相关实验视频
Updated: Jan 18, 2026

10:23
Evaluation of Caspase Activation to Assess Innate Immune Cell Death
Published on: January 20, 2023
3.8K
HCK 调节了NLRP12介导的 PANoptosis 的发生.
Eswar Kumar Nadendla1, Priyanshu Alluri1, Balamurugan Sundaram1
1Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN 38105.
概括
造血细胞激酶 (HCK) 调节NLRP12介导的PANoptosis,这是一个细胞死亡途径,对免疫至关重要. 了解这种相互作用可能为炎症性疾病提供新的治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 分子医学是分子医学.
背景情况:
- 类似NOD的受体 (NLRs) 是先天免疫中关键的细胞质模式识别受体.
- NLRP12调节PANoptosis,这是一个炎症性细胞死亡途径,与各种疾病有关.
- 控制NLRP12激活的精确分子机制尚不清楚.
研究的目的:
- 为了确定NLRP12介导的PANoptosis的新型调节者.
- 阐明NLRP12及其调节体之间的分子相互作用.
- 探索NLRP12相关病理的潜在治疗点.
主要方法:
- 作为一种潜在的NLRP12调节剂,研究了造血细胞激酶 (HCK).
- 利用基因淘汰 (Hck淘汰) 来评估对PANoptosis的影响.
- 进行了计算分析,以预测和验证NLRP12-HCK相互作用地点.
主要成果:
- 在NLRP12-PANoptosome激活时,HCK表达被上调.
- 降低HCK显著抑制了NLRP12介导的PANoptosis.
- 确定了HCK和NLRP12的NACHT-PYD区域之间的假定相互作用接口,通过体外分析证实了这一点.
结论:
- 造血细胞激酶 (HCK) 是NLRP12介导的PANoptosis的一个新型调节剂.
- HCK与NLRP12的相互作用对于诱导PANoptosis至关重要.
- HCK代表了调节炎症和疾病的潜在治疗标.
相关概念视频
The Extrinsic Apoptotic Pathway
8.1K
The extrinsic apoptotic pathway is initiated when extracellular death-inducing signals, such as specific cytokines, activate the death receptors expressed on the cell surface. The immune cells involved in this pathway are natural killer cells (NK cells) and cytotoxic T-lymphocytes. NK cells are critical in innate immune response, while cytotoxic T-lymphocytes are associated with adaptive immune response. These cells recognize specific receptors expressed on the altered cells and activate...
8.1K
NF-κB-dependent Signaling Pathway
9.8K
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
NF-κB-dependent Signaling Mechanism
The...
9.8K
Regulation of the Unfolded Protein Response
2.9K
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...
2.9K
The Intrinsic Apoptotic Pathway
8.3K
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...
8.3K
Caspases
13.7K
Caspase, a family of cysteine proteases, serve as effectors in apoptosis. The ced3 gene in C.elegans was first identified to be involved in apoptosis. This gene encodes the ced-3 caspase that is similar to the interleukin-1-beta converting enzyme or ICE in mammals. In addition to apoptosis, caspases also function in the inflammatory response. Inflammatory caspases are essential in activating pro-inflammatory cytokines that recruit immune cells and block the replication of pathogens inside...
13.7K
Cells of the Innate Immune Response
8.7K
The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
8.7K

