Abstract 52P
Background
We evaluated the relationship between 18F-FDG uptake and mitochondrial activity in cancer cells and investigated the prognostic implications thereof in patients with invasive ductal carcinoma of the breast (IDCB).
Methods
In total, 150 consecutive patients with IDCB who underwent preoperative 18F-FDG PET/CT followed by curative surgical resection were retrospectively enrolled. Mitochondrial activity of cancer cells was assessed based on translocase of outer mitochondrial membrane 20 (TOMM20) expression and cytochrome C oxidase (COX) activity. Pearson’s correlation analysis was used to assess the relationship between SUVmax of the primary tumour (pSUVmax) and mitochondrial activity. Clinicopathological factors, including pSUVmax, histological grade, expression of ER, PR, HER2, and TOMM20, and COX activity, were assessed for prediction of progression-free survival (PFS). The Kaplan–Meier method and Cox proportional hazards model were used for the survival analysis.
Results
Sixteen of the 150 subjects (10.7%) showed progression during the follow-up period. pSUVmax correlated significantly and positively with TOMM20 expression and COX activity. Univariate analysis revealed that pSUVmax, TOMM20 expression, COX activity, ER and PR status, and histologic grade were significantly associated with PFS. Multivariate analysis revealed a significant difference in pSUVmax (HR, 4.50; 95% CI, 1.43–14.17; P = 0.010).
Conclusions
There was a significant positive correlation between 18F-FDG uptake and mitochondrial activity of cancer cells in patients with IDCB. Increased 18F-FDG uptake and mitochondrial activity were significantly associated with a shorter PFS. Therefore, assessment of preoperative 18F-FDG uptake and post-surgical mitochondrial activity in patients with IDCB could be used as marker for prediction of PFS.
Clinical trial identification
Editorial acknowledgement
Legal entity responsible for the study
Choi Byung Wook (Daegu Catholic University Medical Center).
Funding
Has not received any funding.
Disclosure
All authors have declared no conflicts of interest.
Resources from the same session
75P - A parallel deep learning network framework for whole-body bone scan image analysis
Presenter: Xiaorong Pu
Session: Poster display session
Resources:
Abstract
76P - Perception and satisfaction of cancer patients in clinical trials
Presenter: Jukyung Jeon
Session: Poster display session
Resources:
Abstract
77P - A prognostic nomogram for the prediction of neuroblastoma
Presenter: Jian-Guo Zhou
Session: Poster display session
Resources:
Abstract
80P - The clinical usefulness of a new fat-dissociation method to detect lymph nodes from surgically resected specimen in colorectal cancer: Prospective randomized study
Presenter: Shiki Fujino
Session: Poster display session
Resources:
Abstract
81P - Concurrent or consolidation chemotherapy during radiation as neoadjuvant treatment for locally advanced rectal cancer: A propensity score analysis from two prospective study
Presenter: JianWei Zhang
Session: Poster display session
Resources:
Abstract
82P - Body mass index, tumour location, and colorectal cancer survival
Presenter: Dake Chu
Session: Poster display session
Resources:
Abstract
83P - Helicobacter bilis may play a role in the carcinogenesis of colitis associated colon cancer correlating to increased number of CD4+CD45RB+ T cells
Presenter: Xiangsheng Fu
Session: Poster display session
Resources:
Abstract
84P - Comprehensive evaluation of relapse risk (CERR) score for colorectal liver metastases development and validation
Presenter: Jianmin Xu
Session: Poster display session
Resources:
Abstract
85P - Which is the best partner for capecitabine-based neoadjuvant chemoradiotherapy in locally advanced rectal cancer? A retrospective analysis of a comprehensive cancer center
Presenter: Jingwen Wang
Session: Poster display session
Resources:
Abstract
87P - Negative to positive lymph node ratio-prognostic marker of survival in node positive rectal cancer
Presenter: Pavan Jonnada
Session: Poster display session
Resources:
Abstract