Metabolomic prostate cancer fields in HRMAS MRS‐profiled histologically benign tissue vary with cancer status and distance from cancer

作者：Sarah S. Dinges, Lindsey A. Vandergrift, Shulin Wu, Yannick Berker, Piet Habbel, Matthias Taupitz, Chin‐Lee Wu, Leo L. Cheng · 发表于：NMR in Biomedicine · 年份：2019 · DOI：10.1002/nbm.4038 · 被引用次数：28 · 研究领域：Prostate Cancer Diagnosis and Treatment、Metabolomics and Mass Spectrometry Studies、Molecular Biology Techniques and Applications

In this article, we review the state of the field of high resolution magic angle spinning MRS (HRMAS MRS)-based cancer metabolomics since its beginning in 2004; discuss the concept of cancer metabolomic fields, where metabolomic profiles measured from histologically benign tissues reflect patient cancer status; and report our HRMAS MRS metabolomic results, which characterize metabolomic fields in prostatectomy-removed cancerous prostates. Three-dimensional mapping of cancer lesions throughout each prostate enabled multiple benign tissue samples per organ to be classified based on distance from and extent of the closest cancer lesion as well as the Gleason score (GS) of the entire prostate. Cross-validated partial least squares-discriminant analysis separations were achieved between cancer and benign tissue, and between cancer tissue from prostates with high (≥4 + 3) and low (≤3 + 4) GS. Metabolomic field effects enabled histologically benign tissue adjacent to cancer to distinguish the GS and extent of the cancer lesion itself. Benign samples close to either low GS cancer or extensive cancer lesions could be distinguished from those far from cancer. Furthermore, a successfully cross-validated multivariate model for three benign tissue groups with varying distances from cancer lesions within one prostate indicates the scale of prostate cancer metabolomic fields. While these findings could, at present, be potentially useful in the prostate cancer clinic for analysis of biopsy o...