Podoplanin-expressing cancer-associated fibroblasts inhibit small cell lung cancer growth.

Podoplanin-expressing cancer-associated fibroblasts inhibit small cell lung cancer growth.
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DOI:
10.18632/oncotarget.3371
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发表时间:
2015-04-20
期刊:
影响因子:
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通讯作者:
Ochiai A
Ochiai A
中科院分区:
其他
文献类型:
--
作者:
Takahashi A;Ishii G;Neri S;Yoshida T;Hashimoto H;Suzuki S;Umemura S;Matsumoto S;Yoh K;Niho S;Goto K;Ohmatsu H;Nagai K;Gemma A;Ohe Y;Ochiai A

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表达足平面蛋白(PDPN)的癌症相关成纤维细胞(CAFs)是手术切除的小细胞肺癌(SCLC)的良好预后指标。本研究探讨表达PDPN的CAFs是否影响SCLC细胞的增殖。与对照组(与CAFs- ctrl共培养)相比,与过表达PDPN的CAFs共培养的SCLC细胞数量减少。shRNA抑制cas中PDPN的表达导致SCLC细胞数量增加。在手术切除的人类SCLC标本中,pdpn阳性cas病例中gemini阳性癌细胞的频率明显高于pdpn阴性cas病例。因此,表达PDPN的CAFs抑制SCLC细胞的生长,表明表达PDPN的CAFs在SCLC中代表了肿瘤抑制基质细胞成分。
Cancer-associated fibroblasts (CAFs) expressing podoplanin (PDPN) are a favorable prognosticator in surgically resected small cell lung cancer (SCLC). Here we explore whether CAFs expressing PDPN influence proliferation of SCLC cells. Compared with control group (SCLC cells co-cultured with CAFs-Ctrl), numbers of SCLC cells co-cultured with CAFs overexpressing PDPN were decreased. Suppression of PDPN expression by shRNA in CAFs resulted in increased numbers of SCLC cells. In surgically resected human SCLC specimens, the frequency of Geminin-positive cancer cells was significantly higher in the cases with PDPN-positive CAFs than in the cases with PDPN-negative CAFs. Thus CAFs expressing PDPN inhibit growth of SCLC cells, suggesting that CAFs expressing PDPN represent a tumor inhibitory stromal cell component in SCLC.
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