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@BiotechAnalysst $SGMO The initial plan is to use ZFA (Zinc Finger Activator) to activate the good copy of the gene (on X chromosome). STAC-BBB delivers ZFA to all neurons.
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#Astellas not buying $TSHA
re but $SGMO ?

Phoenix Biotech@BiotechAnalysst
$TSHA - Astellas + $SGMO RETT Wedbush: STAC-BBB Neuro Capsids
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@BiotechAnalysst Exactly! Delivery to the brain without general anesthesia and 10+ hours of surgery. It is possible to halt the disease completely!
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what if there was a possibility to #delivery therapies into all regions of the brain #without #surgery ?
wouldnt that be worth billions ?
re $SGMO #STAC_BBB
Adam Feuerstein ✡️@adamfeuerstein
$CLPT higher on $QURE results. ClearPoint sells the imaging equipment that allows the precise surgical implantation of the gene therapy into the brain.
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@Franca_ole $SGMO ST-920 exemplifies the critical importance of a safe AAV vector. ST-920 overexpresses alpha-GalA up to over 100x physiological concentrations, which enable the reversal of disease to certain extent. Strict correction of the mutation in the genome will not be able to.
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Early detection is important – gene therapy with $SGMO ST-920 cures!
Fabry disease is an X-linked lysosomal storage disorder in which α-galactosidase A deficiency leads to the accumulation of globotriaosylceramide (Gb3) in many tissues, including heart tissue. This leads to hypertrophy (thickening of the myocardium), fibrosis (scarring), arrhythmias and heart failure. Cardiac involvement can begin early, often before it is visible on an ECG or imaging. hs-cTn is a highly sensitive cardiac troponin or protein from heart muscle cells. Even very slight cell damage leads to a measurable increase in troponin in the blood. In genetically confirmed FD, serial hs-cTn measurement allows for the very early detection of myocardial damage, often years before structural changes become visible. This allows timely therapeutic intervention to prevent or slow down heart damage.
onlinelibrary.wiley.com/doi/10.1002/jm…

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@BiotechAnalysst @yusufhameed @ZinselmeyerB AAV vector type, production quality, targeting protein and its required expression level. Among them, dose (amount of AAV) is the most critical. Reasonable dose is pretty safe for most AAV vectors including AAV2/6. AAV5, AAV7, and AAV9.
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@BiotechAnalysst @yusufhameed @ZinselmeyerB It is always a challenge to target muscle cells. The newer AAV vectors from $SGMO, especially tranferin receptor binding one, could be advantageous. On the other hand, there are many factors impacting immune response.
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$SRPT should contact $SGMO ASAP for a better delivery option
#STAC
Zach Brennan@ZacharyBrennan
Updated: In a follow-up conversation on the safety study, the senior official said Sarepta could make a change to the dosing or manufacturing, and test it on the next 10 or 12 boys, and show the liver-related issues were improved
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@davidrliu @CellCellPress Better brain targeting vectors such as STAC-BBB could make it more efficient and less side-effect, especially liver toxicity. Impressive! $SGMO $PRME
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Today in @CellCellPress we report the use of prime editing to correct several mutations that cause alternating hemiplegia of childhood (AHC), a rare and devastating neurodevelopmental disorder, in patient-derived cells and in two mouse models.
drive.google.com/file/d/1ibC50t…
1/10

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@drsprs @adamfeuerstein $NGNE 3x10^15 vg AAV9 is just too much. Why not use newer generations of AAV9 from $VYGR or $SGMO. Might be able to use 100x less vg to achieve comparable neuronal expression.
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@adamfeuerstein Interesting that girl got 3x10^15 and registrational protocol dose is 1x10^15. Still high-ish.
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@zeusPharma Easy. They probably want/need the weekend to polish up their material for the call.
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