Cobimetinib (GDC-0973, RG7420)

Catalog No.S8041 Synonyms: XL518

Cobimetinib (GDC-0973, RG7420) Chemical Structure

Molecular Weight(MW): 531.31

Cobimetinib (GDC-0973, RG7420) is a potent and highly selective MEK1 inhibitor with IC50 of 4.2 nM, showing more than 100-fold selectively for MEK1 over MEK2 and showed no significant inhibition when tested against a panel of more than 100 of serine-threonine and tyrosine kinases. Phase 3.

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Cited by 15 Publications

3 Customer Reviews

  • Three types of selective inhibitors of MAPK signaling produce expected differential kinase inhibition and activation responses in HCT116 colorectal cancer cells. HCT116 cells were treated with 250 nM of GDC-0973, GDC-0623, SCH772984 or DMSO for 1, 4, or 24 h. In the washout samples, cells were drug treated for 24 h, then changed into fresh media and harvested after 0.5 or 2 h. Lysates were used for Western blots of total and phosphorylated MEK, ERK, and RSK; blotting for COX IV was used as the loading control.

    Mol Cell Proteomics, 2017, 16(2):265-277. Cobimetinib (GDC-0973, RG7420) purchased from Selleck.

  • Western blots showing protein changes of p21, p53, cyclin D1, and cyclin E in HCT116 cells after treatment with 1 μM cobimetinib over different timespans.

    Cell Physiol Biochem, 2018, 47(2):680-693. Cobimetinib (GDC-0973, RG7420) purchased from Selleck.

  • Human-washed platelet aggregation was performed by optical aggregometry following stimulation with U46619 (0.25μM) in the presence or absence of LPS from E. coli O111:B4 (1μg/mL) after 3 min of incubation with Cobimetinib (100μM) before activation with U46619 (0.25μM) (B).

    PLoS One, 2017, 12(11):e0186981. Cobimetinib (GDC-0973, RG7420) purchased from Selleck.

Purity & Quality Control

Choose Selective MEK Inhibitors

Biological Activity

Description Cobimetinib (GDC-0973, RG7420) is a potent and highly selective MEK1 inhibitor with IC50 of 4.2 nM, showing more than 100-fold selectively for MEK1 over MEK2 and showed no significant inhibition when tested against a panel of more than 100 of serine-threonine and tyrosine kinases. Phase 3.
Targets
MEK1 [1]
(Cell-free assay)
4.2 nM
In vitro

Cobimetinib shows strong activity on cell growth inhibtion in a broad panel of tumor types, particularly in BRAF or KRAS mutant cancer cell lines. In combination with GDC-0941, GDC-0973 results in reduced viability, pathway inhibition, and increased apoptosis in 888MEL and A2058 cells. [1] Coadministration of GDC-0973 and vemurafenib significantly increases decreased levels of GLUT-1 on the cellular membrane across all BRAFV600E lines. [2]
Cell Data
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
human MDA-MB-231T cells NGLqZZRHfW6ldHnvckBie3OjeR?= NYHSWGt7OSCq NHfWNHVKdmirYnn0bY9vKG:oIF3FT{1u\WSrYYTl[EBGWktiVEKwNk9[OjB2IIDoc5NxcG:{eXzheIlwdiCrbjDoeY1idiCPRFGtUWIuOjNzVDDj[YxteyCjZoTldkAyKGi{IHL5JIludXWwb3Lsc5R1cW6p78{MJGlEPTB;MD6yJI5O NUjIWWxPOjR7MEC0PFY>
human COLO205 cells MXPGeY5kfGmxbjDhd5NigQ>? NVHXOZR4UW6qaXLpeIlwdiCxZjDCMZJi\iCYNkCwSUBufXSjboSgbY4hcHWvYX6gR29NVzJyNTDj[YxteyCjc4Pld5Nm\CCjczDy[YR2[3Srb36gc4YhTVKNMT;FVmszKHCqb4PwbI9zgWyjdHnvckwhUUN3ME2xMlghdk1? NFi5W5EzOjNzNUOzNi=>
human COLO205 cells M3nDU3Bzd2yrZnXyZZRqd25iYYPzZZk> NV:1TFZySW62aYDyc4xq\mW{YYTpeoUh[WO2aY\peJkh[WejaX7zeEBpfW2jbjDDU2xQOjB3IHPlcIx{KGW6cILld5NqdmdiQj3yZYYhXjZyMFWgcZV1[W62LDDJR|UxRThibl2= NI[3WmEzOjNzNUOzNi=>

... Click to View More Cell Line Experimental Data
Assay
Methods Test Index PMID
Western blot
pERK / ERK / MCL-1 / p-MCL1 / BIM / cleaved PARP; 

PubMed: 27765849     


RKO cells were treated with increasing doses of cobimetinib for 48 h and protein expression, including BIM isoforms [extra long (EL), long (L) and short (S)] and PARP cleavage (CL), were analyzed by immunboblotting. 

p-c-RAF / c-RAF / p-MEK / MEK; 

PubMed: 26384788     


Effect of cobimetinib on MAPK cascade pathway. Changes in activation status of RAF, MEK and ERK were evaluated in three NB cell lines after treatment with cobimetinib (1 μM) or DMSO for four hours. Cell lysates were made with lysis buffer containing prote䲧疝Ỵ疞㧀疜膉痘 瘿⟸෕ᾰƌ෕Ð 㺣痖帉痖Ѐ瑖堘𢡄빢᎒෕Ð鑸᎒彿堙奋堙巫堙᎒ﻺ᎒彿堙ﻮ᎒塚堙ﻺ᎒ꍈ堞빢᎒學堙漸堞圔堙빢᎒圞堙圭堙𢡄玚Wᾰƌ ᾰƌ戤瘯Ɖ�෋䐺痖暼瘿�෋ᾰƌ �෋Ð㺣痖�෋

27765849 26384788
Growth inhibition assay
Cell viability ; 

PubMed: 28098866     


MEL-XY3 cells were treated with different concentrations of GDC-0973 (0–10 µM) for 72 h and viability was determined using MTT assay. 

28098866
In vivo In mice bearing BRAFV600E and KRAS mutant tumors, Cobimetinib (10 mg/kg, p.o.) produces antitumor efficacy, and the combination of GDC-0973 and GDC-0941 show improved efficacy. [1] In mice bearing drug-resistant A375 xenografts, combination of GDC-0973 and GDC-0941 induces decreased levels of hexokinase II, c-RAF, Ksr and p-MEK protein. [2]

Protocol

Animal Research:

[1]
+ Expand
  • Animal Models: Molm-13, Molm-16, MX-1, DLD-1, HCT-116, LoVo, FaDu, 537MEL, A2058, A2058-X1, A375, A375.X1, A427, A549, Calu-6, EBC-1, NCI-H441, NCI-H2122, NCI-H460, NCI-H520.X1, SKOV-3, KP4-X1.1, MiaPaCa-2, 22Rv1, DU-145.X1,S, NCI-H69 xenograft tumors in mice
  • Formulation: --
  • Dosages: 10 mg/kg
  • Administration: p.o.
    (Only for Reference)

Solubility (25°C)

In vitro DMSO 100 mg/mL (188.21 mM)
Ethanol 47 mg/mL warmed (88.46 mM)
Water Insoluble
In vivo Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
5% DMSO+30% PEG 300+5% Tween 80+ddH2O
For best results, use promptly after mixing. 		5mg/mL

* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.

Chemical Information

Molecular Weight 531.31
Formula

C21H21F3IN3O2
CAS No. 934660-93-2
Storage powder
in solvent
Synonyms XL518

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Clinical Trial Information

NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT03732703 Not yet recruiting Relapsed Refractory Multiple Myeloma Multiple Myeloma Research Consortium|AbbVie|Celgene Corporation|Eli Lilly and Company|Genentech Inc.|Janssen LP|Takeda March 15 2019 Phase 1|Phase 2
NCT03732703 Not yet recruiting Relapsed Refractory Multiple Myeloma Multiple Myeloma Research Consortium|AbbVie|Celgene Corporation|Eli Lilly and Company|Genentech Inc.|Janssen LP|Takeda March 15 2019 Phase 1|Phase 2
NCT03625141 Recruiting Metastatic Melanoma Hoffmann-La Roche December 13 2018 Phase 2
NCT03625141 Recruiting Metastatic Melanoma Hoffmann-La Roche December 13 2018 Phase 2
NCT03695380 Recruiting OVARIAN CANCER Hoffmann-La Roche November 2 2018 Phase 1
NCT03695380 Recruiting OVARIAN CANCER Hoffmann-La Roche November 2 2018 Phase 1

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

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Frequently Asked Questions

  • Question 1:

    How to reconstitute the inhibitor for in vivo studies?

  • Answer:

    S8041 can be dissolved in 5% DMSO/30% PEG 300/5% Tween 80/ddH2O at 5 mg/ml clearly and it is ok for both oral gavage and injection.

selleck catalog

MEK Signaling Pathway Map

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID