Tubastatin A TFA
Based on 42 publication(s) in Google Scholar
Tubastatin A (TSA) TFA is a potent and selective?HDAC6?inhibitor with?IC50?of 15 nM in a cell-free assay, and is selective (1000-fold more) against all other isozymes except HDAC8 (57-fold more). Tubastatin A TFA also inhibits HDAC10 and metallo-β-lactamase domain-containing protein?2 (MBLAC2).
For research use only. We do not sell to patients.
- CAS No.: 1239262-52-2
- Formula: C22H22F3N3O4
- Molecular Weight:449.42
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Publications Citing Use of MedChemExpress (MCE) Tubastatin A TFA
More- Cell Host Microbe. 2026 Feb 11;34(2):245-262.e8. [Abstract]
- Nat Commun. 2026 Feb 5;17(1):1212. [Abstract]
- Acta Pharm Sin B. 2022 Oct;12(10):3891-3904. [Abstract]
- J Biomed Sci. 2025 Jan 20;32(1):9. [Abstract]
- Adv Sci (Weinh). 2025 Aug 7:e02624. [Abstract]
- Cell Death Differ. 2025 Jul 30. [Abstract]
- Cell Death Dis. 2022 Oct 21;13(10):888. [Abstract]
- NPJ Precis Oncol. 2024 Mar 7;8(1):66. [Abstract]
- Antioxidants (Basel). 2022 Apr 7;11(4):732. [Abstract]
- Antioxidants (Basel). 2020 Jul 9;9(7):599. [Abstract]
- Free Radic Biol Med. 2025 Aug 13:240:59-70. [Abstract]
- Clin Transl Med. 2025 Jan;15(1):e70193. [Abstract]
- Neurotherapeutics. 2023 Jul;20(4):1215-1228. [Abstract]
- J Med Chem. 2024 Sep 12;67(17):15098-15117. [Abstract]
- J Med Chem. 2023 Dec 14;66(23):16075-16090. [Abstract]
- Atherosclerosis. 2021 Jan:317:1-9. [Abstract]
- Virulence. 2025 Dec;16(1):2495838. [Abstract]
- Mol Cancer Res. 2022 Jun 3;20(6):949-959. [Abstract]
- Mol Cancer Res. 2014 May;12(5):681-93. [Abstract]
- J Pathol. 2025 Apr 11. [Abstract]
- BMC Biol. 2018 Oct 18;16(1):116. [Abstract]
- Front Pharmacol. 2018 Feb 1:9:34. [Abstract]
- PLoS Pathog. 2021 Sep 20;17(9):e1009940. [Abstract]
- Am J Pathol. 2020 Dec;190(12):2376-2386. [Abstract]
- J Neurochem. 2026 Jun;170(6):e70493. [Abstract]
- J Dermatol Sci. 2022 Jun;106(3):181-188. [Abstract]
- Biochim Biophys Acta Mol Cell Res. 2020 May;1867(5):118676. [Abstract]
- J Nutr. 2020 Jul 1;150(7):1790-1798. [Abstract]
- Naunyn Schmiedebergs Arch Pharmacol. 2026 Apr 18. [Abstract]
- Viruses. 2025 Jan 13;17(1):90. [Abstract]
- Int J Parasitol Drugs Drug Resist. 2026 May 17;31:100649.
- Hum Mol Genet. 2022 Jun 22;31(12):2035-2048. [Abstract]
- J Mol Neurosci. 2024 Mar 13;74(1):30. [Abstract]
- J Muscle Res Cell Motil. 2025 Nov 13. [Abstract]
- SSRN. 2026 May 21.
- bioRxiv. 2025 Nov 12.
- bioRxiv. 2025 Jul 12:2025.07.08.663754. [Abstract]
- bioRxiv. 2025 January 31.
- Aging (Albany NY). 2021 Mar 19;13(7):9820-9837. [Abstract]
- bioRxiv. 2021 Feb 25.
- Patent. US20180263995A1.
- University of Toronto. 2017 Nov.
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IF
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Cell Imaging/Staining
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WB
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IF
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In Vivo Efficacy Study
Biological Activity
IC50: 15 nM (HDAC6)[1]
Tubastatin A is substantially selective for all 11 HDAC isoforms and maintains over 1000-fold selectivity against all isoforms excluding HDAC8, where it has approximately 57-fold selectivity. In homocysteic acid (HCA) induced neurodegeneration assays, Tubastatin A displays dose-dependent protection against HCA-induced neuronal cell death starting at 5 μM with near complete protection at 10 μM[1].?At 100 ng/mL Tubastatin A increases Foxp3+ T-regulatory cells (Tregs) suppression of T cell proliferation in vitro[2].?Tubastatin A treatment in CC12 cells would lead to myotube formation impairment when alpha-tubulin is hyperacetylated early in the myogenic process; however, myotube elongation occurs when alpha-tubulin is hyeperacetylated in myotubes[3].?A recent study indicates that Tubastatin A treatment increases cell elasticity as revealed by atomic force microscopy (AFM) tests without exerting drastic changes to the actin microfilament or microtubule networks in mouse ovarian cancer cell lines, MOSE-E and MOSE-L[4].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 1239262-52-2
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Molecular Weight 449.42
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Formula C22H22F3N3O4
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SMILES
O=C(NO)C1=CC=C(CN2C3=C(CN(C)CC3)C4=C2C=CC=C4)C=C1.O=C(O)C(F)(F)F
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Synonyms
TSA TFA
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Publications (42)
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Journal Impact Factor
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Most Recent
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Cell Host Microbe
Enterococcus faecalis-derived lactic acid suppresses macrophage activation to facilitate persistent and polymicrobial wound infections. [Abstract]2026 Feb 11;34(2):245-262.e8. PMID: 41605216 -
Nat Commun
The focal adhesion kinases regulate leptin action and the weight reducing effect of HDAC6 inhibition. [Abstract]2026 Feb 5;17(1):1212. PMID: 41644943 -
Acta Pharm Sin B
2022 Oct;12(10):3891-3904. PMID: 36213537
Tubastatin A TFA purchased from MedChemExpress. Usage Cited in: Acta Pharm Sin B. 2022 Oct;12(10):3891-3904. [Abstract]
The baseline and blocking time-activity curves of PB118 in the mice whole brain. Compared with baseline mice, remarkably reduced radioactivity was observed in the brain of mice pretreated with Tubastatin A (3.0 mg/kg; 5 min before RI).
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J Biomed Sci
Targeting enolase 1 reverses bortezomib resistance in multiple myeloma through YWHAZ/Parkin axis. [Abstract]2025 Jan 20;32(1):9. PMID: 39828712 -
Adv Sci (Weinh)
The Probiotic Parabacteroides johnsonii Ameliorates Metabolic Disorders Through Promoting BCAAs to BSCFAs Conversion. [Abstract]2025 Aug 7:e02624. PMID: 40772426 -
Cell Death Differ
2025 Jul 30. PMID: 40739328 -
Cell Death Dis
HDAC6-dependent deacetylation of TAK1 enhances sIL-6R release to promote macrophage M2 polarization in colon cancer. [Abstract]2022 Oct 21;13(10):888. PMID: 36270986
Tubastatin A TFA purchased from MedChemExpress. Usage Cited in: Cell Death Dis. 2022 Oct 21;13(10):888. [Abstract]
Construction of HCT116 cell line with stable HDAC6 knockdown. Tubastatin A HCl is HDAC6 selective inhibitor.
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NPJ Precis Oncol
Connectivity mapping-based identification of pharmacological inhibitor targeting HDAC6 in aggressive pancreatic ductal adenocarcinoma. [Abstract]2024 Mar 7;8(1):66. PMID: 38454151 -
Antioxidants (Basel)
Sp1 S-Sulfhydration Induced by Hydrogen Sulfide Inhibits Inflammation via HDAC6/MyD88/NF-κB Signaling Pathway in Adjuvant-Induced Arthritis. [Abstract]2022 Apr 7;11(4):732. PMID: 35453416 -
Antioxidants (Basel)
Inhibition of HDAC6 Attenuates Diabetes-Induced Retinal Redox Imbalance and Microangiopathy. [Abstract]2020 Jul 9;9(7):599. PMID: 32660051 -
Free Radic Biol Med
HDAC inhibition protects RPE cells from oxidative stress via enhanced mitochondrial fusion, cytoskeletal repair, and Nrf-2 activation. [Abstract]2025 Aug 13:240:59-70. PMID: 40816649 -
Clin Transl Med
Pathogenic variants of TUBB8 cause oocyte spindle defects by disrupting with EB1/CAKP5 interactions and potential treatment targeting microtubule acetylation through HDAC6 inhibition. [Abstract]2025 Jan;15(1):e70193. PMID: 39834092
Tubastatin A TFA purchased from MedChemExpress. Usage Cited in: Clin Transl Med. 2025 Jan;15(1):e70193. [Abstract]
The inhibition of HDAC6 restored the spindle assembly caused by TUBB8 missense variants. Representative confocal images showed spindle morphology in groups of WT, D417N (DMSO), D417N + tubacin (2 μM), and D417N + Tubastatin A (10 μM; DMSO).
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Neurotherapeutics
2023 Jul;20(4):1215-1228. PMID: 37268847
Tubastatin A TFA purchased from MedChemExpress. Usage Cited in: Neurotherapeutics. 2023 Jul;20(4):1215-1228. [Abstract]
Tubastatin A (TubA) (1 μM; overnight) treatment restores mitochondrial transport in cultured Gan−/− DRG neurons. Graph represents the significant increase in the total movement of mitochondria in Tubastatin A (TubA)-treated Gan−/− DRG neurons.
Tubastatin A TFA purchased from MedChemExpress. Usage Cited in: Neurotherapeutics. 2023 Jul;20(4):1215-1228. [Abstract]
Tubastatin A (TubA) (1 μM; overnight) treatment increased levels of acetylated tubulin and Prph in the sciatic nerve of Gan−/−;TgPer mice. The figure represented the western blots for Nefl, Prph, acetyl tubulin, and α-tubulin, respectively, from the sciatic nerve of saline- and Tubastatin A (TubA)-treated mice.
Tubastatin A TFA purchased from MedChemExpress. Usage Cited in: Neurotherapeutics. 2023 Jul;20(4):1215-1228. [Abstract]
Immunostaining of Nefl and Prph was performed on the cell body area of spinal neurons (larger than 250 μm²) from saline- and Tubastatin A (TubA)-treated mice, followed by quantification of the signal intensity. There was a significant decrease in the signal intensity for Nefl and Prph proteins in the perikaryon of spinal neurons from Gan−/−;TgPer mice treated with Tubastatin A (TubA) when compared to saline-treated Gan−/−;TgPer mice.
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J Med Chem
Discovery of a Novel Benzimidazole Derivative Targeting Histone Deacetylase to Induce Ferroptosis and Trigger Immunogenic Cell Death. [Abstract]2024 Sep 12;67(17):15098-15117. PMID: 39145486 -
J Med Chem
Development and Pharmacochemical Characterization Discover a Novel Brain-Permeable HDAC11-Selective Inhibitor with Therapeutic Potential by Regulating Neuroinflammation in Mice. [Abstract]2023 Dec 14;66(23):16075-16090. PMID: 37972387 -
Atherosclerosis
Targeting HDAC6 attenuates nicotine-induced macrophage pyroptosis via NF-κB/NLRP3 pathway. [Abstract]2021 Jan:317:1-9. PMID: 33321327 -
Virulence
The inhibitory and anti-inflammatory effects of TMP269 on peste des petits ruminants virus replication. [Abstract]2025 Dec;16(1):2495838. PMID: 40275702 -
Mol Cancer Res
Constitutive β-Catenin Overexpression Represses Lncrna MIR100HG Transcription via HDAC6-Mediated Histone Modification in Colorectal Cancer. [Abstract]2022 Jun 3;20(6):949-959. PMID: 35247921 -
Mol Cancer Res
NEDD9 regulates actin dynamics through cortactin deacetylation in an AURKA/HDAC6-dependent manner. [Abstract]2014 May;12(5):681-93. PMID: 24574519 -
J Pathol
Histone deacetylase 6 inhibition attenuates pathological cardiac hypertrophy by promoting autophagy through MAP1LC3B ubiquitination. [Abstract]2025 Apr 11. PMID: 40212005 -
BMC Biol
Microtubule polyglutamylation and acetylation drive microtubule dynamics critical for platelet formation. [Abstract]2018 Oct 18;16(1):116. PMID: 30336771 -
Front Pharmacol
HDAC6 Inhibition Promotes Transcription Factor EB Activation and Is Protective in Experimental Kidney Disease. [Abstract]2018 Feb 1:9:34. PMID: 29449811
Tubastatin A TFA purchased from MedChemExpress. Usage Cited in: Front Pharmacol. 2018 Feb 1:9:34. [Abstract]
HDAC6 inhibition with Tubastatin A acetylates TFEB, facilitates TFEB nuclear translocation and attenuates programmed cell death in NRK-52E cells. Immunoblotting for acetylated α-tubulin in NRK-52E cells treated with Tubastatin A.
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PLoS Pathog
PCV2 targets cGAS to inhibit type I interferon induction to promote other DNA virus infection. [Abstract]2021 Sep 20;17(9):e1009940. PMID: 34543359 -
Am J Pathol
Inhibition of Histone Deacetylase 6 by Tubastatin A Attenuates the Progress of Osteoarthritis via Improving Mitochondrial Function. [Abstract]2020 Dec;190(12):2376-2386. PMID: 32926854 -
J Neurochem
Effects of Lysine Deacetylation Inhibition Alone or in Combination With Arimoclomol on TDP-43 Proteinopathy. [Abstract]2026 Jun;170(6):e70493. PMID: 42283221 -
J Dermatol Sci
2022 Jun;106(3):181-188. PMID: 35637111 -
Biochim Biophys Acta Mol Cell Res
Shear stress stimulates integrin β1 trafficking and increases directional migration of cancer cells via promoting deacetylation of microtubules. [Abstract]2020 May;1867(5):118676. PMID: 32044386 -
J Nutr
Dietary Glucose Increases Glucose Absorption and Lipid Deposition via SGLT1/2 Signaling and Acetylated ChREBP in the Intestine and Isolated Intestinal Epithelial Cells of Yellow Catfish. [Abstract]2020 Jul 1;150(7):1790-1798. PMID: 32470978
Tubastatin A TFA purchased from MedChemExpress. Usage Cited in: J Nutr. 2020 Jul 1;150(7):1790-1798. [Abstract]
Effects of TBSA (Tubastatin A) pretreatment on glucose-induced changes in mRNA amounts of genes in IECs of yellow catfish.
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Naunyn Schmiedebergs Arch Pharmacol
Aucubin inhibits epithelial-mesenchymal transition and angiogenesis in colorectal cancer via the HDAC6/PI3K/Akt signaling pathway. [Abstract]2026 Apr 18. PMID: 41999432 -
Viruses
2025 Jan 13;17(1):90. PMID: 39861880 -
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Hum Mol Genet
E3 ligase Smurf1 protects against misfolded SOD1 in neuronal cells by promoting its K63 ubiquitylation and aggresome formation. [Abstract]2022 Jun 22;31(12):2035-2048. PMID: 35022748 -
J Mol Neurosci
Effects of the Glucocorticoid-Mediated Mitochondrial Translocation of Glucocorticoid Receptors on Oxidative Stress and Pyroptosis in BV-2 Microglia. [Abstract]2024 Mar 13;74(1):30. PMID: 38478195 -
J Muscle Res Cell Motil
Tubastatin A attenuates impaired autophagic degradation and promotes myogenic program in skeletal muscle following downhill running. [Abstract]2025 Nov 13. PMID: 41233637 -
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bioRxiv
2025 Jul 12:2025.07.08.663754. PMID: 40672312 -
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Aging (Albany NY)
Inhibition of HDAC6 by Tubastatin A reduces chondrocyte oxidative stress in chondrocytes and ameliorates mouse osteoarthritis by activating autophagy. [Abstract]2021 Mar 19;13(7):9820-9837. PMID: 33744850 -
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Tubastatin A TFA purchased from MedChemExpress. Usage Cited in: University of Toronto. 2017 Nov.
Tubastatin A induces a dose-dependent increase in acetylated α-tubulin levels in NRK-52E cells.
Purity & Documentation
References
[1]. de Zoeten EF, et al. Histone deacetylase 6 and heat shock protein 90 control the functions of Foxp3(+) T-regulatory cells. Mol Cell Biol. 2011 May;31(10):2066-78. [Content Brief]
[2]. Kyle V. Butler et al. Rational Design and Simple Chemistry Yield a Superior, Neuroprotective HDAC6 Inhibitor, Tubastatin A J. Am. Chem. Soc., 2010, 132 (31), pp 10842-10846 [Content Brief]
[3]. Di Fulvio S, et al. Dysferlin interacts with histone deacetylase 6 and increases alpha-tubulin acetylation. PLoS One. 2011;6(12):e28563 [Content Brief]
[4]. Ketene AN, et al. Actin filaments play a primary role for structural integrity and viscoelastic response in cells. Integr Biol (Camb). 2012 May;4(5):540-9. [Content Brief]
[5]. Brijmohan AS, et al. HDAC6 Inhibition Promotes Transcription Factor EB Activation and Is Protective in Experimental Kidney Disease. Front Pharmacol. 2018 Feb 1;9:34. [Content Brief]
[6]. Severin Lechner, et al. Target deconvolution of HDAC pharmacopoeia reveals MBLAC2 as common off-target. Nat Chem Biol. 2022 Apr 28. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)