Abscopal effect in radioimmunotherapy

Ashrafizadeh, M. and Farhood, B. and Eleojo Musa, A. and Taeb, S. and Rezaeyan, A. and Najafi, M. (2020) Abscopal effect in radioimmunotherapy. International Immunopharmacology, 85.

Full text not available from this repository.
Official URL: https://www.scopus.com/inward/record.uri?eid=2-s2....


Abscopal effect is an interesting phenomenon in radiobiology that causes activation of immune system against cancer cells. Traditionally, this phenomenon was known as a suppressor of non-irradiated tumors or metastasis. However, it can be used as a stimulator of the immune system against primary tumor during radiotherapy. Immunotherapy, a novel tumor therapy modality, also triggers immune system against cancer. To date, some immunotherapy types have been developed. However, immune checkpoint blockade is a more common modality and some drugs have been approved by the FDA. Studies have shown that radiotherapy or immunotherapy administered alone have low efficiency for tumor control. However, their combination has a more potent anti-tumor immunity. For this aim, it is important to induce abscopal effect in primary tumors, and also use appropriate drugs to target the mechanisms involved in the exhaustion of cytotoxic CD8+T lymphocytes (CTLs) and natural killer (NK) cells. Among the different radiotherapy techniques, stereotactic body radiation therapy (SBRT) with some few fractionations is the best choice for inducing abscopal effect. On the other hand, programmed cell death 1 (PD-1) is known as one of the best targets for triggering anti-tumor immunity. This combination is known as the best choice among various strategies for radioimmunotherapy. However, there is the need for other strategies to improve the duration of immune system's activity within tumor microenvironment (TME). In this review, we explain the cellular and molecular mechanisms behind abscopal effect by radiotherapy and evaluate the molecular targets which induce potent anti-tumor immunity. © 2020 Elsevier B.V.

Item Type: Article
Additional Information: cited By 2
Uncontrolled Keywords: immunologic agent; programmed death 1 ligand 1, abscopal effect; antineoplastic activity; cancer radiotherapy; CD8+ T lymphocyte; human; immune system; immunostimulation; immunosuppressive treatment; molecular mechanics; molecularly targeted therapy; natural killer cell; primary tumor; priority journal; radiation dose fractionation; radioimmunotherapy; Review; stereotactic body radiation therapy; tumor microenvironment
Subjects: QV Pharmacology
Depositing User: eprints admin
Date Deposited: 22 Sep 2020 08:29
Last Modified: 22 Sep 2020 08:29
URI: http://eprints.iums.ac.ir/id/eprint/23222

Actions (login required)

View Item View Item