期刊
TRANSLATIONAL ONCOLOGY
卷 19, 期 -, 页码 -出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.tranon.2022.101380
关键词
Gastric cancer; Hepatoid adenocarcinoma of the stomach; Molecular typing; Predictive biomarkers
类别
资金
- Zhejiang Province Key Project of Research and Development [2019C03043]
- Clinical Research Project of Zhejiang Medical Association [2018ZYC-A118]
- Natural Science Foundation of Zhejiang Province [LY19H160042]
- National Natural Science Foundation of China [82030048, 81301889]
- National Key R&D Program of China [2018YFC0115900]
- Key Research and Development Program of Zhejiang Province [2019C03077]
This study evaluated the molecular characteristics of hepatoid adenocarcinoma of the stomach (HAS) and found that it can be mainly categorized into genomic stable and chromosomal instability phenotypes, with wild type P53 status predicting better prognosis. The presence of tumor infiltrating lymphocytes suggested that some HAS patients may be suitable candidates for immune checkpoint blockade therapy. The immune prognostic index and derived neutrophil to lymphocyte ratio showed potential as reliable indicators for predicting prognosis of HAS.
Hepatoid adenocarcinoma of the stomach (HAS) is a particular subtype of Gastric cancer (GC) with distinct pathological characteristics and genetic profile, but most HAS patients were received identical regimens as common GC. To date, only a few studies has been conducted to investigate the molecular characteristics of HAS, which may prevent the rational application of new anticancer strategies. To further obtain the genetic features and potential predictive and prognostic biomarkers of HAS, our current study evaluated the clinical implications of spectrum molecular markers in 36 surgical resection specimens. None Epstein-Barr virus (EBV) positive and/or micro-satellite instable high (MSI-h) tumors occurred in our study implies that the molecular classification of HAS should be mainly categorized into genomic stable (GS) and chromosomal instability (CIN) phenotypes, and wild type P53 status predicts better prognosis. More importantly, although the prognosis and clinical characteristics were independent of programmed cell death-ligand 1 (PD-L1), the presence of tumor infiltrating lymphocytes (TILs) still suggested that a portion of the enrolled HAS patients are potentially appropriate candidates for immune checkpoint blockade therapy. Additionally, the immune prognostic index (IPI) and derived neutrophil to lymphocyte ratio (dNLR) demonstrated their potential as reliable and economic indicators for predicting prognosis of HAS. We hope this first systematic evaluation will help in deciphering the molecular characterization and potential individualized regimens for this particular subtype of GC.
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