HSP
Heat shock proteins (HSPs) are molecular chaperones that support proteostasis by preventing protein misfolding and aggregation during nascent-chain folding and cellular stress[1]. Mechanistically, HSP70 acts upstream on nascent and newly synthesized polypeptides, while HSP90 supports folding and maturation of selected client proteins through coordinated chaperone cycles[1][2]. In cancer models, HSP90 buffers oncogenic signaling proteins and enables malignant cells to tolerate imbalanced signaling, making HSP90 inhibition a practical strategy for disrupting multiple client pathways[3][4]. Compared with ATP-dependent HSP70/HSP90 systems, HSP27/HSPB1 is a small heat shock protein whose oligomer-monomer dynamics regulate chaperone activity and whose redox-sensitive monomers suppress aggregation in vitro[5]. HSP27 also regulates apoptosis by interacting with cytochrome c and blocking downstream apoptotic complex formation, supporting its use in cell-death and stress-response experiments[6]. For experimental applications, HSP90 inhibitors provide tools to test client-protein dependence, while HSP27-focused assays can examine aggregation control, redox stress, and apoptosis regulation[4][5][6].
References:
- [1]. Hartl FU, et al. Molecular chaperones in the cytosol: from nascent chain to folded protein. Science. 2002 Mar 8;295(5561):1852-8. [Content Brief]
- [2]. Dahiya V, et al. The switch from client holding to folding in the Hsp70/Hsp90 chaperone machineries is regulated by a direct interplay between co-chaperones. Mol Cell. 2022 Apr 21;82(8):1543-1556.e6. [Content Brief]
- [3]. Whitesell L, et al. HSP90 and the chaperoning of cancer. Nat Rev Cancer. 2005 Oct;5(10):761-72. [Content Brief]
- [4]. Neckers L, et al. Hsp90 molecular chaperone inhibitors: are we there yet? Clin Cancer Res. 2012;18(1):64-76.
- [5]. Alderson TR, et al. Local unfolding of the HSP27 monomer regulates chaperone activity. Nat Commun. 2019 Mar 6;10(1):1068. [Content Brief]
- [6]. Bruey JM, et al. Hsp27 negatively regulates cell death by interacting with cytochrome c. Nat Cell Biol. 2000 Sep;2(9):645-52. [Content Brief]
All Product Categories
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HSP Related Products (236)
Related Products (236)
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Antibodies (7)
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KNK437 (Standard)
0 ImagesSynonyms: Heat Shock Protein Inhibitor I (Standard)
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Hsp90-Cdc37-IN-1 (Standard)
0 ImagesCat. No.: HY-111414RCAS No.: 2227303-22-0Hsp90-Cdc37-IN-1 (Standard) is the analytical standard of Hsp90-Cdc37-IN-1 (HY-111414). This product is intended for research and analytical applications. Hsp90-Cdc37-IN-1 is an Hsp90-Cdc37 interaction disruptor that inhibit cell migration and reverse agent resistance, with an IC50 of 140 nM.
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Gamitrinib TPP hexafluorophosphate (Standard)
0 ImagesCat. No.: HY-102007ARCAS No.: 1131626-47-5Gamitrinib TPP hexafluorophosphate (Standard) is the analytical standard of Gamitrinib TPP hexafluorophosphate (HY-102007A). This product is intended for research and analytical applications. Gamitrinib TPP hexafluorophosphate is a Gamitrinib (GA) mitochondrial matrix inhibitor. Gamitrinib TPP hexafluorophosphate is a mitochondrial targeted HSP90 inhibitor with anti-cancer activity.
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Iroxanadine hydrobromide
0 ImagesCat. No.: HY-19399CCAS No.: 276690-62-1Synonyms: (-)-BRX 005 hydrobromide; (-)-BRX 235 hydrobromideIroxanadine hydrobromide (BRX 005) is a vasculoprotector. Iroxanadine is a p38 kinase and HSP protein dual activator. Iroxanadine hydrobromide has the potential for atherosclerosis and vascular diseases research.
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PSEC13
0 ImagesCat. No.: HY-174438PSEC13 is an activator of HSF-1/DAF-16 axis. PSEC13 can upregulate heat shock proteins. PSEC13 can form hydrogen bonds with key residues in the HSP-16.2 active site. PSEC13 can be used to enhance proteostasis and extend lifespan through the modulation of HSP-16.2. PSEC13 could promote the nuclear translocation of daf-16, upgrading the proportion of intermediate. PSEC13 can be studied in research for aging and age-related diseases.
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Xylobiose (Standard)
0 ImagesSynonyms: 1,4-β-D-Xylobiose (Standard); 1,4-D-Xylobiose (Standard)Xylobiose (1,4-β-D-Xylobiose; 1,4-D-Xylobiose) is an orally active Claudin 2/CLDN2 inhibitor and HSP27 inducer. Xylobiose works by regulating intestinal barrier function and glucose and lipid metabolism-related signaling pathways. Xylobiose inhibits CLDN2 expression to reduce intestinal permeability, induces HSP27 to enhance cell protection, and regulates the miR-122a/miR-33a axis to inhibit liver lipid synthesis and improve insulin resistance. Xylobiose can strengthen intestinal barrier integrity, reduce blood sugar and blood lipid levels, and reduce oxidative stress and inflammatory response. Xylobiose can be used in the study of type 2 diabetes and metabolic syndrome.
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Iroxanadine
0 ImagesCat. No.: HY-19399CAS No.: 276690-58-5Synonyms: (-)-BRX 005; (-)-BRX 235Iroxanadine (BRX 005) is a vasculoprotector. Iroxanadine is a p38 kinase and HSP protein dual activator. Iroxanadine has the potential for atherosclerosis and vascular diseases research.
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Displurigen (Standard)
0 ImagesCat. No.: HY-111002RCAS No.: 96156-26-2Synonyms: NSC375009 (Standard)Displurigen (Standard) is the analytical standard of Displurigen (HY-111002). This product is intended for research and analytical applications. Displurigen (NSC375009) disrupts human embryonic stem cell pluripotency by targeting HSPA8. Displurigen inhibits ATPase activity of HSP70 (IC50 = 225 μM).
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PF-4942847
0 ImagesCat. No.: HY-108336CAS No.: 1046859-34-0PF-4942847 is an orally active HSP90 inhibitor with an IC50 of approximately 50 nM. PF-4942847 induces apoptosis in osteosarcoma cells, increases the proportion of cells in the sub-G1 phase and PARP cleavage, reduces the expression of Akt, Erk, MYC, c-MET and STAT-3, and regulates HSP expression. PF-4942847 can be used in studies related to osteosarcoma and HSP90.
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BIIB-028
0 ImagesCat. No.: HY-12933CAS No.: 911398-13-5BIIB-028 is an orally active inhibitor for heat shock protein 90 (Hsp90). BIIB-028 targets the ATP-binding site of Hsp90, disrupts the function of Hsp90, leads to the degradation of client proteins, that are crucial for cancer cell survival and proliferation.
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Mequinol (Standard)
0 ImagesMequinol (Standard) is the analytical standard of Mequinol. This product is intended for research and analytical applications. Mequinol (4-Methoxyphenol)yes MercurialisOne of the bioactive ingredients, mainly used for skin discoloration. MequinolIs an antioxidant that has additive/synergistic effects on carcinogenesis when combined with other phenolic antioxidants. Mequinolalso promote hERαDependent chaperone production with potential estrogenic activity.
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JG-48
0 ImagesCat. No.: HY-116279CAS No.: 1627122-26-2JG-48 is a Hsp70 inhibitor that can reduce tau levels in models of tauopathy.
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HSF1A (Standard)
0 ImagesCat. No.: HY-103000RCAS No.: 1196723-93-9HSF1A (Standard) is the analytical standard of HSF1A (HY-103000). This product is intended for research and analytical applications. HSF1A is a cell-permeable activator of heat shock transcription factor 1 (HSF1). HSF1A also acts as a specific inhibitor of TRiC/CCT. Chaperonin TCP-1 ring complex (TRiC)/chaperonin containing TCP-1 (CCT) plays a pivotal role in toxin translocation and/or refolding.
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VER-155008 (Standard)
0 ImagesCat. No.: HY-10941RCAS No.: 1134156-31-2VER-155008 (Standard) is the analytical standard of VER-155008 (HY-10941). This product is intended for research and analytical applications. VER-155008 is an inhibitor of Hsp70, with IC50s of 0.5 μM, 2.6 μM, and 2.6 μM for Hsp70, Hsc70 and Grp7, respectively, and with a Kd of 0.3 μM for Hsp70.
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Zelavespib (Standard)
0 ImagesCat. No.: HY-11038RCAS No.: 873436-91-0Synonyms: PU-H71 (Standard)Zelavespib (Standard) is the analytical standard of Zelavespib (HY-11038). This product is intended for research and analytical applications. Zelavespib (PU-H71) is a potent Hsp90 inhibitor, with an IC50 of 51 nM in MDA-MB-468 cells.
