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  4. Serpin B9-IN-1

Serpin B9-IN-1  (Synonyms: BTCA)

Cat. No.: HY-33299 Purity: ≥97.0%
SDS COA Handling Instructions

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Serpin B9-IN-1 (BTCA) is an inhibitor that specifically targets Serpin B9 (SB9); SB9 is a natural inhibitor of granzyme B (GrB) , but may promote the metastasis of lung cancer cells into the bone marrow. SB9-overexpressing cancer cells promote proliferation and metastasis in an immune cell-dependent manner by binding to GrB. Inhibition of SB9 by Serpin B9-IN-1 significantly inhibits immunotherapy of lung cancer bone metastases in the caudal artery (CA) mouse model (LCBM).

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

Serpin B9-IN-1 Chemical Structure

Serpin B9-IN-1 Chemical Structure

CAS No. : 154235-77-5

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 38 In-stock
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10 mM * 1 mL in DMSO USD 38 In-stock
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1 g USD 35 In-stock
5 g USD 65 In-stock
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Based on 1 publication(s) in Google Scholar

Serpin B9-IN-1 Related Antibodies

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  • Biological Activity

  • Purity & Documentation

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Description

Serpin B9-IN-1 (BTCA) is an inhibitor that specifically targets Serpin B9 (SB9); SB9 is a natural inhibitor of granzyme B (GrB) , but may promote the metastasis of lung cancer cells into the bone marrow. SB9-overexpressing cancer cells promote proliferation and metastasis in an immune cell-dependent manner by binding to GrB. Inhibition of SB9 by Serpin B9-IN-1 significantly inhibits immunotherapy of lung cancer bone metastases in the caudal artery (CA) mouse model (LCBM)[1].

IC50 & Target

IC50: Serpin B9
In Vivo

Serpin B9-IN-1 (BTCA) inhibits bone metastasis (BM) in multiple tumor metastasis models. Serpin B9-IN-1 (50 mg/kg/d; ip; 14 d) effectively reduced the survival rate and metastasis proportion of metastatic cancer cells in the mouse bone metastasis model with LLC1-BM3 injected into the tail artery (CA)[1].
Serpin B9-IN-1 (300 μg/d; ip; 14 d) effectively delayed the average time to bone metastasis (BM) in the LLC1-BM3 cell group[1].

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

Animal Model: LLC1-BM3 Bone Metastatic Mouse Model by CA injections[1]
Dosage: 50 mg/kg
Administration: ip; followed after cancer cell injection, injection daily for 14 days
Result: Reduced the survival rate and metastasis proportion of metastatic cancer cells
Animal Model: LLC1-BM3-sr-ctrl Model in Mouse[1]
Dosage: 300 μg
Administration: ip; once daily for 14 days
Result: Delayed the mean time to occurrence of bone metastasis (BM), and lowered the burden of BM in LLC1-BM3-shSB9 cells group.
Molecular Weight

163.13

Formula

C8H5NO3
CAS No.
Appearance

Solid

Color

Light brown to brown

SMILES

O=C(C1=CC=C2N=COC2=C1)O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (613.01 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 6.1301 mL 30.6504 mL 61.3008 mL
5 mM 1.2260 mL 6.1301 mL 12.2602 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. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
=
Concentration
×
Volume
×
Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
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:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: 5 mg/mL (30.65 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 5 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.

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:  50% PEG300    50% Saline

    Solubility: 5 mg/mL (30.65 mM); Clear solution; Need ultrasonic

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

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
% 
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock 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).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Purity & Documentation

Purity: ≥97.0%

SDS (393 KB)

COA (249 KB) HNMR (224 KB)

Handling Instructions (2659 KB)
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. 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
DMSO 1 mM 6.1301 mL 30.6504 mL 61.3008 mL 153.2520 mL
5 mM 1.2260 mL 6.1301 mL 12.2602 mL 30.6504 mL
10 mM 0.6130 mL 3.0650 mL 6.1301 mL 15.3252 mL
15 mM 0.4087 mL 2.0434 mL 4.0867 mL 10.2168 mL
20 mM 0.3065 mL 1.5325 mL 3.0650 mL 7.6626 mL
25 mM 0.2452 mL 1.2260 mL 2.4520 mL 6.1301 mL
30 mM 0.2043 mL 1.0217 mL 2.0434 mL 5.1084 mL
40 mM 0.1533 mL 0.7663 mL 1.5325 mL 3.8313 mL
50 mM 0.1226 mL 0.6130 mL 1.2260 mL 3.0650 mL
60 mM 0.1022 mL 0.5108 mL 1.0217 mL 2.5542 mL
80 mM 0.0766 mL 0.3831 mL 0.7663 mL 1.9157 mL
100 mM 0.0613 mL 0.3065 mL 0.6130 mL 1.5325 mL
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Serpin B9-IN-1 Related Classifications

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:

Serpin B9-IN-1154235-77-5BTCABiochemical Assay ReagentsImmunotherapy for bone metastasis of lung cancerLCBMInhibitorinhibitorinhibit

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