ArticleMolecular neurobiology2020
The Sigma-2 Receptor/TMEM97, PGRMC1, and LDL Receptor Complex Are Responsible for the Cellular Uptake of Aβ42 and Its Protein Aggregates.
Article in Molecular neurobiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
49 citing papers in PubMed, 1 synthesis or guideline pooled it, 77 citations in OpenAlex.
- CT1812 biomarker signature from a meta-analysis of CSF proteomic findings from two Phase 2 clinical trials in Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024Pooled it
- Preclinical and clinical biomarker studies of CT1812: A novel approach to Alzheimer's disease modification.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2021Trial
- TMEM97 regulates cholesterol biosynthesis and mitochondrial metabolism in gastric carcinoma.iScience · 2026Article
- Small Molecule Therapeutics Targeting Amyloid-β in Alzheimer's Disease: Mechanisms, Clinical Progress, and Future Strategies.Experimental neurobiology · 2026Review
- Targeting Sigma-1 and Sigma-2 Receptors in Neuropathic Pain: Pharmacology, Ligand Development, and Translational Progress.Brain sciences · 2026Review
- From General-Purpose to Disease-Specific Features: Aligning LLM Embeddings on a Disease-Specific Biomedical Knowledge Graph for Drug Repurposing.bioRxiv : the preprint server for biology · 2026Article
- Dual sigma receptor 1 and 2 modulator improves memory behavior in mouse model of age-related cognitive decline.The Journal of pharmacology and experimental therapeutics · 2026Article
- Sigma-1 and Sigma-2 receptors exhibit divergent genome-wide Co-expression architectures in human brain despite shared subcellular localization.Frontiers in pharmacology · 2026Article
- Assessing outer retinal and choroidal changes in scd: potential for high-risk screening using SS-OCTA.Translational psychiatry · 2025Article
- Veraguamide E, a Marine Cyanobacterial Depsipeptide Targeting σJournal of natural products · 2025Article
- Asymmetric Dynamics Between the Protomers of the σ2 Receptor Homodimer.Journal of chemical information and modeling · 2025Article
- Transmembrane Protein 97 (TMEM97): Molecular Target and Treatment in Age-Related Macular Degeneration (AMD).Biomolecules · 2025Review
- Hypercholesterolemia drives microglial dysfunction and weakens response to amyloid plaques.Experimental neurology · 2025Article
- Sigma‑2 Receptor/Transmembrane Protein 97 in Pain Modulation: Tracing Historical Roots and Current Research Directions.ACS pharmacology & translational science · 2025Review
- Neurosteroids Progesterone and Dehydroepiandrosterone: Molecular Mechanisms of Action in Neuroprotection and Neuroinflammation.Pharmaceuticals (Basel, Switzerland) · 2025Review
- Nrf2/Bach1 signaling axis: A promising multifaceted therapeutic strategy for Alzheimer's disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025Review
- TMEM97 governs partial epithelial-mesenchymal transition of retinal pigment epithelial cells via the CTNND2-ADAM10 axis.Molecular therapy. Nucleic acids · 2025Article
- Pathways underlying selective neuronal vulnerability in Alzheimer's disease: Contrasting the vulnerable locus coeruleus to the resilient substantia nigra.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
- Ternary Complex Components Responsible for Rapid LDL Internalization as Biomarkers for Breast Cancer Associated with Proliferation and Early Recurrence.Cancer research communications · 2025Article
- Advancing depression treatment: the role of sigma receptor ligands.Frontiers in neuroscience · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
Our lab has recently shown that the Sigma-2 Receptor/Transmembrane Protein 97 (TMEM97) and Progesterone Receptor Membrane Component 1 (PGRMC1) form a complex with the Low Density Lipoprotein Receptor (LDLR), and this intact complex is required for efficient uptake of lipoproteins such as LDL and apolipoprotein E (apoE). These receptors are expressed in the nervous system where they have implications in neurodegenerative diseases such as Alzheimer's disease (AD), where apoE is involved in neuronal uptake and accumulation of Aβ42, eventually cascading into neurodegeneration, synaptic dysfunction, and ultimately, dementia. We hypothesize that the intact Sigma-2 receptor complex-TMEM97, PGRMC1, and LDLR-is necessary for internalization of apoE and Aβ42 monomers (mAβ42) and oligomers (oAβ42), and the disruption of the receptor complex inhibits uptake. The results of this study suggest that the intact Sigma-2 receptor complex is a binding site for mAβ42 and oAβ42, in the presence or absence of apoE2, apoE3, and apoE4. The loss or pharmacological inhibition of one or both of these proteins results in the disruption of the complex leading to decreased uptake of mAβ42 and oAβ42 and apoE in primary neurons. The TMEM97, PGRMC1, and LDLR complex is a pathway for the cellular uptake of Aβ42 via apoE dependent and independent mechanisms. This study suggests that the complex may potentially be a novel pharmacological target to decrease neuronal Aβ42 internalization and accumulation, which may represent a new strategy for inhibiting the rate of neurotoxicity, neurodegeneration, and progression of AD.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.