The SENSible Blog discusses the development of rejuvenation biotechnology around the world: progress being made in the field of longevity, the design of medical therapies to cure, reverse and prevent the diseases and disabilities of aging, and much more.

Our content is a blend of popular interest articles – labelled “Easy Reads”, and designed to require no specific background knowledge – as well as more detailed scientific commentaries, labelled as “In-Depth” and aimed towards readers with some grounding in the biological/medical sciences.

In-Depth

Zscan4: The Possible Basis of ALT

In addition to telomerase, some cancer cells become immortalised via the phenomenon known as ALT (“Alternative Lengthening of Telomeres”). A new paper published in Nature suggests that Zscan4, a gene essential for telomere maintenance in embryonic stem cells, may be the driver of the ALT mechanism.

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In-Depth

Allotopic Expression of Yeast COX2: A New Leap Forward for MitoSENS

To date, three of the thirteen OXPHOS genes still encoded in the mitochondria have been allotopically expressed (AE) in human cells with mutated versions of the same gene, thereby rescuing a respiratory defect. Now we have the first report of a new gene, COX2, being allotopically expressed in yeast, by mutating the gene to overcome the hydrophobicity of the mitochondrial membrane; a similar mutation has been shown to underlie the ability of the unusual case of the soybean COX2, which is a case of a native nuclear-encoded COX2 gene.

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In-Depth

Refining Intravenous IgG Pools for AD Immunotherapy

Intravenously delivered immunoglobulin G (IVIgG) is a mixture of antibodies extracted from human blood which has demonstrated promising preliminary results in clearing the beta-amyloid (Abeta) deposits that drive the pathogenesis of Alzheimer’s disease. A recent study compares multiple commercial sources of IVIgG and finds significant differences in their Abeta-binding activity, suggesting that results from impending clinical trials are likely to be highly dependent on the specific “brand” of IVIgG in use.

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