相关实验视频

Updated: Sep 13, 2025

Identification of Inositol Phosphate or Phosphoinositide Interacting Proteins by Affinity Chromatography Coupled to Western Blot or Mass Spectrometry

Identification of Inositol Phosphate or Phosphoinositide Interacting Proteins by Affinity Chromatography Coupled to Western Blot or Mass Spectrometry

Published on: July 26, 2019

伊诺西-5-酸酶 SHIP1:在急性淋巴细胞白血病中的表达,调节和作用

Patrick Ehm¹, Manfred Jücker¹

¹Institute of Biochemistry and Signal Transduction, Center for Experimental Medicine, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany.

International journal of molecular sciences

|July 29, 2025

概括

高危的儿童急性淋巴细胞白血病 (ALL) 仍然具有挑战性. 这篇评论探讨了SHIP1的情况.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
免疫学免疫学免疫学

背景情况:

高风险的儿童急性淋巴细胞白血病 (ALL) 存在重大治疗挑战.
在ALL中,PI3K/AKT/mTOR通路通常被构成性地激活,从而驱动癌细胞的增殖.
异常的蛋白质表达,特别是酸酶的表达,对白血病细胞中的信号失调.

研究的目的:

审查关于急性淋巴细胞白血病 (ALL) 中因诺-5-酸酶SHIP1的当前知识.
检查SHIP1在各种ALL亚型中的表达及其监管机制.
了解SHIP1在白血病发病过程中的作用,并确定治疗点.

主要方法:

对ALL中SHIP1表达和功能研究的文献综述.
对影响SHIP1基因和蛋白质表达的调节分子的分析.
探索SHIP1在B细胞受体信号传递和瘤发生中的作用.

主要成果:

SHIP1表达异质地分布在不同的ALL亚型中.
SHIP1的差异表达影响B细胞受体信号强度和细胞存活率.
低SHIP1表达可以导致构成性酶信号,促进扩散.

结论:

由于其可变的表达,SHIP1在ALL病原发生过程中起着复杂的作用.
针对SHIP1进行ALL治疗需要仔细考虑亚型特定的表达模式.
对SHIP1调节的进一步研究对于开发有效的白血病治疗是至关重要的.

关键词:

在PI3K/AKT信号传输方面.飞船1号飞船1号急性淋巴细胞白血病急性淋巴细胞白血病伊诺西 5-酸酶的使用

更多相关视频

Intracellular Phosphoflow Cytometry of Acute Myeloid Leukemia Patient-Derived Xenotransplants

Intracellular Phosphoflow Cytometry of Acute Myeloid Leukemia Patient-Derived Xenotransplants

Published on: June 6, 2025

Fluorescence-Based Measurements of Phosphatidylserine/Phosphatidylinositol 4-Phosphate Exchange Between Membranes

Fluorescence-Based Measurements of Phosphatidylserine/Phosphatidylinositol 4-Phosphate Exchange Between Membranes

Published on: March 14, 2021

相关概念视频

Phosphoinositides and PIPs

Phosphoinositides and PIPs

Phosphoinositides are a group of phospholipids containing a glycerol backbone with two fatty acid chains and a phosphate attached to a myoinositol sugar ring. The inositol head group extends into the cytoplasm, where it is modified by adding phosphate groups to form phosphatidylinositol phosphates or PIPs.
Different phosphoinositides are synthesized and recruited on the cytosolic face of the plasma membrane. The localization of specific phosphoinositides concentrated in separate membrane...

The JAK-STAT Signaling Pathway

The JAK-STAT Signaling Pathway

Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...

The Intrinsic Apoptotic Pathway

The Intrinsic Apoptotic Pathway

Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...

Regulation of Nuclear Protein Sorting

Regulation of Nuclear Protein Sorting

Nuclear protein sorting regulates nucleus composition and gene expression, crucial for determining the fate of a eukaryotic cell. Hence, the entry and exit of molecules across the nuclear envelope is a tightly controlled process. Nuclear protein sorting can be inhibited by one of the following ways: 1) masking cargo signal sequences, 2) modifying the nuclear receptor's affinity for cargo, 3) controlling the nuclear pore size, 4) retaining the cargo during its transit to the cytosol or the...

IP3/DAG Signaling Pathway

IP3/DAG Signaling Pathway

Membrane lipids such as phosphatidylinositol (PI) are precursors for several membrane-bound and soluble second messengers. Specific kinases phosphorylate PI and produce phosphorylated inositol phospholipids. One such inositol phospholipids are the phosphatidylinositol-4,5 bisphosphate [PI(4,5)P2], present in the inner half of the lipid bilayer. Upon ligand binding, GPCR stimulates Gq proteins to turn on phospholipase Cꞵ. Activated phospholipase Cꞵ cleaves PI(4,5)P2 and...

Regulation of the Unfolded Protein Response

Regulation of the Unfolded Protein Response

Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...