1. Cell Cycle/DNA Damage
    PI3K/Akt/mTOR
    Apoptosis
  2. DNA-PK
    PI3K
    Apoptosis
  3. PIK-75

PIK-75 

Cat. No.: HY-107834
Handling Instructions

PIK-75 is a reversible DNA-PK and p110α-selective inhibitor, which inhibits DNA-PK, p110α and p110γ with IC50s of 2, 5.8 and 76 nM, respectively. PIK-75 inhibits p110α >200-fold more potently than p110β (IC50=1.3 μM). PIK-75 induces apoptosis.

For research use only. We do not sell to patients.

PIK-75 Chemical Structure

PIK-75 Chemical Structure

CAS No. : 372196-67-3

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Description

PIK-75 is a reversible DNA-PK and p110α-selective inhibitor, which inhibits DNA-PK, p110α and p110γ with IC50s of 2, 5.8 and 76 nM, respectively. PIK-75 inhibits p110α >200-fold more potently than p110β (IC50=1.3 μM)[1][2]. PIK-75 induces apoptosis[3].

IC50 & Target

DNA-PK

2 nM (IC50)

p110α

5.8 nM (IC50)

p110γ

76 nM (IC50)

p110δ

510 nM (IC50)

p110β

1.3 μM (IC50)

hsVPS34

2.6 μM (IC50)

PI3KC2β

1 μM (IC50)

PI3KC2α

10 μM (IC50)

mTORC1

1 μM (IC50)

mTORC2

10 μM (IC50)

ATM

2.3 μM (IC50)

ATR

21 μM (IC50)

PI4KIIIβ

50 μM (IC50)

In Vitro

PIK-75 also inhibits p110δ, PI3KC2β, mTORC1, ATM, hsVPS34, PI3KC2α, mTORC2, ATR and PI4KIIIβ with IC50s of 510 nM, ~1 μM, ~1 μM, 2.3 μM, 2.6 μM, ~10 μM, ~10 μM, 21 μM, ~50 μM, respectively[1].
PIK-75 alone blocks Thr 308 phosphorylation in L6 myotubes and 3T3-L1 adipocytes with IC50 values of 1.2 and 1.3 μM, respectively[1].
PIK-75 (1-1000 nM; 5 min) blocks the phosphorylation of PKB induced by insulin on both Ser473and Thr308 in CHO-IR cells in a dose-dependent manner, with an IC50 of 78 nM[2].
PIK-75 (0.1-1000 nM; 48 hours) inhibits the proliferation and survival of pancreatic cancer cells through apoptotic cell death[3].
PIK-75 (0.1-1000 nM) also reduces the colony formation of pancreatic cancer MIA PaCa-2 and AsPC-1 cells[3].

Cell Viability Assay[3]

Cell Line: Human pancreatic cancer cells (MIA PaCa-2 or AsPC-1)
Concentration: 0.1, 0.3, 1, 3, 10, 30, 100, 300, and 1000 nM
Incubation Time: 48 hours
Result: Submicromolar concentration was sufficient to inhibit the proliferation of pancreatic cancer, MIA PaCa-2 and AsPC-1 cells after 48-h treatment.

Western Blot Analysis[2]

Cell Line: Overnight-starved CHO-IR cells
Concentration: 1, 10, 100, 1000 nM
Incubation Time: 5 minutes
Result: Blocked the phosphorylation of PKB induced by insulin (1 nM, 10 min) on both Ser473and Thr308 in a dose-dependent manner. PIK-75 potentiates anticancer activity of Gemcitabine (20 mg/kg) in vivo. Gemcitabine (20 mg/kg) or PIK-75 (2 mg/kg) alone reduces the tumor growth to similar degree. Beneficial effect of PIK-75/Gemcitabine is evident as this combination markedly reduces the tumor growth in vivowithout affecting the body weights of mice[3].
In Vivo

PIK-75 (2 mg/kg) potentiates anticancer activity of Gemcitabine (20 mg/kg) in vivo. Gemcitabine (20 mg/kg) or PIK-75 (2 mg/kg) alone reduces the tumor growth to similar degree. Beneficial effect of PIK-75/Gemcitabine is evident as this combination markedly reduces the tumor growth in vivowithout affecting the body weights of mice[3].

Animal Model: Mice bearing tumors of MIA PaCa-2[3]
Dosage: 2 mg/kg; or combination with Gemcitabine (20 mg/kg)
Administration: Administered injection; 5 times per week. 25 days
Result: Reduced the tumor growth and enhanced the antitumor effect.
Molecular Weight

452.28

Formula

C₁₆H₁₄BrN₅O₄S

CAS No.

372196-67-3

SMILES

O=S(C1=CC([N+]([O-])=O)=CC=C1C)(N(C)/N=C/C2=CN=C3C=CC(Br)=CN32)=O

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

References
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Keywords:

PIK-75PIK75PIK 75DNA-PKPI3KApoptosisDNA-dependent protein kinasePhosphoinositide 3-kinasep110αPKBCHO-IRcellspancreaticcancerapoptoticInhibitorinhibitorinhibit

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