Ontology type: schema:ScholarlyArticle Open Access: True
2019-12
AUTHORSSarabjot Pabla, Jeffrey M. Conroy, Mary K. Nesline, Sean T. Glenn, Antonios Papanicolau-Sengos, Blake Burgher, Jacob Hagen, Vincent Giamo, Jonathan Andreas, Felicia L. Lenzo, Wang Yirong, Grace K. Dy, Edwin Yau, Amy Early, Hongbin Chen, Wiam Bshara, Katherine G. Madden, Keisuke Shirai, Konstantin Dragnev, Laura J. Tafe, Daniele Marin, Jason Zhu, Jeff Clarke, Matthew Labriola, Shannon McCall, Tian Zhang, Matthew Zibelman, Pooja Ghatalia, Isabel Araujo-Fernandez, Arun Singavi, Ben George, Andrew Craig MacKinnon, Jonathan Thompson, Rajbir Singh, Robin Jacob, Lynn Dressler, Mark Steciuk, Oliver Binns, Deepa Kasuganti, Neel Shah, Marc Ernstoff, Kunle Odunsi, Razelle Kurzrock, Mark Gardner, Lorenzo Galluzzi, Carl Morrison
ABSTRACTBACKGROUND: Resistance to immune checkpoint inhibitors (ICIs) has been linked to local immunosuppression independent of major ICI targets (e.g., PD-1). Clinical experience with response prediction based on PD-L1 expression suggests that other factors influence sensitivity to ICIs in non-small cell lung cancer (NSCLC) patients. METHODS: Tumor specimens from 120 NSCLC patients from 10 institutions were evaluated for PD-L1 expression by immunohistochemistry, and global proliferative profile by targeted RNA-seq. RESULTS: Cell proliferation, derived from the mean expression of 10 proliferation-associated genes (namely BUB1, CCNB2, CDK1, CDKN3, FOXM1, KIAA0101, MAD2L1, MELK, MKI67, and TOP2A), was identified as a marker of response to ICIs in NSCLC. Poorly, moderately, and highly proliferative tumors were somewhat equally represented in NSCLC, with tumors with the highest PD-L1 expression being more frequently moderately proliferative as compared to lesser levels of PD-L1 expression. Proliferation status had an impact on survival in patients with both PD-L1 positive and negative tumors. There was a significant survival advantage for moderately proliferative tumors compared to their combined highly/poorly counterparts (p = 0.021). Moderately proliferative PD-L1 positive tumors had a median survival of 14.6 months that was almost twice that of PD-L1 negative highly/poorly proliferative at 7.6 months (p = 0.028). Median survival in moderately proliferative PD-L1 negative tumors at 12.6 months was comparable to that of highly/poorly proliferative PD-L1 positive tumors at 11.5 months, but in both instances less than that of moderately proliferative PD-L1 positive tumors. Similar to survival, proliferation status has impact on disease control (DC) in patients with both PD-L1 positive and negative tumors. Patients with moderately versus those with poorly or highly proliferative tumors have a superior DC rate when combined with any classification schema used to score PD-L1 as a positive result (i.e., TPS ≥ 50% or ≥ 1%), and best displayed by a DC rate for moderately proliferative tumors of no less than 40% for any classification of PD-L1 as a negative result. While there is an over representation of moderately proliferative tumors as PD-L1 expression increases this does not account for the improved survival or higher disease control rates seen in PD-L1 negative tumors. CONCLUSIONS: Cell proliferation is potentially a new biomarker of response to ICIs in NSCLC and is applicable to PD-L1 negative tumors. More... »
PAGES27
http://scigraph.springernature.com/pub.10.1186/s40425-019-0506-3
DOIhttp://dx.doi.org/10.1186/s40425-019-0506-3
DIMENSIONShttps://app.dimensions.ai/details/publication/pub.1111834442
PUBMEDhttps://www.ncbi.nlm.nih.gov/pubmed/30709424
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"description": "BACKGROUND: Resistance to immune checkpoint inhibitors (ICIs) has been linked to local immunosuppression independent of major ICI targets (e.g., PD-1). Clinical experience with response prediction based on PD-L1 expression suggests that other factors influence sensitivity to ICIs in non-small cell lung cancer (NSCLC) patients.\nMETHODS: Tumor specimens from 120 NSCLC patients from 10 institutions were evaluated for PD-L1 expression by immunohistochemistry, and global proliferative profile by targeted RNA-seq.\nRESULTS: Cell proliferation, derived from the mean expression of 10 proliferation-associated genes (namely BUB1, CCNB2, CDK1, CDKN3, FOXM1, KIAA0101, MAD2L1, MELK, MKI67, and TOP2A), was identified as a marker of response to ICIs in NSCLC. Poorly, moderately, and highly proliferative tumors were somewhat equally represented in NSCLC, with tumors with the highest PD-L1 expression being more frequently moderately proliferative as compared to lesser levels of PD-L1 expression. Proliferation status had an impact on survival in patients with both PD-L1 positive and negative tumors. There was a significant survival advantage for moderately proliferative tumors compared to their combined highly/poorly counterparts (p\u2009=\u20090.021). Moderately proliferative PD-L1 positive tumors had a median survival of 14.6\u2009months that was almost twice that of PD-L1 negative highly/poorly proliferative at 7.6\u2009months (p\u2009=\u20090.028). Median survival in moderately proliferative PD-L1 negative tumors at 12.6\u2009months was comparable to that of highly/poorly proliferative PD-L1 positive tumors at 11.5\u2009months, but in both instances less than that of moderately proliferative PD-L1 positive tumors. Similar to survival, proliferation status has impact on disease control (DC) in patients with both PD-L1 positive and negative tumors. Patients with moderately versus those with poorly or highly proliferative tumors have a superior DC rate when combined with any classification schema used to score PD-L1 as a positive result (i.e., TPS\u2009\u2265\u200950% or\u2009\u2265\u20091%), and best displayed by a DC rate for moderately proliferative tumors of no less than 40% for any classification of PD-L1 as a negative result. While there is an over representation of moderately proliferative tumors as PD-L1 expression increases this does not account for the improved survival or higher disease control rates seen in PD-L1 negative tumors.\nCONCLUSIONS: Cell proliferation is potentially a new biomarker of response to ICIs in NSCLC and is applicable to PD-L1 negative tumors.",
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"name": "Proliferative potential and resistance to immune checkpoint blockade in lung cancer patients",
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