Cysteine String Protein Controls Two Routes of Export for Misfolded Huntingtin
Extracellular vesicles (EVs) are secreted vesicles of diverse size and cargo that are implicated in the cell-to-cell transmission of disease-causing-proteins in several neurodegenerative diseases. Mutant huntingtin, the disease-causing entity in Huntington's disease, has an expanded polyglutamine track at the N terminus that causes the protein to misfold and form toxic intracellular aggregates. In Huntington's disease, mutant huntingtin aggregates are transferred between cells by several routes. We have previously identified a cellular pathway that is responsible for the export of mutant huntingtin via extracellular vesicles. Identifying the EV sub-populations that carry misfolded huntingtin cargo is critical to understanding disease progression. In this work we expressed a form of polyglutamine expanded huntingtin (GFP-tagged 72Qhuntingtinexon1) in cells to assess the EVs involved in cellular export. We demonstrate that the molecular chaperone, cysteine string protein (CSPα; DnaJC5), facilitates export of disease-causing-polyglutamine-expanded huntingtin cargo in 180–240 nm vesicles as well as larger 10–30 μm vesicles.
Reference
Pink, D., Donnelier, J., Lewis, J. D., & Braun, J. E. (2021). Cysteine String Protein Controls Two Routes of Export for Misfolded Huntingtin. Frontiers in Neuroscience, 15.
- NeuroMab™ Anti-Tau Antibody(NRP-0422-P2293) (Cat#: NRP-0422-P2293)
- NeuroMab™ Anti-pTau Antibody(NRP-0422-P1719) (Cat#: NRP-0422-P1719)
- NeuroMab™ Anti-EPHB2 Antibody(NRP-0422-P1220) (Cat#: NRP-0422-P1220)
- Mouse Anti-Human α-Synuclein Phospho (Tyr39) (CBP3706) (Cat#: NAB201250LS)
- NeuroMab™ Anti-TNFα BBB Shuttle Antibody(NRZP-1022-ZP4105) (Cat#: NRZP-1022-ZP4105)
- NeuroMab™ Anti-SEZ6 Antibody(NRP-0422-P517) (Cat#: NRP-0422-P517)
- iNeuMab™ Mouse Anti-SHANK3 Monoclonal Antibody (CBP929) (Cat#: NAB-0720-Z3477)
- NeuroMab™ Anti-TREM2 Antibody(NRP-0422-P792) (Cat#: NRP-0422-P792)
- NeuroMab™ Anti-CD20 Antibody(NRP-0422-P1230) (Cat#: NRP-0422-P1230)
- NeuroMab™ Anti-GD2 Antibody(NRZP-1222-ZP767) (Cat#: NRZP-1222-ZP767)
- Mouse Glioma Cell Line GL261-GFP (Cat#: NCL-2108P04)
- Mouse Microglia Cell Line BV-2, Immortalized (Cat#: NCL2110P153)
- Rat Immortalized Retinal Muller Cell Line rMC-1 (Cat#: NCL-2106-S93)
- Human Blood Brain Barrier Model (Cat#: NCL-2103-P187)
- Mouse Midbrain Dopaminergic Neuron Cell MN9D (Cat#: NCL2110P059)
- Mouse Microglia from C57BL/6 (Cat#: NCL-21P6-082)
- Rat Schwann Cells RSC96, Immortalized (Cat#: NCL-2108P21)
- Human Astrocytes (Cat#: NCC20-9PZ01)
- Green Fluorescent Alpha-synuclein SH-SY5Y Cell Line (Cat#: NCL2110P209)
- Rat Muller Cell (Cat#: NCL2110P040)
- Human Poly ADP ribose polymerase,PARP Assay Kit (Cat#: NRZP-1122-ZP62)
- Alpha-Synuclein Aggregation Assay Kit (Cat#: NRZP-1122-ZP37)
- Beta Amyloid (1-40), Aggregation Kit (Cat#: NRZP-0323-ZP199)
- Beta Amyloid (1-42), Aggregation Kit (Cat#: NRZP-0323-ZP200)
- Amyloid beta 1-42 Kit (Cat#: NRP-0322-P2170)
- Human Tau Aggregation Kit (Cat#: NRP-0322-P2173)
- Human GFAP ELISA Kit [Colorimetric] (Cat#: NPP2011ZP383)
- Alpha Synuclein Aggregation Kit (Cat#: NRZP-1122-ZP15)
- VSV-eGFP (Cat#: NTA-2011-ZP20)
- pAAV-syn-jGCaMP8f-WPRE (Cat#: NTA-2106-P061)
- Dextran, NHS Activated, 40 kDa (Cat#: NRZP-0722-ZP124)
- pAAV-hSyn-DIO-XCaMP-R-WPRE (Cat#: NTA-2012AD-P508)
- pAAV-syn-FLEX-jGCaMP8f-WPRE (Cat#: NTA-2106-P064)
- pAAV-syn-FLEX-jGCaMP8s-WPRE (Cat#: NTA-2106-P066)
- pAAV-syn-FLEX-jGCaMP8m-WPRE (Cat#: NTA-2106-P065)
- AAV2 Full Capsids, Reference Standards (Cat#: NTC2101070CR)
- pAAV-syn-jGCaMP8m-WPRE (Cat#: NTA-2106-P062)
- rAAV-E-SARE-Cre-ERT2-PEST-WPRE-hGH polyA (Cat#: NTA-2010-TT342)
- Human huntingtin (HTT) (NM_002111) ORF clone, Myc-DDK Tagged (Cat#: NEP-0521-R0497)
- Human huntingtin-associated protein 1 (HAP1) transcript variant 2 (NM_177977) ORF clone, Myc-DDK Tagged (Cat#: NEP-0521-R0676)
- Lenti of Human TAR DNA binding protein (TARDBP) (NM_007375) ORF clone, mGFP Tagged (Cat#: NEP-0521-R0832)
- Tau Antisense Oligonucleotide (IONIS-MAPTRx) (Cat#: NV-2106-P29)
- Mouse SOD1 shRNA Silencing Adenovirus (Cat#: NV-2106-P14)
- ABCA1 Antisense Oligonucleotide (NV-2106-P27) (Cat#: NV-2106-P27)
- Mouse Parkinson disease (autosomal recessive, early onset) 7 (Park7) (NM_020569) clone, Untagged (Cat#: NEP-0621-R0133)
- Human apolipoprotein E (APOE) (NM_000041) ORF clone, Untagged (Cat#: NEP-0421-R0232)
- Human superoxide dismutase 3, extracellular (SOD3) (NM_003102) ORF clone, Untagged (Cat#: NEP-0521-R0808)
- Human superoxide dismutase 1, soluble (SOD1) (NM_000454) ORF clone, TurboGFP Tagged (Cat#: NEP-0521-R0748)
- NeuroBiologics™ Pig Cerebrospinal Fluid (Cat#: NRZP-0822-ZP498)
- NeuroBiologics™ Rat Cerebrospinal Fluid (Cat#: NRZP-0822-ZP496)
- NeuroBiologics™ Mouse Cerebrospinal Fluid (Cat#: NRZP-0822-ZP497)
- NeuroBiologics™ Human Cerebrospinal Fluid (Cat#: NRZP-0822-ZP491)
- NeuroBiologics™ Monkey Cerebrospinal Fluid (Cat#: NRZP-0822-ZP495)
- NeuroPro™ Anti-GDNF BBB Shuttle Protein (Cat#: NRZP-0423-ZP500)
- NeuroPro™ Anti-Erythropoietin BBB Shuttle Protein (Cat#: NRZP-0423-ZP499)
- NeuroPro™ Anti-TNFR BBB Shuttle Protein (Cat#: NRZP-0423-ZP501)
- NeuroPro™ Anti-PON1 BBB Shuttle Protein (Cat#: NRZP-0423-ZP507)
- NeuroPro™ Anti-EPO BBB Shuttle Protein (Cat#: NRZP-0423-ZP508)
- NeuroPro™ Anti-IDUA BBB Shuttle Protein (Cat#: NRZP-0423-ZP498)
- NeuroPro™ Anti-IDUA BBB Shuttle Protein (Cat#: NRZP-0423-ZP502)
- NeuroPro™ Anti-IDS BBB Shuttle Protein (Cat#: NRZP-0423-ZP503)
- NeuroPro™ Anti-SGSH BBB Shuttle Protein (Cat#: NRZP-0423-ZP505)
- NeuroPro™ Anti-ASA BBB Shuttle Protein (Cat#: NRZP-0423-ZP504)