IFN-gamma 蛋白, Mouse

IFN-gamma Protein is a cytokine belonging to the interferon family, secreted by activated immune cells such as T cells and NK cells. IFN-gamma Protein plays a key role in the immune system, exerting activities including regulating immune responses, antiviral effects, and antitumor effects. IFN-gamma Protein, Mouse is a recombinant IFN-gamma protein expressed by E. coli without any tag^[1][2][3][4].

IFN-gamma 是一种具有免疫调节、抗肿瘤和抗病毒特性的细胞因子。IFN-gamma 可激活巨噬细胞和 NK 细胞、调节 T 细胞分化并参与炎症反应。IFN-gamma 能诱导抗病毒蛋白抑制病毒复制并增强感染细胞的免疫识别，还可通过抑制肿瘤细胞增殖、激活免疫细胞及抑制肿瘤血管生成发挥抗肿瘤作用。IFN-gamma 同时可促进 MHC 分子表达以提升免疫细胞对病原体和异常细胞的识别效率，此外还参与骨髓造血干细胞的分化与成熟调节^[1][2][3][4]。

IFN-gamma 蛋白 (Mouse; 10 ng/mL; 24 h) 在肿瘤细胞 MC38 中可上调 MHC-I 和 PD-L1 表达，与 Nintedanib (HY-50904) 连用效果更好^[5]。

IFN-gamma 蛋白 (Mouse; 10 ng; 鼻内注射; 感染后第 1、3、5 天) 在小鼠初次感染呼吸道合胞病毒 (RSV) 后给药，可显著减轻再感染后的气道高反应性 (AHR) 和炎症^[6]。
IFN-gamma 蛋白 (Mouse; 50000 U/animal; 静脉注射; 3 次/周; 4 周) 在小鼠黑色素瘤肿瘤模型中具有抗肿瘤的活性，且可减少肺转移灶数量^[7]。

1. Determined by its ability to inhibit the proliferation of murine WEHI-279 cells. The expected ED₅₀ is < 1 ng/mL.
2. Measured by its ability to inhibit the proliferation of HT-29 human coloncancer cells. The ED₅₀ for this effect is ≤0.7283 ng/mL, corresponding to a specific activity is ≥1.37×10⁶ Unit/mg.
3.Measured by its binding ability in a functional ELISA. When Recombinant Mouse IFN gamma is used at 10 μg/mL, the concentration of Recombinant Mouse CD119. The ED₅₀ for this effect is <150 ng/mL.

• 
  Measured by its ability to inhibit the proliferation of HT-29 human colon cancer cells. The ED₅₀ for this effect is 0.1399 ng/mL, corresponding to a specific activity is 7.147×10⁶ Unit/mg.

Mouse

E. coli

Tag Free

P01580 (H23-C155)

15978  [NCBI]

Full Length of Mature Protein

HGTVIESLESLNNYFNSSGIDVEEKSLFLDIWRNWQKDGDMKILQSQIISFYLRLFEVLKDNQAISNNISVIESHLITTFFSNSKAKKDAFMSIAKFEVNNPQVQRQAFNELIRVVHQLLPESSLRKRKRSRC

Approximately 12-15 kDa

• 
  Greater than 95% as determined by reducing SDS-PAGE.

无菌粉末

Lyophilized from a 0.2 μm filtered solution of PBS or 4 mM HCl or 20 mM PB, 150 mM NaCl, pH 7.4 or PBS, pH 7.4, 8% trehalose or 4 mM HCl, 4% Mannitol.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Stored at -20°C for 2 years from date of receipt. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.

• [1]. Fam CM, et al. PEGylation improves the pharmacokinetic properties and ability of interferon gamma to inhibit growth of a human tumor xenograft in athymic mice. J Interferon Cytokine Res. 2014 Oct;34(10):759-68.  [Content Brief]

  [2]. Kursunel MA, et al. The untold story of IFN-γ in cancer biology. Cytokine Growth Factor Rev. 2016 Oct;31:73-81.  [Content Brief]

  [3]. Chesler DA, et al. The role of IFN-gamma in immune responses to viral infections of the central nervous system. Cytokine Growth Factor Rev. 2002 Dec;13(6):441-54.  [Content Brief]

  [4]. Goedhart M, et al. Interferon-Gamma Impairs Maintenance and Alters Hematopoietic Support of Bone Marrow Mesenchymal Stromal Cells. Stem Cells Dev. 2018 May 1;27(9):579-589.  [Content Brief]

  [5]. Tu J, et al. Nintedanib enhances the efficacy of PD-L1 blockade by upregulating MHC-I and PD-L1 expression in tumor cells. Theranostics. 2022 Jan 1;12(2):747-766.  [Content Brief]

  [6]. Lee YM, et al. IFN-gamma production during initial infection determines the outcome of reinfection with respiratory syncytial virus. Am J Respir Crit Care Med. 2008 Jan 15;177(2):208-18.  [Content Brief]

  [7]. Talmadge JE, et al. Immunomodulatory and immunotherapeutic properties of recombinant gamma-interferon and recombinant tumor necrosis factor in mice. Cancer Res. 1987 May 15;47(10):2563-70.  [Content Brief]