1. Immunology/Inflammation NF-κB Stem Cell/Wnt
  2. Toll-like Receptor (TLR) RANKL/RANK Wnt β-catenin
  3. Pamidronic acid

Pamidronic acid, the second-generation nitrogen-containing bisphosphonate, is an inhibitor of bone loss. Pamidronic acid significantly inhibits subchondral bone loss in early osteoarthritis by upregulating the expression of OPG in cartilage and subchondral bone, and inhibiting the expression of RANKL and MMP-9 in both tissues, as well as TLR-4 in cartilage, thereby alleviating cartilage degeneration. Additionally, Pamidronic acid can inhibit the signaling of Wnt and β-catenin, and is applicable for research on osteoporosis and osteosarcoma.

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

Pamidronic acid Chemical Structure

Pamidronic acid Chemical Structure

CAS No. : 40391-99-9

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in Water
ready for reconstitution
USD 42 In-stock
Solution
10 mM * 1 mL in Water USD 42 In-stock
Solid
25 mg USD 38 In-stock
50 mg USD 60 In-stock
100 mg USD 96 In-stock
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Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of Pamidronic acid:

Top Publications Citing Use of Products

1 Publications Citing Use of MCE Pamidronic acid

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  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

Pamidronic acid, the second-generation nitrogen-containing bisphosphonate, is an inhibitor of bone loss. Pamidronic acid significantly inhibits subchondral bone loss in early osteoarthritis by upregulating the expression of OPG in cartilage and subchondral bone, and inhibiting the expression of RANKL and MMP-9 in both tissues, as well as TLR-4 in cartilage, thereby alleviating cartilage degeneration. Additionally, Pamidronic acid can inhibit the signaling of Wnt and β-catenin, and is applicable for research on osteoporosis and osteosarcoma[1][2][3][4].

Cellular Effect
Cell Line Type Value Description References
HepG2 IC50
> 200 μM
Compound: Pamidronate
Antimalarial activity against Plasmodium berghei NK65 infected in human HepG2 cells after 48 hrs by RT-PCR
Antimalarial activity against Plasmodium berghei NK65 infected in human HepG2 cells after 48 hrs by RT-PCR
[PMID: 20457823]
MCF7 IC50
141 μM
Compound: 38
Antiproliferative activity against human MCF7 cell line by MTT assay
Antiproliferative activity against human MCF7 cell line by MTT assay
[PMID: 16970405]
MCF7 IC50
22.9 μM
Compound: Pamidronate
Cytotoxicity against human MCF7 cells assessed as cell growth inhibition measured after 24 to 48 hrs by SRB assay
Cytotoxicity against human MCF7 cells assessed as cell growth inhibition measured after 24 to 48 hrs by SRB assay
[PMID: 33132173]
NCI-H460 IC50
71.8 μM
Compound: 38
Antiproliferative activity against human NCI-H460 cell line by MTT assay
Antiproliferative activity against human NCI-H460 cell line by MTT assay
[PMID: 16970405]
SF-268 IC50
408 μM
Compound: 38
Antiproliferative activity against human SF-268 cell line by MTT assay
Antiproliferative activity against human SF-268 cell line by MTT assay
[PMID: 16970405]
T-cell IC50
62 μM
Compound: 34
Inhibitory activity, for stimulation of TNF-alpha release in gamma-delta T cells, using individual observed maximum TNF-alpha release
Inhibitory activity, for stimulation of TNF-alpha release in gamma-delta T cells, using individual observed maximum TNF-alpha release
[PMID: 14711309]
T-cell IC50
941 μM
Compound: 34
Inhibitory activity, for stimulation of TNF-alpha release in gamma-delta T cells, using a constrained maximum TNF-alpha release of 2700 pg/mL
Inhibitory activity, for stimulation of TNF-alpha release in gamma-delta T cells, using a constrained maximum TNF-alpha release of 2700 pg/mL
[PMID: 14711309]
Clinical Trial
Molecular Weight

235.07

Formula

C3H11NO7P2

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

OC(P(O)(O)=O)(P(O)(O)=O)CCN

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

-20°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

Solvent & Solubility
In Vitro: 

H2O : 5 mg/mL (21.27 mM; ultrasonic and warming and heat to 80°C)

DMSO : < 1 mg/mL (insoluble or slightly soluble)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 4.2541 mL 21.2703 mL 42.5405 mL
5 mM 0.8508 mL 4.2541 mL 8.5081 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
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Volume
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Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

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Volume (start)

V1

=
Concentration (final)

C2

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Volume (final)

V2

In Vivo:

For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  PBS

    Solubility: 2 mg/mL (8.51 mM); Clear solution; Need ultrasonic

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

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g

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(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Calculation results:
Working solution concentration: mg/mL
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).
Purity & Documentation

Purity: 98.15%

References
Cell Assay
[1]

Cell counts and cell viability assays are performed in cultures of osteosarcoma cells (POS, HMPOS, and COS31 cell lines) and fibroblasts after 24, 48, and 72 hours of incubation with pamidronate at concentrations of 0.001 to 1000 microM or with no drug (control treatment). Percentage viability is determined in cell samples for each concentration of pamidronate and each incubation time. A DNA fragmentation analysis is performed to assess bisphosphonate-induced apoptosis[1].

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

Animal Administration
[3]

Rabbits: The rabbits are randomly divided into four groups. Sham-operated with vehicle treatment, OA induced by ACLT with vehicle treatment, OA-induced ACLT treated with short-term pamidronic acid treatment after ACLT, and ACLT treated with long-term PAM treatment. PAM is injected at the 4th week after ACLT in PAM-S and PAM-L groups, and followed by once monthly ear vein injections at a dosage of 3 mg/kg body weight. In the other groups, only saline infusions of equal volumes are administered. 10 animals are humanely sacrificed at both 2 and 10 weeks after pamidronic acid treatment. In the ACLT and Sham groups, five animals are sacrificed at 2, 4, 6, and 14 weeks after model establishment[3].

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

References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
H2O 1 mM 4.2541 mL 21.2703 mL 42.5405 mL 106.3513 mL
5 mM 0.8508 mL 4.2541 mL 8.5081 mL 21.2703 mL
10 mM 0.4254 mL 2.1270 mL 4.2541 mL 10.6351 mL
15 mM 0.2836 mL 1.4180 mL 2.8360 mL 7.0901 mL
20 mM 0.2127 mL 1.0635 mL 2.1270 mL 5.3176 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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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.

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Pamidronic acid
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