Trends in Immunotherapy requires the submission of reports in the method section of cell line research to indicate the source of any cell line. For established cell lines the provenance should be stated and references must also be given to either a published paper or to a commercial source. Authors must identify the committee or organization (e.g. author’s Institutional Ethics Review Board) approving the experiments in the Methodology section of the manuscript, which should also detail ethics approval information such as the name of the granting committee or organization and the approval identifiers, i.e. reference numbers. In the case that ethics approval identifiers are not available, written approval from the granting committee or organization must be provided as confidential supplementary file. Authors must confirm that they obtained the consent from the donor or next of kin for deriving a cell line from the donor.