IL 7 Rat

Interleukin-7 Rat Recombinant
Cat. No.
BT7219
Source
Escherichia Coli.
Synonyms
Lymphopoietin 1 (LP-1), pre-B cell factor, IL-7.
Appearance
Sterile Filtered White lyophilized (freeze-dried) powder.
Purity
Greater than 98.0% as determined by SDS-PAGE.
Usage
THE BioTek's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
Shipped with Ice Packs
In Stock

Description

IL 7 Rat Recombinant produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 129 amino acids and having a molecular mass of 15.0kDa.
The IL 7 is purified by proprietary chromatographic techniques.

Product Specs

Introduction
Interleukin-7 (IL-7) is a cytokine crucial for the development of B and T cells. In conjunction with hepatocyte growth factor (HGF), it forms a heterodimer that stimulates the growth of pre-pro-B cells. IL-7 is known to be a crucial cofactor for the V(D)J rearrangement of the T cell receptor beta (TCRB) during the early stages of T cell development. Its production locally by intestinal epithelial and epithelial goblet cells suggests a role in regulating intestinal mucosal lymphocytes. Studies with knockout mice models have indicated that IL-7 is essential for lymphoid cell survival.
Description
Recombinant Rat IL-7, produced in E. coli, is a single, non-glycosylated polypeptide chain comprising 129 amino acids. With a molecular weight of 15.0 kDa, this IL-7 undergoes purification using proprietary chromatographic techniques.
Physical Appearance
White, sterile-filtered, lyophilized (freeze-dried) powder.
Formulation
Lyophilized from a 0.2µm filtered solution concentrated in phosphate-buffered saline (PBS) at pH 7.4.
Solubility
For reconstitution, it is recommended to dissolve the lyophilized IL-7 in sterile 18 MΩ-cm H₂O to a concentration of at least 100µg/ml. This solution can be further diluted in other aqueous solutions.
Stability
Lyophilized IL-7, while stable at room temperature for 3 weeks, is best stored desiccated below -18°C. Upon reconstitution, IL-7 should be stored at 4°C for a period of 2-7 days. For long-term storage, it should be kept at -18°C. Avoid repeated freeze-thaw cycles.
Purity
Determined by SDS-PAGE analysis to be greater than 98.0%.
Biological Activity
The ED50, determined by the dose-dependent stimulation of murine 2E8 cell proliferation, is less than 0.2 ng/ml, which corresponds to a specific activity exceeding 5,000,000 IU/mg.
Synonyms
Lymphopoietin 1 (LP-1), pre-B cell factor, IL-7.
Source
Escherichia Coli.
Amino Acid Sequence
DCHIKDKDGK AFGSVLMISI NQLDKMTGTD SDCPNNEPNF FKKHLCDDTK EAAFLNRAAR KLRQFLKMNI SEEFNDHLLR VSDGTQTLVN CTSKEEKTIK EQKKNDPCFL KRLLREIKTC WNKILKGSI

Product Science Overview

Introduction

Interleukin-7 (IL-7) is a crucial cytokine involved in the regulation of immune responses. It plays a significant role in the development and homeostasis of T cells, B cells, and natural killer (NK) cells. Recombinant IL-7, including rat recombinant IL-7, is widely used in research to study its effects on various immune cells and its potential therapeutic applications.

Discovery and Structure

IL-7 was first discovered in the late 20th century for its growth-promoting effects on B cell progenitors . It is a 25-kDa soluble globular protein produced by various cells, including stromal cells in the bone marrow, thymus, keratinocytes, and enterocytes . The IL-7 receptor (IL-7R) is a heterodimeric complex consisting of the α-chain (CD127) and the common cytokine receptor γ-chain (CD132), which is shared with receptors for other cytokines such as IL-2, IL-4, IL-9, IL-15, and IL-21 .

Biological Functions

IL-7 is essential for the development and survival of T cells in the thymus and the maintenance of peripheral T cells . It also plays a role in B cell maturation and the proliferation and differentiation of memory and naive T cells . IL-7 exerts its biological effects through the activation of the IL-7R, which triggers downstream signaling pathways, including the Janus kinase (JAK)-signal transducer and activator of transcription (STAT) pathway and the phosphatidylinositol 3-kinase (PI3K)-protein kinase B (AKT) pathway .

Recombinant IL-7

Recombinant IL-7, including rat recombinant IL-7, is produced using recombinant DNA technology. It is used in various research applications to study its effects on immune cells and its potential therapeutic uses. Clinical trials of recombinant IL-7 have demonstrated its safety and potent immune reconstitution effects . Recombinant IL-7 has been explored for its potential in cancer immunotherapy, as it can enhance the proliferation and survival of T cells, which are crucial for anti-tumor responses .

Therapeutic Applications

IL-7 has shown promise in various therapeutic applications, particularly in the field of cancer immunotherapy. It has been used to enhance the immune response in patients with cancer by promoting the proliferation and survival of T cells . Additionally, IL-7 has been investigated for its potential to improve immune reconstitution in patients undergoing bone marrow transplantation and those with HIV/AIDS .

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