2. Apoptosis
  3. Apoptosis
  4. HXR9

HXR9 is a cell-permeable peptide and a competitive antagonist of HOX/PBX interaction. HXR9 antagonizes the interaction between HOX and a second transcrip-tion factor (PBX), which binds to HOX proteins in paralogue groups1 to 8. HXR9 selectively decreases cell proliferation and promotes apoptosis in cells with a high level of expression of the HOXA/PBX3 genes, such as MLL-rearranged leukemic cells.

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HXR9

HXR9 Estructura química

No. CAS : 917953-08-3

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HXR9 Related Antibodies

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Descripciòn

HXR9 is a cell-permeable peptide and a competitive antagonist of HOX/PBX interaction. HXR9 antagonizes the interaction between HOX and a second transcrip-tion factor (PBX), which binds to HOX proteins in paralogue groups1 to 8. HXR9 selectively decreases cell proliferation and promotes apoptosis in cells with a high level of expression of the HOXA/PBX3 genes, such as MLL-rearranged leukemic cells[1][2][3].

In Vitro

HXR9 (60μM; 4 hours) blocks the interaction between PBX and HOX[1].
HXR9 (60μM; 2 hours) triggers apoptosis in B16 and primary melanoma cells[1].
HXR9 (60μM; 2 hours) causes specific transcriptional changes[1].
HXR9 (B16 cells) shows antiproliferative activity with an IC50 of 20μM[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

HXR9 Related Antibodies

Western Blot Analysis

Cell Line: murine B16melanoma cells
Concentration: 60 μM
Incubation Time: 4 hours
Result: Blocked the binding of HOXD9 to PBX.

Apoptosis Analysis

Cell Line: B16 cells
Concentration: 60 μM
Incubation Time: 2 hours
Result: A significant proportion of cells were in late phases of apoptosis.

RT-PCR

Cell Line: B16F10cells
Concentration: 60 μM
Incubation Time: 2 hours
Result: Fos, Jun, Dusp1, and Atf1，were allsignificantly up-regulate.
In Vivo

HXR9 (10 mg/kg; i.v. via the tail vein; twice weekly) blocks tumor growth[1].
HXR9 (Initial dose of 100 mg/kg (subsequent dosing of 10 mg/kg twice weekly); Intraperitoneal; twice weekly for 18 days) blocks A549 tumour growth in vivo[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: C57black/6 mice (bearing B16 cells)
Dosage: 10 mg/kg
Administration: I.v. via the tail vein; twice weekly (~30 days)
Result: Tumors showed a significant degree of growth retardation.
Animal Model: Athymic nude mice (bearing A549 cells)
Dosage: Initial dose of 100 mg/kg (subsequent dosing of 10 mg/kg twice weekly)
Administration: Intraperitoneal; twice weekly for 18 days
Result: The tumours of HXR9-treated mice were considerably smaller than those of the control groups.
Peso molecular

2718.21

Fòrmula

C119H193N53O20S
No. CAS
Sequence

Trp-Tyr-Pro-Trp-Met-Lys-Lys-His-His-Arg-Arg-Arg-Arg-Arg-Arg-Arg-Arg-Arg
Sequence Shortening

WYPWMKKHHRRRRRRRRR
Envío

Room temperature in continental US; may vary elsewhere.
Almacenamiento

Please store the product under the recommended conditions in the Certificate of Analysis.
Pureza y Documentación
Referencias
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HXR9 Related Classifications

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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

HXR9917953-08-3HXR 9HXR-9ApoptosisbreastcancerB16 cellscompetitiveantagonistMLLInhibitorinhibitorinhibit

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HY-P3245
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