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Yuan C, Chang Y, Mao J, Yu S, Luo W, Xu Y, Thayumanavan S, Dai L. Supramolecular assembly of crosslinkable monomers for degradable and fluorescent polymer nanoparticles. J Mater Chem B 2015; 3:2858-2866. [PMID: 26413298 DOI: 10.1039/c4tb01880j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Intermolecular B-N coordination has been recognized as a promising driving force for molecular self-organization. However, direct utilization of this intermolecular interaction as building bridge for the supramolecular self-assembly of chemical functionalities to form nano-sized architectures remains a daunting challenge. Here, we outline a multiple intermolecular B-N coordination based supramolecular system, where small boronate molecules can be brought together in solution to form nanoparticles with controllable sizes and morphologies. We not only demonstrate the intrinsic switchable fluorescence and the stimuli-responsive capabilities of the designed boronate molecule, but also show that the stabilized or surface functionalized nanoparticles are degradable in response to pH and D-glucose and able to retain the fluorescence features of the boronate molecule. Additionally, the degraded nanoparticles can repair themselves through the reformation of B-N coordination.
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Affiliation(s)
- Conghui Yuan
- College of Materials, Xiamen University, Xiamen, 361005, China
| | - Ying Chang
- College of Materials, Xiamen University, Xiamen, 361005, China
| | - Jie Mao
- College of Materials, Xiamen University, Xiamen, 361005, China
| | - Shirong Yu
- College of Materials, Xiamen University, Xiamen, 361005, China
| | - Weiang Luo
- College of Materials, Xiamen University, Xiamen, 361005, China ; Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - Yiting Xu
- College of Materials, Xiamen University, Xiamen, 361005, China ; Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen, 361005, China
| | - S Thayumanavan
- Department of Chemistry, University of Massachusetts Amherst, MA, 01003
| | - Lizong Dai
- College of Materials, Xiamen University, Xiamen, 361005, China ; Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen, 361005, China
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Vega A, Zarate M, Tlahuext H, Höpfl H. 3-Amino-phenyl-boronic acid monohydrate. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o1260. [PMID: 21579363 PMCID: PMC2979464 DOI: 10.1107/s1600536810015655] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2010] [Accepted: 04/28/2010] [Indexed: 12/03/2022]
Abstract
In the title compound, C(6)H(8)BNO(2)·H(2)O, the almost planar boronic acid mol-ecules (r.m.s. deviation = 0.044 Å) form inversion dimers, linked by pairs of O-H⋯O hydrogen bonds. The water mol-ecules link these dimers into [100] chains by way of O-H⋯O hydrogen bonds, and N-H⋯O links generate (100) sheets.
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Affiliation(s)
- Araceli Vega
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, CP 62209, Cuernavaca, Mexico
| | - Maria Zarate
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, CP 62209, Cuernavaca, Mexico
| | - Hugo Tlahuext
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, CP 62209, Cuernavaca, Mexico
| | - Herbert Höpfl
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, CP 62209, Cuernavaca, Mexico
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Vega A, Luna R, Tlahuext H, Höpfl H. Bis[3-(dihydroxy-boryl)anilinium] sulfate. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o1035-6. [PMID: 21579098 PMCID: PMC2979015 DOI: 10.1107/s1600536810012092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2010] [Accepted: 03/30/2010] [Indexed: 05/26/2023]
Abstract
In the title compound, 2C6H9BNO2+·SO42−, the dihydroxyboryl group of one of the two independent boronic acid molecules participates in (B)O—H⋯OB and N—H⋯OB hydrogen bonds, while the second is involved mainly in the formation of the charge-assisted heterodimeric synthon –B(OH)2⋯−O2SO2−. These aggregates are further connected through N—H⋯Osulfate interactions, forming a complex three-dimensional hydrogen-bonded network.
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Affiliation(s)
- Araceli Vega
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, CP 62209, Cuernavaca, Mexico
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Cheng Y, Li M, Wang S, Peng H, Reid S, Ni N, Fang H, Xu W, Wang B. Carbohydrate biomarkers for future disease detection and treatment. Sci China Chem 2010; 53:3-20. [PMID: 32214994 PMCID: PMC7089153 DOI: 10.1007/s11426-010-0021-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2009] [Accepted: 10/09/2009] [Indexed: 12/28/2022]
Abstract
Carbohydrates are considered as one of the most important classes of biomarkers for cell types, disease states, protein functions, and developmental states. Carbohydrate "binders" that can specifically recognize a carbohydrate biomarker can be used for developing novel types of site specific delivery methods and imaging agents. In this review, we present selected examples of important carbohydrate biomarkers and how they can be targeted for the development of therapeutic and diagnostic agents. Examples are arranged based on disease categories including (1) infectious diseases, (2) cancer, (3) inflammation and immune responses, (4) signal transduction, (5) stem cell transformation, (6) embryo development, and (7) cardiovascular diseases, though some issues cross therapeutic boundaries.
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Affiliation(s)
- YunFeng Cheng
- Department of Chemistry, Georgia State University, Atlanta, GA 30303 USA
| | - MinYong Li
- Department of Medicinal Chemistry, School of Pharmacy, Shandong University, Jinan, 250012 China
| | - ShaoRu Wang
- Department of Chemistry, Georgia State University, Atlanta, GA 30303 USA
| | - HanJing Peng
- Department of Chemistry, Georgia State University, Atlanta, GA 30303 USA
| | - Suazette Reid
- Department of Chemistry, Georgia State University, Atlanta, GA 30303 USA
| | - NanTing Ni
- Department of Chemistry, Georgia State University, Atlanta, GA 30303 USA
| | - Hao Fang
- Department of Medicinal Chemistry, School of Pharmacy, Shandong University, Jinan, 250012 China
| | - WenFang Xu
- Department of Medicinal Chemistry, School of Pharmacy, Shandong University, Jinan, 250012 China
| | - BingHe Wang
- Department of Chemistry, Georgia State University, Atlanta, GA 30303 USA
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Ali S, Heathcote DA, Kroll SHB, Jogalekar AS, Scheiper B, Patel H, Brackow J, Siwicka A, Fuchter MJ, Periyasamy M, Tolhurst RS, Kanneganti SK, Snyder JP, Liotta DC, Aboagye EO, Barrett AGM, Coombes RC. The development of a selective cyclin-dependent kinase inhibitor that shows antitumor activity. Cancer Res 2009; 69:6208-15. [PMID: 19638587 DOI: 10.1158/0008-5472.can-09-0301] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Normal progression through the cell cycle requires the sequential action of cyclin-dependent kinases CDK1, CDK2, CDK4, and CDK6. Direct or indirect deregulation of CDK activity is a feature of almost all cancers and has led to the development of CDK inhibitors as anticancer agents. The CDK-activating kinase (CAK) plays a critical role in regulating cell cycle by mediating the activating phosphorylation of CDK1, CDK2, CDK4, and CDK6. As such, CDK7, which also regulates transcription as part of the TFIIH basal transcription factor, is an attractive target for the development of anticancer drugs. Computer modeling of the CDK7 structure was used to design potential potent CDK7 inhibitors. Here, we show that a pyrazolo[1,5-a]pyrimidine-derived compound, BS-181, inhibited CAK activity with an IC(50) of 21 nmol/L. Testing of other CDKs as well as another 69 kinases showed that BS-181 only inhibited CDK2 at concentrations lower than 1 micromol/L, with CDK2 being inhibited 35-fold less potently (IC(50) 880 nmol/L) than CDK7. In MCF-7 cells, BS-181 inhibited the phosphorylation of CDK7 substrates, promoted cell cycle arrest and apoptosis to inhibit the growth of cancer cell lines, and showed antitumor effects in vivo. The drug was stable in vivo with a plasma elimination half-life in mice of 405 minutes after i.p. administration of 10 mg/kg. The same dose of drug inhibited the growth of MCF-7 human xenografts in nude mice. BS-181 therefore provides the first example of a potent and selective CDK7 inhibitor with potential as an anticancer agent.
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Affiliation(s)
- Simak Ali
- Department of Oncology and Chemistry, Imperial College London, London, United Kingdom.
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