A team at the Hebrew University of Jerusalem and Believer Meats reported a method to immortalize bovine cells without genetic modification, published in Nature. The investigators activated telomerase and PGC1α pathways to extend replicative capacity and restore mitochondrial function, producing stable, self‑renewing bovine fibroblast lines suitable for scaled cultivated‑meat production. The non‑GM approach addresses regulatory sensitivity and potential consumer resistance while lowering technical barriers for large‑mammal cell sourcing. Study lead Yaakov Nahmias and Believer Meats position the discovery as a scalable and safety‑oriented platform that could accelerate cultivated beef commercialization. Food‑tech investors and regulatory agencies will watch how non‑genetic immortalization affects approval pathways and supply‑chain models for cultured meat.