Two studies published back to back in Nature have looked at the accumulation of mutations in blood-forming stem cells with age, gaining new insights into how the overall landscape of such cells changes across the lifespan. 

The world’s largest genomics study in patients with life-threatening COVID-19 infections has uncovered 16 new genetic variants associated with severe disease and drawn up a roadmap for research into new therapies and diagnostics. The research involved comparing the complete genome sequences of 7,491 patients admitted to 224 intensive care units in the U.K. against those of 48,400 participants in Genomics England’s 100,000 Genomes project, and of a further 1,630 people who had mild COVID-19. While some of the gene variants found in the Genomicc study affect the function of a protein, others influence the amount of the protein that is expressed. An example is mucin-1, where overexpression led to worse outcomes.

Cancer diagnostics company Biofidelity Ltd. reported a $23 million series A+ investment round, led by Octopus Ventures with participation from SBI Investment Co. Ltd. and existing investors. Funds will be used for the commercial launch of the company’s first commercial assay Asypre-Lung. The oncology panel is designed to detect DNA mutations from tissue or liquid biopsy quicker than current approaches like gene sequencing.

Sema4 Holdings Corp. sent a bold message to the market with a definitive agreement to acquire Genedx Inc. from Opko Health Inc. for $623 million. The deal comes as Sema4 winds down its COVID-19 testing by the end of March. The company has been one of the largest testing organizations in Connecticut since its first contract in May 2020, but has lately come under scrutiny because of an investment by Annie Lamont, the governor’s wife.

2021 may mark the beginning of a new phase in treatment of depression. While genetic matching of depression therapies to patients has been touted for a decade, meta-analyses have not supported claims of improved response rates with studies often finding that any improvements seen likely came from switching patients to guideline-recommended therapies rather than any insight from genetics.

Color Health Inc. followed its rainbow to another pot of gold, collecting $100 million in a series E financing round led by Kindred Ventures and funds advised by T. Rowe Price Associates Inc. Returning funding round participants also included General Catalyst, the company’s long-time lead investor, Viking Global Investors and Emerson Collective. With the latest cash infusion, the company’s total funds raised to date reached $378 million and its valuation of $4.6 billion propelled it into the top dozen health care unicorns. Founded in 2017 as Color Genomics, the Burlingame, Calif.-based company has raised more than two-thirds of its total funding this year with today’s series E following the close of a $167 million series D round in January.

Oncology genomic testing company Berry Oncology Corp.’s latest research results showed promising data for its Hifi platform-based technology, its CEO Jun Zhou said during the first International Biopharma Industry Week held in Shanghai. With the Hifi liquid biopsy test, users can receive early screening of six cancers, including liver cancer, lung cancer, gastric cancer, colorectal cancer, esophageal cancer, and pancreatic cancer, with an overall sensitivity of 87.6%, specificity of 99.1%, and overall tissue of origin precision in 82% of positive cancers.

Precision medicine company My Next Health Inc. (MNH) has guaranteed a $150 million equity capital commitment from Global Emerging Market (GEM), a $3.4 billion Luxembourg-based private investment group. MNH was formed in May 2020 due to a merger between functional genomics company The DNA Company and digital therapeutics platform My Pain Sensei. The New York-based company is developing genomics-based health management applications that offer patients personalized genetic insights.

Berry Oncology Corp. raised $99.15 million in a series B1 financing round to expand in the early cancer screening industry as it is seeing a growing demand in the sector. This brings the total capital raised to what it says is “the highest level in China’s early cancer screening industry.” The round was led by China Merchants Capital Management Co. Ltd., along with existing investors Qiming Venture Partners and Legend Capital.