Preclinical and clinical evaluation of intraductally administered agents in early breast cancer.

Preclinical and clinical evaluation of intraductally administered agents in early breast cancer.
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DOI:
10.1126/scitranslmed.3002368
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发表时间:
2011-10-26
影响因子:
17.1
通讯作者:
Sukumar S
Sukumar S
中科院分区:
医学1区
文献类型:
--
作者:
Stearns V;Mori T;Jacobs LK;Khouri NF;Gabrielson E;Yoshida T;Kominsky SL;Huso DL;Jeter S;Powers P;Tarpinian K;Brown RJ;Lange JR;Rudek MA;Zhang Z;Tsangaris TN;Sukumar S

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Most breast cancers originate in the epithelial cells lining the breast ducts. Intraductal administration of cancer therapeutics would lead to high drug exposure to ductal cells and eliminate preinvasive neoplasms while limiting systemic exposure. We performed preclinical studies in N-methyl-N’-nitrosourea–treated rats to compare the effects of 5-fluorouracil, carboplatin, nanoparticle albumin-bound paclitaxel, and methotrexate to the previously reported efficacy of pegylated liposomal doxorubicin (PLD) on treatment of early and established mammary tumors. Protection from tumor growth was observed with all five agents, with extensive epithelial destruction present only in PLD-treated rats. Concurrently, we initiated a clinical trial to establish the feasibility, safety, and maximum tolerated dose of intraductal PLD. In each eligible woman awaiting mastectomy, we visualized one ductal system and administered dextrose or PLD using a dose-escalation schema (2 to 10 mg). Intraductal administration was successful in 15 of 17 women with no serious adverse events. Our preclinical studies suggest that several agents are candidates for intraductal therapy. Our clinical trial supports the feasibility of intraductal administration of agents in the outpatient setting. If successful, administration of agents directly into the ductal system may allow for “breast-sparing mastectomy” in select women.
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