Vanja Tepavcevic
@tepavcevicvanja.bsky.social
390 followers 290 following 52 posts
Neurobiologist.Oligodendrocytes/myelin/remyelination/energy metabolism.
Posts Media Videos Starter Packs
Pinned
tepavcevicvanja.bsky.social
Interested in #oligodendrocyte metabolism and/or #multiplesclerosis? Our paper is now at Biorxiv! We show that oligos express MCT2, the high affinity monocarboxylate transporter, well known for supplying neurons with astrocyte-derived lactate (astro-neuron lactate shuttle)👇
biorxiv-neursci.bsky.social
Monocarboxylate transporter 2 is required for the maintenance of myelin and axonal integrity by oligodendrocytes https://www.biorxiv.org/content/10.1101/2025.01.10.632306v1
tepavcevicvanja.bsky.social
Another evidence for lactate influx, not efflux, in neurons. However, it suggests that in neonates, where levels of circulating lactate are high, lactate used by neurons is blood-derived, and that neonatal astrocytes might also use lactate.
www.nature.com/articles/s41...
Neuronal MCT2 promotes angiogenesis via lactate in the developing mouse neocortex - Cell Death & Differentiation
Cell Death & Differentiation - Neuronal MCT2 promotes angiogenesis via lactate in the developing mouse neocortex
www.nature.com
Reposted by Vanja Tepavcevic
biorxiv-neursci.bsky.social
Prenatal Acetaminophen Exposure Does Not Disrupt Human Fetal Brain Development in Cortical Organoid Models https://www.biorxiv.org/content/10.1101/2025.10.07.681041v1
Reposted by Vanja Tepavcevic
saobettencourt.bsky.social
Interested in #epigenetics #DNAmethylation #omics #Dementia #oligodendrocytes? Join us tomorrow👇
saobettencourt.bsky.social
🚨Join our next @DEMONNetworkUK #Genetics and #Omics meeting on THURSDAY 9th October at 2.30 PM (UK Time). Delighted to have Kate Fodder‬ as invited speaker – “Early #oligodendrocyte dysfunction signature in #Alzheimer’s disease: Insights from DNA #methylomics and #transcriptomics”.
DM for more info
Reposted by Vanja Tepavcevic
Reposted by Vanja Tepavcevic
biorxiv-neursci.bsky.social
GlialCAM Cytoplasmic Signaling in Oligodendrocytes and Astrocytes is Essential for White Matter Homeostasis in the Brain https://www.biorxiv.org/content/10.1101/2025.10.03.680331v1
Reposted by Vanja Tepavcevic
plosbiology.org
What role does #myelination play in #PrefrontalCortex development? This study shows that juvenile #demyelination disrupts PV #interneuron firing & self-inhibition, revealing a developmental window where myelination is essential for long-term cortical function @plosbiology.org 🧪 plos.io/4mI4lVO
Left: An example image of a filled PV interneuron showing putative autapses with white arrows. Note that all autapses are present in close distance to the soma. Right: Pie charts depicting the percentage of cells showing (1) both structural and physiological autapses, (2) no structural nor physiological autapses, and (3) only structural autapses. Note that only mice that underwent juvenile demyelination have PV interneurons which show structural autapses but no autaptic response.
Reposted by Vanja Tepavcevic
plosbiology.org
How are #circadian rhythms established during development? This study shows that maternal metabolic signals oscillate in the fetal #SCN before the endogenous #clock becomes functional, offering a plausible mechanism for maternal entrainment of the developing clock @plosbiology.org 🧪 plos.io/3VD45fZ
Rhythmic metabolites in the E19 SCN peak during the day. Majority of rhythmic lipids and polar metabolites in the E19 SCN peak during the day, while there are more diverse phase clusters in the developed P28 SCN postweaning. Polar metabolites and lipids identified as rhythmic in E19 SCN (E19 clusters 1, top, and 2, bottom) were divided into subgroups based on hierarchical K-means clustering. Line plots on the left show traces of the normalized level of each rhythmic compound in each corresponding cluster. Bar plots on the right represent the lipid classes and polar metabolites in each rhythmic cluster.
Reposted by Vanja Tepavcevic
neurosarah.bsky.social
NeuroMAP @neuromarseille.bsky.social @univ-amu.fr organise une visite de laboratoire sur le campus de la Timone le 14 Novembre ! Venez rencontrer nos chercheurs 👩🏻‍🔬🧑🏽‍🔬

neuro-marseille.org/events/journ...
Matinée NeuroMAP – Visite de laboratoire | NeuroMarseille
neuro-marseille.org
Reposted by Vanja Tepavcevic
biorxiv-neursci.bsky.social
Progenitor Timing Shapes NG2-Glia Fate and Oligodendrocyte Differentiation https://www.biorxiv.org/content/10.1101/2025.09.24.678191v1
Reposted by Vanja Tepavcevic
plosbiology.org
How do different tissues respond to mitochondrial dysfunction? @candrewfrank.bsky.social &co show that Complex I depletion triggers ROS-driven compensatory signaling in #MotorNeurons, but degeneration in muscles, with implications for #MitochondrialDisease @plosbiology.org 🧪 plos.io/4nLUIGJ
Left: Image of the Drosophila melanogaster third instar larval ventral nerve cord used to examine mitochondrial morphology. Green fluorescence labels neuronal mitochondrial clusters decorated by a transgenically expressed Mito-GFP protein. Magenta fluorescence labels the Drosophila Bruchpilot protein, a component of active zones. Image credit: Bhagaban Mallik. Right: Image of synaptic boutons at the Drosophila melanogaster third instar larval neuromuscular junction rendered into three dimensions to quantify volumes of synaptic mitochondria. Green fluorescence labels neuronal mitochondria localized to the presynaptic boutons. Mitochondria are decorated by a transgenically expressed Mito-GFP protein. Magenta fluorescence labels the Drosophila Discs Large protein, an organizer of the postsynaptic density in the muscle. Image credit: Bhagaban Mallik and Thomas Moninger.
Reposted by Vanja Tepavcevic
plosbiology.org
Despite recent advances in green genetically encoded #potassium indicators (GEPOs), red-shifted GEPOs have been slower to come. @piatkevich.bsky.social &co present 2 new red #fluorescent #indicators for visualizing neuronal K+ dynamics in culture & in mice @plosbiology.org 🧪 plos.io/42niaSz
Top: Representative single-plane images showing co-expression of RGEPO1/2 and GCaMP6f in layer 2/3 neurons of the primary somatosensory cortex. Bottom: Top panel: Representative individual (light green and light red) and averaged (green and red) fluorescence responses of GCaMP6f and RGEPO1 during KA-induced seizures and subsequent spreading waves. Middle and bottom panels: Vertical projections of fluorescence profiles from neurons expressing GCaMP6f and RGEPO1 during KA-induced seizures and subsequent spreading waves.
Reposted by Vanja Tepavcevic
plosbiology.org
Hexokinase 2 (HK2) is known for its metabolic role in #glycolysis. This study shows that it also functions as an #RNAbindingProtein that regulates mRNA translation, particularly of SOX10, promoting #melanoma cell proliferation independently of glycolysis @plosbiology.org 🧪 plos.io/3ViI1qL
AlphaFold model of the complex formed between HK2 and the SOX10 5′UTR (189–204 nts). The predicted RNA structure is shown in cyan, and HK2 protein is shown in green. HK2 residues and SOX10 mRNA nucleotides at the interaction interface are highlighted in red. Inset: schematic representation of the secondary structure of the SOX10 5′UTR (189–204 nts) predicted by Mfold, with the putative HK2-binding region (194–198 nts) marked in red.
Reposted by Vanja Tepavcevic
Reposted by Vanja Tepavcevic
brunetlab.bsky.social
Exciting meeting in beautiful Ascona, Switzerland!!
Reposted by Vanja Tepavcevic
biorxiv-neursci.bsky.social
Spatial transcriptomics of compartmentalised inflammation in a natural disease multiple sclerosis cohort. https://www.biorxiv.org/content/10.1101/2025.09.10.675210v1
Reposted by Vanja Tepavcevic
haoyin.bsky.social
AAV-BI30, an endotheliotropic #AdenoAssociatedVirus for transducing vascular tree in #CentralNervousSystem Brain/Retina/Spinal Cord

👉>AAV-BR1 esp. in artery/vein

👉Also transduce #EndothelialCell in #Aorta/Liver/Lung/Kidney

@natcardiovascres.nature.com 2022
pmc.ncbi.nlm.nih.gov/articles/PMC...