Title:Optimal Indications of Radioimmunotherapy in Nuclear Medicine: A Mini-Review
Volume: 17
Issue: 4
Author(s): Nasim Vahidfar, Hojjat Ahmadzadehfar*, Saeed Farzanefar, Mehrshad Abbasi, Yalda Salehi, Fateme Saboktakin, Mahsa Jahanbin, Mohsen Bakhshi Kashi, Elisabeth Eppard and Hans Jürgen Biersack
Affiliation:
- Department of Nuclear Medicine, Klinikum Westfalen, 44309 Dortmund, Germany
- Institute of Diagnostic and Interventional Radiology, Neuroradiology and Nuclear Medicine, University Hospital Knappschaftskrankenhaus Bochum, Bochum, Germany
Keywords:
Radioimmunotherapy, radioantibodies, nuclear medicine, therapy, cancer, diagnostic.
Abstract: Immunotherapy has emerged as a very considerable and potent therapeutic method in
which immune inhibitors have gained a lot of attention in the curative field of various cancers.
Under certain circumstances, when radiotherapy is accompanied by immunotherapy, the efficacy
of the therapeutic procedure increases. Irradiated tumor cells follow a pathway called immunogenic
cell death, which targets tumor associated antigens. The application of radiolabeled
antibodies under the concept of “radioimmunotherapy” (RIT) makes the synergistic targeted
therapeutic effect possible. Since antibodies themselves are cytotoxic, they can kill the cells that
not only bind but are within the path length of their radiation emissions. RIT can be categorized
as a substantial progress in nuclear medicine. The main concept of RIT includes targeting specified
tumor-expressing antibodies. The mentioned purpose is achievable by formulation of radiolabeled
antibodies, which could be injected intravenously or directly into the tumor, as well as
compartmentally into a body cavity such as the peritoneum, pleura, or intrathecal space. RIT has
demonstrated very optimistic therapeutic outcomes in radioresistant solid tumors. Wide ranges
of efforts are accomplished in order to improve clinical trial accomplishments. In this review,
we intend to summarize the performed studies on RIT and their importance in medicine.