PMID- 37455824 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230718 IS - 2692-3114 (Electronic) IS - 2692-3114 (Linking) VI - 4 IP - 3 DP - 2023 TI - Spontaneous regression of a metastatic carcinoma transmitted by a kidney graft. PG - 511-518 LID - 10.37349/etat.2023.00148 [doi] AB - Transmission of a malignancy from a donor's organ to the recipient of the graft is a rare event, though it is a severe complication that can result in a poor outcome. Usually, immunosuppressive therapy is discontinued and the allograft is removed. However, treatment of patients with the disseminated cancers implies that after the graft removal and cessation of the immunosuppression, radiotherapy, chemotherapy, or immunotherapy with alpha-interferon (INF-alpha) or interleukin-2 (IL-2) are required. The case report presents a clinical case of a transmitted kidney graft with multiple metastases (MTS) in a 31-year-old woman with the spontaneous regression of the metastatic cancer after transplantectomy and cancellation of the immunosuppressive therapy. Obviously, the determining factor is the recognition of the tumor by the effectors of the antitumor immunity due to the human leukocyte antigen (HLA) mismatch between the donor and the recipient. Therefore, cancellation of the immunosuppressive therapy in cases of transferal of a malignancy with a transplanted organ allows the effectors of the immune system to distinguish the tumor as a foreign tissue and effectively eliminate this neoplasm. CI - (c) The Author(s) 2023. FAU - Kiselevskiy, Mikhail V AU - Kiselevskiy MV AUID- ORCID: 0000-0002-0132-167X AD - Laboratory of Cell Immunity, N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia, Moscow 115552, Russia. FAU - Gromova, Elena G AU - Gromova EG AUID- ORCID: 0000-0002-4633-8301 AD - Intensive Care Unit, N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia, Moscow 115552, Russia. FAU - Kozlov, Nikolay A AU - Kozlov NA AUID- ORCID: 0000-0003-3852-3969 AD - Pathology Department, Division of Morphological and Molecular Genetic Diagnostics of Tumors, N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia, Moscow 115552, Russia. FAU - Bezhanova, Svetlana D AU - Bezhanova SD AUID- ORCID: 0000-0001-7336-9210 AD - Pathology Department, Division of Morphological and Molecular Genetic Diagnostics of Tumors, N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia, Moscow 115552, Russia. FAU - Shubina, Irina Zh AU - Shubina IZ AUID- ORCID: 0000-0002-9374-3158 AD - Laboratory of Cell Immunity, N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia, Moscow 115552, Russia. LA - eng PT - Case Reports DEP - 20230630 PL - United States TA - Explor Target Antitumor Ther JT - Exploration of targeted anti-tumor therapy JID - 101770662 PMC - PMC10344895 OTO - NOTNLM OT - Cancer OT - immunosuppressive therapy OT - kidney graft OT - spontaneous regressions COIS- The authors declare that they have no conflicts of interest. EDAT- 2023/07/17 06:42 MHDA- 2023/07/17 06:43 PMCR- 2023/06/30 CRDT- 2023/07/17 04:16 PHST- 2022/12/20 00:00 [received] PHST- 2023/03/09 00:00 [accepted] PHST- 2023/07/17 06:43 [medline] PHST- 2023/07/17 06:42 [pubmed] PHST- 2023/07/17 04:16 [entrez] PHST- 2023/06/30 00:00 [pmc-release] AID - 10.37349/etat.2023.00148 [doi] PST - ppublish SO - Explor Target Antitumor Ther. 2023;4(3):511-518. doi: 10.37349/etat.2023.00148. Epub 2023 Jun 30.