Biophotonic detection of high order chromatin alterations in field carcinogenesis predicts risk of future hepatocellular carcinoma: A pilot study

Richard Kalman*, Andrew Stawarz, David Nunes, Di Zhang, Mart A. Dela Cruz, Arpan Mohanty, Hariharan Subramanian, Vadim Backman, Hemant K. Roy

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Purpose Hepatocellular carcinoma (HCC) results from chronic inflammation/cirrhosis. Unfortunately, despite use of radiological/serological screening techniques, HCC ranks as a leading cause of cancer deaths. Our group has used alterations in high order chromatin as a marker for field carcinogenesis and hence risk for a variety of cancers (including colon, lung, prostate, ovarian, esophageal). In this study we wanted to address whether these chromatin alterations occur in HCC and if it could be used for risk stratification. Experimental design A case control study was performed in patients with cirrhosis who went on to develop HCC and patients with cirrhosis who did not develop cancer. We performed partial wave spectroscopic microscopy (PWS) which measures nanoscale alterations on formalin fixed deparaf-finized liver biopsy specimens, 17 progressors and 26 non-progressors. Follow up was 2089 and 2892 days, respectively. Results PWS parameter disorder strength Ld were notably higher for the progressors (Ld = 1.47 ± 0.76) than the non-progressors (Ld = 1.00 ± 0.27) (p = 0.024). Overall, the Cohen’s d effect size was 0.907 (90.7%). AUROC analysis yielded an area of 0.70. There was no evidence of confounding by gender, age, BMI, smoking status and race. Conclusions High order chromatin alterations, as detected by PWS, is altered in pre-malignant hepatocytes with cirrhosis and may predict future risk of HCC.

Original languageEnglish (US)
Article numbere0197427
JournalPloS one
Volume13
Issue number5
DOIs
StatePublished - May 2018

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ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Agricultural and Biological Sciences(all)
  • General

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