COVID-19

Dexamethasone and largazole cooperate to suppress invasion and to restore E-cadherin localization to the cell peripher y. ( a) Phase contrast micrographs showing morphological changes in MDA-MB-231 cells induced by E-cadherin expression combined with 100 nM dexamethasone and 10 nM largazole treatments. Insets show the cells at higher magnification. (b ) Fluorescence (E-Cad-GFP) or immunofluorescence microscopy (g -catenin (g-Cat.)) of 231/E-Cad-GFP cells treated for 72 h with vehicle (Control), 100 n M dexamethasone, 10 nM largazole or 100 nM dexamethasone + 10 nM largazole (Dex. + Larg.). (c ) Invasion assays were per formed with the indicated cell lines treated for 72 h with or without 100 nM dexamethasone + 10 nM largazole using modified Boyden chambers impregnated with matrigel. The results are presented as the average number of cells that invaded through the membrane per field s.d. of five randomly chosen fields, and are representative of three independently per formed experiments.

MDA-MB-231 cells were treated with simvastatin (SIM) or rosuvastatin (ROSU) in combination with ZOL for 48 h. Vitality and apoptosis were measured by using the cell titer blue and the caspase 3/7 Glo assay. Data are shown as mean ± SD of at least three individual experiments (*p ≤ 0.05; **p ≤ 0.01; ***p ≤ 0.001).

bDNA analysis showing that the JAK1/2 inhibitors CYT387, AZD1480 and Baricitinib positively regulate UCP1 expression in PSC-WA. Values are mean ± s.d. of n = three biological replicates and differences from DMSO are significant for * P < 0.005. P values were calculated using the two-tailed paired Student's t-test.

The Nucleotide analog reverse-transcriptase inhibitor Tenofovir disoproxil fumarate was added to TZM-bl cells. Cells were inoculated with 0.05 ng mock-exposed and semen-exposed HIV, and 0.5 ng HIV as infectivity-matched control. Infection rates were measured 3 days post infection by measuring β-galactosidase or or 4 days post infection by measuring luciferase activities. The left panels show the mean enzyme activities ± standard deviation derived from triplicate infections. RLU/s: relative light units per second. Middle panels show normalized infection rates in which reporter enzyme activities obtained from infected cells in the absence of inhibitor were set at 100%. The right panels depict the calculated IC50 values. The number above the bar represents the fold-change in the IC50 derived from 0.05 ng semen-exposed relative to 0.05 or 0.5 ng mock-exposed virus infection. Ns, no statistically significant difference; **** p<0.0001; *** p<0.001 (unpaired t-test).

(A) NPCs were treated with 3µM of the GSK3 inhibitor (tideglusib) for 24 hours. Representative images of untreated SPG11-NPCs (SPG11‐NT) and tideglusib-treated SPG11-NPCs (SPG11-Tide) on day 3. Cell proliferation was analyzed using colabeling of PCNA in Nestin/Sox2-positive NPCs. Nuclei were visualized with DAPI. Scale bar = 50µm. (B) Increased numbers of Nestin/Sox2‐positive cells colabeled with PCNA in CHIR99021-treated SPG11-NPCs. (C) Tideglusib-treated SPG11-NPCs, compared to untreated NPCs, revealed restoration of cell proliferation similar to the CTRL‐NPCs.

A) MV411 or B) Kasumi 1 cells were incubated with YM155 (0.25 x IC50) in the presence or absence of i) 0.5 x IC50 or ii) 1 x IC50 of Daunorubicin or iii) 0.5 x IC50 or iv) 1 x IC50 of Cytarabine for 72h. Following 72h treatment, cells were subject to a resazurin reduction assay. Percentages were normalised to DMSO controls. Column, mean of 3 independent experiments; Bars, SEM. *p<0.05, **p<0.01, ***p<0.005. Students t-test. Similar trends were observed with 0.5 x and 1 x IC50 of YM155 in combination with Daunorubicin or Cytarabine (data not shown).

Immunofluorescence of NF-κB/p65 in HCT 116 and SW 1116 cells exposed to TNFα (25 ng/ml) with or without nafamostat mesilate(FLU) (100 μM). Scale bars: 20 μm.

The effect of drugs on sperm movement. Purified human sperm were incubated under capacitating conditions for 0, 15, 30, 60 or 120 min, and motility was measured in the presence of disulfirum. The standard deviation is shown as bars. Statistical differences by Student's t-test compared with control are annotated as “*” for p<0.05 or “**” for p<0.01.

HIV PIs variably alter intracellular HIV epitope stability. (A) HLA-A02–restricted SL9 epitope (SLYNTVATL, aa 77–85 in HIV-1 Gag p17) was degraded in PBMC extracts pretreated with DMSO (control, circles), 5 µM of Nelfinavir (triangles) or 5 µM of Saquinavir (squares). Remaining peptide was quantified by RP-HPLC analysis after 0, 10, 30 and 60 minutes. 100% represents the amount of peptide at time 0 calculated as the surface under the peptide peak detected by RP-HPLC (815.986, 821.569, and 813.118 for DMSO, Saquinavir, and Nelfinavir, respectively). Times at which 50% of the SL9 peptide remained correspond to peptide half-lives (37 min, 52 min and 24 min for Control, Saquinavir and Nelfinavir respectively). (B–F) HLA-A02–SL9, HLA-B57-KF11, HLAB57-ISW9, HLA-B57-TW10 and HLA-A11-ATK9 epitopes (from B to F respectively) were degraded in PBMC extracts pretreated with DMSO, 2 µM or 5 µM PI (Saquinavir, Ritonavir, Nelfinavir, Atazanavir or Darunavir). The cytosolic half-lives in control condition were 33.87, 25.66, 14.83, 119.4 and 37.21 minutes for SL9, KF11, ISW9, TW10 and ATK9 respectively. Fold differences of each epitope half-life upon treatment compared to control are presented in each panel. All data represent the average of 4 different experiments using 4 different PBMC extracts. *P < 0.05, **P < 0.01, ***P < 0.001, 1-way ANOVA with Dunnett’s post-test.
 

NCI-H929 EV and miR-137 OE cells were treated with ATM activator Chloroquine Phosphate (CQ), specific ATM inhibitor KU-55933, and ATR inhibitor AZ20 for 12 hr. Immunoblotting showed the expression of p-ATM, p-Chk2, p-BRCA1, p-ATR and p-Chk1.

Dexamethasone and largazole cooperate to suppress invasion and to restore E-cadherin localization to the cell peripher y. ( a) Phase contrast micrographs showing morphological changes in MDA-MB-231 cells induced by E-cadherin expression combined with 100 nM dexamethasone and 10 nM largazole treatments. Insets show the cells at higher magnification. (b ) Fluorescence (E-Cad-GFP) or immunofluorescence microscopy (g -catenin (g-Cat.)) of 231/E-Cad-GFP cells treated for 72 h with vehicle (Control), 100 n M dexamethasone, 10 nM largazole or 100 nM dexamethasone + 10 nM largazole (Dex. + Larg.). (c ) Invasion assays were per formed with the indicated cell lines treated for 72 h with or without 100 nM dexamethasone + 10 nM largazole using modified Boyden chambers impregnated with matrigel. The results are presented as the average number of cells that invaded through the membrane per field s.d. of five randomly chosen fields, and are representative of three independently per formed experiments.

Dexamethasone and largazole cooperate to suppress invasion and to restore E-cadherin localization to the cell peripher y. ( a) Phase contrast micrographs showing morphological changes in MDA-MB-231 cells induced by E-cadherin expression combined with 100 nM dexamethasone and 10 nM largazole treatments. Insets show the cells at higher magnification. (b ) Fluorescence (E-Cad-GFP) or immunofluorescence microscopy (g -catenin (g-Cat.)) of 231/E-Cad-GFP cells treated for 72 h with vehicle (Control), 100 n M dexamethasone, 10 nM largazole or 100 nM dexamethasone + 10 nM largazole (Dex. + Larg.). (c ) Invasion assays were per formed with the indicated cell lines treated for 72 h with or without 100 nM dexamethasone + 10 nM largazole using modified Boyden chambers impregnated with matrigel. The results are presented as the average number of cells that invaded through the membrane per field s.d. of five randomly chosen fields, and are representative of three independently per formed experiments.

Schistosomicidal effects of PZQ, ART and OXA on 14-day-schistosomula. Magnification of the in vitro-cultured schistosomula treated with PZQ, ART, and OXA at 10 μM. Drugs were added at day 14 and schistosomula were analyzed at day 21 (late treatment). 0.1% DMSO in medium (solvent of the drugs; used as negative control) had no effect on schistosomula development.

Dexamethasone and largazole cooperate to suppress invasion and to restore E-cadherin localization to the cell peripher y. ( a) Phase contrast micrographs showing morphological changes in MDA-MB-231 cells induced by E-cadherin expression combined with 100 nM dexamethasone and 10 nM largazole treatments. Insets show the cells at higher magnification. (b ) Fluorescence (E-Cad-GFP) or immunofluorescence microscopy (g -catenin (g-Cat.)) of 231/E-Cad-GFP cells treated for 72 h with vehicle (Control), 100 n M dexamethasone, 10 nM largazole or 100 nM dexamethasone + 10 nM largazole (Dex. + Larg.). (c ) Invasion assays were per formed with the indicated cell lines treated for 72 h with or without 100 nM dexamethasone + 10 nM largazole using modified Boyden chambers impregnated with matrigel. The results are presented as the average number of cells that invaded through the membrane per field s.d. of five randomly chosen fields, and are representative of three independently per formed experiments.

MDA-MB-231 cells were treated with simvastatin (SIM) or rosuvastatin (ROSU) in combination with ZOL for 48 h. Vitality and apoptosis were measured by using the cell titer blue and the caspase 3/7 Glo assay. Data are shown as mean ± SD of at least three individual experiments (*p ≤ 0.05; **p ≤ 0.01; ***p ≤ 0.001).

bDNA analysis showing that the JAK1/2 inhibitors CYT387, AZD1480 and Baricitinib positively regulate UCP1 expression in PSC-WA. Values are mean ± s.d. of n = three biological replicates and differences from DMSO are significant for * P < 0.005. P values were calculated using the two-tailed paired Student's t-test.

The Nucleotide analog reverse-transcriptase inhibitor Tenofovir disoproxil fumarate was added to TZM-bl cells. Cells were inoculated with 0.05 ng mock-exposed and semen-exposed HIV, and 0.5 ng HIV as infectivity-matched control. Infection rates were measured 3 days post infection by measuring β-galactosidase or or 4 days post infection by measuring luciferase activities. The left panels show the mean enzyme activities ± standard deviation derived from triplicate infections. RLU/s: relative light units per second. Middle panels show normalized infection rates in which reporter enzyme activities obtained from infected cells in the absence of inhibitor were set at 100%. The right panels depict the calculated IC50 values. The number above the bar represents the fold-change in the IC50 derived from 0.05 ng semen-exposed relative to 0.05 or 0.5 ng mock-exposed virus infection. Ns, no statistically significant difference; **** p<0.0001; *** p<0.001 (unpaired t-test).

(A) NPCs were treated with 3µM of the GSK3 inhibitor (tideglusib) for 24 hours. Representative images of untreated SPG11-NPCs (SPG11‐NT) and tideglusib-treated SPG11-NPCs (SPG11-Tide) on day 3. Cell proliferation was analyzed using colabeling of PCNA in Nestin/Sox2-positive NPCs. Nuclei were visualized with DAPI. Scale bar = 50µm. (B) Increased numbers of Nestin/Sox2‐positive cells colabeled with PCNA in CHIR99021-treated SPG11-NPCs. (C) Tideglusib-treated SPG11-NPCs, compared to untreated NPCs, revealed restoration of cell proliferation similar to the CTRL‐NPCs.

A) MV411 or B) Kasumi 1 cells were incubated with YM155 (0.25 x IC50) in the presence or absence of i) 0.5 x IC50 or ii) 1 x IC50 of Daunorubicin or iii) 0.5 x IC50 or iv) 1 x IC50 of Cytarabine for 72h. Following 72h treatment, cells were subject to a resazurin reduction assay. Percentages were normalised to DMSO controls. Column, mean of 3 independent experiments; Bars, SEM. *p<0.05, **p<0.01, ***p<0.005. Students t-test. Similar trends were observed with 0.5 x and 1 x IC50 of YM155 in combination with Daunorubicin or Cytarabine (data not shown).

Immunofluorescence of NF-κB/p65 in HCT 116 and SW 1116 cells exposed to TNFα (25 ng/ml) with or without nafamostat mesilate(FLU) (100 μM). Scale bars: 20 μm.

The effect of drugs on sperm movement. Purified human sperm were incubated under capacitating conditions for 0, 15, 30, 60 or 120 min, and motility was measured in the presence of disulfirum. The standard deviation is shown as bars. Statistical differences by Student's t-test compared with control are annotated as “*” for p<0.05 or “**” for p<0.01.

HIV PIs variably alter intracellular HIV epitope stability. (A) HLA-A02–restricted SL9 epitope (SLYNTVATL, aa 77–85 in HIV-1 Gag p17) was degraded in PBMC extracts pretreated with DMSO (control, circles), 5 µM of Nelfinavir (triangles) or 5 µM of Saquinavir (squares). Remaining peptide was quantified by RP-HPLC analysis after 0, 10, 30 and 60 minutes. 100% represents the amount of peptide at time 0 calculated as the surface under the peptide peak detected by RP-HPLC (815.986, 821.569, and 813.118 for DMSO, Saquinavir, and Nelfinavir, respectively). Times at which 50% of the SL9 peptide remained correspond to peptide half-lives (37 min, 52 min and 24 min for Control, Saquinavir and Nelfinavir respectively). (B–F) HLA-A02–SL9, HLA-B57-KF11, HLAB57-ISW9, HLA-B57-TW10 and HLA-A11-ATK9 epitopes (from B to F respectively) were degraded in PBMC extracts pretreated with DMSO, 2 µM or 5 µM PI (Saquinavir, Ritonavir, Nelfinavir, Atazanavir or Darunavir). The cytosolic half-lives in control condition were 33.87, 25.66, 14.83, 119.4 and 37.21 minutes for SL9, KF11, ISW9, TW10 and ATK9 respectively. Fold differences of each epitope half-life upon treatment compared to control are presented in each panel. All data represent the average of 4 different experiments using 4 different PBMC extracts. *P < 0.05, **P < 0.01, ***P < 0.001, 1-way ANOVA with Dunnett’s post-test.
 

NCI-H929 EV and miR-137 OE cells were treated with ATM activator Chloroquine Phosphate (CQ), specific ATM inhibitor KU-55933, and ATR inhibitor AZ20 for 12 hr. Immunoblotting showed the expression of p-ATM, p-Chk2, p-BRCA1, p-ATR and p-Chk1.

Dexamethasone and largazole cooperate to suppress invasion and to restore E-cadherin localization to the cell peripher y. ( a) Phase contrast micrographs showing morphological changes in MDA-MB-231 cells induced by E-cadherin expression combined with 100 nM dexamethasone and 10 nM largazole treatments. Insets show the cells at higher magnification. (b ) Fluorescence (E-Cad-GFP) or immunofluorescence microscopy (g -catenin (g-Cat.)) of 231/E-Cad-GFP cells treated for 72 h with vehicle (Control), 100 n M dexamethasone, 10 nM largazole or 100 nM dexamethasone + 10 nM largazole (Dex. + Larg.). (c ) Invasion assays were per formed with the indicated cell lines treated for 72 h with or without 100 nM dexamethasone + 10 nM largazole using modified Boyden chambers impregnated with matrigel. The results are presented as the average number of cells that invaded through the membrane per field s.d. of five randomly chosen fields, and are representative of three independently per formed experiments.

Dexamethasone and largazole cooperate to suppress invasion and to restore E-cadherin localization to the cell peripher y. ( a) Phase contrast micrographs showing morphological changes in MDA-MB-231 cells induced by E-cadherin expression combined with 100 nM dexamethasone and 10 nM largazole treatments. Insets show the cells at higher magnification. (b ) Fluorescence (E-Cad-GFP) or immunofluorescence microscopy (g -catenin (g-Cat.)) of 231/E-Cad-GFP cells treated for 72 h with vehicle (Control), 100 n M dexamethasone, 10 nM largazole or 100 nM dexamethasone + 10 nM largazole (Dex. + Larg.). (c ) Invasion assays were per formed with the indicated cell lines treated for 72 h with or without 100 nM dexamethasone + 10 nM largazole using modified Boyden chambers impregnated with matrigel. The results are presented as the average number of cells that invaded through the membrane per field s.d. of five randomly chosen fields, and are representative of three independently per formed experiments.

Schistosomicidal effects of PZQ, ART and OXA on 14-day-schistosomula. Magnification of the in vitro-cultured schistosomula treated with PZQ, ART, and OXA at 10 μM. Drugs were added at day 14 and schistosomula were analyzed at day 21 (late treatment). 0.1% DMSO in medium (solvent of the drugs; used as negative control) had no effect on schistosomula development.