1
|
Zhang G, Wang A, Zhuang L, Wang X, Song Z, Liang R, Ren M, Long M, Jia X, Li Z, Su S, Wang J, Zhang N, Shen G, Wang B. Enrichment of boron element in follicular fluid and its potential effect on the immune function. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 304:119147. [PMID: 35314206 DOI: 10.1016/j.envpol.2022.119147] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/23/2022] [Accepted: 03/13/2022] [Indexed: 06/14/2023]
Abstract
The blood-follicle barrier (BFB) between the blood and follicular fluid (FF) can maintain the microenvironment balance of oocyte. Boron, an exogenous environmental trace element, has been found to possibly play an important role in oocyte maturation. This study aimed to examine the distribution characteristics of boron across the BFB and find the potential effect of boron on FF microenvironment. We analyzed the concentration of boron in paired FF and serum collected from 168 women undergoing in vitro fertilization and embryo transfer in Beijing City and Shandong Province, China. To explore the potential health impact of boron enrichment in oocyte maturation, a global proteomics analysis was conducted to tentatively correlate the protein levels with the boron enrichment. Interestingly, the results showed that the concentration of boron in FF (34.5 ng/mL) was significantly higher than that in serum (22.0 ng/mL), with a median concentration ratio of 1.52. Likewise, the concentrations of boron in FF and serum were positively correlated (r = 0.446), suggesting that boron concentration in serum can represent its concentration in follicular fluid to a large extent.. This is the first time to observe the enrichment of boron in the FF to our knowledge. It is interesting to observe a total of 13 proteins, which mainly belong to immunoglobulin class, were positively correlated with boron concentration in FF. We concluded that boron, as one environmental trace element, was enriched in FF from blood validated by two area in north china, which may be involved in an increased level of immune processes of immunoglobulins.
Collapse
Affiliation(s)
- Guohuan Zhang
- Institute of Reproductive and Child Health, School of Public Health, Peking University, Beijing, 100191, PR China; Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing, 100191, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China
| | - Anni Wang
- Department of Neurosurgery, General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - Lili Zhuang
- Reproductive Medicine Centre, Yuhuangding Hospital of Yantai, Affiliated Hospital of Qingdao University, Yantai, 264000, China
| | - Xikai Wang
- School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Ziyi Song
- Reproductive Medical Center, Peking University People's Hospital, Beijing, 100044, China
| | - Rong Liang
- Reproductive Medical Center, Peking University People's Hospital, Beijing, 100044, China
| | - Mengyuan Ren
- Institute of Reproductive and Child Health, School of Public Health, Peking University, Beijing, 100191, PR China; Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing, 100191, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China
| | - Manman Long
- Institute of Reproductive and Child Health, School of Public Health, Peking University, Beijing, 100191, PR China; Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing, 100191, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China
| | - Xiaoqian Jia
- Institute of Reproductive and Child Health, School of Public Health, Peking University, Beijing, 100191, PR China; Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing, 100191, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China
| | - Zhiwen Li
- Institute of Reproductive and Child Health, School of Public Health, Peking University, Beijing, 100191, PR China; Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing, 100191, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China
| | - Shu Su
- Institute of Reproductive and Child Health, School of Public Health, Peking University, Beijing, 100191, PR China; Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing, 100191, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China
| | - Jiahao Wang
- China Center for Health Development Studies, School of Public Health, Peking University, Beijing, 100191, China
| | - Nan Zhang
- Gynecology Department, Peking University Cancer Hospital and Institute, Key Laboratory of Carcinogenesis and Translational Research, Beijing, 100871, China
| | - Guofeng Shen
- College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
| | - Bin Wang
- Institute of Reproductive and Child Health, School of Public Health, Peking University, Beijing, 100191, PR China; Key Laboratory of Reproductive Health, National Health and Family Planning Commission of the People's Republic of China, Beijing, 100191, China; Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, 100191, China.
| |
Collapse
|
2
|
Romero-Aguilar KS, Arciniega-Martínez IM, Farfán-García ED, Campos-Rodríguez R, Reséndiz-Albor AA, Soriano-Ursúa MA. Effects of boron-containing compounds on immune responses: review and patenting trends. Expert Opin Ther Pat 2019; 29:339-351. [PMID: 31064237 DOI: 10.1080/13543776.2019.1612368] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 04/24/2019] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Boron-containing compounds induce effects on immune responses. Such effects are interesting to the biomedical field for the development of therapeutic tools to modulate the immune system. AREAS COVERED The scope of BCC use to modify immune responses is expanding, mainly with regard to inflammatory diseases. The information was organized to demonstrate the breadth of reported effects. BCCs act as modulators of innate and adaptive immunity, with the former including regulation of cluster differentiation and cytokine production. In addition, BCCs exert effects on inflammation induced by infectious and noninfectious agents, and there are also reports regarding their effects on mechanisms involving hypersensitivity and transplants. Finally, the authors discuss the beneficial effects of BCCs on pathologies involving various targets and mechanisms. EXPERT OPINION Some BCCs are currently used as drugs in humans. The mechanisms by which these BCCs modulate immune responses, as well as the required structure-activity relationship for each observed mechanism of action, should be clarified. The former will allow for the development of improved immunomodulatory drugs with extensive applications in medicine. Patenting trends involve claims concerning the synthesis and actions of identified molecules with a defined profile regarding cytokines, cell differentiation, proliferation, and antibody production.
Collapse
Affiliation(s)
- Karla S Romero-Aguilar
- a Departamento de Fisiología, Sección de Estudios de Posgrado e Investigación , Escuela Superior de Medicina del Instituto Politécnico Nacional , México City , México
- b Departamento de Inmunología de Mucosas, Sección de Estudios de Posgrado e Investigación , Escuela Superior de Medicina del Instituto Politécnico Nacional , México City , México
| | - Ivonne M Arciniega-Martínez
- b Departamento de Inmunología de Mucosas, Sección de Estudios de Posgrado e Investigación , Escuela Superior de Medicina del Instituto Politécnico Nacional , México City , México
| | - Eunice D Farfán-García
- a Departamento de Fisiología, Sección de Estudios de Posgrado e Investigación , Escuela Superior de Medicina del Instituto Politécnico Nacional , México City , México
| | - Rafael Campos-Rodríguez
- b Departamento de Inmunología de Mucosas, Sección de Estudios de Posgrado e Investigación , Escuela Superior de Medicina del Instituto Politécnico Nacional , México City , México
| | - Aldo A Reséndiz-Albor
- b Departamento de Inmunología de Mucosas, Sección de Estudios de Posgrado e Investigación , Escuela Superior de Medicina del Instituto Politécnico Nacional , México City , México
| | - Marvin A Soriano-Ursúa
- a Departamento de Fisiología, Sección de Estudios de Posgrado e Investigación , Escuela Superior de Medicina del Instituto Politécnico Nacional , México City , México
| |
Collapse
|
3
|
Nocentini A, Supuran CT, Winum JY. Benzoxaborole compounds for therapeutic uses: a patent review (2010- 2018). Expert Opin Ther Pat 2018; 28:493-504. [PMID: 29727210 DOI: 10.1080/13543776.2018.1473379] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
INTRODUCTION Benzoxaborole is a versatile boron-heterocyclic scaffold which has found in the last 10 years a broad spectrum of applications in medicinal chemistry, due to its physicochemical and drug-like properties. Use of benzoxaborole moiety in the design of compounds led to the discovery of new classes of anti-bacterial, anti-fungal, anti-protozoal, anti-viral as well as anti-inflammatory agents with interesting drug development perspectives. AREAS COVERED This article reviews the patent literature as well as chemistry literature during the period 2010-2018 where in several benzoxaborole derivatives with therapeutic options were reported. EXPERT OPINION Two benzoxaborole derivatives are already clinically used for the treatment of onychomycosis (tavaborole) and atopic dermatitis (crisaborole), with several others in various phases of clinical trials. By inhibiting enzymes essential in the life cycle of fungal, protozoan, bacterial and viral pathogens, it is probable that other compounds may soon enter the armamentarium of anti-infective agents. On the other hand, phosphodiesterase 4 seems to be the human target responsible of the anti-inflammatory action of some benzoxaboroles. The chemical versatility, peculiar mechanism of action related to the electron deficient nature of the boron atom, and ease of preparation make benzoxaboroles a highly interesting field for the pharmaceutical industry.
Collapse
Affiliation(s)
- Alessio Nocentini
- a Department of Neurofarba, Section of Pharmaceutical and Nutraceutical Sciences , University of Florence, Polo Scientifico , Firenze , Italy.,b Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS, ENSCM , Université de Montpellier , Montpellier , France
| | - Claudiu T Supuran
- a Department of Neurofarba, Section of Pharmaceutical and Nutraceutical Sciences , University of Florence, Polo Scientifico , Firenze , Italy
| | - Jean-Yves Winum
- b Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS, ENSCM , Université de Montpellier , Montpellier , France
| |
Collapse
|
4
|
Dong C, Virtucio C, Zemska O, Baltazar G, Zhou Y, Baia D, Jones-Iatauro S, Sexton H, Martin S, Dee J, Mak Y, Meewan M, Rock F, Akama T, Jarnagin K. Treatment of Skin Inflammation with Benzoxaborole Phosphodiesterase Inhibitors: Selectivity, Cellular Activity, and Effect on Cytokines Associated with Skin Inflammation and Skin Architecture Changes. J Pharmacol Exp Ther 2016; 358:413-22. [PMID: 27353073 DOI: 10.1124/jpet.116.232819] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 06/23/2016] [Indexed: 12/18/2022] Open
Abstract
Psoriasis and atopic dermatitis are skin diseases affecting millions of patients. Here, we characterize benzoxaborole phosphodiesterase (PDE)-4 inhibitors, a new topical class that has demonstrated therapeutic benefit for psoriasis and atopic dermatitis in phase 2 or phase 3 studies. Crisaborole [AN2728, 4-((1-hydroxy-1,3-dihydrobenzo[c][1,2]oxaborol-5-yl)oxy)benzonitrile], compd2 [2-ethoxy-6-((1-hydroxy-1,3-dihydrobenzo[c][1,2]oxaborol-5-yl)oxy)nicotinonitrile], compd3 [6-((1-hydroxy-1,3-dihydrobenzo[c][1,2]oxaborol-5-yl)oxy)-2-(2-isopropoxyethoxy)nicotinonitrile], and compd4 [5-chloro-6-((1-hydroxy-1,3-dihydrobenzo[c][1,2]oxaborol-5-yl)oxy)-2-((4-oxopentyl)oxy)nicotinonitrile] are potent PDE4 inhibitors with similar affinity for PDE4 isoforms and equivalent inhibition on the catalytic domain and the full-length enzyme. These benzoxaboroles are less active on other PDE isozymes. Compd4 binds to the catalytic domain of PDE4B2 with the oxaborole group chelating the catalytic bimetal and overlapping with the phosphate in cAMP during substrate hydrolysis, and the interaction extends into the adenine pocket. In cell culture, benzoxaborole PDE4 inhibitors suppress the release of tumor necrosis factor-α, interleukin (IL)-23, IL-17, interferon-γ, IL-4, IL-5, IL-13, and IL-22, and these cytokines contribute to the pathologic changes in skin structure and barrier functions as well as immune dysregulation in atopic dermatitis and psoriasis. Treatment with compd3 or N(6),2'-O-dibutyryladenosine 3',5'-cyclic monophosphate increases cAMP response element binding protein phosphorylation in human monocytes and decreases extracellular signal-regulated kinase phosphorylation in human T cells; these changes lead to reduced cytokine production and are among the mechanisms by which compd3 blocks cytokine release. Topical compd3 penetrates the skin and suppresses phorbol myristate acetate-induced IL-13, IL-22, IL-17F, and IL-23 transcription and calcipotriol-induced thymic stromal lymphopoietin expression in mouse skin. Skin thinning is a major dose-limiting side effect of glucocorticoids. By contrast, repeated application of compd3 did not thin mouse skin. These findings show the potential benefits and safety of benzoxaborole PDE4 inhibitors for the treatment of psoriasis and atopic dermatitis.
Collapse
MESH Headings
- Administration, Topical
- Animals
- Boron Compounds/administration & dosage
- Boron Compounds/pharmacology
- Boron Compounds/therapeutic use
- Bridged Bicyclo Compounds, Heterocyclic/administration & dosage
- Bridged Bicyclo Compounds, Heterocyclic/pharmacology
- Bridged Bicyclo Compounds, Heterocyclic/therapeutic use
- Catalytic Domain
- Cyclic AMP Response Element-Binding Protein/metabolism
- Cyclic Nucleotide Phosphodiesterases, Type 4/chemistry
- Cyclic Nucleotide Phosphodiesterases, Type 4/metabolism
- Cytokines/metabolism
- Dermatitis, Atopic/drug therapy
- Dermatitis, Atopic/metabolism
- Dermatitis, Atopic/pathology
- Female
- Gene Expression Regulation/drug effects
- Leukocytes/drug effects
- Leukocytes/metabolism
- Mice
- Mitogen-Activated Protein Kinase 1/metabolism
- Mitogen-Activated Protein Kinase 3/metabolism
- Models, Molecular
- Phosphodiesterase 4 Inhibitors/administration & dosage
- Phosphodiesterase 4 Inhibitors/pharmacology
- Phosphodiesterase 4 Inhibitors/therapeutic use
- Phosphorylation/drug effects
- Psoriasis/drug therapy
- Psoriasis/metabolism
- Psoriasis/pathology
- Skin/drug effects
- Skin/metabolism
- Skin/pathology
- Thymic Stromal Lymphopoietin
Collapse
Affiliation(s)
- Chen Dong
- Anacor Pharmaceuticals, Inc., Palo Alto, California
| | | | - Olga Zemska
- Anacor Pharmaceuticals, Inc., Palo Alto, California
| | | | - Yasheen Zhou
- Anacor Pharmaceuticals, Inc., Palo Alto, California
| | - Diogo Baia
- Anacor Pharmaceuticals, Inc., Palo Alto, California
| | | | - Holly Sexton
- Anacor Pharmaceuticals, Inc., Palo Alto, California
| | | | - Joshua Dee
- Anacor Pharmaceuticals, Inc., Palo Alto, California
| | - Yvonne Mak
- Anacor Pharmaceuticals, Inc., Palo Alto, California
| | | | | | | | | |
Collapse
|
5
|
Boron Induces Lymphocyte Proliferation and Modulates the Priming Effects of Lipopolysaccharide on Macrophages. PLoS One 2016; 11:e0150607. [PMID: 26934748 PMCID: PMC4774930 DOI: 10.1371/journal.pone.0150607] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Accepted: 02/17/2016] [Indexed: 12/26/2022] Open
Abstract
Chemical mediators of inflammation (CMI) are important in host defense against infection. The reduced capacity of host to induce the secretion of these mediators following infection is one of the factors in host susceptibility to infection. Boron, which has been suggested for its role in infection, is reported in this study to increase lymphocyte proliferation and the secretion of CMI by the lipopolysaccharide (LPS)-stimulated peritoneal macrophages in BALB/c mice. Boron was administered to mice orally as borax at different doses for 10 consecutive days, followed by the stimulation of animals with ovalbumin and isolation of splenocytes for proliferation assay. The lymphocyte subsets were determined by flow cytometry in spleen cell suspension. The mediators of inflammation, TNF-α, IL-6, IL-1β and nitric oxide (NO), were measured in culture supernatant of LPS-primed macrophages isolated from borax treated mice. TNF and ILs were measured by ELISA. NO was determined by Griess test. The expression of inducible nitric oxide synthase (iNOS) in macrophages was studied by confocal microscopy. Results showed a significant increase in T and B cell populations, as indicated by an increase in CD4 and CD19, but not CD8, cells. Boron further stimulated the secretion of TNF-α, IL-6, IL-1β, NO and the expression of iNOS by the LPS-primed macrophages. The effect was dose dependent and most significant at a dose level of 4.6 mg/kg b. wt. Taken together, the study concludes that boron at physiological concentration induces lymphocyte proliferation and increases the synthesis and secretion of pro-inflammatory mediators by the LPS-primed macrophages, more specifically the M1 macrophages, possibly acting through Toll-like receptor. The study implicates boron as a regulator of the immune and inflammatory reactions and macrophage polarization, thus playing an important role in augmenting host defense against infection, with possible role in cancer and other diseases.
Collapse
|
6
|
Differential induction of inflammatory cytokines and reactive oxygen species in murine peritoneal macrophages and resident fresh bone marrow cells by acute staphylococcus aureus infection: contribution of toll-like receptor 2 (TLR2). Inflammation 2015; 38:224-44. [PMID: 25266881 DOI: 10.1007/s10753-014-0026-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Among the known Toll-like receptors (TLRs), Toll-like receptor 2 (TLR2) is a key sensor for detecting Staphylococcus aureus invasion. But the function of TLR2 during S. aureus infection in different cell populations is unclear. Two different cell subtypes were chosen to study the interaction of S. aureus with TLR2 because macrophages are extremely different from one compartment to another and their capacity to respond to live bacteria or bacterial products differs from one site to another. The contribution of TLR2 to the host innate response against acute live S. aureus infection and heat-killed S. aureus (HKSA) using anti-TLR2 antibody in murine peritoneal macrophages and resident fresh bone marrow cells has been investigated here. TLR2 blocking before infection induces the release of interleukin (IL)-10 by macrophages thereby inhibiting excessive production of oxidants by activating antioxidant enzymes. TLR2-blocked peritoneal macrophages showed impaired release of tumor necrosis factor-alpha (TNF-α), interferon-gamma (IFN-γ) and IL-6 in response to both live and heat-killed S. aureus infection except bone marrow cells. TLR2-mediated free radical production and killing of S. aureus were modulated by TLR2 blocking in peritoneal macrophages and resident bone marrow cells. This study supported that S. aureus persists in resident bone marrow cells in a state of quiescence.
Collapse
|
7
|
Adamczyk-Woźniak A, Borys KM, Sporzyński A. Recent Developments in the Chemistry and Biological Applications of Benzoxaboroles. Chem Rev 2015; 115:5224-47. [DOI: 10.1021/cr500642d] [Citation(s) in RCA: 154] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
| | - Krzysztof M. Borys
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Andrzej Sporzyński
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| |
Collapse
|
8
|
Bishayi B, Bandyopadhyay D, Majhi A, Adhikary R. Possible Role of Toll-like Receptor-2 in the Intracellular Survival ofStaphylococcus aureusin Murine Peritoneal Macrophages: Involvement of Cytokines and Anti-Oxidant Enzymes. Scand J Immunol 2014; 80:127-43. [PMID: 24846691 DOI: 10.1111/sji.12195] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 05/13/2014] [Indexed: 11/29/2022]
Affiliation(s)
- B. Bishayi
- Department of Physiology, Immunology Laboratory; University of Calcutta; University Colleges of Science and Technology; Calcutta West Bengal India
| | - D. Bandyopadhyay
- Department of Physiology, Oxidative Stress and Free Radical Biology Laboratory; University of Calcutta; University Colleges of Science and Technology; Calcutta West Bengal India
| | - A. Majhi
- Department of Physiology, Immunology Laboratory; University of Calcutta; University Colleges of Science and Technology; Calcutta West Bengal India
| | - R. Adhikary
- Department of Physiology, Immunology Laboratory; University of Calcutta; University Colleges of Science and Technology; Calcutta West Bengal India
| |
Collapse
|
9
|
Nagar J, Ranade S, Kamath V, Singh S, Karunanithi P, Subramani S, Venkatesh K, Srivastava R, Dudhgaonkar S, Vikramadithyan RK. Therapeutic potential of chloroquine in a murine model of inflammatory bowel disease. Int Immunopharmacol 2014; 21:328-35. [PMID: 24859061 DOI: 10.1016/j.intimp.2014.05.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 05/06/2014] [Accepted: 05/06/2014] [Indexed: 12/30/2022]
Abstract
Inflammatory bowel disease (IBD) is an idiopathic chronic inflammation of the gastrointestinal tract which is mainly caused by dysregulated gut immune response to commensal flora. Very limited treatment options with marginal efficacy are available along with surgery which has high risk of reoccurrence. As both innate and adaptive immune responses have been found altered in IBD, a good therapeutic strategy could be to restrict both of them under chronic inflammatory conditions. Effect of chloroquine on TLR9 signaling is well reported, while there are limited studies on non-endosomal TLRs as well as T cell responses. Hence, we studied its effect on other TLRs as well as T cell response along with testing it as a potential therapeutics in IBD using murine preclinical colitis model. Chloroquine significantly suppressed the TLR2 as well as TLR9 signaling in both in vitro as well as in vivo experimental settings, while it had no effect on TLR4 pathway. It also suppressed the T cell cytokine and proliferative responses. In, DSS-induced murine colitis model, chloroquine administration, significantly improved body weight loss, colon length shortening, tissue damage and inflammatory cell infiltration. Based on our findings in preclinical murine model of IBD, chloroquine has the potential to be considered as a therapeutic option in clinics through inhibition of diverse TLR and T cell responses.
Collapse
Affiliation(s)
- Jignesh Nagar
- Syngene International Limited, Biology (In Vivo), Biocon-Bristol Myers Squibb Research & Development Center, Biocon Park, Jigani Link Road, Bommasandra IV, Bangalore 560 099, India
| | - Sourabh Ranade
- Syngene International Limited, Biology (In Vivo), Biocon-Bristol Myers Squibb Research & Development Center, Biocon Park, Jigani Link Road, Bommasandra IV, Bangalore 560 099, India
| | - Vinay Kamath
- Syngene International Limited, Biology (In Vivo), Biocon-Bristol Myers Squibb Research & Development Center, Biocon Park, Jigani Link Road, Bommasandra IV, Bangalore 560 099, India
| | - Sharad Singh
- Syngene International Limited, Biology (In Vivo), Biocon-Bristol Myers Squibb Research & Development Center, Biocon Park, Jigani Link Road, Bommasandra IV, Bangalore 560 099, India
| | - Preethi Karunanithi
- Syngene International Limited, Biology (In Vivo), Biocon-Bristol Myers Squibb Research & Development Center, Biocon Park, Jigani Link Road, Bommasandra IV, Bangalore 560 099, India
| | - Siva Subramani
- Syngene International Limited, Biology (In Vivo), Biocon-Bristol Myers Squibb Research & Development Center, Biocon Park, Jigani Link Road, Bommasandra IV, Bangalore 560 099, India
| | - Kamala Venkatesh
- Syngene International Limited, Biology (In Vivo), Biocon-Bristol Myers Squibb Research & Development Center, Biocon Park, Jigani Link Road, Bommasandra IV, Bangalore 560 099, India
| | - Ratika Srivastava
- Syngene International Limited, Biology (In Vivo), Biocon-Bristol Myers Squibb Research & Development Center, Biocon Park, Jigani Link Road, Bommasandra IV, Bangalore 560 099, India
| | - Shailesh Dudhgaonkar
- Syngene International Limited, Biology (In Vivo), Biocon-Bristol Myers Squibb Research & Development Center, Biocon Park, Jigani Link Road, Bommasandra IV, Bangalore 560 099, India
| | - Reeba Kannimel Vikramadithyan
- Bristol-Myers Squibb India Pvt. Ltd., Biology (In Vivo), Biocon-Bristol Myers Squibb Research & Development Center, Biocon Park, Jigani Link Road, Bommasandra IV, Bangalore 560 099, India.
| |
Collapse
|
10
|
Akama T, Dong C, Virtucio C, Sullivan D, Zhou Y, Zhang YK, Rock F, Freund Y, Liu L, Bu W, Wu A, Fan XQ, Jarnagin K. Linking phenotype to kinase: identification of a novel benzoxaborole hinge-binding motif for kinase inhibition and development of high-potency rho kinase inhibitors. J Pharmacol Exp Ther 2013; 347:615-25. [PMID: 24049062 DOI: 10.1124/jpet.113.207662] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Benzoxaboroles are a novel class of drug-like compounds that have been rich sources of novel inhibitors for various enzymes and of new drugs. While examining benzoxaborole activity in phenotypic screens, our attention was attracted by the (aminomethylphenoxy)benzoxaborole family, which potently inhibited Toll-like receptor-stimulated cytokine secretion from leukocytes. After considering their structure-activity relationships and the central role of kinases in leukocyte biology, we performed a kinome-wide screen to investigate the members of the (aminomethylphenoxy)benzoxaborole family. This technique identified Rho-activated kinase (ROCK) as a target. We showed competitive behavior, with respect to ATP, and then determined the ROCK2-drug cocrystal structure. The drug occupies the ATP site in which the oxaborole moiety provides hydrogen bond donors and acceptors to the hinge, and the aminomethyl group interacts with the magnesium/ATP-interacting aspartic acid common to protein kinases. The series exhibits excellent selectivity against most of the kinome, with greater than 15-fold selectivity against the next best member of the AGC protein kinase subfamily. Medicinal chemistry efforts with structure-based design resulted in a compound with a Ki of 170 nM. Cellular studies revealed strong enzyme inhibition rank correlation with suppression of intracellular phosphorylation of a ROCK substrate. The biochemical potencies of these compounds also translated to functional activity, causing smooth muscle relaxation in rat aorta and guinea pig trachea. The series exhibited oral availability and one member reduced rat blood pressure, consistent with ROCK's role in smooth muscle contraction. Thus, the benzoxaborole moiety represents a novel hinge-binding kinase scaffold that may have potential for therapeutic use.
Collapse
|
11
|
Akama T, Dong C, Virtucio C, Freund YR, Chen D, Orr MD, Jacobs RT, Zhang YK, Hernandez V, Liu Y, Wu A, Bu W, Liu L, Jarnagin K, Plattner JJ. Discovery and structure–activity relationships of 6-(benzoylamino)benzoxaboroles as orally active anti-inflammatory agents. Bioorg Med Chem Lett 2013; 23:5870-3. [DOI: 10.1016/j.bmcl.2013.08.096] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 08/21/2013] [Accepted: 08/26/2013] [Indexed: 01/08/2023]
|
12
|
Akama T, Virtucio C, Dong C, Kimura R, Zhang YK, Nieman JA, Sharma R, Lu X, Sales M, Singh R, Wu A, Fan XQ, Liu L, Plattner JJ, Jarnagin K, Freund YR. Structure–activity relationships of 6-(aminomethylphenoxy)-benzoxaborole derivatives as anti-inflammatory agent. Bioorg Med Chem Lett 2013; 23:1680-3. [DOI: 10.1016/j.bmcl.2013.01.072] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Revised: 01/12/2013] [Accepted: 01/16/2013] [Indexed: 10/27/2022]
|