Study Reveals Human Brain Develops From Two Independent Progenitor Cells
A Stanford-led study published in Nature Neuroscience on September 18, 2026, demonstrates that the human brain originates from two distinct progenitor cell lines rather than a single unified source. Researchers found that the forebrain and hindbrain develop independently during embryonic gastrulation, a finding that explains why hindbrain neurons have been difficult to cultivate in labs. This discovery enables the first successful generation of human hindbrain motor neurons, offering new avenues for studying spinal muscular atrophy and ALS.