Improvement in the neutrophil-lymphocyte ratio after combined FOLFOX chemotherapy for stage III colon cancer is associated with improved minimal resdiual disease and outcome

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dc.contributor.authorMurray, Nigel P.es
dc.contributor.authorVillalon, Ricardoes
dc.contributor.authorHartmann, Danes
dc.contributor.authorRodriguez, Patricia Mariaes
dc.contributor.authorAedo, Sócrateses
dc.date.accessioned2022-10-13T11:57:16Z
dc.date.available2022-10-13T11:57:16Z
dc.date.issued2022-02-19
dc.description.abstractIntroduction: Minimal residual disease (MRD) is the net result of the biological properties of disseminated tumour cells and the effect of the immune system and treatment to eliminate them. The aim of this study was to analyse the effect of combined chemotherapy on the immune function as determined by the neutrophil-lymphocyte ratio (NLR) and if it was associated with changes in the subtype of minimal residual disease and outcome in stage III colon cancer. Methods and Patients: A prospective, single centre observational study; the NLR was determined immediately prior to and one, two and three months after completing chemotherapy. Circulating tumour cells (CTCs) and bone marrow micro-metastasis (mM) using immunocytochemistry with anti-CEA were determined prior to and one month after chemotherapy. The association of changes in the NLR with MRD subtypes classified as Group I (negative for CTCs and mM), Group II (positive for mM) and Group III (positive for CTCs) as a result of chemotherapy and five-year disease free progression (DFS) analysed. Results: One hundred and eighty eight patients participated of whom 83 (44.9%) relapsed. In non-relapsing patients the NLR significantly increased and was higher after chemotherapy compared with relapsing patients. Significant increases in the NLR were associated with changes to a better MRD prognostic subtype and decreases with a worse MRD subtype. Neither baseline NLR nor MRD subtype predicted response to chemotherapy. DFS for MRD subgroups were 88%, 56% and 6% for Groups I to III respectively. Conclusions: Immune function as measured by the NLR is associated with MRD prognostic subtypes, improvements in the NLR are associated with improvements in MRD post chemotherapy but neither baseline NLR or MRD predicted outcome.en
dc.identifier.citationAsian Pacific Journal of Cancer Prevention, Vol. 23, N° 2 (2022) p. 591-599.
dc.identifier.doihttps://doi.org/10.31557/apjcp.2022.23.2.591
dc.identifier.issn1513-7368
dc.identifier.orcidhttps://orcid.org/0000-0001-8154-8550
dc.identifier.orcidhttps://orcid.org/0000-0002-7140-4294
dc.identifier.orcidhttps://orcid.org/0000-0001-5567-3374
dc.identifier.urihttp://hdl.handle.net/20.500.12254/2573
dc.language.isoenen
dc.publisherAsia Pacific Organization for Cancer Prevention (APOCP)en
dc.subject.otherColon canceres
dc.subject.otherMinimal residual diseaseen
dc.subject.otherImmune dysfunctionen
dc.subject.otherNeutrophil-Lymphocyte ratioen
dc.subject.otherImmune dysfunctionen
dc.titleImprovement in the neutrophil-lymphocyte ratio after combined FOLFOX chemotherapy for stage III colon cancer is associated with improved minimal resdiual disease and outcomeen
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Improvement in the Neutrophil-Lymphocyte Ratio after Combined Fluorouracil, Leucovorina and Oxaliplatino based (FOLFOX) Chemotherapy for Stage III Colon Cancer is Associated with Improved Minimal Residual Disease and Outcome.pdf
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