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Synthesis and biological evaluation of baicalein derivatives as potent antitumor agents. 2014

Rong Luo, and Jubo Wang, and Li Zhao, and Na Lu, and Qidong You, and Qinglong Guo, and Zhiyu Li
Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, People's Republic of China.

Baicalein (5,6,7-trihydroxy-2-phenyl-4H-chromen-4-one), a major flavonoid extracted from the root of Scutellaria baicalensis Georgi (Chinese name: Huangqin), showed potent anti-proliferative activity against a broad panel of human cancer cell lines both in vitro and in vivo. A novel series of baicalein derivatives were synthesized by introducing a group to C6-OH and a nitrogen-containing hydrophilic heterocyclic ring to C7-OH via a length of 3 or 4-carbon chain in this study. The in vitro antiproliferative activities of the 30 derivatives against HepG2, A549, BCG-823 cancer cell lines were evaluated. Among them, 10 compounds exhibit more potent cytotoxicity than baicalein against the three cancer cell lines. The most potent compound 9b possesses highest anti-proliferative potency against HepG2, A549, and BCG-823 with an IC50 value of 2.0 μM, 0.8 μM and 3.2 μM, respectively. Preliminary mechanism studies with compound 9b using Annexin V/PI double-staining assay and DAPI staining assay indicated that 9b inhibits tumor cell proliferation potentially through inducing apoptosis.

UI MeSH Term Description Entries
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000970 Antineoplastic Agents Substances that inhibit or prevent the proliferation of NEOPLASMS. Anticancer Agent,Antineoplastic,Antineoplastic Agent,Antineoplastic Drug,Antitumor Agent,Antitumor Drug,Cancer Chemotherapy Agent,Cancer Chemotherapy Drug,Anticancer Agents,Antineoplastic Drugs,Antineoplastics,Antitumor Agents,Antitumor Drugs,Cancer Chemotherapy Agents,Cancer Chemotherapy Drugs,Chemotherapeutic Anticancer Agents,Chemotherapeutic Anticancer Drug,Agent, Anticancer,Agent, Antineoplastic,Agent, Antitumor,Agent, Cancer Chemotherapy,Agents, Anticancer,Agents, Antineoplastic,Agents, Antitumor,Agents, Cancer Chemotherapy,Agents, Chemotherapeutic Anticancer,Chemotherapy Agent, Cancer,Chemotherapy Agents, Cancer,Chemotherapy Drug, Cancer,Chemotherapy Drugs, Cancer,Drug, Antineoplastic,Drug, Antitumor,Drug, Cancer Chemotherapy,Drug, Chemotherapeutic Anticancer,Drugs, Antineoplastic,Drugs, Antitumor,Drugs, Cancer Chemotherapy
D013329 Structure-Activity Relationship The relationship between the chemical structure of a compound and its biological or pharmacological activity. Compounds are often classed together because they have structural characteristics in common including shape, size, stereochemical arrangement, and distribution of functional groups. Relationship, Structure-Activity,Relationships, Structure-Activity,Structure Activity Relationship,Structure-Activity Relationships
D017209 Apoptosis A regulated cell death mechanism characterized by distinctive morphologic changes in the nucleus and cytoplasm, including the endonucleolytic cleavage of genomic DNA, at regularly spaced, internucleosomal sites, i.e., DNA FRAGMENTATION. It is genetically programmed and serves as a balance to mitosis in regulating the size of animal tissues and in mediating pathologic processes associated with tumor growth. Apoptosis, Extrinsic Pathway,Apoptosis, Intrinsic Pathway,Caspase-Dependent Apoptosis,Classic Apoptosis,Classical Apoptosis,Programmed Cell Death,Programmed Cell Death, Type I,Apoptoses, Extrinsic Pathway,Apoptoses, Intrinsic Pathway,Apoptosis, Caspase-Dependent,Apoptosis, Classic,Apoptosis, Classical,Caspase Dependent Apoptosis,Cell Death, Programmed,Classic Apoptoses,Extrinsic Pathway Apoptoses,Extrinsic Pathway Apoptosis,Intrinsic Pathway Apoptoses,Intrinsic Pathway Apoptosis
D044950 Flavanones A group of FLAVONOIDS characterized with a 4-ketone. 2-Phenyl-Benzopyran-4-Ones,2 Phenyl Benzopyran 4 Ones
D045744 Cell Line, Tumor A cell line derived from cultured tumor cells. Tumor Cell Line,Cell Lines, Tumor,Line, Tumor Cell,Lines, Tumor Cell,Tumor Cell Lines
D047309 Flavones A group of 4-keto-FLAVONOIDS. 2-Phenyl-2-Ene-Benzopyran-4-One Compounds
D049109 Cell Proliferation All of the processes involved in increasing CELL NUMBER including CELL DIVISION. Cell Growth in Number,Cellular Proliferation,Cell Multiplication,Cell Number Growth,Growth, Cell Number,Multiplication, Cell,Number Growth, Cell,Proliferation, Cell,Proliferation, Cellular
D056945 Hep G2 Cells A human liver tumor cell line used to study a variety of liver-specific metabolic functions. Cell Line, Hep G2,Cell Line, Hepatoblastoma G2,Hep G2 Cell Line,HepG2 Cells,Hepatoblastoma G2 Cell Line,Cell, Hep G2,Cell, HepG2,Cells, Hep G2,Cells, HepG2,Hep G2 Cell,HepG2 Cell
D018517 Plant Roots The usually underground portions of a plant that serve as support, store food, and through which water and mineral nutrients enter the plant. (From American Heritage Dictionary, 1982; Concise Dictionary of Biology, 1990) Plant Bulbs,Plant Root,Bulb, Plant,Bulbs, Plant,Plant Bulb,Root, Plant,Roots, Plant

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