cell therapy
CAR-T therapy shows efficacy in lupus, autoimmune disease
Medicines for autoimmune disease continue to grow more sophisticated, but some patients continue to fall through the cracks. A systematic review in The Lancet outlines how CAR-T therapies can target autoimmune disease, particularly in patients who don't respond to monoclonal antibodies like Rituxan. Autoreactive B cells play a prominent role in diseases like lupus, rheumatoid arthritis, and multiple sclerosis.
Since CAR-T therapies have proven so effective in treating B-cell cancers, scientists have been exploring how to sic engineered T-cells at autoreactive B cells. This has actually triggered "a complete clinical and serological remission of refractory systemic lupus erythematosus and dermatomyositis."
CRISPR
Algorithm unveiled CRISPR 'treasure trove'
CRISPR pioneer Feng Zhang has unveiled a new algorithm in Science that can sort through millions of genomes to find new types of potential gene editing tools. "We are just amazed at the diversity of CRISPR systems," Zhang told Nature. "Doing this analysis kind of allows us to kill two birds with one stone: both study biology and also potentially find useful things."
Thus far, scientists have found six forms of CRISPR, which can recognize, bind to, and cut DNA or RNA in different ways. Zhang and his coworkers developed an algorithm called FLSHclust, which analyzes genetic sequences available in public databases that house hundreds of thousands of genomes from bacteria and archaea. It found CRISPR-associated genes by seeking out similarities between genetic sequences, and clustering them together. They found about 130,000 genes associated with CRISPR, and 188 have never been seen before. They discovered an entirely novel CRISPR system that targets RNA, which is exceedingly rare in nature.
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