Liquid biopsy after resection of pancreatic adenocarcinoma and its relation to oncological outcomes. Systematic review and meta-analysis
Vidal, Laura (Hospital Universitari Vall d'Hebron)
Pando, Elizabeth (Hospital Universitari Vall d'Hebron)
Blanco Cuso, Laia (Hospital Universitari Vall d'Hebron)
Fabregat-Franco, Carles (Hospital Universitari Vall d'Hebron)
Sierra, Alexandre (Hospital Universitari Vall d'Hebron)
Macarulla Mercadé, Teresa (Hospital Universitari Vall d'Hebron)
Balsells, Joaquim (Hospital Universitari Vall d'Hebron)
Charco, Ramon (Hospital Universitari Vall d'Hebron)
Vivancos, Ana (Hospital Universitari Vall d'Hebron)
Universitat Autònoma de Barcelona

Date:	2023
Description:	10 pàg.
Abstract:	It has been hypothesised that manipulation during surgery releases tumoral components into circulation. We investigate the effect of surgery on plasma-borne DNA biomarkers and the oncological outcomes in resectable pancreatic ductal adenocarcinoma (PDAC). We also compare non-touch isolation techniques (NTIT) with standard techniques. We performed a systematic review and a meta-analysis of studies analysing liquid biopsy as circulating tumour DNA (ctDNA), circulating tumour cells (CTCs), and messenger RNA (mRNA) in resectable PDAC patients who underwent surgery and its association with overall survival (OS) and disease-free survival (DFS). Research in EMBASE, Web of Science and PubMed was performed. The ctDNA shift negative-to-positive (ctDNA -/+) or ctDNA shift positive-to-negative (ctDNA +/-) before and after surgery was evaluated. Twelve studies comprising 413 patients were included. Shorter OS and DFS were identified in patients with positive ctDNA status before (HR = 2. 28, p = 0. 005 and HR = 2. 16, p = 0. 006) or after surgery (HR = 3. 88, p < 0. 0001 and HR = 3. 81, p = 0. 03), respectively. Surgical resection increased the rate of ctDNA +/-. There were no differences in OS or DFS in the ctDNA +/- group compared with ctDNA +/+ or ctDNA -/+. However, there was a trend to shorter OS in the ctDNA -/+ group (HR = 5. 00, p = 0. 09). No differences between NTIT and standard techniques on liquid biopsy status were found. Positive ctDNA in the perioperative period is associated with a worse prognosis. Surgical resection has a role in the negativisation of liquid biopsy status. More studies are needed to assess the potential of minimally invasive techniques on ctDNA dynamics.
Note:	Altres ajuts: acords transformatius de la UAB
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	CtDNA ; Liquid biopsy ; Meta-analysis ; Non-touch isolation technique ; Pancreatic surgery ; Resectable pancreatic adenocarcinoma
Published in:	Cancer Treatment Reviews, Vol. 120 (2023) , p. 102604, ISSN 1532-1967

DOI: 10.1016/j.ctrv.2023.102604
PMID: 37572593

10 p, 3.2 MB

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