| Full text | |
| Author(s): Show less - |
Pinto, Francisco C. L.
[1]
;
Silveira, Edilberto R.
[1]
;
Vasconcelos, Ana Caroline L.
[2]
;
Florencio, Katharine G. D.
[2]
;
Oliveira, Francisca A. S.
[2]
;
Sahm, Bianca B.
[3]
;
Costa-Lotufo, V, Leticia
;
Bauermeister, Anelize
[4, 5]
;
Lopes, Norberto P.
[4]
;
Wilke, V, Diego
;
Pessoa, Otilia D. L.
[1]
Total Authors: 11
|
| Affiliation: | [1] Univ Fed Ceara, Dept Quim Organ & Inorgan, BR-60021970 Fortaleza, Ceara - Brazil
[2] V, Univ Fed Ceara, Dept Fisiol & Farmacol, Nacl Pesquisa & Desenvolvimento Med, BR-60430275 Fortaleza, Ceara - Brazil
[3] Univ Sao Paulo, Inst Ciencias Biomed, Dept Farmacol, BR-05508900 Sao Paulo, SP - Brazil
[4] Univ Sao Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Dept Fis & Quim, BR-14040903 Ribeirao Preto, SP - Brazil
[5] Costa-Lotufo, Leticia, V, Univ Sao Paulo, Inst Ciencias Biomed, Dept Farmacol, BR-05508900 Sao Paulo, SP - Brazil
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | Journal of the Brazilian Chemical Society; v. 31, n. 1, p. 143-152, JAN 2020. |
| Web of Science Citations: | 0 |
| Abstract | |
A Streptomyces sp. (BRA-384) was selected among nine strains of bacteria isolated from the zoanthids Palythoa caribaeorum due to the high cytotoxic activity presented by its EtOAc extract (inhibitory concentration mean (IC50) of 2 ng mL-1) against colon cancer cell line. From the EtOAc extract of BRA-384 three new chemical entities (A6, A7 and A8) and one dextrorotatory chromomycin (A5), a promising class of anticancer compounds, were identified. The cytotoxicity of chromomycins A5 to A8 was tested against five tumor cell lines (HCT 116 (human colon adenocarcinoma), MCF-7 (human breast carcinoma), PC-3M (human metastatic prostate cancer), 501-mel (human metastatic melanoma) and MM200 (metastatic melanoma)). All chromomycins were highly potent showing IC50 values from 0.2 to 133 nM. Chromomycin A5 was consistently the most potent over all tested cells (IC50 values from 0.2 in MM200 to 7.9 nM in PC-3M), inclusive when compared to the standard chemotherapeutic agent doxorubicin, that presented IC50 values ranging from 147 to 568 nM against MM200 and MCF-7, respectively. (AU) | |
| FAPESP's process: | 14/50926-0 - INCT 2014: biodiversity and natural products |
| Grantee: | Vanderlan da Silva Bolzani |
| Support Opportunities: | BIOTA-FAPESP Program - Thematic Grants |
| FAPESP's process: | 17/17648-4 - Integrative approach on the sustainable prospection of marine natural products: from diversity to anticancer compounds |
| Grantee: | Anelize Bauermeister |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 15/17177-6 - Integrative approach on the sustainable prospection of marine natural products: from diversity to anticancer compounds |
| Grantee: | Leticia Veras Costa Lotufo |
| Support Opportunities: | BIOTA-FAPESP Program - Thematic Grants |