PF-04929113 (SNX-5422)


PF-04929113 (SNX-5422)化学構造


PF-04929113 (SNX-5422) is a potent and selective HSP90 inhibitor with Kd of 41 nM and induces Her-2 degradation with IC50 of 37 nM. Phase 1/2.

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JPY 92960.00
JPY 44820.00
JPY 78020.00


  • Effect of SNX-2112 on E. histolytica morphology. Trophozoites were treated with 3 uM SNX-2112 for 48 h. (A) E. histolytica trophozoites treated with 0.5% DMSO. Arrow indicates live trophozoite. Magnification, x 10. (B) E. histolytica trophozoites treated with 3 uM SNX-2112. Treatment caused complete lysis of trophozoites (arrow). Magnification, x 10. Trophozoites were imaged under phase-contrast microscope.

    Antimicrob Agents Chemother 2014 58(7), 4138-44. PF-04929113 (SNX-5422) purchased from Selleck.

    J Biol Chem 2013 288(23), 16308-20. PF-04929113 (SNX-5422) purchased from Selleck.

  • 8505C and CAL62 cells were treated with SNX5422 at 5 μM for 72 h, and the protein levels of hsp90, hsp70, Raf-1, GSK3b, and total and phospho-Akt were measured. All experiments were performed in triplicate. The blots are representative of independent experiments.

    Endocrine, 2016, 51(2):274-82.. PF-04929113 (SNX-5422) purchased from Selleck.


HSP (e.g. HSP90)阻害剤の選択性比較


製品説明 PF-04929113 (SNX-5422) is a potent and selective HSP90 inhibitor with Kd of 41 nM and induces Her-2 degradation with IC50 of 37 nM. Phase 1/2.
HER2 [1] HSP90 [1]
37 nM 41 nM(Kd)

PF-04929113 is a small-molecule Hsp90 inhibitor based on the 6,7-dihydro-indazol-4-one scaffold. PF-04929113 developed by Serenex, converts to SNX-2122, which is the active Hsp90 inhibitor form. PF-04929113 exhibits potent effects on Her-2 stability and causes expected up-regulation of Hsp70. PF-04929113 shows potent antiproliferative activity against a broad range of cancer cell types, e.g. MCF-7 (IC50=16 nM), SW620 (IC50=19 nM), K562 (IC50=23 nM), SK-MEL-5 (IC50=25 nM), and A375 (IC50=51 nM). [1]

体内試験 PF-04929113 inhibits human MM cell growth in vivo, and immuno-histochemical analysis shows PF-04929113 significantly inhibits p-ERK and p-Akt in treated mice. Meanwhile, PF-04929113 treatment significantly decreases the percentage of CD31+ cells and MVD, consistent with an inhibitory effect on angiogenesis in vivo. A 50 mg/kg administration of PF-04929113 delivered 3 times per week significantly delays castrate-resistant LNCaP tumor growth and prolongs cancer specific survival. [2] Immuno-histochemical analysis indicates increased SP70 expression, and decreases Ki67, Akt, and AR expression, after treatment with PF-04929113. Inhibition of tumor progression by PF-04929113 may result from a combination of decreased proliferative (reduced Ki67 and Akt expression) or increased apoptosis (increased ApopTag staining) rates. [3]


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Affinity for Hsp90:

Hsp90 from porcine spleen extract is isolated by affinity capture on a purine-affinity media. The Hsp90 loaded media is then challenged with PF-04929113 at a given concentration, ranging from 0.8 to 500 μM, and the amount of Hsp90 liberated at each concentration is determined by Bradford protein assay. The resulting IC50 values are corrected for the ATP ligand concentration and presented as apparent Kd values.
細胞試験: [1]
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  • 細胞株: MCF-7, SW620, K562, SK-MEL-5 and A375 cancer cell lines
  • 濃度: 0-300 nM
  • 反応時間: 72 or 144 hours
  • 実験の流れ: All assays are done in 96-well plates. All cell lines are purchased from ATCC. Proliferation rates are measured by seeding cells into 96-well plates, followed by compound addition 24 h later. After addition of PF-04929113, cells are allowed to grow for either an additional 72 or 144 h depending on rate of growth. At harvest, media is removed and DNA content for individual wells is determined using CyQuant DNA dye. Levels of Hsp90 client proteins and phosphor-regulated proteins in A375 are measured by high content analysis (HCA) using an ArrayScan 4.5 instrument after 24 hours of treatment with PF-04929113, followed by methanol fixation. After fixation in 4% PBS-buffered formalin and permeablization with 0.1% TX-100, cells are probed with anti-Her2, antiphospho-S6 (pS6), antipERK, and anti-Hsp70 primary antibodies, followed by TRITC or FITC conjugated secondary antibodies. Nuclei are also stained with Hoechst DNA binding dye. For each well, 250-500 individual nuclei are identified along with the average staining intensity for the client and phospho-proteins for each cell. Average client staining intensities are then calculated for each well.
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  • 動物モデル: 5 × 106 MM.1S cells are inoculated subcutaneously in the Fox Chase SCID mice (6-7 weeks old).
  • 製剤: PF-04929113 is dissolved in 1% carboxy methylcellulose/0.5% Tween 80 at 10 mg/mL and stored at 4 °C for in vivo stud
  • 投薬量: 20 or 40 mg/kg
  • 投与方法: PF-04929113 is administered orally 3 times per week, total 3 weeks.

溶解度 (25°C)

体外 DMSO 104 mg/mL (199.41 mM)
Ethanol 5 mg/mL (9.58 mM)
Water Insoluble
体内 左から(NMPから)右の順に溶剤を製品に加えます(文献ではなく、Selleckの実験によるデータ):
0.5% CMC+0.25% Tween 80
25 mg/mL

* 溶解度測定はSelleck技術部門によって行われており、その他文献に示されている溶解度と差異がある可能性がありますが、同一ロットの生産工程で起きる正常な現象ですからご安心ください。


分子量 521.53


CAS No. 908115-27-5
in solvent
別名 N/A





質量 (g) = 濃度 (mol/L) x 体積 (L) x 分子量 (g/mol)


  • 質量





開始濃度 x 開始体積 = 最終濃度 x 最終体積


この方程式は、一般に略語を使われます:C1V1 = C2V2 ( 入力 出力 )

  • C1



  • 連続希釈剤

  • 計算結果

  • C1=C0/X C1: LOG(C1):
    C2=C1/X C2: LOG(C2):
    C3=C2/X C3: LOG(C3):
    C4=C3/X C4: LOG(C4):
    C5=C4/X C5: LOG(C5):
    C6=C5/X C6: LOG(C6):
    C7=C6/X C7: LOG(C7):
    C8=C7/X C8: LOG(C8):




チップス: 化学式は大文字と小文字の区別ができます。C10H16N2O2 c10h16n2o2


質量 濃度 体積 分子量


NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT02973399 Active not recruiting Cancer Esanex Inc. February 7 2017 Phase 1
NCT02914327 Withdrawn Cancer Esanex Inc. February 2 2017 Phase 1
NCT02612285 Terminated Cancer Esanex Inc. March 2016 Phase 2
NCT02063958 Completed Cancer Esanex Inc. February 2014 Phase 1
NCT01635712 Completed Cancer Esanex Inc. February 2014 Phase 1
NCT01892046 Completed Cancer Esanex Inc. November 2013 Phase 1



Handling Instructions


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細胞株 試験類型 濃度 培養時間 溶剤類型 活性叙述 PMID