HIF1A and neoplasm: In pancreatic cancer, plasma profiling of four miRNAs, including hypoxia-sensitive miR-210, and determination of their sensitivity and specificity values promises to generate feasible blood-based biomarkers for the early detection of pancreatic cancer [182], while the significantly increased expression of miR-107 seen in both tumor tissues and serum and its correlation with HIF-1α expression suggest the practicality of using miR-107 as a biomarker for the detection of gastric cancer and tumor hypoxia [64].