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tag microbiology techniques disease medicine gene silencing

DNA molecule.
Finding DNA Tags in AAV Stacks
Mariella Bodemeier Loayza Careaga, PhD | Mar 7, 2024 | 8 min read
Ten years ago, scientists put DNA barcodes in AAV vectors, creating an approach that simplified, expedited, and streamlined AAV screening. 
Blue 3D illustration of X-shaped chromosomes
X Chromosome Silenced in Some Cancers in Males
Natalia Mesa, PhD | Nov 11, 2022 | 3 min read
A study finds that XIST, the gene that shuts down one X chromosome in people who have two, is linked to cancer in males. 
Haydeh Payami is wearing a purple dress and an orange and pink scarf and standing in front of a whiteboard.
A Microbial Link to Parkinson’s Disease
Mariella Bodemeier Loayza Careaga, PhD | Dec 4, 2023 | 6 min read
Haydeh Payami helped uncover the genetic basis of Parkinson’s disease. Now, she hopes to find new ways to treat the disease by studying the gut microbiome.
bacteria and DNA molecules on a purple background.
Engineering the Microbiome: CRISPR Leads the Way
Mariella Bodemeier Loayza Careaga, PhD | Mar 15, 2024 | 10+ min read
Scientists have genetically modified isolated microbes for decades. Now, using CRISPR, they intend to target entire microbiomes.
T regulatory cell in red sandwiching an antigen presenting cell in blue
Gut Bacteria Help T Cells Heal Muscle: Study
Natalia Mesa, PhD | Mar 14, 2023 | 4 min read
Regulatory T cells in the colon travel to muscles to promote wound healing in mice, raising questions about how antibiotics may impact injury recovery.
Illustration showing the upper part of a human body connected to a DNA helix
Unraveling the Mystery of Zombie Genes
Iris Kulbatski, PhD | Oct 31, 2023 | 6 min read
Digging into how and why some genes are resurrected after death sounds morbid, but it has practical applications. 
Microscope image of A549-ACE2 lung cells coinfected with SARS-CoV-2 and a reporter vector containing a key regulatory variant of interest in the region on human chromosome 3
How Genes from Neanderthals Predispose People to Severe COVID-19
Alakananda Dasgupta | Feb 22, 2023 | 4 min read
Researchers dissect the Neanderthal-derived region on chromosome 3 that drives severe COVID-19 to zero in on the key causal variants.
The Second Coming of RNAi
Eric Bender | Sep 1, 2014 | 10+ min read
Now showing clinical progress against liver diseases, the gene-silencing technique begins to fulfill some of its promises.
Silencing Cancer
Jack Lucentini | Sep 12, 2004 | 6 min read
DELIVERY METHODS:© 2003, Elsevier ScienceSmall interfering RNAs (siRNAs) may be synthesized and then transfected into cells (A), or generated by the RNAase activity of Dicer (B) on short hairpin RNAs (shRNAs) transcribed in vivo (C). Transfection (D) and integration (E) of plasmid DNA containing a selectable marker and a promoter to drive shRNA expression are used to generate a stable cell line. Alternatively, DNA encoding shRNA may be introduced by viral-mediated transduction (D). siRNAs (
Using CRISPR to Edit Genes in Induced Pluripotent Stem Cells
Kelly Rae Chi | Sep 1, 2016 | 8 min read
Tips on how to surmount the challenges of working with CRISPR to manipulate genes in human stems cells to study their function in specific diseases or to correct genetic defects in patient cells.

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