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The aim of this study was to explore how nurses can alleviate protective buffering between adult patients with cancer and their adult family caregivers (PROSPERO No. CRD42020207072). An integrative review was conducted. PubMed, CINAHL, Embase, and Cochrane Library were searched for primary research articles published between January 2010 and April 2022. Only research conducted in oncology, hematology, or multiple settings and investigating communication between adult patients with cancer and their adult family caregivers and/or the communication between patients, family caregivers, and nurses was included. The constant comparison method outlined the approach to the analysis and synthesis of the included studies. Titles and abstracts of 7,073 references were screened; 22 articles (19 qualitative and three quantitative studies) were included in the review. Three themes emerged during data analysis: (a) family coping, (b) an isolating journey, and (c) the nurse's role. A study limitation was that "protective buffering" is not a common term in the nursing literature. There is a need for further research on protective buffering in families with cancer, particularly on psychosocial interventions that focus on the whole family across various cancer types., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.