1-Hydroxy-2-Naphthaldehyde

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Feng Yang - One of the best experts on this subject based on the ideXlab platform.

  • developing anticancer ferric prodrugs based on the n donor residues of human serum albumin carrier iia subdomain
    Journal of Medicinal Chemistry, 2016
    Co-Authors: Yi Gou, Yao Zhang, Kun Yang, Shifang Chen, Li Liu, Tao Wang, Wei Zhang, Feng Yang
    Abstract:

    To improve the selectivity, delivery, and activity of ferric (Fe) anticancer agents, we design prodrugs based on N-donor residues of the human serum albumin (HSA) carrier IIA subdomain. We synthesized six Fe(III) compounds derived from 2-hydroxy-1-naphthaldehyde thiosemicarbazone (7–12). HSA complex structure revealed that Fe compound binds to the hydrophobic cavity in the HSA IIA subdomain. Lys199 and His242 of HSA replace the two Cl atoms of Fe compound, coordinating with Fe3+. In vivo data revealed that compound 12 and HSA-12 complex inhibit the growth of the liver tumor and that the HSA-12 complex has stronger targeting ability and therapeutic efficacy than compound 12 alone. In addition, our results have shown that compound 12 and HSA-12 complex induce Bel-7402 cell death possible by several mechanisms.

  • developing anticancer copper ii pro drugs based on the nature of cancer cells and the human serum albumin carrier iia subdomain
    Molecular Pharmaceutics, 2015
    Co-Authors: Yi Gou, Yao Zhang, Feng Yang, Joshuapaul Ajayi, Zuping Zhou, Hong Liang
    Abstract:

    To synergistically enhance the selectivity and efficiency of anticancer copper drugs, we proposed and built a model to develop anticancer copper pro-drugs based on the nature of human serum albumin (HSA) IIA subdomain and cancer cells. Three copper(II) compounds of a 2-hydroxy-1-naphthaldehyde benzoyl hydrazone Schiff-base ligand in the presence pyridine, imidazole, or indazole ligands were synthesized (C1-C3). The structures of three HSA complexes revealed that the Cu compounds bind to the hydrophobic cavity in the HSA IIA subdomain. Among them, the pyridine and imidazole ligands of C1 and C2 are replaced by Lys199, and His242 directly coordinates with Cu(II). The indazole and Br ligands of C3 are replaced by Lys199 and His242, respectively. Compared with the Cu(II) compounds alone, the HSA complexes enhance cytotoxicity in MCF-7 cells approximately 3-5-fold, but do not raise cytotoxicity levels in normal cells in vitro through selectively accumulating in cancer cells to some extent. We find that the HSA complex has a stronger capacity for cell cycle arrest in the G2/M phase of MCF-7 by targeting cyclin-dependent kinase 1 (CDK1) and down-regulating the expression of CDK1 and cyclin B1. Moreover, the HSA complex promotes MCF-7 cell apoptosis possibly through the intrinsic reactive oxygen species (ROS) mediated mitochondrial pathway, accompanied by the regulation of Bcl-2 family proteins.

Yi Gou - One of the best experts on this subject based on the ideXlab platform.

  • developing anticancer ferric prodrugs based on the n donor residues of human serum albumin carrier iia subdomain
    Journal of Medicinal Chemistry, 2016
    Co-Authors: Yi Gou, Yao Zhang, Kun Yang, Shifang Chen, Li Liu, Tao Wang, Wei Zhang, Feng Yang
    Abstract:

    To improve the selectivity, delivery, and activity of ferric (Fe) anticancer agents, we design prodrugs based on N-donor residues of the human serum albumin (HSA) carrier IIA subdomain. We synthesized six Fe(III) compounds derived from 2-hydroxy-1-naphthaldehyde thiosemicarbazone (7–12). HSA complex structure revealed that Fe compound binds to the hydrophobic cavity in the HSA IIA subdomain. Lys199 and His242 of HSA replace the two Cl atoms of Fe compound, coordinating with Fe3+. In vivo data revealed that compound 12 and HSA-12 complex inhibit the growth of the liver tumor and that the HSA-12 complex has stronger targeting ability and therapeutic efficacy than compound 12 alone. In addition, our results have shown that compound 12 and HSA-12 complex induce Bel-7402 cell death possible by several mechanisms.

  • developing anticancer copper ii pro drugs based on the nature of cancer cells and the human serum albumin carrier iia subdomain
    Molecular Pharmaceutics, 2015
    Co-Authors: Yi Gou, Yao Zhang, Feng Yang, Joshuapaul Ajayi, Zuping Zhou, Hong Liang
    Abstract:

    To synergistically enhance the selectivity and efficiency of anticancer copper drugs, we proposed and built a model to develop anticancer copper pro-drugs based on the nature of human serum albumin (HSA) IIA subdomain and cancer cells. Three copper(II) compounds of a 2-hydroxy-1-naphthaldehyde benzoyl hydrazone Schiff-base ligand in the presence pyridine, imidazole, or indazole ligands were synthesized (C1-C3). The structures of three HSA complexes revealed that the Cu compounds bind to the hydrophobic cavity in the HSA IIA subdomain. Among them, the pyridine and imidazole ligands of C1 and C2 are replaced by Lys199, and His242 directly coordinates with Cu(II). The indazole and Br ligands of C3 are replaced by Lys199 and His242, respectively. Compared with the Cu(II) compounds alone, the HSA complexes enhance cytotoxicity in MCF-7 cells approximately 3-5-fold, but do not raise cytotoxicity levels in normal cells in vitro through selectively accumulating in cancer cells to some extent. We find that the HSA complex has a stronger capacity for cell cycle arrest in the G2/M phase of MCF-7 by targeting cyclin-dependent kinase 1 (CDK1) and down-regulating the expression of CDK1 and cyclin B1. Moreover, the HSA complex promotes MCF-7 cell apoptosis possibly through the intrinsic reactive oxygen species (ROS) mediated mitochondrial pathway, accompanied by the regulation of Bcl-2 family proteins.

Karuppannan Natarajan - One of the best experts on this subject based on the ideXlab platform.

M. I. Choudhary - One of the best experts on this subject based on the ideXlab platform.

  • tyrosinase inhibitory lignans from the methanol extract of the roots of vitex negundo linn and their structure activity relationship
    Phytomedicine, 2006
    Co-Authors: Abdul Malik, Aqeel Ahmad, Mahmud Tareq Hassan Khan, Sher Bahadar Khan, M. I. Choudhary
    Abstract:

    Abstract Phytochemical investigation of the methanol extract of Vitex negundo afforded eight lignans; negundin A 1 , negundin B 2 , 6-hydroxy-4-(4-hydroxy-3-methoxy)-3-hydroxymethyl-7-methoxy-3,4-dihydro-2-naphthaledehyde 3 , vitrofolal E 4 , (+)-lyoniresinol 5 , (+)-lyoniresinol-3 α - O - β - d -glucoside 6 , (+)-(−)-pinoresinol 7 , and (+)-diasyringaresinol 8 . The structures of these compounds were elucidated unambiguously by spectroscopic methods including 1D and 2D NMR analysis and also by comparing experimental data with literature data. The tyrosinase inhibitory potency of these compounds has been evaluated and attempts to justify their structure–activity relationships have been made in the present work. The compound 5 was found to be the most potent (IC 50 =3.21 μM) while other compounds demonstrated moderate to potent inhibitions. It was found that the substitution of functional group(s) at C-2 and C-3 positions and the presence of the –CH 2 OH group plays a vital role in the potency of the compounds. The compound 5 can act as a potential lead molecule to develop new drugs for the treatment of hyperpigmentation associated with the high production of melanocytes.

  • tyrosinase inhibitory lignans from the methanol extract of the roots of vitex negundo linn and their structure activity relationship
    Phytomedicine, 2006
    Co-Authors: Abdul Malik, Aqeel Ahmad, Mahmud Tareq Hassan Khan, Sher Bahadar Khan, M. I. Choudhary
    Abstract:

    Phytochemical investigation of the methanol extract of Vitex negundo afforded eight lignans; negundin A 1, negundin B 2, 6-hydroxy-4-(4-hydroxy-3-methoxy)-3-hydroxymethyl-7-methoxy-3,4-dihydro-2-naphthaledehyde 3, vitrofolal E 4, (+)-lyoniresinol 5, (+)-lyoniresinol-3alpha-O-beta-d-glucoside 6, (+)-(-)-pinoresinol 7, and (+)-diasyringaresinol 8. The structures of these compounds were elucidated unambiguously by spectroscopic methods including 1D and 2D NMR analysis and also by comparing experimental data with literature data. The tyrosinase inhibitory potency of these compounds has been evaluated and attempts to justify their structure-activity relationships have been made in the present work. The compound 5 was found to be the most potent (IC(50)=3.21 microM) while other compounds demonstrated moderate to potent inhibitions. It was found that the substitution of functional group(s) at C-2 and C-3 positions and the presence of the -CH(2)OH group plays a vital role in the potency of the compounds. The compound 5 can act as a potential lead molecule to develop new drugs for the treatment of hyperpigmentation associated with the high production of melanocytes.

Laiwan Foong - One of the best experts on this subject based on the ideXlab platform.