JOURNAL ARTICLE
REVIEW

RELATIONSHIP BETWEEN CYTOKINES AND SYMPTOMS IN PEOPLE WITH INCURABLE CANCER: A SYSTEMATIC REVIEW

Rebekah Patton, Robert Paval, James J McDonald, Duncan Brown, Iain J Gallagher, Richard J E Skipworth, Donald C McMillan, Ross D Dolan, Marie Fallon, Barry J A Laird
Critical Reviews in Oncology/hematology 2021 January 19, : 103222
33482344

BACKGROUND: Development and spread of cancer is linked to the inflammatory response, in which cytokines serve a key role. The inflammatory response may also form the basis for symptoms of cancer. This systematic review examines the relationship between cytokines and symptoms in incurable cancer.

METHODS: MEDLINE, EMBASE, Cochrane Library, CINAHL, Web of Science and PsycINFO databases were searched for studies from January 2004 to January 2020.

RESULTS: Twenty studies were selected (n = 1,806 patients, 119 controls). Symptoms studied included depression, fatigue, pain, and loss of appetite. Nine studies examined patients with a specified tumour type, the remainder included patients with a mix of tumour types. Thirty-one cytokines were examined; multiple associations between cytokines and symptoms were described, supporting the hypothesis that cytokines may have a key role in symptom generation.

CONCLUSION: Symptoms of incurable cancer are associated with circulating cytokines. Further study is required to characterise these relationships, and to explore their therapeutic potential.

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