2010
DOI: 10.1590/s0100-40422010001000027
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Glicoproteína-P, resistência a múltiplas drogas (MDR) e relação estrutura-atividade de moduladores

Abstract: Recebido em 6/1/10; aceito em 7/5/10; publicado na web em 24/8/10 P-GLYCOPROTEIN AND MULTIDRUG RESISTANCE: STRUCTURE-ACTIVITY RELATIONSHIPS OF MODULATORS. Multidrug resistance, MDR is a major obstacle for cancer chemotherapy. MDR can be reversed by drugs that vary in their chemical structure and main biological activity. Many efforts have been done to overcome MDR based on studies of structure-activity relationships and in this review we summarize some aspects of MDR mediated by P-glycoprotein (P-gp), as the m… Show more

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Cited by 21 publications
(10 citation statements)
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“…Chemotherapy is beneficial at most stages of the disease, although it and radiation therapy are curative in only a minority of patients. The failure of chemotherapy in lung cancer treatment is mainly due to resistance mechanisms against chemotherapeutic agents, which result in a lack of therapeutic response [3,4]. Resistance phenomenon can occur by efflux pumps as P-glycoprotein (P-gp), which is expressed in human cells and acts as a localized drug transport mechanism, actively exporting drugs out of the cell [3,5,6].…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Chemotherapy is beneficial at most stages of the disease, although it and radiation therapy are curative in only a minority of patients. The failure of chemotherapy in lung cancer treatment is mainly due to resistance mechanisms against chemotherapeutic agents, which result in a lack of therapeutic response [3,4]. Resistance phenomenon can occur by efflux pumps as P-glycoprotein (P-gp), which is expressed in human cells and acts as a localized drug transport mechanism, actively exporting drugs out of the cell [3,5,6].…”
Section: Introductionmentioning
confidence: 99%
“…The failure of chemotherapy in lung cancer treatment is mainly due to resistance mechanisms against chemotherapeutic agents, which result in a lack of therapeutic response [3,4]. Resistance phenomenon can occur by efflux pumps as P-glycoprotein (P-gp), which is expressed in human cells and acts as a localized drug transport mechanism, actively exporting drugs out of the cell [3,5,6]. In that sense, the efflux mechanism shows great clinical importance on lung cancer treatment and several compounds with P-gp inhibitor properties have been studied [7] to modulate chemotherapy resistance and to provide a more pronounced effect to chemotherapeutic drugs.…”
Section: Introductionmentioning
confidence: 99%
“…In dogs with TVT, overexpression of permeability glycoprotein (P-gp) is one of the major factors leading to multidrug resistance (MDR) (9,10). MDR may occur with vincristine, vinblastine, doxorubicin, prednisolone, and others (11). The dog in this case report possibly had P-gp-mediated MDR, but this hypothesis was not tested.…”
Section: Discussionmentioning
confidence: 95%
“…This resistance is multifactorial, and may result, among other factors, from the activation or overexpression of proteins from ABC transporter family (ATP Binding Cassette). Resistance to chemotherapeutic drugs promoted by P-gp, a well characterized ABC-transporter, is the most studied form of resistance in vitro, in vivo and in the clinic and, consequently, a large number of compounds are investigated for their abilities to affect the phenomenon [ 24 ].…”
Section: Discussionmentioning
confidence: 99%