Tune Therapeutics is a genetic-medicine company building tools to turn genes up or down without cutting DNA. Its TEMPO epigenetic-editing platform tunes gene expression the way a sound engineer rides a fader - reversible, programmable, and precise. Spun out of Duke's Gersbach Lab, Tune raised over $175M in Series B financing in January 2025 and is running first-in-human trials of TUNE-401, an epigenetic silencer for chronic hepatitis B, with the larger ambition of editing the genome's software to extend human healthspan.
Alex Aravanis is the CEO and co-founder of Moonwalk Biosciences, a precision epigenetics company he launched in 2024 with $57 million and Broad Institute scientist Feng Zhang. An engineer-turned-physician with degrees from UC Berkeley and Stanford, he co-founded the cancer early-detection company GRAIL, later returned to Illumina as Chief Technology Officer, and now wants to rewrite the 'software of the genome' without cutting a single strand of DNA.
Elysium Health is a New York-based cellular health company that turns peer-reviewed aging research into consumer products. Founded in 2014 by entrepreneur Eric Marcotulli, operator Dan Alminana, and MIT aging biologist Leonard Guarente, it pairs a scientific advisory board stacked with Nobel laureates with a direct-to-consumer model. Its flagship supplement Basis raises NAD+ levels tied to cellular energy, and its Index test estimates biological age from a saliva sample using epigenetic methylation analysis.
Moonwalk Biosciences is a San Francisco Bay Area biotech building precision epigenetic medicines. Co-founded by former Illumina CTO Alex Aravanis and CRISPR pioneer Feng Zhang, the company pairs whole-genome, single-cell epigenome mapping with AI-guided 'read-and-write' epigenetic editing tools that reprogram cells to a healthy state without cutting or altering the underlying DNA. Launched out of stealth in January 2024 with $57 million in seed and Series A funding, Moonwalk aims to file its first IND within a few years.
Srini Akkaraju, MD/PhD, is the Founder and Managing General Partner of Samsara BioCapital, a Palo Alto-based venture capital firm he founded in 2016 to translate cutting-edge biology into transformative therapeutics. With a Stanford MD/PhD in Immunology and a computer science foundation from Rice University, Akkaraju has spent over 25 years at the intersection of science and capital - from corporate development at Genentech to partnership roles at J.P. Morgan Partners, Panorama Capital, New Leaf Venture Partners, and Sofinnova Ventures. Samsara has built a portfolio of 93+ companies with 32 IPO exits, backing breakthroughs in immunotherapy, cell therapy, kidney disease, and gene therapy. His conviction-driven approach is evident in moves like a $19M personal stake in Scholar Rock, and his belief that biotech is entering an 'unbelievable innovation cycle' over the next two to three decades.
John McHutchison, AO, MD is the CEO and Chairman of Tune Therapeutics, a pioneering epigenome editing company based in Durham, NC. An internationally acclaimed hepatologist and drug developer, McHutchison spent nearly a decade at Gilead Sciences as Chief Scientific Officer, where he led the development of transformative hepatitis C cures used by over 3.2 million people worldwide, including Sovaldi and Harvoni. Now at Tune, he is steering the company's TEMPO epigenome editing platform toward a new era of precision medicine for chronic and complex diseases.
Elaine Cheung is Chief Business Officer at Moonwalk Biosciences, a South San Francisco biotech backed by $57 million in funding and co-founded by CRISPR pioneer Feng Zhang and former Illumina CTO Alex Aravanis. With 20+ years navigating the inflection points of genomic medicine - from spinning GRAIL out of Illumina, helping architect its $900M+ Series B, and steering Lyell Immunopharma through its IPO - Cheung brings a rare combination of scientific literacy and deal-making precision. At Moonwalk, she is helping build the business infrastructure for a company that has pivoted from epigenetic editing to siRNA-based therapeutics targeting adipose biology and obesity.
Jorge F. DiMartino, M.D., Ph.D., is Chief Medical Officer and Executive Vice President of Clinical and Translational Development at Plexium, a San Diego-based biotech pioneering targeted protein degradation. A physician-scientist trained in genetics, immunology, and pediatric oncology across UC Berkeley, Cornell, UC San Diego, and Stanford, DiMartino has spent over two decades advancing cancer drugs from bench to bedside. His fingerprints are on three now-marketed therapies: vismodegib, venetoclax, and enasidenib - each a breakthrough in its own right. At Plexium, he oversees clinical programs targeting SMARCA2, IKZF2, CDK2, and CRAF using the company's DELTA Discovery platform, a novel approach to degrading proteins previously considered undruggable.
Gregory L. Verdine is a Harvard-trained chemical biologist who coined the phrase 'drugging the undruggable' and built an empire around it. The Erving Professor Emeritus at Harvard University, he co-invented stapled peptides, pioneered the field of chemical biology, and founded or co-founded more than a dozen biotech companies - several of which reached the Nasdaq and three of which produced FDA-approved drugs. In July 2023 he joined Andreessen Horowitz as a Venture Partner on the Bio + Health team, bringing his rare combination of deep scientific discovery, serial entrepreneurship, and capital deployment to one of Silicon Valley's most influential venture firms.
Thomas J. Cahill, MD, PhD is the founder and managing partner of Newpath Partners, a Boston-based life sciences venture firm he built from the ground up to translate breakthrough academic science into medicines. A structural biologist trained under two Nobel laureates, Cahill has co-founded more than a dozen biotech companies — including Prime Medicine, Chroma Medicine, and Autobahn Therapeutics — and became one of the pandemic's most consequential behind-the-scenes operators when he assembled Scientists to Stop COVID-19, a coalition that fed curated research directly to the White House and helped redirect Regeneron's manufacturing to Dublin.