HSP (e.g. HSP90)

(A) Cell lines were seeded in 96-well plates and treated with 10 nM of 17-AAG for 72 h. Cell survival was analyzed using CellTiter-Glo. Both parental H3122 cells (red bar) and H3122 CR cells (blue bar) show sensitivity to 17-AAG. (B) Suppression of ALK signaling by 17-AAG in resistant H3122 CR cells. H3122 parental and resistant cells were exposed to increasing concentrations of 17-AAG for 6 h.

U2OS_exo cells were incubated with AUY922 for 20 h at the indicated concentrations before stimulation with TNFα (30 ng/mL) for 30 min and immunostaining to detect NF-κB (p65). DMSO 1%, cells stimulated by TNFα in the absence of AUY922. Representative pictures used to quantify nuclear and cytoplasmic localization of NF-κB.

H2228/Vec or H2228/HGF cells were treated with or without alectinib (0.3 μmol/L) for 2 h or 17-DMAG (0.3 μmol/L) for 24 h and then stimulated with or without HGF (50 ng/mL) for 10 minutes. The resultant cells were lysed, and the indicated proteins were detected by immunoblotting.

Loss of viability (Z score) resulting from HSP90 inhibition (HSP90i; ganetespib, 5 nM) in FANCA null GM6914 cells transduced with retroviruses encoding FANCA wild-type (squares; WT) or empty vector control (circles; null) in the presence (black symbols) of MMC (31.6 nM) or DMSO control (gray symbols). Data from three independent experiments are presented as mean ± SEM.

Relative effect of pharmacological HSP90 inhibition by (B) onalespib (AT13387, 10-40 nM) on the viability of FANCA wild-type and FANCA null cells under normal conditions or with increasing concentrations of MMC. Left panels indicate the effects of the indicated inhibitor on cell growth; middle panels the effects onMMCtolerance in FANCA-wild-type cells; right panels the effects onMMCtolerance in FANCA null cells Data presented as the mean ± SEM from 2 independent experiments.

Growth curves of the MPNST cell line S462 treated with two different HSP90 inhibitors (500nM IPI-504 and 500nM BEP800).

Phenotypic effect of Genetic or Pharmacologic Compromise of the 477 Hsp70-StiA-Hsp90 Complex. The impact of each genetic modification on radial growth, conidiation, and response to various stress conditions was assessed after inoculation of a suspension of 104 conidia on glucose minimal medium (GMM) agar plates and incubation at 37ºC for 5 days.

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.

B, XL888 (1 mmol/L, 144 hours) is effective at blocking the growth and survival of vemurafenib-resistant melanoma cell lines grown as 3D collagen-implanted spheroids. Staining shows cell viability, in which green corresponds to live cells and red: dead cells. Magnification×4.

(D) Representative images of paraffin-embedded tumor sections were analyzed by active caspase-3 staining. (E) Representative images of paraffin-embedded tumor sections analyzed by TUNEL staining.

Effects of low-level HSP90 inhibition (by ganetespib, 2-5 nM; PU-H71, 40-70 nM) or febrile-range temperature (39 ℃) on HSP70 and HSP90 protein levels in FANCA wild-type cells. High-level HSP90 inhibition (ganetespib, 25 nM; PU-H71, 300 nM) as well as proteotoxic proteasomal inhibition (MG132, 2.5 mM) induced the expression of HSP70. Constitutive (upper band: C) and inducible forms (lower band: I) of HSP70 are indicated. HSP90 levels are shown for comparison.

Representative images of platelets preincubated with FITC-conjugated CD41 before treated with negative control, pitstop 2, dynasore, A23, or apoptozole spreading on immobilized Fg for 10, 30, and 60 minutes, respectively. Images were taken under oil immersion with magnification × 100. Scale bar, 5 μm.

Western blots of lysates from BaF3 JAK2 V617F cells.

C, HSP70 protein levels after 1000 ng/mL LPS treatment combined with or without HSP70 inhibitor VER155008 for 48 h using western blot analysis, respectively. D, HSP70 protein levels after heat stress treatment combined with or without HSP70 inhibitor VER155008 for 3 h using western blot analysis.

Treatment with elesclomol inhibits cancer cell growth and induces apoptosis by increasing ROS levels. a. Cell growth of SMOV2, IGROV1, and OVCA432 ovarian cancer cells treated with elesclomol in the presence or absence of the antioxidant NAC for 72 h. Cell growth was measured using the WST-1 assay and quantified relative to DMSO treated controls.

SP cells in inhibitor-treated, shRNA-transduced HCC1937 cells analyzed by flow cytometry using Hoechst 33342 dye. Data are shown as mean±SD. ****P<.0001, ***P<.001, **P<.01, *P<.05.