2016
Measles to the Rescue: A Review of Oncolytic Measles Virus
Richard K. Plemper, Academic Editor
This article has been cited by other articles in PMC.
Abstract
Oncolytic
virotherapeutic agents are likely to become serious contenders in
cancer treatment. The vaccine strain of measles virus is an agent with
an impressive range of oncolytic activity in pre-clinical trials with
increasing evidence of safety and efficacy in early clinical trials.
This paramyxovirus vaccine has a proven safety record and is amenable to
careful genetic modification in the laboratory.
Overexpression of the
measles virus (MV) receptor CD46 in many tumour cells may direct the
virus to preferentially enter transformed cells and there is increasing
awareness of the importance of nectin-4 and signaling lymphocytic
activation molecule (SLAM) in oncolysis. Successful attempts to retarget
MV by inserting genes for tumour-specific ligands to antigens such as
carcinoembryonic antigen (CEA), CD20, CD38, and by engineering the virus
to express synthetic microRNA targeting sequences, and “blinding” the
virus to the natural viral receptors are exciting measures to increase
viral specificity and enhance the oncolytic effect.
Sodium iodine
symporter (NIS) can also be expressed by MV, which enables in vivo
tracking of MV infection. Radiovirotherapy using MV-NIS,
chemo-virotherapy to convert prodrugs to their toxic metabolites, and
immune-virotherapy including incorporating antibodies against immune
checkpoint inhibitors can also increase the oncolytic potential.
Anti-viral host immune responses are a recognized barrier to the success
of MV, and approaches such as transporting MV to the tumour sites by
carrier cells, are showing promise. MV Clinical trials are producing
encouraging preliminary results in ovarian cancer, myeloma and cutaneous
non-Hodgkin lymphoma, and the outcome of currently open trials in
glioblastoma multiforme, mesothelioma and squamous cell carcinoma are
eagerly anticipated.
Keywords: measles virus, oncolytic, virotherapy
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