Rejuvenation Technologies, a biotechnology company developing mRNA-based therapeutics to address mechanisms of aging, announced a $10.6M seed financing round led by Khosla Ventures. Shanda Ventures, Asymmetry Ventures, Merchant Adventures, Longevity Tech Fund, and Y Combinator also participated in the round. The company has also raised $4.6M in grant funding, bringing the total amount raised to $15.2M.