American Association for Cancer Research
00085472can161959-sup-169228_2_supp_3707178_tgc80s.png (184 kB)

Supplementary Figure 2 from Integrative Comparison of mRNA Expression Patterns in Breast Cancers from Caucasian and Asian Americans with Implications for Precision Medicine

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posted on 2023-03-31, 00:43 authored by Yanxia Shi, Albert Steppi, Ye Cao, Jianan Wang, Max M. He, Liren Li, Jinfeng Zhang

Figure S2: Figure showing the overwhelming down-regulation of cancer pathways in Asian American breast cancer compared to Caucasian American breast cancer.


Science and Technology Foundation of Guangdong province

Foundation of Science and Technology Planning Project of Guangdong Province of China


Marshfield Clinic Research Foundation.



Asian Americans (AS) have significantly lower incidence and mortality rates of breast cancer than Caucasian Americans (CA). Although this racial disparity has been documented, the underlying pathogenetic factors explaining it are obscure. We addressed this issue by an integrative genomics approach to compare mRNA expression between AS and CA cases of breast cancer. RNA-seq data from the Cancer Genome Atlas showed that mRNA expression revealed significant differences at gene and pathway levels. Increased susceptibility and severity in CA patients were likely the result of synergistic environmental and genetic risk factors, with arachidonic acid metabolism and PPAR signaling pathways implicated in linking environmental and genetic factors. An analysis that also added eQTL data from the Genotype-Tissue Expression Project and SNP data from the 1,000 Genomes Project identified several SNPs associated with differentially expressed genes. Overall, the associations we identified may enable a more focused study of genotypic differences that may help explain the disparity in breast cancer incidence and mortality rates in CA and AS populations and inform precision medicine. Cancer Res; 77(2); 423–33. ©2016 AACR.