Mar 13 2024Johns Hopkins Medicine Targeting a non-encoding stretch of RNA may help shrink tumors caused by an aggressive type of brain cancer in children, according to new research in mice reported March 8 in Cell Reports by Johns Hopkins Kimmel Cancer Center investigators.
RNA acts as a template for building proteins based on instructions encoded in the DNA. Until recently, scientists thought 97% of RNA was "junk" because only 3% is used to build proteins. However, scientists have realized that RNA's nonprotein encoding stretches control gene expression.
When the team treated a mouse model of group 3 medulloblastoma with the experimental intravenous therapy, it reduced tumor growth by 40%–50%. Adding cisplatin, a chemotherapy drug currently used to treat medulloblastomas, alongside the new therapy caused the tumors to shrink even more and prolonged the animals' survival. The combination therapy extended the animals' lives by about 84 days compared with a 44-day increase in survival on lnc-HLX-2-7 alone.
Source: Healthcare Press (healthcarepress.net)
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