Cholesterol, ALS, and Neuroscience: Luis Fernando Beltrán’s PhD Defense Marks a Milestone at Scorrochano Lab

At Scorrochano Lab, science never stops, and there is no greater celebration than welcoming a new Doctor to the scientific world! We are ecstatic to announce that our esteemed researcher, Luis Fernando Beltrán, has successfully defended his doctoral dissertation: “STUDY OF LIPID ALTERATIONS IN THE hSOD1G93A MURINE MODEL AND THE MODULATION OF CHOLESTEROL METABOLISM AS A THERAPEUTIC TARGET”, co-directed by Dr. Silvia Corrochano and Dr. Jorge Matías-Guiu.

The Science Behind the Thesis: Decoding Brain Lipids in Motor Neuron Disease

Amyotrophic Lateral Sclerosis remains one of neurology’s greatest challenges. Luis Fernando’s thesis addresses this complexity by focusing on the metabolic architecture of the central nervous system, particularly the homeostatic regulation of lipids and sterols.

Neurons depend entirely on locally synthesized cholesterol produced predominantly by astrocytes and oligodendrocytes. Cholesterol is essential for building synaptic vesicles, anchoring ion channels, and assembling myelin sheaths that insulate motor axons.

Luis Fernando’s experimental work revealed profound disruptions in both cholesterol biosynthesis and its clearance into 24S-hydroxycholesterol within the spinal cords of hSOD1G93A mice. By mapping these changes across presymptomatic, symptomatic, and terminal stages, his thesis establishes a definitive timeline of lipid dysfunction, proving that defective sterol homeostasis is deeply intertwined with motor neuron degeneration.

Why This Milestone Matters for Biomedical Innovation

Luis Fernando’s defense carries profound significance:
– Reframing ALS Pathophysiology: Shifting scientific attention toward early metabolic and lipidic failure alongside traditional neuroinflammatory mechanisms.
– Directing Future Clinical Trials: Providing rigorous preclinical evidence that restoring lipid balance can protect neuromuscular junctions and prolong survival in preclinical models.
– Excellence in Research Mentorship: Reflecting the fruitful collaborative leadership between Dr. Silvia Corrochano and Dr. Jorge Matías-Guiu, blending basic neurobiology with clinical neurology.

The Spirit of the Lab: Fostering Young Scientific Leaders

A doctoral defense represents years of meticulous benchwork, troubleshooting complex assays, and analyzing demanding datasets. Luis Fernando has enriched our lab not only with his scientific rigor, but also with his collaborative generosity, mentoring junior students, and fostering a warm team culture. Congratulations Dr. Luis Fernando Beltrán!