更新于：2024-05-01

PICK1

protein interacting with PRKCA 1

更新于：2024-05-01

基本信息

别名

dJ1039K5、MGC15204、PICK1

+ [5]

简介

Probable adapter protein that bind to and organize the subcellular localization of a variety of membrane proteins containing some PDZ recognition sequence. Involved in the clustering of various receptors, possibly by acting at the receptor internalization level. Plays a role in synaptic plasticity by regulating the trafficking and internalization of AMPA receptors. May be regulated upon PRKCA activation. May regulate ASIC1/ASIC3 channel. Regulates actin polymerization by inhibiting the actin-nucleating activity of the Arp2/3 complex; the function is competitive with nucleation promoting factors and is linked to neuronal morphology regulation and AMPA receptor (AMPAR) endocytosis. Via interaction with the Arp2/3 complex involved in regulation of synaptic plasicity of excitatory synapses and required for spine shrinkage during long-term depression (LTD). Involved in regulation of astrocyte morphology, antagonistic to Arp2/3 complex activator WASL/N-WASP function.

关联

100 项与 PICK1 相关的临床结果

登录后查看更多信息

100 项与 PICK1 相关的转化医学

登录后查看更多信息

0 项与 PICK1 相关的专利（医药）

登录后查看更多信息

372

项与 PICK1 相关的文献（医药）

2023-11-25·Reproductive biology and endocrinology : RB&E

Multi-omics study identifies that PICK1 deficiency causes male infertility by inhibiting vesicle trafficking in Sertoli cells.

Article

作者: Jing Jin ; Kaiqiang Li ; Yaoqiang Du ; Fang Gao ; Zhen Wang ; Weixing Li

BACKGROUND:

Infertility affects approximately 10-15% of reproductive-age men worldwide, and genetic causes play a role in one-third of cases. As a Bin-Amphiphysin-Rvs (BAR) domain protein, protein interacting with C-kinase 1 (PICK1) deficiency could lead to impairment of acrosome maturation. However, its effects on auxiliary germ cells such as Sertoli cells are unknown.

PURPOSE:

The present work was aimed to use multi-omics analysis to research the effects of PICK1 deficiency on Sertoli cells and to identify effective biomarkers to distinguish fertile males from infertile males caused by PICK1 deficiency.

METHODS:

Whole-exome sequencing (WES) was performed on 20 infertility patients with oligozoospermia to identify pathogenic PICK1 mutations. Multi-omics analysis of a PICK1 knockout (KO) mouse model was utilized to identify pathogenic mechanism. Animal and cell function experiments of Sertoli cell-specific PICK1 KO mouse were performed to verify the functional impairment of Sertoli cells.

RESULTS:

Two loss-of-function deletion mutations c.358delA and c.364delA in PICK1 resulting in transcription loss of BAR functional domain were identified in infertility patients with a specific decrease in serum inhibin B, indicating functional impairment of Sertoli cells. Multi-omics analysis of PICK1 KO mouse illustrated that targeted genes of differentially expressed microRNAs and mRNAs are significantly enriched in the negative regulatory role in the vesicle trafficking pathway, while metabolomics analysis showed that the metabolism of amino acids, lipids, cofactors, vitamins, and endocrine factors changed. The phenotype of PICK1 KO mouse showed a reduction in testis volume, a decreased number of mature spermatozoa and impaired secretory function of Sertoli cells. In vitro experiments confirmed that the expression of growth factors secreted by Sertoli cells in PICK1 conditional KO mouse such as Bone morphogenetic protein 4 (BMP4) and Fibroblast growth factor 2 (FGF2) were decreased.

CONCLUSIONS:

Our study attributed male infertility caused by PICK1 deficiency to impaired vesicle-related secretory function of Sertoli cells and identified a variety of significant candidate biomarkers for male infertility induced by PICK1 deficiency.

2023-08-25·Scientific reports

PDI augments kainic acid-induced seizure activity and neuronal death by inhibiting PP2A-GluA2-PICK1-mediated AMPA receptor internalization in the mouse hippocampus.

Article

作者: Duk-Shin Lee ; Tae-Hyun Kim ; Hana Park ; Ji-Eun Kim

Protein disulfide isomerase (PDI) is a redox-active enzyme and also serves as a nitric oxide donor causing S-nitrosylation of cysteine residues in various proteins. Although PDI knockdown reduces α-amino-3-hydroxy-5-methylisoxazole-4-propionic acid receptor (AMPAR)-mediated neuronal activity, the underlying mechanisms are largely unknown. In the present study, we found that under physiological condition PDI knockdown increased CaMKII activity (phosphorylation) in the mouse hippocampus. However, PDI siRNA inhibited protein phosphatase (PP) 2A-mediated GluA2 S880 dephosphorylation by increasing PP2A oxidation, independent of S-nitrosylation. PDI siRNA also enhanced glutamate ionotropic receptor AMPA type subunit 1 (GluA1) S831 and GluA2 S880, but not GluA1 S845 and GluA2 Y869/Y873/Y876 phosphorylations, concomitant with the enhanced protein interacting with C kinase 1 (PICK1)-mediated AMPAR internalization. Furthermore, PDI knockdown attenuated seizure activity and neuronal damage in response to kainic acid (a non-desensitizing agonist of AMPAR). Therefore, these findings suggest that PDI may regulate surface AMPAR expression through PP2A-GluA2-PICK1 signaling pathway, and that PDI may be one of the therapeutic targets for epilepsy via AMPAR internalization without altering basal neurotransmission.

2023-08-02·Hormones and behavior

Circulating ovarian hormones interact with protein interacting with C kinase (PICK1) within the medial prefrontal cortex to influence cocaine seeking in female mice.

Article

作者: Elizabeth A Birmingham ; Megan M Wickens ; Julia M Kirkland ; Melissa C Knouse ; Anna G McGrath ; Lisa A Briand

Protein interacting with C kinase 1 (PICK1) is an AMPA receptor binding protein that works in conjunction with glutamate receptor interacting protein (GRIP) to balance the number of GluA2-containing AMPARs in the synapse. In male mice, disrupting PICK1 in the medial prefrontal cortex (mPFC) leads to a decrease in cue-induced cocaine seeking and disrupting GRIP in the mPFC has the opposing effect, consistent with other evidence that removal of GluA2-containing AMPARs potentiates reinstatement. However, PICK1 does not seem to play the same role in female mice, as knockdown of either PICK1 or GRIP in the mPFC leads to similar increases in cue-induced cocaine seeking. These previous findings indicate that the role of PICK1 in the prefrontal cortex is sex specific. The goal of the current study was to examine whether ovarian hormones contribute to the effect of prefrontal PICK1 knockdown on reinstatement of cocaine seeking. While we replicated the increased cue-induced cocaine seeking in prefrontal PICK1 knockdown sham mice, we did not see any difference between the GFP control mice and PICK1 knockdowns following ovariectomy. However, this effect was driven primarily by an increase in cocaine seeking in ovariectomized GFP control mice while there was no effect ovariectomy in PICK1 knockdown mice. Taken together, these findings suggest that circulating ovarian hormones interact with the effects of PICK1 on cue-induced reinstatement.

项与 PICK1 相关的新闻（医药）

2024-03-18

·生物制药小编

停药仍能持续减肥

随着3月9日司美格鲁肽得到FDA批准用于辅助预防重大心血管事件，司美格鲁肽等GLP-1类减肥药物的跨界效果也得到了监管机构的认可。然而，这类减肥药物目前现阶段的数据表明，这些药物虽然有行之有效，但一旦停药反弹幅度也很大，且反弹过程中可能导致心血管方面的益处也可能因为反弹而恢复原样。既然减肥药能够跨界到心血管领域，那么其他领域的药物能不能跨界到肥胖呢？不仅可以，即便停药后，依然可以做到持续减肥。近日（3月1日），来自丹麦哥本哈根大学的诺和诺德基金会基础代谢研究中心在Science子刊Science Advances上发表了一篇论文。研究人员采用了之前只在神经病性疼痛和中风中进行开发的PSD-95和PICK1靶点，并试图用新方法将其运用在肥胖症上。NMDA受体和AMPA受体的崭新开发方式在过去的十年中，全基因组关联研究（GWAS）揭示了许多可能导致肥胖发病的生物学途径。在这些途径中，不少基因直接在大脑内富集/表达，在肥胖的遗传研究中，与α-氨基-3-羟基-5-甲基-4-异唑丙酸(AMPA)和n -甲基-d-天冬氨酸(NMDA)受体相关的谷氨酸能信号传导和突触后可塑性相关的基因尤其丰富，这表明谷氨酸能神经递质系统在调节能量平衡的稳态机制在肥胖症中发挥了重要作用。但问题在于，这两条途径的受体在整个中枢神经系统中普遍表达，强行去开发靶向药物很可能造成神经损伤。上游途径惹不起，那就只能从下游着手。因此，科学家们就试图去探索细胞内受体蛋白复合物的靶向，因为靶向蛋白质复合物就能够实现突触后受体信号的精确干扰。而AMPA和NMDA受体都会直接与细胞内支架蛋白相互作用，这些细胞内支架蛋白能够参与膜上谷氨酸受体的锚定和运输。支架蛋白中的许多又含有PDZ结构域。PDZ结构域（PDZ domain）是一种在多种蛋白质中发现的结构元件，它是蛋白质-蛋白质相互作用的重要模块。PDZ结构域得名于最初发现它的三种蛋白质：Postsynaptic density protein-95 (PSD-95)、Dlg1 ( discs large homolog 1) 和 Zonula occludens-1 (ZO-1)，每个蛋白质的名字首字母组成了“PDZ”。也就是说只要靶向含有PDZ结构域的蛋白质，就能够解决不能直接靶向受体的问题了，而这种含有PDZ结构域的支架蛋白就成为了众多中枢神经系统疾病的理想靶点。而此次该靶点就在肥胖症上得到开发。遗传筛选获得理想蛋白质为了确定肥胖治疗的药物靶点，研究人员寻找了至少由一个PDZ结构域组成的蛋白质，这些蛋白质已知参与谷氨酸能AMPA或NMDA受体的蛋白质相互作用。他们确定了六种符合这些标准的蛋白质:谷氨酸受体相互作用蛋白1（grip 1）、GRIP2、与C激酶1相互作用的蛋白（PICK1）、PSD-95。而下一轮筛选由遗传相关性展开，他们采用了UK Biobank（英国生物银行）的数据，并通过调查转录起始位点周围500 kb区域内的所有常染色体变异与体重指数（身体质量指数）和体脂百分比（BF%）的相关性，最终筛选获得了PSD-95和PICK1这两项与肥胖呈现出正相关的靶点。PSD-95抑制剂可降低小鼠体重其实之前就有PSD-95抑制剂NA-1差点成功上市，但临门一脚却因为主要临床不达终点而功败垂成。当时的适应症是心血管疾病。现在，丹麦的研究人员开发了一种二聚肽抑制剂UCCB 01-147，数据对照来看，与NA-1相比，UCCB 01-147以同等摩尔剂量更显著地降低了体重和食物摄入量，且这一降低并非由脱靶效应驱动。PICK1抑制剂可降低小鼠体重同样，研究人员开发了另外一种PICK1二聚肽抑制剂的脂质化变体mPD5，该抑制剂能够干扰AMPA受体的PICK1依赖性磷酸化。同样做到了以剂量依赖性地降低肥胖小鼠的体重。为了证明mPD5是通过PICK1抑制来实现肥胖降低的，因此研究人员用PICK1敲除小鼠进行对照。在高脂饮食喂养的PICK1敲除小鼠中，研究人员发现在DIO野生型同窝出生小鼠中观察到的mPD5降低体重和食物摄入量的作用在PICK1基因敲除小鼠中完全消失，这表明mPD5抑制食欲和减轻体重的作用确实是通过PICK1介导的。抑制剂的持久性对谷氨酸受体的药物干扰可以通过减少兴奋性神经传递、促进神经回路变化并可能引发持续的疾病缓解益处来诱导持久的神经可塑性效应。为了评估mPD5和UCCB01-147治疗的长期代谢效果，研究人员进行了为期13天的治疗研究，然后进行了为期29天的清除/体重恢复期。在这项研究中，两种化合物在13天的治疗期内都获得了显著的减肥益处。与先前的研究一致，两种化合物的体重减轻仅反映在体脂质量的减少上。值得注意的是，尽管两种PDZ结构域干扰化合物的半衰期在几分钟到几小时的范围内，体重减轻在治疗停止后持续约10天。治疗停止四周后，用mPD5治疗的小鼠仍然没有赶上溶媒对照组的体重，这表明PICK1干扰可能对体重有持久影响。在一项后续研究中，评估了mPD5对GLP-1受体激动剂利拉鲁肽的持续减肥效果。治疗停止后，mPD5治疗的小鼠在3天内体重持续下降，体重下降持续约8天。相反，利拉鲁肽治疗的小鼠在治疗停止后立即开始体重恢复，恢复速度比mPD5治疗的小鼠更快。到第35天，利拉鲁肽治疗的小鼠等于溶媒对照组的体重，而mPD5治疗的小鼠则保持显著低于溶媒对照组的体重。为了解决与利拉鲁肽治疗小鼠和mPD5治疗小鼠之间体重减轻差异相关的潜在混杂因素，研究人员还额外进行了一项研究，他们将mPD5治疗小鼠与一组进行热量限制以实现等效体重减轻的小鼠进行了比较。在停止热量限制和mPD5治疗后，各组的体重恢复立即出现差异。与之前的观察结果一致，mPD5治疗的小鼠在停药后体重恢复缓慢，但在恢复期第16天，两组小鼠已经的体重恢复程度已经达到一致。体重恢复的最初分离反映在热量限制组中强烈的反调节性摄食过度。相比之下，mPD5组恢复了与对照组小鼠相同的卡路里摄入量，没有表现出补偿性行为。这样的试验可能表明，假如一名肥胖症患者得到mPD5治疗后，体重减轻，但是停药后，即便他能够获得充足的饮食，也可能不会表征出补偿性暴饮暴食的情况。总结实际上，近年来，关于PSD-95靶点在如阿尔兹海默症，抑郁症等其他领域也展现出了一定可适用性，这也表明PSD-95抑制剂的潜在跨界应用，而PICK1抑制剂展现出了具有一定持久性治疗效果，考虑到目前是诺和诺德在主要资助这两款靶点的开发，可能引起一部分企业效仿。参考来源：https://www-science-org.libproxy1.nus.edu.sg/doi/10.1126/sciadv.adg2636