Humans love to think of our species as unique. But on a genetic level, such uniqueness is surprisingly hard to find. And while that may be a blow to the ego, it also means that an evolutionary lens is one way to search for insights into human diseases. Animals are “adapted to use the same genes that you and I have, but in very different ways,” Ashley Zehnder told BioWorld. Zehnder is co-founder and CEO of Fauna Bio Inc., which uses comparative genomics to identify gene networks that underlie disease resistance in different animal species.
If we unraveled the DNA of the 46 chromosomes of a single human cell, it would barely measure 2 meters. If we did the same with the rest of the body, if we aligned the 3 billion base pairs of its 5 trillion cells, we could travel the distance from the Earth to the Sun more than 100 times. It seems unreachable. However, that is the unit of knowledge of the large sequencing projects achieved in 2023. From the generation of the human pangenome to cell-by-cell maps of the brain and kidneys, scientists this year have completed several omics collaborative projects stored in large international databases. Now, what’s the plan?
Launching a company based on knowledge that “the fundamental principle that most people hold to be true is off by a trillion” is a rare opportunity, said Jake Rubens, co-founder and president of Quotient Therapeutics Inc., a company that emerged from stealth this week, backed by two years of platform development and a $50 million investment from Flagship Pioneering.
The human genome, the sequence that represents the DNA of our species, was built with a single individual as a model. This all-in-one standard didn’t include the gene variations that make us different or explain why some people develop certain diseases. Four simultaneous studies from the Human Pangenome Reference Consortium have published a sequence based on 47 individuals, beginning to capture the genetic diversity that defines humans.
Data on the prevalence of diabetes in the U.S. show that non-Hispanic white people are least likely to suffer from the disease. Yet to date most genetic studies of the glycemic traits that are used to diagnose and monitor type 2 diabetes and cardiometabolic health have focused on individuals of European ancestry.
Researchers at Yale University have described what they have called a “data sanitization tool,” enabling them to strip personal identifiers out of functional genomics data while preserving their usefulness for research.
The Genotype-Tissue Expression (GTEx) project, a multiyear, multi-institutional attempt to catalog how expression quantitative trait loci (eQTL) and splicing quantitative trait loci (sQTL) affect protein levels, reported data from its final phase in 15 papers in the Sept, 10, 2020, online issues of the Science and Cell family of journals, as well as in Genome Biology.
Researchers from the Encyclopedia of DNA Elements (ENCODE) consortium reported data from the third phase of the project. Phase III data, which were published in more than a dozen papers in Nature and its sister journals on July 29, 2020, consisted of 6,000 experiments performed on around 1,300 samples.
LONDON – A vast new body of genomics research has identified thousands of rare genetic variants that are predicted to cause loss of function in protein coding genes, providing novel in vivo models of human gene inactivation.
LONDON – The U.K. is launching a £28 million (US$34.5 million) project to sequence the whole genome of every COVID-19 patient in the country treated in intensive care, with the aim of uncovering host genetic factors that lead some people to be more severely affected by the infection. The study will involve up to 20,000 people currently or previously treated in one of 170 intensive care units (ICUs), whose genomes will be compared to 15,000 people with a confirmed infection who had mild or moderate symptoms.