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Haridas V, Haridas K. Granulomatosis with Polyangiitis (GPA) Mimicking Tuberculosis. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2017; 65:102-103. [PMID: 28462559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Granulomatosis with Polyangiitis (GPA) is a rare disease with varied clinical manifestations. We present a case of GPA which manifested initially with symptoms suggestive of meningeal tuberculosis. High index of suspicion and collective review of all clinical features helped in the correct diagnosis. Treatment of this case with rituximab provided significant symptomatic relief.
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Sharma S, Thorat SH, Gonnade RG, Jasinski JP, Butcher R, Haridas V. Front Cover: Engineering Molecular Topology: A Pseudopeptidic Macrocyclic Figure-Eight Motif (Eur. J. Org. Chem. 7/2017). European J Org Chem 2017. [DOI: 10.1002/ejoc.201700131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Haridas V, Kumar PPP, Bhardwaj I, Venugopalan P. Spatially Placed Tryptophan Residues: A Strategy for Generating Molecules with Unique Self-Assembly and Molecular Recognition Properties. ChemistrySelect 2017. [DOI: 10.1002/slct.201601569] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Abstract
This review presents an overview of synthetic systems that self-assemble to form vesicles.
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Haridas V, Sadanandan S, Dhawan S, Mishra R, Jain I, Goel G, Hu Y, Patel S. Synthetic minimalistic tryptophan zippers as a chiroptical switch. Org Biomol Chem 2017; 15:1661-1669. [DOI: 10.1039/c6ob02617f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Supramolecular helices with left and right handed chirality were designed and synthesized based on l-tryptophan that undergo helical inversion upon addition of H2PO4−.
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Sharma S, Thorat SH, Gonnade RG, Jasinski JP, Butcher R, Haridas V. Engineering Molecular Topology: A Pseudopeptidic Macrocyclic Figure-Eight Motif. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601365] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Chandrashekara S, Shobha V, Dharmanand BG, Jois R, Kumar S, Mahendranath KM, Haridas V, Prasad S, Singh Y, Daware MA, Swamy A, Subramanian R, Somashekar SA, Shanthappa AM, Anupama KR. Reduced incidence of extra-articular manifestations of RA through effective disease control: Karnataka Rheumatoid Arthritis Comorbidity (KRAC) study. Int J Rheum Dis 2016; 20:1694-1703. [DOI: 10.1111/1756-185x.12957] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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58
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Haridas V, Kumar PPP, Dhawan S, Devaki SJ. Designer Peptide Dendrons and Dendrimers Based Soft Materials Through Self-Assembly. ChemistrySelect 2016. [DOI: 10.1002/slct.201601181] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Shetty P, Patil VS, Mohan R, D’souza LC, Bargale A, Patil BR, Dinesh US, Haridas V, Kulkarni SP. Annexin A2 and its downstream IL-6 and HB-EGF as secretory biomarkers in the differential diagnosis of Her-2 negative breast cancer. Ann Clin Biochem 2016; 54:463-471. [DOI: 10.1177/0004563216665867] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background AnnexinA2 (AnxA2) membrane deposition has a critical role in HB-EGF shedding as well as IL-6 secretion in breast cancer cells. This autocrine cycle has a major role in cancer cell proliferation, migration and metastasis. The objective of the study is to demonstrate annexinA2-mediated autocrine regulation via HB-EGF and IL-6 in Her-2 negative breast cancer progression. Methods Secretory annexinA2, HB-EGF and IL-6 were analysed in the peripheral blood sample of Her-2 negative ( n = 20) and positive breast cancer patients ( n = 16). Simultaneously, tissue expression was analysed by immunohistochemistry. The membrane deposition of these secretory ligands and their autocrine regulation was demonstrated using triple-negative breast cancer cell line model. Results Annexina2 and HB-EGF expression are inversely correlated with Her-2, whereas IL-6 expression is seen in both Her-2 negative and positive breast cancer cells. RNA interference studies and upregulation of annexinA2 proved that annexinA2 is the upstream of this autocrine pathway. Abundant soluble serum annexinA2 is secreted in Her-2 negative breast cancer (359.28 ± 63.73 ng/mL) compared with normal (286.10 ± 70.04 ng/mL, P < 0.01) and Her-2 positive cases (217.75 ± 60.59 ng/mL, P < 0.0001). In Her-2 negative cases, the HB-EGF concentrations (179.16 ± 118.81 pg/mL) were highly significant compared with normal (14.92 ± 17.33 pg/mL, P < 0.001). IL-6 concentrations were increased significantly in both the breast cancer phenotypes as compared with normal ( P < 0.001). Conclusion The specific expression pattern of annexinA2 and HB-EGF in triple-negative breast cancer tissues, increased secretion compared with normal cells, and their major role in the regulation of EGFR downstream signalling makes these molecules as a potential tissue and serum biomarker and an excellent therapeutic target in Her-2 negative breast cancer.
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Chandrashekara S, Shobha V, Dharmanand BG, Jois R, Kumar S, Mahendranath KM, Haridas V, Prasad S, Singh Y, Daware MA, Swamy A, Subramanian R, Somashekar SA, Shanthappa AM, Anupama KR. Factors influencing remission in rheumatoid arthritis patients: results from Karnataka rheumatoid arthritis comorbidity (
KRAC
) study. Int J Rheum Dis 2016; 21:1977-1985. [DOI: 10.1111/1756-185x.12908] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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61
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Bhardwaj I, Haridas V. Self-assembling asymmetrical tripodal-like peptides as anion receptors. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Haridas V, Yadav A, Sharma S, Pandey S. A tryptophan-containing fluorescent intramolecular complex as a designer peptidic proton sensor. Phys Chem Chem Phys 2016; 18:15046-53. [PMID: 27194411 DOI: 10.1039/c6cp01912a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Pyrene and tryptophan groups judiciously placed on a novel molecular scaffold, namely, bispidine exhibited fluorescence due to the formation of an unprecedented emissive intramolecular complex in polar solvents. Upon protonation, the emission signal from the pyrene unit enhances at the expense of the emission signal from the complex. The probe demonstrates good sensitivity, excellent selectivity, and adequate reversibility towards proton sensing. The present design based on the bispidine scaffold opens up newer opportunities for the design of novel bispidine-peptide sensors.
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Sapala AR, Kundu J, Chowdhury P, Haridas V. Spontaneous vesiculation: a mechanistic insight from the study of hybrid peptide molecules. NEW J CHEM 2016. [DOI: 10.1039/c6nj02643e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
We report a series of hybrid peptide molecules that display spontaneous vesiculation. A closer look at their vesicle formation revealed a toroidal intermediate en route to the final vesicular form.
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Bhardwaj I, Jha D, Admane P, Panda AK, Haridas V. Self-assembling tryptophan-based designer peptides as intracellular delivery vehicles. Bioorg Med Chem Lett 2016; 26:672-676. [DOI: 10.1016/j.bmcl.2015.11.041] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 11/05/2015] [Accepted: 11/13/2015] [Indexed: 02/04/2023]
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Bijesh MB, Mishra R, Kurur ND, Haridas V. Morphology engineering: dramatic roles of serine and threonine in supramolecular assembly. RSC Adv 2016. [DOI: 10.1039/c6ra05218e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Macrocycles containing serine self-assembled into fibres, while threonine induced vesicular self-assembly. Macrocycles with serine can be driven to form vesicular assembly by incorporating a non-planar spacer.
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Praveen Kumar PP, Kathuria L, Haridas V. Cysteine-based silver nanoparticles as dual colorimetric sensors for cations and anions. NEW J CHEM 2016. [DOI: 10.1039/c6nj01486k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The synthesis of amide–triazole-based Ag NPs and their sensing ability towards anions and cations in aqueous solution were investigated. The importance of amide–triazole as a binding motif, in conjunction with Ag NPs, and the mode of the sensing ability of these amide–triazole Ag NPs as dual colorimetric sensors have been studied in detail.
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Sharma S, Gopalakrishna M, Venugopalan P, Suresh CH, Haridas V. Stackabilization: self-assembling bispidinophanes. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.08.072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Trivedi DJ, Haridas V. Five Cases of Alkaptonuria Among Two Generations of Single Family in Dharwad, Karnataka (India). Indian J Clin Biochem 2015. [DOI: 10.1007/s12291-015-0488-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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69
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Jani RH, Gupta R, Bhatia G, Rathi G, Ashok Kumar P, Sharma R, Kumar U, Gauri LA, Jadhav P, Bartakke G, Haridas V, Jain D, Mendiratta SK. A prospective, randomized, double-blind, multicentre, parallel-group, active controlled study to compare efficacy and safety of biosimilar adalimumab (Exemptia; ZRC-3197) and adalimumab (Humira) in patients with rheumatoid arthritis. Int J Rheum Dis 2015; 19:1157-1168. [PMID: 26176644 PMCID: PMC5215647 DOI: 10.1111/1756-185x.12711] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
AIM In this study, efficacy, tolerability and safety of biosimilar adalimumab (Exemptia; Zydus Cadila) was compared with reference adalimumab (Humira; AbbVie) in patients with moderate to severe rheumatoid arthritis (RA). METHOD In this multicentre, prospective, randomized, double-blind, active controlled parallel arm study, 120 patients with moderate to severe RA were given 40 mg of either test adalimumab (Exemptia) or reference adalimumab (Humira) by subcutaneous route every other week for 12 weeks. The primary endpoint was proportion of responders in two tretament groups by American College of Rheumatology 20 (ACR20) at week 12. The secondary endpoints were change in Disease Activity Score of 28 joints - C-reactive protein (DAS28-CRP) and proportion of patients with an ACR50 and ACR70 response in two treatment groups at week 12. Safety outcomes were also assessed. RESULTS After 12 weeks, patients treated every other week with test adalimumab (Zydus Cadila) had statistically similar response rates as compared to reference adalimumab (AbbVie): ACR20 (82% vs. 79.2%; P > 0.7); ACR50 (46%, vs. 43.4%; P > 0.7); ACR70 (14% vs. 15.1%; P > 0.8). The change in DAS28-CRP score was -2.1 ± 1.09 and -2.1 ± 1.21, in test and reference products, respectively. It was statistically significant compared to baseline, but not significantly different between the two products. Three serious adverse events and no death was reported during the study. Both adalimumab preparations were safe and well tolerated in this study. CONCLUSION The results demonstrated biosimilarity with respect to efficacy, tolerability and safety of test adalimumab (Exemptia) and reference adalimumab (Humira) in patients with moderate to severe RA.
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Kumar PPP, Suresh CH, Haridas V. A supramolecular approach to metal ion sensing: cystine-based designer systems for Cu2+, Hg2+, Cd2+ and Pb2+ sensing. RSC Adv 2015. [DOI: 10.1039/c4ra14389b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Here, we demonstrate an emergent property from a mixture of two simple cystine containing molecules. The 1 : 1 mixture of pyrene-labelled S1 and tryptophan appended S2 form the heterodimeric system S1 : S2, which shows a unique metal binding ability.
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Haridas V, Sapala AR, Jasinski JP. Self-assembling triazolophanes: from croissants through donuts to spherical vesicles. Chem Commun (Camb) 2015; 51:6905-8. [DOI: 10.1039/c4cc09587a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A detailed ultramicroscopic analysis of three novel triazolophanes demonstrated a hierarchical self-assembly mechanism. These macrocycles self-assemble in a concentration dependent manner to hemi-toroids, toroids and finally to vesicles. The finding was supported by ultramicroscopy and X-ray crystal structure studies.
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Haridas V, Sadanandan S, Dheepthi NU. Sortase-based bio-organic strategies for macromolecular synthesis. Chembiochem 2014; 15:1857-67. [PMID: 25111709 DOI: 10.1002/cbic.201402013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Indexed: 11/11/2022]
Abstract
Protein ligation sorted: SrtA is one of the molecules nature uses to perform chemoselective ligation on amazingly complex protein molecules. Sortase-mediated ligation (SML) with chemoselective reactions will find a variety of applications in chemistry, biology, and medicine in the near future.
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Haridas V, Sadanandan S, Collart-Dutilleul PY, Gronthos S, Voelcker NH. Lysine-appended polydiacetylene scaffolds for human mesenchymal stem cells. Biomacromolecules 2014; 15:582-90. [PMID: 24364714 DOI: 10.1021/bm4015655] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
We report on the self-assembly based fabrication of fibrous polymers for tissue engineering applications. Directed self-assembly followed by polymerization of lysine-appended diacetylenes generated a variety of polymers (P1-P5) with distinct chemical properties. The self-assembly along with the conjugated double and triple bonds and rigid geometry of diacetylene backbone imposed a nanofibrous morphology on the resulting polymers. Chemical properties including wettability of the polymers were tuned by using lysine (Lys) with orthogonal protecting groups (Boc and Fmoc). These Lys-appended polydiacetylene scaffolds were compared in terms of their efficiency toward human mesenchymal stem cells adhesion and spreading. Interestingly, polymer P4 containing Lys N(α)-NH2 and Lys N(ε)-Boc with balanced wettability supported cell adhesion better than the more hydrophobic polymer P2 with N(ε)-Boc and N(α)-Fmoc or more hydrophilic polymer P5 containing free N(ε) and N(α) amino groups. The molecular level control in the fabrication of nanofibrous polymers compared with other existing methods for the generation of fibrous polymers is the hallmark of this work.
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Haridas V, Praveen Kumar PP, Suresh CH. Cysteine-based fluorescence “turn-on” sensors for Cu2+ and Ag+. RSC Adv 2014. [DOI: 10.1039/c4ra10936h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Amino acid cysteine was transformed to fluorescent turn-on sensors for Cu+2 and Ag+. The metal ion binding was studied in detail by spectroscopic, microscopic, calorimetric and computational methods.
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Haridas V, Bijesh MB, Chandra A, Sharma S, Shandilya A. Self-assembly of lipidated pseudopeptidic triazolophanes to vesicles. Chem Commun (Camb) 2014; 50:13797-800. [DOI: 10.1039/c4cc04543b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We have transformed the amino acid serine to 32-membered lipidated cyclophanes employing CuAAc reaction. These serine-based lipidated triazolophanes assemble to sturdy and robust vesicles.
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