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Akhtar N, Biswas O, Manna D. Stimuli-responsive transmembrane anion transport by AIE-active fluorescent probes. Org Biomol Chem 2021; 19:7446-7459. [PMID: 34612363 DOI: 10.1039/d1ob00584g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Anticancer drug resistance implicates multifunctional mechanisms, and hypoxia is one of the key factors in therapeutic resistance. Hypoxia-specific therapy is considered an extremely effective strategy to fight against cancer. The development of small molecule-based synthetic anion transporters has also recently drawn attention for their potential therapeutic applications against several ion-transport-associated diseases, such as cancer and others. Herein, we describe the development of a hypoxia-responsive proanionophore to trigger controlled transport of anions across membranes under pathogenic conditions. Herein, we report the development of tetraphenylethene (TPE)-based anion transporters. The sulfonium-linked p-nitrobenzyl containing TPE-based proanionophore could be converted into a lipophilic fluorescent Cl- ion carrier in a hypoxic or reductive environment. Stimuli such as nitroreductase (NTR) and glutathione (GSH) mediated regeneration of the TPE-based active Cl- ion transporter also showed aggregation-induced emission (AIE) properties. We hypothesize that such hypoxia and reductive stimuli activatable proanionophores have tremendous potential to fight against channelopathies, including cancer.
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Affiliation(s)
- Nasim Akhtar
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
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2
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Paul S, Roy A, Deka SJ, Panda S, Srivastava GN, Trivedi V, Manna D. Synthesis and evaluation of oxindoles as promising inhibitors of the immunosuppressive enzyme indoleamine 2,3-dioxygenase 1. MEDCHEMCOMM 2017; 8:1640-1654. [PMID: 30108875 DOI: 10.1039/c7md00226b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 06/15/2017] [Indexed: 01/29/2023]
Abstract
Indoleamine 2,3-dioxygenase 1 (IDO1) is considered as an important therapeutic target for the treatment of cancer, chronic infections and other diseases that are associated with immune suppression. Recent developments in understanding the catalytic mechanism of the IDO1 enzyme revealed that conversion of l-tryptophan (l-Trp) to N-formylkynurenine proceeded through an epoxide intermediate state. Accordingly, we synthesized a series of 3-substituted oxindoles from l-Trp, tryptamine and isatin. Compounds with C3-substituted oxindole moieties showed moderate inhibitory activity against the purified human IDO1 enzyme. Their optimization led to the identification of potent compounds, 6, 22, 23 and 25 (IC50 = 0.19 to 0.62 μM), which are competitive inhibitors of IDO1 with respect to l-Trp. These potent compounds also showed IDO1 inhibition potencies in the low-micromolar range (IC50 = 0.33-0.49 μM) in MDA-MB-231 cells. The cytotoxicity of these potent compounds was trivial in different model cancer (MDA-MB-231, A549 and HeLa) cells and macrophage (J774A.1) cells. Stronger selectivity for the IDO1 enzyme (124 to 210-fold) over the tryptophan 2,3-dioxygenase (TDO) enzyme was also observed for these compounds. These results suggest that the oxindole moiety of the compounds could mimic the epoxide intermediate state of l-Trp. Therefore, the structural simplicity and low-micromolar inhibition potencies of these 3-substituted oxindoles make them quite attractive for further investigation of IDO1 function and immunotherapeutic applications.
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Affiliation(s)
- Saurav Paul
- Department of Chemistry , Indian Institute of Technology Guwahati , Assam 781039 , India . dmanna@iitg. ernet.in
| | - Ashalata Roy
- Department of Chemistry , Indian Institute of Technology Guwahati , Assam 781039 , India . dmanna@iitg. ernet.in
| | - Suman Jyoti Deka
- Department of Biosciences and Bioengineering , Indian Institute of Technology Guwahati , Assam 781039 , India
| | - Subhankar Panda
- Department of Chemistry , Indian Institute of Technology Guwahati , Assam 781039 , India . dmanna@iitg. ernet.in
| | - Gopal Narayan Srivastava
- Department of Chemistry , Indian Institute of Technology Guwahati , Assam 781039 , India . dmanna@iitg. ernet.in
| | - Vishal Trivedi
- Department of Biosciences and Bioengineering , Indian Institute of Technology Guwahati , Assam 781039 , India
| | - Debasis Manna
- Department of Chemistry , Indian Institute of Technology Guwahati , Assam 781039 , India . dmanna@iitg. ernet.in
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Paul S, Roy A, Deka SJ, Panda S, Trivedi V, Manna D. Nitrobenzofurazan derivatives of N'-hydroxyamidines as potent inhibitors of indoleamine-2,3-dioxygenase 1. Eur J Med Chem 2016; 121:364-375. [PMID: 27267006 DOI: 10.1016/j.ejmech.2016.05.061] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 05/25/2016] [Accepted: 05/26/2016] [Indexed: 11/16/2022]
Abstract
Tryptophan metabolism through the kynurenine pathway is considered as a crucial mechanism in immune tolerance. Indoleamine 2,3-dioxygenase 1 (IDO1) plays a key role in tryptophan catabolism in the immune system and it is also considered as an important therapeutic target for the treatment of cancer and other diseases that are linked with kynurenine pathway. In this study, a series of nitrobenzofurazan derivatives of N'-hydroxybenzimidamides (1) and N'-hydroxy-2-phenylacetimidamides (2) were synthesized and their inhibitory activities against human IDO1 enzyme were tested using in-vitro and cellular enzyme activity assay. The optimization leads to the identification of potent compounds, 1d, 2i and 2k (IC50 = 39-80 nM), which are either competitive or uncompetitive inhibitors of IDO1 enzyme. These compounds also showed IDO1 inhibition potencies in the nanomolar range (IC50 = 50-71 nM) in MDA-MB-231 cells with no/negligible amount of cytotoxicity. The stronger selectivity of the potent compounds for IDO1 enzyme over tryptophan 2,3-dioxygenase (TDO) enzyme (312-1593-fold) also makes them very attractive for further immunotherapeutic applications.
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Affiliation(s)
- Saurav Paul
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Ashalata Roy
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Suman Jyoti Deka
- Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Subhankar Panda
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Vishal Trivedi
- Department of Bioscience and Bioengineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Debasis Manna
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
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Gorai S, Paul D, Haloi N, Borah R, Santra MK, Manna D. Mechanistic insights into the phosphatidylinositol binding properties of the pleckstrin homology domain of lamellipodin. MOLECULAR BIOSYSTEMS 2016; 12:747-57. [DOI: 10.1039/c5mb00731c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lpd-PH domain strongly interacts with PI(3,4)P2containing liposome without any membrane penetration.
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Affiliation(s)
- Sukhamoy Gorai
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | | | - Nandan Haloi
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | - Rituparna Borah
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | | | - Debasis Manna
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
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5
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Otsuka N, Ueda K, Ohyagi N, Shimizu K, Katakawa K, Kumamoto T, Higashi K, Yamamoto K, Moribe K. An Insight into Different Stabilization Mechanisms of Phenytoin Derivatives Supersaturation by HPMC and PVP. J Pharm Sci 2015; 104:2574-82. [PMID: 26059285 DOI: 10.1002/jps.24527] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Revised: 04/10/2015] [Accepted: 05/13/2015] [Indexed: 12/27/2022]
Abstract
In this study, we examined the stabilization mechanism of drug supersaturation by hypromellose (HPMC) and polyvinylpirrolidone (PVP). The poorly water-soluble drugs, phenytoin (diphenylhydantoin, DPH), and its synthesized derivatives monomethylphenytoin (MDPH) and dimethylphenytoin (DMDPH) were used. DPH supersaturation was efficiently maintained by both HPMC and PVP. HPMC maintained the supersaturation of MDPH and DMDPH in a similar manner to that of DPH, whereas the ability of PVP to maintain drug supersaturation increased as follows: DPH > MDPH > DMDPH. Caco-2 permeation studies and nuclear magnetic resonance measurements revealed that the permeability and molecular state of the drug in a HPMC solution barely changed. In fact, the solubilization of the drug into PVP changed its apparent permeability and molecular state. The drug solubilization efficiency by PVP was higher and followed the order: DPH > MDPH > DMDPH. The different drug solubilization efficiencies most likely result from the different strengths in the intermolecular interaction between the DPH derivatives and PVP. The difference in the stabilization mechanism of drug supersaturation by HPMC and PVP could determine whether the efficient maintenance of the drug supersaturation was dependent on the drug species.
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Affiliation(s)
- Naoya Otsuka
- Graduate School of Pharmaceutical Sciences, Chiba University, Chuo-ku, Chiba, 260-8675, Japan
| | - Keisuke Ueda
- Graduate School of Pharmaceutical Sciences, Chiba University, Chuo-ku, Chiba, 260-8675, Japan
| | - Naoko Ohyagi
- Graduate School of Pharmaceutical Sciences, Chiba University, Chuo-ku, Chiba, 260-8675, Japan
| | - Kozue Shimizu
- Department of Synthetic Organic Chemistry, Research Institute of Pharmaceutical Sciences, Musashino University, Nishitokyo, Tokyo, 202-8585, Japan
| | - Kazuaki Katakawa
- Department of Synthetic Organic Chemistry, Research Institute of Pharmaceutical Sciences, Musashino University, Nishitokyo, Tokyo, 202-8585, Japan
| | - Takuya Kumamoto
- Department of Synthetic Organic Chemistry, Research Institute of Pharmaceutical Sciences, Musashino University, Nishitokyo, Tokyo, 202-8585, Japan
| | - Kenjirou Higashi
- Graduate School of Pharmaceutical Sciences, Chiba University, Chuo-ku, Chiba, 260-8675, Japan
| | - Keiji Yamamoto
- Graduate School of Pharmaceutical Sciences, Chiba University, Chuo-ku, Chiba, 260-8675, Japan
| | - Kunikazu Moribe
- Graduate School of Pharmaceutical Sciences, Chiba University, Chuo-ku, Chiba, 260-8675, Japan
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6
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Gorai S, Bagdi PR, Borah R, Paul D, Santra MK, Khan AT, Manna D. Insights into the inhibitory mechanism of triazole-based small molecules on phosphatidylinositol-4,5-bisphosphate binding pleckstrin homology domain. Biochem Biophys Rep 2015; 2:75-86. [PMID: 29124147 PMCID: PMC5668642 DOI: 10.1016/j.bbrep.2015.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 05/18/2015] [Accepted: 05/19/2015] [Indexed: 12/11/2022] Open
Abstract
Background Phosphatidylinositol 4,5-bisphosphate [PI(4,5)P2] is an important regulator of several cellular processes and a precursor for other second messengers which are involved in cell signaling pathways. Signaling proteins preferably interact with PI(4,5)P2 through its pleckstrin homology (PH) domain. Efforts are underway to design small molecule-based antagonist, which can specifically inhibit the PI(4,5)P2/PH-domain interaction to establish an alternate strategy for the development of drug(s) for phosphoinositide signaling pathways. Methods Surface plasmon resonance, molecular docking, circular dichroism, competitive Förster resonance energy transfer, isothermal titration calorimetric analyses and liposome pull down assay were used. Results In this study, we employed 1,2,3-triazol-4-yl methanol containing small molecule (CIPs) as antagonists for PI(4,5)P2/PH-domain interaction and determined their inhibitory effect by using competitive-surface plasmon resonance analysis (IC50 ranges from 53 to 159 nM for PI(4,5)P2/PLCδ1-PH domain binding assay). We also used phosphatidylinositol 3,4,5-trisphosphate [PI(3,4,5)P3], phosphatidylinositol 3,4-bisphosphate [PI(3,4)P2], PI(4,5)P2 specific PH-domains to determine binding selectivity of the compounds. Various physicochemical analyses showed that the compounds have weak affect on fluidity of the model membrane but, strongly interact with the phospholipase C δ1 (PLCδ1)-PH domains. The 1,2,3-triazol-4-yl methanol moiety and nitro group of the compounds are essential for their exothermic interaction with the PH-domains. Potent compound can efficiently displace PLCδ1-PH domain from plasma membrane to cytosol in A549 cells. Conclusions Overall, our studies demonstrate that these compounds interact with the PIP-binding PH-domains and inhibit their membrane recruitment. General significance These results suggest specific but differential binding of these compounds to the PLCδ1-PH domain and emphasize the role of their structural differences in binding parameters. These triazole-based compounds could be directly used/further developed as potential inhibitor for PH domain-dependent enzyme activity.
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Affiliation(s)
- Sukhamoy Gorai
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Prasanta Ray Bagdi
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Rituparna Borah
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Debasish Paul
- National Center for Cell Science, Pune 411007, Maharashtra, India
| | | | - Abu Taleb Khan
- Alia University, DN 18, 8th Floor, Sector V, Kolkata 700091, India
| | - Debasis Manna
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India
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Borah R, Mamidi N, Panda S, Gorai S, Pathak SK, Manna D. Elucidating the interaction of γ-hydroxymethyl-γ-butyrolactone substituents with model membranes and protein kinase C-C1 domains. MOLECULAR BIOSYSTEMS 2015; 11:1389-99. [PMID: 25820877 DOI: 10.1039/c5mb00100e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The protein kinase C (PKC) family of proteins is an attractive drug target. Dysregulation of PKC-dependent signalling pathways is related to several human diseases like cancer, immunological and other diseases. We approached the problem of altering PKC activities by developing C1 domain-based PKC ligands. In this report γ-hydroxymethyl-γ-butyrolactone (HGL) substituents were investigated in an effort to develop small molecule-based PKC regulators with higher specificity for C1 domain than the endogenous diacylglycerols (DAGs). Extensive analysis of membrane-ligands interaction measurements revealed that the membrane-active compounds strongly interact with the lipid bilayers and the hydrophilic parts of compounds localize at the bilayer/water interface. The pharmacophores like hydroxymethyl, carbonyl groups and acyl-chain length of the compounds are crucial for their interaction with the C1 domain proteins. The potent compounds showed more than 17-fold stronger binding affinity for the C1 domains than DAG under similar experimental conditions. Nonradioactive kinase assay confirmed that these potent compounds have similar or better PKC dependent phosphorylation capabilities than DAG under similar experimental conditions. Hence, our findings reveal that these HGL analogues represent an attractive group of structurally simple C1 domain ligands that can be further structurally altered to improve their potencies.
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Affiliation(s)
- Rituparna Borah
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
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8
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Gorai S, Paul S, Sankaran G, Borah R, Santra MK, Manna D. Inhibition of phosphatidylinositol-3,4,5-trisphosphate binding to the AKT pleckstrin homology domain by 4-amino-1,2,5-oxadiazole derivatives. MEDCHEMCOMM 2015. [DOI: 10.1039/c5md00260e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
4-Amino-1,2,5-oxadiazole derivatives has been developed as an inhibitor of AKT pleckstrin homology domain.
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Affiliation(s)
- Sukhamoy Gorai
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | - Saurav Paul
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | | | - Rituparna Borah
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
| | | | - Debasis Manna
- Department of Chemistry
- Indian Institute of Technology Guwahati
- India
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9
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Talukdar D, Panda S, Borah R, Manna D. Membrane Interaction and Protein Kinase C-C1 Domain Binding Properties of 4-Hydroxy-3-(hydroxymethyl) Phenyl Ester Analogues. J Phys Chem B 2014; 118:7541-7553. [PMID: 24936745 DOI: 10.1021/jp5044305] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Protein kinase C (PKC)-C1 domain targeted regulator development is considered as a potential therapeutic strategy for the treatment of cancer and immunological and other diseases. Efforts are underway to synthesize small molecules to achieve higher specificity for the C1-domain than the natural activator, diacylglycerols (DAGs). In this regard, we conveniently synthesized 4-hydroxy-3-(hydroxymethyl) phenyl ester analogues and measured in vitro C1-domain binding properties. We also investigated different physicochemical properties of the synthesized molecules, including aggregation behavior in aqueous solution and interaction with lipid bilayers, and others with an aim for better understanding of their C1-domain binding properties. The results showed that the membrane-active compounds aggregate in aqueous solution at a reasonably lower concentration and strongly interact with the lipid bilayer. The hydrophilic part of the compounds localize at the bilayer/water interface and accessible for C1-domain binding. Biophysical studies revealed that the hydroxyl, hydroxymethyl, and carbonyl groups and acyl chain length are important for their interaction with the C1-domain. The potent compound showed more than 10-fold stronger binding affinity for the C1-domains than DAG under similar experimental conditions. Therefore, our findings reveal that these ester analogues represent an attractive group of C1-domain ligands that can be further structurally modified to improve their binding and activity.
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Affiliation(s)
- Dipjyoti Talukdar
- Department of Chemistry, Indian Institute of Technology , Guwahati, Assam 781039, India
| | - Subhankar Panda
- Department of Chemistry, Indian Institute of Technology , Guwahati, Assam 781039, India
| | - Rituparna Borah
- Department of Chemistry, Indian Institute of Technology , Guwahati, Assam 781039, India
| | - Debasis Manna
- Department of Chemistry, Indian Institute of Technology , Guwahati, Assam 781039, India
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10
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Elucidation of different inhibition mechanism of small chemicals on PtdInsP-binding domains using in silico docking experiments. Bioorg Med Chem Lett 2014; 24:2256-62. [PMID: 24736117 DOI: 10.1016/j.bmcl.2014.03.085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2014] [Revised: 03/24/2014] [Accepted: 03/26/2014] [Indexed: 10/25/2022]
Abstract
Phosphatidylinositides, most negatively charged lipids in cellular membranes, regulate diverse effector proteins through the interaction with their lipid binding domains. We have previously reported inhibitory effect of small chemicals on the interaction between PtdIns(3,4,5)P3 and Btk PH domain. Here, we report that the inhibitory effects of same sets of chemicals on Grp1 PH domain and epsin1 ENTH domain to elucidate diversity of inhibitory mechanisms upon different lipid binding domains. Among the chemicals, chemical 8 showed best inhibition in vitro assay for Grp1 PH domain and epsin1 ENTH domain, and then the interaction between small chemicals and lipid binding domains was further investigated by in silico docking experiments. As a result, it was concluded that the diverse inhibitory effects on different lipid binding domains were dependent on not only the number of interactions between small chemical and domain, but also additional interaction with positively charged surfaces as the secondary binding sites. This finding will help to develop lipid binding inhibitors as antagonists for lipid-protein interactions, and these inhibitors would be novel therapeutic drug candidates via regulating effector proteins involved in severe human diseases.
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Yoon Y. Small chemicals with inhibitory effects on PtdIns(3,4,5)P3 binding of Btk PH domain. Bioorg Med Chem Lett 2014; 24:2334-9. [PMID: 24731277 DOI: 10.1016/j.bmcl.2014.03.068] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Revised: 03/10/2014] [Accepted: 03/22/2014] [Indexed: 10/25/2022]
Abstract
Phosphatidylinositol-3,4-5-triphosphates (PtdIns(3,4,5)P3) formed by phosphoinositide-3-kinase (PI3K) had been known as a signaling molecule that plays important roles in diverse cellular processes such as cell signaling, metabolism, cell differentiation, and apoptosis. PtdIns(3,4,5)P3 regulates diverse cellular processes by recruiting effector proteins to the specific cellular locations for correct functions. In this study, we reported the inhibitory effect of small chemicals on the interaction between PtdIns(3,4,5)P3-Btk PH domain. Small chemicals were synthesized based on structural similarity of PtdInsP head-groups, and tested the inhibitory effects in vitro via surface plasmon resonance (SPR). As a result, the chemical 8 showed highest inhibitory effect with 17μM of IC50 value. To elucidate diverse inhibitory effects of different small chemicals we employed in silico docking experiment using molecular modeling and simulation. The result of docking experiments showed chemical 8 has more hydrogen bonding with the residues in PtdIns(3,4,5)P3 binding site of Btk PH domain than others. Overall, our studies demonstrate the efficient approach to develop lipid binding inhibitors, and further we can use these chemicals to regulate effector proteins. In addition, our study would provide new insight that lipid binding domain may be the attractive therapeutic targets to treat severe human diseases.
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Affiliation(s)
- Youngdae Yoon
- Department of Environmental Health Science, Konkuk University, Seoul 143-701, Republic of Korea.
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12
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Mamidi N, Panda S, Borah R, Manna D. Synthesis and protein kinase C (PKC)-C1 domain binding properties of diacyltetrol based anionic lipids. MOL. BIOSYST. 2014; 10:3002-13. [DOI: 10.1039/c4mb00382a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Protein kinase C-C1 domain binding specificity of the anionic hybrid lipids.
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Affiliation(s)
- Narsimha Mamidi
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam 781039, India
| | - Subhankar Panda
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam 781039, India
| | - Rituparna Borah
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam 781039, India
| | - Debasis Manna
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Assam 781039, India
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13
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Borah R, Talukdar D, Gorai S, Bain D, Manna D. Bilayer interaction and protein kinase C-C1 domain binding studies of kojic acid esters. RSC Adv 2014. [DOI: 10.1039/c4ra02352h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis of kojic acid ester analogues and their lipid bilayer interaction and PKC-C1 domain binding properties have been demonstrated in this present work.
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Affiliation(s)
- Rituparna Borah
- Department of Chemistry
- Indian Institute of Technology Guwahati
- , India
| | - Dipjyoti Talukdar
- Department of Chemistry
- Indian Institute of Technology Guwahati
- , India
| | - Sukhamoy Gorai
- Department of Chemistry
- Indian Institute of Technology Guwahati
- , India
| | - Dipankar Bain
- Department of Chemistry
- Indian Institute of Technology Guwahati
- , India
| | - Debasis Manna
- Department of Chemistry
- Indian Institute of Technology Guwahati
- , India
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14
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Mamidi N, Gorai S, Ravi B, Manna D. Physicochemical characterization of diacyltetrol-based lipids consisting of both diacylglycerol and phospholipid headgroups. RSC Adv 2014. [DOI: 10.1039/c4ra02495h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis and physicochemical properties of a family of diacyltetrol-based hybrid lipids, containing both diacylglycerol and anionic lipid headgroups within the same moiety, have been reported for the first time.
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Affiliation(s)
- Narsimha Mamidi
- Department of Chemistry
- Indian Institute of Technology Guwahati
- , India
| | - Sukhamoy Gorai
- Department of Chemistry
- Indian Institute of Technology Guwahati
- , India
| | - Bolledu Ravi
- Department of Chemical Engineering
- Indian Institute of Technology Guwahati
- , India
| | - Debasis Manna
- Department of Chemistry
- Indian Institute of Technology Guwahati
- , India
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