Cited by 88Effects of Radiation ExposureHematopoietic Stem Cell TransplantationRadiation Therapy and Dosimetry

Radiation countermeasures for hematopoietic acute radiation syndrome: growth factors, cytokines and beyond

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Singh, Vijay K., Seed, Thomas M.·2021·International Journal of Radiation Biology

Abstract

Purpose The intent of this article is to report the status of some of the pharmaceuticals currently in late stage development for possible use for individuals unwantedly and acutely injured as a result of radiological/nuclear exposures. The two major questions we attempt to address here are: (a) What medicinals are currently deemed by regulatory authorities (US FDA) to be safe and effective and are being stockpiled? (b) What additional agents might be needed to make the federal/state/local medicinal repositories more robust and useful in effectively managing contingencies involving radiation overexposures? Conclusions A limited number (precisely four) of medicinals have been deemed safe and effective, and are approved by the US FDA for the 'hematopoietic acute radiation syndrome (H-ARS).' These agents are largely recombinant growth factors (e.g. rhuG-CSF/filgrastim, rhuGM-CSF/sargramostim) that target and stimulate myeloid progenitors within bone marrow. Romiplostim, a small molecular agonist that enhances platelet production via stimulation of bone marrow megakaryocytes, has been recently approved and indicated for H-ARS. It is critical that additional agents for other major sub-syndromes of ARS (gastrointestinal-ARS) be approved. Future success in developing such medicinals will undoubtedly entail some form of a polypharmaceutical strategy, or perhaps novel, bioengineered chimeric agents with multiple, radioprotective/radiomitigative functionalities.

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Crossref · 10.1080/09553002.2021.1969054

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118 of 118 references verified0 citation errors · 0 not checkable

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  • FDA-approved radiomitigators such as leukocyte growth factors or megakaryocyte-targeting products that treat hematopoietic effects of acute radiation syndrome are non-viable options for space radiation because their mechanism of stimulating cells to divide may propagate late radiation-induced damage and increase overall carcinogenesis risk.

    “FDA-approved radiomitigators such as leukocyte growth factors or megakaryocyte-targeting products that treat the hematopoietic effects of ARS are also non-viable options due to their mechanism of stimulating cells to divide, which may lead to the propagation of late radiation-induced damage, increasing the overall risk of carcinogenesis (Singh and Seed, 2021;Singh et al., 2015).”

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Authors
Singh, V. K., & Seed, T. M.
Affiliations
  • Uniformed Services University of the Health Sciences (US)
  • Tech Micro Services, Bethesda, MD, USA
Corresponding author
Singh, Vijay K.
Venue
International Journal of Radiation Biology
Published
2021-08-31
Volume
97
Issue
11
Pages
1526-1547
ISSN
  • 0955-3002 (ISSN-L)
  • 1362-3095
OpenAlex
W3194663062
Cited by
88
References
118
Citations by year
2026: 14 · 2025: 22 · 2024: 15 · 2023: 21 · 2022: 14 · 2021: 1 · 2018: 1
FWCI
6.77
Type
journal article
Language
en
Open access
Locations
  • International Journal of Radiation Biology (publishedVersion, public-domain)
  • PubMed (publishedVersion)
Funders
Armed Forces Radiobiology Research Institute/Uniformed Services University of the Health Sciences
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Effects of Radiation Exposure
  • Health Sciences › Medicine › Hematology › Hematopoietic Stem Cell Transplantation
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Radiation Therapy and Dosimetry
Keywords
hematopoietic acute radiation syndrome, radiation countermeasures, radiation protection, recombinant growth factors, granulocyte colony-stimulating factor, GM-CSF, romiplostim, drug stockpiling, FDA-approved drugs
MeSH terms
Filgrastim, Humans, Radiation Protection, United States, United States Food and Drug Administration, Cytokines, Acute Radiation Syndrome

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