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MD13

Cat No.:V75085 Purity: ≥98%
MD13 is a macrophage migration inhibitory factor (MIF)-directed PROTAC with a Ki of 71 nM.
MD13
MD13 Chemical Structure CAS No.: 2758431-97-7
Product category: PROTACs
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
5mg
Other Sizes
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Product Description
MD13 is a macrophage migration inhibitory factor (MIF)-directed PROTAC with a Ki of 71 nM. MD13 could be used in cancer research.
MD13 is a potent macrophage migration inhibitory factor (MIF)-directed PROTAC (proteolysis-targeting chimera) degrader with a Ki of 71 nM. It comprises the cereblon E3 ligase ligand pomalidomide linked to a MIF inhibitor. MD13 induces MIF degradation via the ubiquitin-proteasome pathway, representing a novel approach to MIF inhibition beyond catalytic inhibition.
Biological Activity I Assay Protocols (From Reference)
Targets
Ki: 71 nM (MIF)[1]
MIF (Macrophage Migration Inhibitory Factor).
ln Vitro
At 2 μM and 0.2 μM, MD13 degrades MIF by 91±5% and 71±7%, respectively. By binding to E3 ligase cereblon, MD13 causes MIF degradation[1]. A549 cancer cells' ability to proliferate is inhibited by MD13 (0–20 μM; 72 hours)[1]. In A549 cells, MD13 (1–5 μM; 48 h) stops the cell cycle at the G2/M phase[1]. ERK signalling is inhibited by MD13 (2 μM; 6-48 h)[1].
MD13 is a MIF-directed PROTAC degrader with a Ki of 71 nM and DC50 <100 nM. It induces MIF degradation with a Dmax (maximum degradation) of 92% after 6 hours of treatment. MD13 reduces cellular MIF protein levels, arrests cells at the G2/M phase, and inhibits the proliferation of A549 lung carcinoma cells. It also inhibits the growth of A549 cell 3D spheroids, demonstrating anti-cancer activity.
ln Vivo
No in vivo activity data for MD13 is publicly available. PROTAC degraders typically show improved in vivo efficacy compared to traditional inhibitors due to sustained target degradation. MIF degradation in vivo could potentially reduce tumor growth, inflammation, and metastasis in murine models, but specific data for MD13 is not reported.
Enzyme Assay
Not available. A generic MIF binding affinity assay for PROTACs is performed by surface plasmon resonance (SPR) or isothermal titration calorimetry (ITC). For SPR: Recombinant human MIF is immobilized on a sensor chip. MD13 (0.1 nM-10 microM) is injected in running buffer (PBS-T, pH 7.4, 0.01% DMSO). Association and dissociation rates are measured, and Ki (71 nM) is calculated (KD = koff/kon). For degradation assays, HEK293T cells expressing cereblon are treated with MD13 (0-20 microM, 1-24 h), and MIF protein levels are measured by Western blot using anti-MIF antibody. DC50 and Dmax (92% at 6 h) are determined by densitometry.
Cell Assay
Western Blot Analysis[1]
Cell Types: A549 cells
Tested Concentrations: 0-20 μM
Incubation Duration: 12 h
Experimental Results: Caused depletion of MIF protein.

Western Blot Analysis[1]
Cell Types: A549 cells
Tested Concentrations: 2 μM
Incubation Duration: 6, 24 or 48 h
Experimental Results: Inhibited ERK phosphorylation.

Cell Proliferation Assay[1]
Cell Types: A549 cells
Tested Concentrations: 0-20 μM
Incubation Duration: 72 h
Experimental Results: Inhibited the growth of A549 cells in a dose-dependent manner. The inhibitory effect reached about 50% inhibition of cell proliferation at a concentration of 20 µM.

Cell Cycle Analysis[1]
Cell Types: A549 cells
Tested Concentrations: 1, 2, or 5 µM
Incubation Duration: 48 h
Experimental Results: Dose-dependently induced cell cycle arrest at the G2 /M phase.
A549 human lung carcinoma cells are seeded in 6-well plates (2×10⁵/well) in RPMI-1640 with 10% FBS and incubated for 24 h. Cells are treated with MD13 (0-20 microM) for 6-24 h. Cell lysates are collected and analyzed by Western blot with anti-MIF, anti-cereblon, and anti-beta-actin (loading control) antibodies. For proliferation assays, A549 cells are seeded in 96-well plates (5×103/well) and treated with MD13 (0-20 microM) for 48-72 h. Cell viability is measured by MTT or CellTiter-Glo. For cell cycle analysis, A549 cells are treated with MD13 (0-10 microM) for 24-48 h, fixed with 70% ethanol, stained with propidium iodide, and analyzed by flow cytometry for cell cycle distribution (G1, S, G2/M phases). For 3D spheroid assays, A549 cells are seeded in ultra-low attachment 96-well plates (1×103/well) and cultured for 7 days to form spheroids, then treated with MD13 for 72 h. Spheroid size is measured by light microscopy and image analysis.
Animal Protocol
No animal protocol is published. Generic protocol for PROTAC degraders in vivo: female BALB/c nude mice (6-8 weeks) are injected subcutaneously with A549 cells (5×10⁶ in 100 microL PBS). When tumors reach ~100 mm3, mice are randomized (n=8-10/group). MD13 is formulated in 10% DMSO/40% PEG300/5% Tween-80/45% saline or 0.5% methylcellulose and administered intraperitoneally or orally at 10-50 mg/kg daily for 2-3 weeks. Tumor volumes are measured biweekly. At termination, tumors are harvested and analyzed for MIF protein levels by Western blot and immunohistochemistry (to confirm target degradation in vivo). Plasma and tissue samples are collected for PK/PD analysis.
ADME/Pharmacokinetics
No PK data for MD13 is publicly available. Generic PK for PROTAC molecules (MW ~650-1000 Da): oral bioavailability is often low (<20%) due to high molecular weight, polar surface area, and efflux transporter liability (P-gp, BCRP). Half-life is typically short (1-3 h) in mice. Intraperitoneal or intravenous administration may be preferred for in vivo studies. Degradation activity may persist beyond PK half-life due to sustained MIF protein turnover delay. Protein binding is typically high (>90%).
Toxicity/Toxicokinetics
No toxicity data reported for MD13. Generic toxicity for PROTACs: ICR mice (5/sex/group) receive a single intraperitoneal dose of MD13 at 10, 30, 100 mg/kg. Animals are observed for 14 days for mortality, clinical signs, body weight, and food consumption. At termination, blood is collected for hematology (CBC, differential) and serum chemistry (ALT, AST, BUN, creatinine, total protein). Gross necropsy and histopathology of major organs (liver, kidney, spleen, heart, lung, GI tract, brain) are performed. Potential toxicities associated with MIF degradation (e.g., immune modulation) and cereblon engagement (e.g., thalidomide-like developmental toxicity) should be evaluated.
References

[1]. Proteolysis Targeting Chimera (PROTAC) for Macrophage Migration Inhibitory Factor (MIF) Has Anti-Proliferative Activity in Lung Cancer Cells. Angew Chem Int Ed Engl. 2021 Aug 2;60(32):17514-17521.

Additional Infomation
MD13 is the first reported MIF-directed PROTAC degrader, representing a novel therapeutic strategy that moves beyond traditional tautomerase inhibition to disrupt key inflammation- and cancer-related protein-protein interactions involving MIF. Developed by Dekker and colleagues, MD13 is a research tool for MIF biology and for validating MIF degradation as a therapeutic approach. MD13 is not FDA-approved and has not entered clinical trials. It is protected under license from Arvinas (PROTAC® is a registered trademark of Arvinas Operations, Inc.). MD13 is available for laboratory research use only.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C35H35N5O8
Molecular Weight
653.68
Exact Mass
653.248
CAS #
2758431-97-7
PubChem CID
163342432
Appearance
Typically exists as solid at room temperature
LogP
4.2
Hydrogen Bond Donor Count
4
Hydrogen Bond Acceptor Count
9
Rotatable Bond Count
12
Heavy Atom Count
48
Complexity
1240
Defined Atom Stereocenter Count
0
SMILES
C1CC(=O)NC(=O)C1N2C(=O)C3=C(C2=O)C(=CC=C3)NCCCCCCCC(=O)NC4=CC=C(C=C4)N5CC6=C(C=C(C=C6)O)OC5=O
InChi Key
HAHDZDUOFHMMEA-UHFFFAOYSA-N
InChi Code
InChI=1S/C35H35N5O8/c41-24-15-10-21-20-39(35(47)48-28(21)19-24)23-13-11-22(12-14-23)37-29(42)9-4-2-1-3-5-18-36-26-8-6-7-25-31(26)34(46)40(33(25)45)27-16-17-30(43)38-32(27)44/h6-8,10-15,19,27,36,41H,1-5,9,16-18,20H2,(H,37,42)(H,38,43,44)
Chemical Name
8-[[2-(2,6-dioxopiperidin-3-yl)-1,3-dioxoisoindol-4-yl]amino]-N-[4-(7-hydroxy-2-oxo-4H-1,3-benzoxazin-3-yl)phenyl]octanamide
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
Solubility (In Vivo)
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.

Injection Formulations
(e.g. IP/IV/IM/SC)
Injection Formulation 1: DMSO : Tween 80: Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution 50 μL Tween 80 850 μL Saline)
*Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution.
Injection Formulation 2: DMSO : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO 400 μLPEG300 50 μL Tween 80 450 μL Saline)
Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO 900 μL Corn oil)
Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals).
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Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO 900 μL (20% SBE-β-CD in saline)]
*Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.
Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin 500 μL Saline)
Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO 100 μLPEG300 200 μL castor oil 650 μL Saline)
Injection Formulation 7: Ethanol : Cremophor : Saline = 10: 10 : 80 (i.e. 100 μL Ethanol 100 μL Cremophor 800 μL Saline)
Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline
Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH 900 μL Corn oil)
Injection Formulation 10: EtOH : PEG300Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH 400 μLPEG300 50 μL Tween 80 450 μL Saline)


Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium)
Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose
Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals).
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Oral Formulation 3: Dissolved in PEG400
Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose
Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose
Oral Formulation 6: Mixing with food powders


Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.5298 mL 7.6490 mL 15.2980 mL
5 mM 0.3060 mL 1.5298 mL 3.0596 mL
10 mM 0.1530 mL 0.7649 mL 1.5298 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

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