PLK
Isoform-specific Inhibitors
PLK Products
Catalog No. | Information | Product Use Citations | Product Validations |
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S1109 |
BI 2536BI-2536 is a potent Plk1 inhibitor with IC50 of 0.83 nM in a cell-free assay. BI-2536 inhibits Bromodomain 4 (BRD4) with Kd of 37 nM and potently suppresses c-Myc expression. BI-2536 induces apoptosis and attenuates autophagy. Phase 2. |
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S2235 |
Volasertib (BI 6727)Volasertib (BI 6727) is a highly potent Plk1 inhibitor with IC50 of 0.87 nM in a cell-free assay. It shows 6- and 65-fold greater selectivity against Plk2 and Plk3. Volasertib induces cell cycle arrest and apoptosis in various cancer cells. Phase 3. |
![]() ![]() Western blot analysis. HeLa or MCF7 cells were treated with nocodazole (noc, 50 ng/ml), paclitaxel (pacli, 50 nM), the Plk1 inhibitor BI 2536 (50 nM) or BI 6727 (50 nM) for 16 h and cellular extracts were prepared for western blot analysis with antibodies as indicated. con: cellular extracts from control cells without any treatment. β-actin served as loading control. |
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S2758 |
WortmanninWortmannin (KY 12420) is the first described PI3K inhibitor with IC50 of 3 nM in a cell-free assay, with little selectivity within the PI3K family. Wortmannin blocks autophagosome formation and potently inhibits DNA-PK/ATM with IC50 of 16 nM and 150 nM in cell-free assays. Wortmannin also inhibits PLK1 activity. |
![]() ![]() L3.6pl cells at 6,000 cells per well were incubated in MEM with 5% FBS in triplicate in a 96-well culture plate and then treated alone with 5 umol/L BMS-777607, 10 umol/L wortmannin, or with BMS-777607 in combination with individual inhibitors. Polyploidy was examined under BK71 Olympus microscope and photographed 72 hours after treatment. |
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S1362 |
Rigosertib (ON-01910)Rigosertib (ON-01910) is a non-ATP-competitive inhibitor of PLK1 with IC50 of 9 nM in a cell-free assay. It shows 30-fold greater selectivity against Plk2 and no activity to Plk3. Rigosertib inhibits PI3K/Akt pathway and activates oxidative stress signals. Rigosertib induces apoptosis in various cancer cells. Phase 3. |
![]() ![]() Along with cell death, immunoblotting shows ON 01910.Na induces hyperphosphorylation of RanGAP1, increased expression of RanGAP1.SUMO1 but decreased expression of free unmodified RanGAP1. No viable SU-DHL-5 cells were available for immunoblotting at 0.5 uM of ON 01910.Na.
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S2193 |
GSK461364GSK461364 inhibits purified Plk1 with Ki of 2.2 nM in a cell-free assay. It is more than 1000-fold selective against Plk2/3. Phase 1. |
![]() ![]() Cells with decreased GRK5 expression are more sensitive to PLK1 inhibition.A , shown is cell death in control or GRK5-shRNA stably transfected cells after 72 h of treatment with 0-120 nM BI 2536 as determined by trypan blue exclusion (n = 6).B , shown is cell death in control or GRK5-shRNA stably transfected cells after 72 h treatment with 0 –120 nM GSK461364, as determined by trypan blue exclusion ( n = 4). |
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S1485 |
HMN-214HMN-214 is a prodrug of HMN-176, which alters the cellular spatial orientation of Plk1. |
![]() ![]() Intracellular trafficking of plasmid DNA in the presence and absence of PLK1 inhibitors. PC3-PSMA cells were transfected with polyplexes of PEI:fluorescein (green)-labeled plasmid DNA at a weight ratio of 1:4. Cells treated with A) vehicle control (DMSO) and B) 25 nM BI 2536 are shown 48 h after co-treatment with polyplexes. Cells treated with C) vehicle control (DMSO) and D) HMN-214 are shown 24 h after co-treatment with polyplexes. Scale bar = 20 μm. Blue signal indicates DAPI-stained nuclei, and white arrows indicate sequestration of plasmid DNA in the perinuclear recycling compartment (PNRC). Red arrows indicate altered plasmid DNA localization following treatment with PLK1 inhibitors. Images are representative of three independent experiments (N = 3). (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.) |
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S2898 |
MLN0905MLN0905 is a potent inhibitor of PLK1 with IC50 of 2 nM. |
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S7248 |
Ro3280RO3280 (Ro5203280) is a potent, highly selective inhibitor of Polo-like kinase 1 (PLK1) with IC50 of 3 nM. |
![]() ![]() RO3280 promotes the formation of multinucleated cells in bladder cancer cell lines. (A) Representative images of cells stained with DAPI (blue) and alpha‐tubulin (red) were examined under a fluorescence microscope (magnification 400×). Enlarged cells containing multiple evenly stained nuclei (multinucleated cells) are characteristic of mitotic catastrophe (white arrow). (B) Quantification of the percentage of multinucleated cells based on fluorescence microscopy analysis (the data are presented as the mean ± S.E.M., *P < 0.05).
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S5807 |
HMN-176HMN-176 is an active metabolite of HMN-214, which has a potent antitumor activity in mouse xenograft models. HMN-176 effectively inhibits PLK-1 by interference with its normal subcellular spatial distribution at centrosomes and along the cytoskeletal structure. |
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S7255 |
Onvansertib (NMS-P937)Onvansertib (NMS-P937, PCM-075, NMS1286937) is an orally available, selective Polo-like Kinase 1 (PLK1) inhibitor with IC50 of 2 nM, 5000-fold selectivity over PLK2/PLK3. Onvansertib (NMS-P937) potently causes a mitotic cell-cycle arrest followed by apoptosis in cancer cell lines and inhibits tumor growth. Phase 1. |
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S7552 |
CFI-400945CFI-400945 is an orally active, potent and selective polo-like kinase 4(PLK4) inhibitor with Ki value of 0.26 nM. |
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S7720 |
SBE 13 HClSBE 13 HCl is a potent and selective PLK1 inhibitor with IC50 of 200 pM, >4000-fold selectivity over Aurora A kinase, Plk2 and Plk3. |
Catalog No. | Information | Product Use Citations | Product Validations |
---|---|---|---|
S1109 |
BI 2536BI-2536 is a potent Plk1 inhibitor with IC50 of 0.83 nM in a cell-free assay. BI-2536 inhibits Bromodomain 4 (BRD4) with Kd of 37 nM and potently suppresses c-Myc expression. BI-2536 induces apoptosis and attenuates autophagy. Phase 2. |
![]() ![]() |
|
S2235 |
Volasertib (BI 6727)Volasertib (BI 6727) is a highly potent Plk1 inhibitor with IC50 of 0.87 nM in a cell-free assay. It shows 6- and 65-fold greater selectivity against Plk2 and Plk3. Volasertib induces cell cycle arrest and apoptosis in various cancer cells. Phase 3. |
![]() ![]() Western blot analysis. HeLa or MCF7 cells were treated with nocodazole (noc, 50 ng/ml), paclitaxel (pacli, 50 nM), the Plk1 inhibitor BI 2536 (50 nM) or BI 6727 (50 nM) for 16 h and cellular extracts were prepared for western blot analysis with antibodies as indicated. con: cellular extracts from control cells without any treatment. β-actin served as loading control. |
|
S2758 |
WortmanninWortmannin (KY 12420) is the first described PI3K inhibitor with IC50 of 3 nM in a cell-free assay, with little selectivity within the PI3K family. Wortmannin blocks autophagosome formation and potently inhibits DNA-PK/ATM with IC50 of 16 nM and 150 nM in cell-free assays. Wortmannin also inhibits PLK1 activity. |
![]() ![]() L3.6pl cells at 6,000 cells per well were incubated in MEM with 5% FBS in triplicate in a 96-well culture plate and then treated alone with 5 umol/L BMS-777607, 10 umol/L wortmannin, or with BMS-777607 in combination with individual inhibitors. Polyploidy was examined under BK71 Olympus microscope and photographed 72 hours after treatment. |
|
S1362 |
Rigosertib (ON-01910)Rigosertib (ON-01910) is a non-ATP-competitive inhibitor of PLK1 with IC50 of 9 nM in a cell-free assay. It shows 30-fold greater selectivity against Plk2 and no activity to Plk3. Rigosertib inhibits PI3K/Akt pathway and activates oxidative stress signals. Rigosertib induces apoptosis in various cancer cells. Phase 3. |
![]() ![]() Along with cell death, immunoblotting shows ON 01910.Na induces hyperphosphorylation of RanGAP1, increased expression of RanGAP1.SUMO1 but decreased expression of free unmodified RanGAP1. No viable SU-DHL-5 cells were available for immunoblotting at 0.5 uM of ON 01910.Na.
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S2193 |
GSK461364GSK461364 inhibits purified Plk1 with Ki of 2.2 nM in a cell-free assay. It is more than 1000-fold selective against Plk2/3. Phase 1. |
![]() ![]() Cells with decreased GRK5 expression are more sensitive to PLK1 inhibition.A , shown is cell death in control or GRK5-shRNA stably transfected cells after 72 h of treatment with 0-120 nM BI 2536 as determined by trypan blue exclusion (n = 6).B , shown is cell death in control or GRK5-shRNA stably transfected cells after 72 h treatment with 0 –120 nM GSK461364, as determined by trypan blue exclusion ( n = 4). |
|
S1485 |
HMN-214HMN-214 is a prodrug of HMN-176, which alters the cellular spatial orientation of Plk1. |
![]() ![]() Intracellular trafficking of plasmid DNA in the presence and absence of PLK1 inhibitors. PC3-PSMA cells were transfected with polyplexes of PEI:fluorescein (green)-labeled plasmid DNA at a weight ratio of 1:4. Cells treated with A) vehicle control (DMSO) and B) 25 nM BI 2536 are shown 48 h after co-treatment with polyplexes. Cells treated with C) vehicle control (DMSO) and D) HMN-214 are shown 24 h after co-treatment with polyplexes. Scale bar = 20 μm. Blue signal indicates DAPI-stained nuclei, and white arrows indicate sequestration of plasmid DNA in the perinuclear recycling compartment (PNRC). Red arrows indicate altered plasmid DNA localization following treatment with PLK1 inhibitors. Images are representative of three independent experiments (N = 3). (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.) |
|
S2898 |
MLN0905MLN0905 is a potent inhibitor of PLK1 with IC50 of 2 nM. |
||
S7248 |
Ro3280RO3280 (Ro5203280) is a potent, highly selective inhibitor of Polo-like kinase 1 (PLK1) with IC50 of 3 nM. |
![]() ![]() RO3280 promotes the formation of multinucleated cells in bladder cancer cell lines. (A) Representative images of cells stained with DAPI (blue) and alpha‐tubulin (red) were examined under a fluorescence microscope (magnification 400×). Enlarged cells containing multiple evenly stained nuclei (multinucleated cells) are characteristic of mitotic catastrophe (white arrow). (B) Quantification of the percentage of multinucleated cells based on fluorescence microscopy analysis (the data are presented as the mean ± S.E.M., *P < 0.05).
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S5807 |
HMN-176HMN-176 is an active metabolite of HMN-214, which has a potent antitumor activity in mouse xenograft models. HMN-176 effectively inhibits PLK-1 by interference with its normal subcellular spatial distribution at centrosomes and along the cytoskeletal structure. |
||
S7255 |
Onvansertib (NMS-P937)Onvansertib (NMS-P937, PCM-075, NMS1286937) is an orally available, selective Polo-like Kinase 1 (PLK1) inhibitor with IC50 of 2 nM, 5000-fold selectivity over PLK2/PLK3. Onvansertib (NMS-P937) potently causes a mitotic cell-cycle arrest followed by apoptosis in cancer cell lines and inhibits tumor growth. Phase 1. |
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S7552 |
CFI-400945CFI-400945 is an orally active, potent and selective polo-like kinase 4(PLK4) inhibitor with Ki value of 0.26 nM. |
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S7720 |
SBE 13 HClSBE 13 HCl is a potent and selective PLK1 inhibitor with IC50 of 200 pM, >4000-fold selectivity over Aurora A kinase, Plk2 and Plk3. |