2-6) and α(2-3) Linked Sialic Acid Quantum Dots in Zebrafish and Mouse Models. ACS Appl Mater Interfaces 2018; 10:28322-28330. [PMID: 30058792 DOI: 10.1021/acsami.8b07668] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Sialic acid-conjugated nanocarriers have emerged as attractive biomarkers with promising biomedical applications. The translation of these nanocarriers into clinical applications requires in-depth assessment in animal models. However, due to the complexity, ethical concerns, and cost of the high-order animal system, there is an immediate need of information-rich simple animal models to decipher the biological significance. Herein, we performed in vivo head-to-head comparison of Neu5Acα(2-6) and α(2-3)Gal conjugated quantum dots (QDs) toxicity, biodistribution, and sequestration in wild-type zebrafish ( Danio rerio) and mouse model (C57BL). The fluorescent properties and cadmium composition of quantum dots were used to map the blood clearance, biodistribution, and sequestration of the sialylated QDs in major organs of both models. We observed that α(2-6) sialylated QDs preferentially have prolonged circulating half-life and broader biodistribution in both models. On the contrary, α(2-3) sialic acid and galactose-conjugated QDs have shortened blood circulation time and are sequestered in the liver, and cleared after several hours in both models. These results demonstrate the applicability of the zebrafish and sialylated QDs to target specific organs, as well as drug delivery and biomedical diagnostics.
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Affiliation(s)
- Rohan Yadav
- Indian Institute of Science Education and Research , Dr. Homi Bhabha Road , Pune 411008 , India
| | | | - Balamurugan Subramani
- Indian Institute of Science Education and Research , Dr. Homi Bhabha Road , Pune 411008 , India
| | - Suraj Toraskar
- Indian Institute of Science Education and Research , Dr. Homi Bhabha Road , Pune 411008 , India
| | - Harikrishna Bavireddi
- Indian Institute of Science Education and Research , Dr. Homi Bhabha Road , Pune 411008 , India
| | | | - Sivakoti Sangabathuni
- Indian Institute of Science Education and Research , Dr. Homi Bhabha Road , Pune 411008 , India
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research , Dr. Homi Bhabha Road , Pune 411008 , India
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26
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Shanthamurthy CD, Jain P, Yehuda S, Monteiro JT, Leviatan Ben-Arye S, Subramani B, Lepenies B, Padler-Karavani V, Kikkeri R. ABO Antigens Active Tri- and Disaccharides Microarray to Evaluate C-type Lectin Receptor Binding Preferences. Sci Rep 2018; 8:6603. [PMID: 29700341 PMCID: PMC5920051 DOI: 10.1038/s41598-018-24333-y] [Citation(s) in RCA: 4] [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: 01/19/2018] [Accepted: 03/28/2018] [Indexed: 12/20/2022] Open
Abstract
Understanding blood group antigen binding preferences for C-type lectin receptors holds promise for modulating immune responses, since several Gram-negative bacteria express blood group antigens as molecular mimicry to evade immune responses. Herein, we report the synthesis of ABO blood group antigen active tri and disaccharides to investigate the binding specificity with various C-type lectin receptors using glycan microarray. The results of binding preferences show that distinct glycosylation on the galactose and fucose motifs are key for C-type lectin receptor binding and that these interactions occur in a Ca2+-dependent fashion.
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Affiliation(s)
- Chethan D Shanthamurthy
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Prashant Jain
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Sharon Yehuda
- Tel-Aviv University, Department of Cell Research and Immunology, The George S. Wise Faculty of Life Sciences, Tel-Aviv, 69978, Israel
| | - João T Monteiro
- University of Veterinary Medicine Hannover, Immunology Unit & Research Center for Emerging Infections and Zoonoses, Hannover, Germany
| | - Shani Leviatan Ben-Arye
- Tel-Aviv University, Department of Cell Research and Immunology, The George S. Wise Faculty of Life Sciences, Tel-Aviv, 69978, Israel
| | - Balamurugan Subramani
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Bernd Lepenies
- University of Veterinary Medicine Hannover, Immunology Unit & Research Center for Emerging Infections and Zoonoses, Hannover, Germany.
| | - Vered Padler-Karavani
- Tel-Aviv University, Department of Cell Research and Immunology, The George S. Wise Faculty of Life Sciences, Tel-Aviv, 69978, Israel.
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India.
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27
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Gade M, Alex C, Leviatan Ben-Arye S, Monteiro JT, Yehuda S, Lepenies B, Padler-Karavani V, Kikkeri R. Microarray Analysis of Oligosaccharide-Mediated Multivalent Carbohydrate-Protein Interactions and Their Heterogeneity. Chembiochem 2018; 19:10.1002/cbic.201800037. [PMID: 29575424 PMCID: PMC6949124 DOI: 10.1002/cbic.201800037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Indexed: 01/06/2023]
Abstract
Carbohydrate-protein interactions (CPIs) are involved in a wide range of biological phenomena. Hence, the characterization and presentation of carbohydrate epitopes that closely mimic the natural environment is one of the long-term goals of glycosciences. Inspired by the multivalency, heterogeneity and nature of carbohydrate ligand-mediated interactions, we constructed a combinatorial library of mannose and galactose homo- and hetero-glycodendrons to study CPIs. Microarray analysis of these glycodendrons with a wide range of biologically important plant and animal lectins revealed that oligosaccharide structures and heterogeneity interact with each other to alter binding preferences.
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Affiliation(s)
- Madhuri Gade
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008 (India)
| | - Catherine Alex
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008 (India)
| | - Shani Leviatan Ben-Arye
- Tel-Aviv University, Department of Cell Research and Immunology, The George S. Wise Faculty of Life Sciences, Tel-Aviv 69978 (Israel)
| | - João T. Monteiro
- University of Veterinary Medicine Hannover, Immunology Unit & Research Center for Emerging Infections and Zoonoses, Bünteweg 17, 30559 Hannover (Germany)
| | - Sharon Yehuda
- Tel-Aviv University, Department of Cell Research and Immunology, The George S. Wise Faculty of Life Sciences, Tel-Aviv 69978 (Israel)
| | - Bernd Lepenies
- University of Veterinary Medicine Hannover, Immunology Unit & Research Center for Emerging Infections and Zoonoses, Bünteweg 17, 30559 Hannover (Germany)
| | - Vered Padler-Karavani
- Tel-Aviv University, Department of Cell Research and Immunology, The George S. Wise Faculty of Life Sciences, Tel-Aviv 69978 (Israel)
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008 (India)
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Sangabathuni S, Murthy RV, Gade M, Bavireddi H, Toraskar S, Sonar MV, Ganesh KN, Kikkeri R. Modeling Glyco-Collagen Conjugates Using a Host-Guest Strategy To Alter Phenotypic Cell Migration and in Vivo Wound Healing. ACS Nano 2017; 11:11969-11977. [PMID: 29077384 DOI: 10.1021/acsnano.7b01789] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The constructs and study of combinatorial libraries of structurally defined homologous extracellular matrix (ECM) glycopeptides can significantly accelerate the identification of cell surface markers involved in a variety of physiological and pathological processes. Herein, we present a simple and reliable host-guest approach to design a high-throughput glyco-collagen library to modulate the primary and secondary cell line migration process. 4-Amidoadamantyl-substituted collagen peptides and β-cyclodextrin appended with mono- or disaccharides were used to construct self-assembled glyco-collagen conjugates (GCCs), which were found to be thermally stable, with triple-helix structures and nanoneedles-like morphologies that altered cell migration processes. We also investigated the glycopeptide's mechanisms of action, which included interactions with integrins and cell signaling kinases. Finally, we report murine wound models to demonstrate the real-time application of GCCs. As a result of our observations, we claim that the host-guest model of ECM glycopeptides offers an effective tool to expedite identification of specific glycopeptides to manipulate cell morphogenesis, cell differentiation metastatic processes, and their biomedical applications.
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Affiliation(s)
- Sivakoti Sangabathuni
- Indian Institute of Science Education and Research , Dr. Homi Bhabha Road, Pune 411008, India
| | | | - Madhuri Gade
- Indian Institute of Science Education and Research , Dr. Homi Bhabha Road, Pune 411008, India
| | - Harikrishna Bavireddi
- Indian Institute of Science Education and Research , Dr. Homi Bhabha Road, Pune 411008, India
| | - Suraj Toraskar
- Indian Institute of Science Education and Research , Dr. Homi Bhabha Road, Pune 411008, India
| | - Mahesh V Sonar
- Indian Institute of Science Education and Research , Dr. Homi Bhabha Road, Pune 411008, India
| | - Krishna N Ganesh
- Indian Institute of Science Education and Research , Dr. Homi Bhabha Road, Pune 411008, India
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research , Dr. Homi Bhabha Road, Pune 411008, India
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Gade M, Chaudhary PM, Thulasiram HV, Kikkeri R. Engineering Cell Surface Glycans with Carbohydrate Enantiomers to Alter Bacterial Binding and Adhesion. ChemistrySelect 2017. [DOI: 10.1002/slct.201701875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Madhuri Gade
- Department of Chemistry; Indian Institute of Science Education and Research; Dr. Homi Bhabha Road Pune- 411008 India
| | - Preeti Madhukar Chaudhary
- Department of Chemistry; Indian Institute of Science Education and Research; Dr. Homi Bhabha Road Pune- 411008 India
| | - Hirekodathakallu V. Thulasiram
- Chemical Biology Unit; Division of Organic Chemistry; CSIR-National chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
| | - Raghavendra Kikkeri
- Department of Chemistry; Indian Institute of Science Education and Research; Dr. Homi Bhabha Road Pune- 411008 India
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Toraskar S, Gade M, Sangabathuni S, Thulasiram HV, Kikkeri R. Exploring the Influence of Shapes and Heterogeneity of Glyco-Gold Nanoparticles on Bacterial Binding for Preventing Infections. ChemMedChem 2017; 12:1116-1124. [DOI: 10.1002/cmdc.201700218] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/20/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Suraj Toraskar
- Department of Chemistry; Indian Institute of Science Education and Research, Dr. Homi Bhabha Road; Pune 411008 India
| | - Madhuri Gade
- Department of Chemistry; Indian Institute of Science Education and Research, Dr. Homi Bhabha Road; Pune 411008 India
| | - Sivakoti Sangabathuni
- Department of Chemistry; Indian Institute of Science Education and Research, Dr. Homi Bhabha Road; Pune 411008 India
| | - Hirekodathakallu V. Thulasiram
- Chemical Biology Unit, Division of Organic Chemistry; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune 411008 India
| | - Raghavendra Kikkeri
- Department of Chemistry; Indian Institute of Science Education and Research, Dr. Homi Bhabha Road; Pune 411008 India
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Sangabathuni S, Murthy RV, Chaudhary PM, Subramani B, Toraskar S, Kikkeri R. Mapping the Glyco-Gold Nanoparticles of Different Shapes Toxicity, Biodistribution and Sequestration in Adult Zebrafish. Sci Rep 2017; 7:4239. [PMID: 28652584 PMCID: PMC5484690 DOI: 10.1038/s41598-017-03350-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [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: 02/20/2017] [Accepted: 04/27/2017] [Indexed: 11/09/2022] Open
Abstract
Glyconanotechnology offers a broad range of applications across basic and translation research. Despite the tremendous progress in glyco-nanomaterials, there is still a huge gap between the basic research and therapeutic applications of these molecules. It has been reported that complexity and the synthetic challenges in glycans synthesis, the cost of the high order in vivo models and large amount of sample consumptions limited the effort to translate the glyco-nanomaterials into clinical applications. In this regards, several promising simple animal models for preliminary, quick analysis of the nanomaterials activities has been proposed. Herein, we have studied a systematic evaluation of the toxicity, biodistribution of fluorescently tagged PEG and mannose-capped gold nanoparticles (AuNPs) of three different shapes (sphere, rod, and star) in the adult zebrafish model, which could accelerate and provide preliminary results for further experiments in the higher order animal system. ICP-MS analysis and confocal images of various zebrafish organs revealed that rod-AuNPs exhibited the fast uptake. While, star-AuNPs displayed prolong sequestration, demonstrating its potential therapeutic efficacy in drug delivery.
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Affiliation(s)
- Sivakoti Sangabathuni
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | | | | | - Balamurugan Subramani
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Suraj Toraskar
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune, 411008, India.
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Bavireddi H, Vasudeva Murthy R, Gade M, Sangabathuni S, Chaudhary PM, Alex C, Lepenies B, Kikkeri R. Understanding carbohydrate-protein interactions using homologous supramolecular chiral Ru(ii)-glyconanoclusters. Nanoscale 2016; 8:19696-19702. [PMID: 27874116 DOI: 10.1039/c6nr06431k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Multivalent glycodendrimers make promising tools to tackle the basic and translational research in the field of carbohydrate-mediated interactions. Despite advances in glycodendrimers and glycopolymers, the multivalent probes available to date are still far from being ideal biological mimics. This work demonstrates the inherent chirality of glycodendrimers to be one of the promising factors to generate different spatial carbohydrate micro-environments to modulate specific carbohydrate-protein interactions. By exploiting the host-guest strategy, chiral Ru(ii) complexes (Δ and Λ) and mannose capped β-cyclodextrin (β-CD), we generated a library of homologous metallo-glycodendrimers (MGDs) with sizes of 50-70 nm. These nanoclusters can enantioselectively bind to specific C-type lectins and displayed selectivity in cellular uptake. We also discovered their potential clathrin-mediated endocytotic pathway in DC-SIGN and SIGNR3-transfected cell lines. Finally, in vivo biodistribution and sequestration of MGDs was determined to understand the role of chirality mediated spatial arrangement in carbohydrate-mediated interactions.
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Affiliation(s)
- Harikrishna Bavireddi
- Indian Institution of Science Education and Research, Dr Homi Bhabha Road, Pune 411008, India.
| | | | - Madhuri Gade
- Indian Institution of Science Education and Research, Dr Homi Bhabha Road, Pune 411008, India.
| | - Sivakoti Sangabathuni
- Indian Institution of Science Education and Research, Dr Homi Bhabha Road, Pune 411008, India.
| | | | - Catherine Alex
- Indian Institution of Science Education and Research, Dr Homi Bhabha Road, Pune 411008, India.
| | - Bernd Lepenies
- University of Veterinary Medicine Hannover, Immunology Unit & Research Center for Emerging Infections and Zoonoses, Hannover, Germany
| | - Raghavendra Kikkeri
- Indian Institution of Science Education and Research, Dr Homi Bhabha Road, Pune 411008, India.
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Yadav R, Leviatan Ben-Arye S, Subramani B, Padler-Karavani V, Kikkeri R. Screening of Neu5Acα(2-6)gal isomer preferences of siglecs with a sialic acid microarray. Org Biomol Chem 2016; 14:10812-10815. [PMID: 27714250 DOI: 10.1039/c6ob01688j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Sialic acids (Sias) are important terminal sugars on cell surfaces involved in a wide range of protein-carbohydrate interactions. Hence, agents modulating sias-mediated protein interactions are promising inhibitors or vaccine candidates. Here, we report the synthesis of Neu5Acα(2-6)Gal structural analogs and their binding to a series of siglecs. The results showed distinct binding patterns with conserved siglecs (hCD22 and mCD22) compared to rapid evolving siglecs (Siglecs -3 & -10).
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Affiliation(s)
- Rohan Yadav
- Indian Institute of Science Education and Research, Pashan, Pune 411008, India.
| | | | | | - Vered Padler-Karavani
- Tel-Aviv University, Department of Cell Research and Immunology, Tel-Aviv, 69978 Israel.
| | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research, Pashan, Pune 411008, India.
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Bavireddi H, Murthy RV, Gade M, Sangabathuni S, Kikkeri R. Correction: Supramolecular metalloglycodendrimers selectively modulate lectin binding and delivery of Ru(ii) complexes into mammalian cells. Org Biomol Chem 2016; 14:11014. [PMID: 27842148 DOI: 10.1039/c6ob90153k] [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: 11/21/2022]
Abstract
Correction for 'Supramolecular metalloglycodendrimers selectively modulate lectin binding and delivery of Ru(ii) complexes into mammalian cells' by Harikrishna Bavireddi, et al., Org. Biomol. Chem., 2016, DOI: 10.1039/c6ob01546h.
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Affiliation(s)
| | | | - Madhuri Gade
- Indian Institute of Science Education and Research, Pashan, Pune 411008, India.
| | | | - Raghavendra Kikkeri
- Indian Institute of Science Education and Research, Pashan, Pune 411008, India.
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Chaudhary PM, Sangabathuni S, Murthy RV, Paul A, Thulasiram HV, Kikkeri R. Assessing the effect of different shapes of glyco-gold nanoparticles on bacterial adhesion and infections. Chem Commun (Camb) 2016; 51:15669-72. [PMID: 26359971 DOI: 10.1039/c5cc05238f] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Achieving selective and sensitive carbohydrate-protein interactions (CPIs) using nanotechnology is an intriguing area of research. Here we demonstrate that the different shapes of gold nanoparticles (AuNPs) functionalized with monosaccharides tune the bacterial aggregations. The mechanism of aggregation revealed that the large number of surface interactions of rod shaped mannose-AuNPs with E. coli ORN 178 compared with spherical and star-shaped AuNPs exhibited higher avidity and sensitivity. Moreover, such sensitive binding can be used for effective inhibition of bacterial infection of cells.
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Sangabathuni S, Vasudeva Murthy R, Chaudhary PM, Surve M, Banerjee A, Kikkeri R. Glyco-gold nanoparticle shapes enhance carbohydrate-protein interactions in mammalian cells. Nanoscale 2016; 8:12729-12735. [PMID: 27279022 DOI: 10.1039/c6nr03008d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Advances in shape-dependent nanoparticle (NP) research have prompted a close scrutiny of the behaviour of nanostructures in vitro and in vivo. Data pertaining to cellular uptake and site specific sequestration of different shapes of NPs will undoubtedly assist researchers to design better nano-probes for therapeutic and imaging purposes. Herein, we investigated the shape dependent uptake of glyco-gold nanoparticles (G-AuNPs) in different cancer cell lines. Specifically, we have compared the behaviour of spherical, rod and star AuNPs with mannose and galactose conjugations. In vitro experiments showed that the rod-AuNPs exhibited the highest uptake over that of the star and spherical counterparts. Further, an investigation of the mechanism of the uptake clearly demonstrated clathrin mediated endocytosis of the specific G-AuNPs. These results reveal the benefits of different G-AuNP shapes in carbohydrate-mediated interactions.
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Murthy RV, Bharate P, Gade M, Sangabathuni S, Kikkeri R. Effect of Transition Metals on Polysialic Acid Structure and Functions. ChemMedChem 2016; 11:667-73. [DOI: 10.1002/cmdc.201600023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Raghavendra Vasudeva Murthy
- Department of Chemistry; Indian Institute of Science Education and Research; Dr. Homi Bhabha Road, Pashan Pune 411021 India
| | - Priya Bharate
- Department of Chemistry; Indian Institute of Science Education and Research; Dr. Homi Bhabha Road, Pashan Pune 411021 India
| | - Madhuri Gade
- Department of Chemistry; Indian Institute of Science Education and Research; Dr. Homi Bhabha Road, Pashan Pune 411021 India
| | - Sivakoti Sangabathuni
- Department of Chemistry; Indian Institute of Science Education and Research; Dr. Homi Bhabha Road, Pashan Pune 411021 India
| | - Raghavendra Kikkeri
- Department of Chemistry; Indian Institute of Science Education and Research; Dr. Homi Bhabha Road, Pashan Pune 411021 India
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Bavireddi H, Vasudeva Murthy R, Gade M, Sangabathuni S, Kikkeri R. Supramolecular metalloglycodendrimers selectively modulate lectin binding and delivery of Ru(ii) complexes into mammalian cells. Org Biomol Chem 2016; 14:10816-10821. [DOI: 10.1039/c6ob01546h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Host–guest interactions was used for controlled delivery of the Ru(ii)-glycodendrimers into cancer cells to induce cytotoxicity by reacting with the endoplasmic reticulum.
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Affiliation(s)
| | | | - Madhuri Gade
- Indian Institute of Science Education and Research
- Pune 411008
- India
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39
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Gade M, Khandelwal P, Sangabathuni S, Bavireddi H, Murthy RV, Poddar P, Kikkeri R. Immobilization of multivalent glycoprobes on gold surfaces for sensing proteins and macrophages. Analyst 2016; 141:2250-8. [DOI: 10.1039/c5an02336j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A non-covalent host–guest strategy to immobilize heptavalent glyco-β-cyclodextrin on gold-coated glass slides to study multivalent carbohydrate–protein interactions is described.
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Affiliation(s)
- Madhuri Gade
- Indian Institute of Science Education and Research
- Pune 411008
- India
| | - Puneet Khandelwal
- Physical and Materials Chemistry
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | | | | | | | - Pankaj Poddar
- Physical and Materials Chemistry
- CSIR-National Chemical Laboratory
- Pune-411008
- India
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Yadav R, Murthy RV, Kikkeri R. Sialic Acid Hydroxamate: A Potential Antioxidant and Inhibitor of Metal-Induced β-Amyloid Aggregates. Chembiochem 2015; 16:1448-53. [PMID: 25944626 DOI: 10.1002/cbic.201500162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 03/30/2015] [Indexed: 11/12/2022]
Abstract
Current methods for Alzheimer's treatment require a three-component system: metal chelators, antioxidants, and amyloid β (Aβ)-peptide-binding scaffolds. We report sialic acid (Sia) hydroxamate as a potential radical scavenger and metal chelator to inhibit Aβ aggregation. A cell viability assay revealed that Sia hydroxamate can protect HeLa and glioblastoma (LN229) cells from oxidative damage induced by the Fenton reaction. Sedimentation and turbidity assays showed profound protection of neuroblastoma SH-SY5Y cells from metal-induced Aβ aggregation and neural toxicity.
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Affiliation(s)
- Rohan Yadav
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune 411008 (India)
| | - Raghavendra Vasudeva Murthy
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune 411008 (India)
| | - Raghavendra Kikkeri
- Department of Chemistry, Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pashan, Pune 411008 (India).
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Abstract
We have developed peptidomimetic sialic acid (Sia) biosensors using boronic acid and arginine groups on the peptide backbone. The designed peptides were conjugated to fluorescent streptavidin via biotin enabling the optical labeling of cells. This approach provides unique opportunities to detect Sia composition on the cell surfaces and filopodia.
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Affiliation(s)
- Preeti Madhukar Chaudhary
- Indian Institute of Science Education and Research, Dr. Homi Bhabbha Road, Pashan, Pune 411008, India.
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Murthy RV, Bavireddi H, Gade M, Kikkeri R. Exploiting the Lactose-GM3Interaction for Drug Delivery. ChemMedChem 2015; 10:792-6. [DOI: 10.1002/cmdc.201500046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Indexed: 11/07/2022]
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Gade M, Paul A, Alex C, Choudhury D, Thulasiram HV, Kikkeri R. Supramolecular scaffolds on glass slides as sugar based rewritable sensors for bacteria. Chem Commun (Camb) 2015; 51:6346-9. [DOI: 10.1039/c5cc01019e] [Citation(s) in RCA: 17] [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: 12/23/2022]
Abstract
We describe here the sugar functionalized β-cyclodextrin–ferrocene glass slides as fully reversible bacterial biosensors under the influence of external adamantane carboxylic acid.
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Affiliation(s)
- Madhuri Gade
- Indian Institute of Science Education and Research
- Pune 411008
- India
| | - Ajay Paul
- Chemical Biology Unit
- Division of Organic chemistry
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Catherine Alex
- Indian Institute of Science Education and Research
- Pune 411008
- India
| | - Devika Choudhury
- Department of Energy Science and Engineering
- IIT Bombay
- Mumbai-400076
- India
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Kikkeri R, Padler-Karavani V, Diaz S, Verhagen A, Yu H, Cao H, Langereis MA, De Groot RJ, Chen X, Varki A. Quantum dot nanometal surface energy transfer based biosensing of sialic acid compositions and linkages in biological samples. Anal Chem 2013; 85:3864-70. [PMID: 23489180 PMCID: PMC5996995 DOI: 10.1021/ac400320n] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Current methods for analyzing sialic acid diversity in modifications and linkages require multistep processing, derivatization, and chromatographic analyses. We here report a single-step optical method for identification and quantification of different compositions of sialoglycans on glycoproteins and in serum. This was achieved by measuring and quantifying nanometal surface energy transfer (NSET) signals between quantum dots and gold nanoparticles bound to specific sialic acid binding proteins (SBPs) and sialic acid moieties, respectively. The biosensing process is based on the NSET turn-on by external sialic acid species that compete for binding to the SBPs. Selectivity of the biosensor toward sialoglycans can be designed to detect the total amount, glycosylation linkages (α2-6 vs α2-3), and modifications (9-O-acetyl and N-glycolyl groups) in the samples. This nanobiosensor is a prototype expected to achieve limits of the detection down to the micromolar range for high-throughput quantification and analysis of different compositions of sialoglycans present in biological or biomedical samples.
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Affiliation(s)
- Raghavendra Kikkeri
- Glycobiology Research and Training Center, Departments of Medicine and Cellular and Molecular Medicine, University of California, San Diego, La Jolla, California, United States
| | - Vered Padler-Karavani
- Glycobiology Research and Training Center, Departments of Medicine and Cellular and Molecular Medicine, University of California, San Diego, La Jolla, California, United States
| | - Sandra Diaz
- Glycobiology Research and Training Center, Departments of Medicine and Cellular and Molecular Medicine, University of California, San Diego, La Jolla, California, United States
| | - Andrea Verhagen
- Glycobiology Research and Training Center, Departments of Medicine and Cellular and Molecular Medicine, University of California, San Diego, La Jolla, California, United States
| | - Hai Yu
- Department of Chemistry, University of California, Davis, California 95616, United States
| | - Hongzhi Cao
- Department of Chemistry, University of California, Davis, California 95616, United States
| | - Martijn A. Langereis
- Virology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
| | - Raoul J. De Groot
- Virology Division, Department of Infectious Diseases and Immunology, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 1, 3584 CL Utrecht, The Netherlands
| | - Xi Chen
- Department of Chemistry, University of California, Davis, California 95616, United States
| | - Ajit Varki
- Glycobiology Research and Training Center, Departments of Medicine and Cellular and Molecular Medicine, University of California, San Diego, La Jolla, California, United States
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Bavireddi H, Bharate P, Kikkeri R. Probing carbohydrate–carbohydrate interactions by photoswitchable supramolecular glycoclusters. Chem Commun (Camb) 2013; 49:3988-90. [DOI: 10.1039/c3cc41025k] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Bavireddi H, Kikkeri R. Glyco-β-cyclodextrin capped quantum dots: synthesis, cytotoxicity and optical detection of carbohydrate-protein interactions. Analyst 2012; 137:5123-7. [PMID: 23001235 DOI: 10.1039/c2an35983a] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Highly fluorescent water soluble glyco-quantum dots were synthesized using a sonochemical procedure. The synthetic approach is based on specific host-guest interactions between β-cyclodextrin (β-CD) and trioctylphosphine oxide (TOPO) surfactant on quantum dots. The modified QDs were analyzed by a combination of FT-IR, (1)H-NOESY NMR spectroscopy and by TEM. The high sugar density on QDs resulted in selective colloidal aggregation with ConcanavalinA (ConA), Galanthus nivalis lectin (GNA) and Peanut agglutinin (PNA) lectins. Subsequently, in vitro studies indicated that β-CD modification of QDs enabled good cell viability of human hepatocellular carcinoma cell line (HepG2) cells. Finally, flow cytometry and confocal imaging studies revealed that βCDgal capped QDs undergo preferential binding with HepG2 cells. These results clearly demonstrate that β-CD capped QDs could be a promising candidate for further carbohydrate-based biomedical applications.
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Affiliation(s)
- Harikrishna Bavireddi
- Indian Institute of Science Education and Research, Sai Trinity Building, Pashan, Pune 411021, India
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48
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Azzouz N, Kamena F, Laurino P, Kikkeri R, Mercier C, Cesbron-Delauw MF, Dubremetz JF, De Cola L, Seeberger PH. Toxoplasma gondii secretory proteins bind to sulfated heparin structures. Glycobiology 2012; 23:106-20. [DOI: 10.1093/glycob/cws134] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Abstract
Here, we present the synthesis of two sialo-micelles to validate the significance of sialic acid orientation during specific carbohydrate-protein and carbohydrate-carbohydrate interactions. Our data clearly suggest that orientation of carboxylic acid and glycerol side chains of sialic acid moieties exert fine tuning of ligand-receptor interactions.
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Affiliation(s)
- Rohan Yadav
- Indian Institute of Science Education and Research, Sai Trinity Building, Pashan, Pune 411021, India
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50
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