کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
3329420 | 1212396 | 2010 | 62 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Tumor and host factors that may limit efficacy of chemotherapy in non-small cell and small cell lung cancer
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موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
هماتولوژی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Tumor and host factors that may limit efficacy of chemotherapy in non-small cell and small cell lung cancer Tumor and host factors that may limit efficacy of chemotherapy in non-small cell and small cell lung cancer](/preview/png/3329420.png)
چکیده انگلیسی
While chemotherapy provides useful palliation, advanced lung cancer remains incurable since those tumors that are initially sensitive to therapy rapidly develop acquired resistance. Resistance may arise from impaired drug delivery, extracellular factors, decreased drug uptake into tumor cells, increased drug efflux, drug inactivation by detoxifying factors, decreased drug activation or binding to target, altered target, increased damage repair, tolerance of damage, decreased proapoptotic factors, increased antiapoptotic factors, or altered cell cycling or transcription factors. Factors for which there is now substantial clinical evidence of a link to small cell lung cancer (SCLC) resistance to chemotherapy include MRP (for platinum-based combination chemotherapy) and MDR1/P-gp (for non-platinum agents). SPECT MIBI and Tc-TF scanning appears to predict chemotherapy benefit in SCLC. In non-small cell lung cancer (NSCLC), the strongest clinical evidence is for taxane resistance with elevated expression or mutation of class III β-tubulin (and possibly α tubulin), platinum resistance and expression of ERCC1 or BCRP, gemcitabine resistance and RRM1 expression, and resistance to several agents and COX-2 expression (although COX-2 inhibitors have had minimal impact on drug efficacy clinically). Tumors expressing high BRCA1 may have increased resistance to platinums but increased sensitivity to taxanes. Limited early clinical data suggest that chemotherapy resistance in NSCLC may also be increased with decreased expression of cyclin B1 or of Eg5, or with increased expression of ICAM, matrilysin, osteopontin, DDH, survivin, PCDGF, caveolin-1, p21WAF1/CIP1, or 14-3-3sigma, and that IGF-1R inhibitors may increase efficacy of chemotherapy, particularly in squamous cell carcinomas. Equivocal data (with some positive studies but other negative studies) suggest that NSCLC tumors with some EGFR mutations may have increased sensitivity to chemotherapy, while K-ras mutations and expression of GST-pi, RB or p27kip1 may possibly confer resistance. While limited clinical data suggest that p53 mutations are associated with resistance to platinum-based therapies in NSCLC, data on p53 IHC positivity are equivocal. To date, resistance-modulating strategies have generally not proven clinically useful in lung cancer, although small randomized trials suggest a modest benefit of verapamil and related agents in NSCLC.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Critical Reviews in Oncology/Hematology - Volume 75, Issue 3, September 2010, Pages 173-234
Journal: Critical Reviews in Oncology/Hematology - Volume 75, Issue 3, September 2010, Pages 173-234
نویسندگان
David J. Stewart,