Format

Send to

Choose Destination
Curr Drug Deliv. 2011 Jan;8(1):26-44.

Radioimmunotherapy of solid tumors: searching for the right target.

Author information

1
Division of Nuclear Medicine, Russell H. Morgan, Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland 21231, USA. hsong6jhmi.edu

Abstract

Radioimmunotherapy of solid tumors remains a challenge despite the tremendous success of ⁹⁰Y ibritumomab tiuxetan (Zevalin) and ¹³¹I Tositumomab (Bexxar) in treating non-Hodgkin's lymphoma. For a variety of reasons, clinical trials of radiolabeled antibodies against solid tumors have not led to responses equivalent to those seen against lymphoma. In contrast, promising responses have been observed with unlabeled antibodies that target solid tumor receptors associated with cellular signaling pathways. These observations suggest that anti-tumor efficacy of the carrier antibody might be critical to achieving clinical responses. Here, we review and compare tumor antigens targeted by radiolabeled antibodies and unlabeled antibodies used in immunotherapy. The review shows that the trend for radiolabeled antibodies under pre-clinical development is to also target antigens associated with signaling pathways that are essential for the growth and survival of the tumor.

PMID:
21034423
PMCID:
PMC4337879
DOI:
10.2174/156720111793663651
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Bentham Science Publishers Ltd. Icon for PubMed Central
Loading ...
Support Center