更新于：2024-11-01

SPTBN1

更新于：2024-11-01

基本信息

别名

Beta-II spectrin、Fodrin beta chain、Spectrin beta chain, non-erythrocytic 1

+ [4]

简介

Fodrin, which seems to be involved in secretion, interacts with calmodulin in a calcium-dependent manner and is thus candidate for the calcium-dependent movement of the cytoskeleton at the membrane. Plays a critical role in central nervous system development and function.

关联

项与 SPTBN1 相关的药物

BF-114

靶点

SPTBN1

作用机制

SPTBN1 inhibitors

在研机构

Bullfrog International LC [+1]

原研机构

Bullfrog International LC

在研适应症

肝细胞癌 [+3]

非在研适应症-

最高研发阶段临床前

首次获批国家/地区-

首次获批日期1800-01-20

100 项与 SPTBN1 相关的临床结果

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100 项与 SPTBN1 相关的转化医学

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0 项与 SPTBN1 相关的专利（医药）

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206

项与 SPTBN1 相关的文献（医药）

2024-10-03·Brain

Sex differences in the pleiotropy of hearing difficulty with imaging-derived phenotypes: a brain-wide investigation

Article

作者: Pathak, Gita A ; Polimanti, Renato ; van Dyck, Christopher H ; Curhan, Sharon G ; Curhan, Gary C ; Koller, Dora ; Mecca, Adam P ; He, Jun ; Cabrera-Mendoza, Brenda ; De Angelis, Flavio

AbstractHearing difficulty (HD) is a major health burden in older adults. While ageing-related changes in the peripheral auditory system play an important role, genetic variation associated with brain structure and function could also be involved in HD predisposition.We analysed a large-scale HD genome-wide association study (GWAS; ntotal = 501 825, 56% females) and GWAS data related to 3935 brain imaging-derived phenotypes (IDPs) assessed in up to 33 224 individuals (52% females) using multiple MRI modalities. To investigate HD pleiotropy with brain structure and function, we conducted genetic correlation, latent causal variable, Mendelian randomization and multivariable generalized linear regression analyses. Additionally, we performed local genetic correlation and multi-trait co-localization analyses to identify genomic regions and loci implicated in the pleiotropic mechanisms shared between HD and brain IDPs.We observed a widespread genetic correlation of HD with 120 IDPs in females, 89 in males and 171 in the sex-combined analysis. The latent causal variable analysis showed that some of these genetic correlations could be due to cause-effect relationships. For seven of them, the causal effects were also confirmed by the Mendelian randomization approach: vessel volume→HD in the sex-combined analysis; hippocampus volume→HD, cerebellum grey matter volume→HD, primary visual cortex volume→HD and HD→fluctuation amplitudes of node 46 in resting-state functional MRI dimensionality 100 in females; global mean thickness→HD and HD→mean orientation dispersion index in superior corona radiata in males. The local genetic correlation analysis identified 13 pleiotropic regions between HD and these seven IDPs. We also observed a co-localization signal for the rs13026575 variant between HD, primary visual cortex volume and SPTBN1 transcriptomic regulation in females.Brain structure and function may have a role in the sex differences in HD predisposition via possible cause-effect relationships and shared regulatory mechanisms.

2024-09-21·Cardiovascular Research

Cardiomyocyte βII spectrin plays a critical role in maintaining cardiac function by regulating mitochondrial respiratory function

Article

作者: Tao, Ling ; Zhang, Shun ; Hu, Guangyu ; Yang, Rongjin ; Zhang, Yunyun ; Qi, Tingting ; Yin, Tao ; Li, Congye ; Chang, Xiaoqian ; Wang, Shan ; Zhang, Xiaomeng ; Ruan, Banjun ; Song, Haifeng ; Zhang, Feiyu ; Xing, Pingping ; Yan, Wenjun ; Wang, Rutao ; Zhao, Huishou ; Zhang, Fuyang

AbstractAimsβII spectrin is a cytoskeletal protein known to be tightly linked to heart development and cardiovascular electrophysiology. However, the roles of βII spectrin in cardiac contractile function and pathological post-myocardial infarction remodelling remain unclear. Here, we investigated whether and how βII spectrin, the most common isoform of non-erythrocytic spectrin in cardiomyocytes, is involved in cardiac contractile function and ischaemia/reperfusion (I/R) injury.Methods and resultsWe observed that the levels of serum βII spectrin breakdown products (βII SBDPs) were significantly increased in patients with acute myocardial infarction (AMI). Concordantly, βII spectrin was degraded into βII SBDPs by calpain in mouse hearts after I/R injury. Using tamoxifen-inducible cardiac-specific βII spectrin knockout mice, we found that deletion of βII spectrin in the adult heart resulted in spontaneous development of cardiac contractile dysfunction, cardiac hypertrophy, and fibrosis at 5 weeks after tamoxifen treatment. Moreover, at 1 week after tamoxifen treatment, although spontaneous cardiac dysfunction in cardiac-specific βII spectrin knockout mice had not developed, deletion of βII spectrin in the heart exacerbated I/R-induced cardiomyocyte death and heart failure. Furthermore, restoration of βII spectrin expression via adenoviral small activating RNA (saRNA) delivery into the heart reduced I/R injury. Immunoprecipitation coupled with mass spectrometry (IP–LC–MS/MS) analyses and functional studies revealed that βII spectrin is indispensable for mitochondrial complex I activity and respiratory function. Mechanistically, βII spectrin promotes translocation of NADH:ubiquinone oxidoreductase 75-kDa Fe-S protein 1 (NDUFS1) from the cytosol to mitochondria by crosslinking with actin filaments (F-actin) to maintain F-actin stability.ConclusionβII spectrin is an essential cytoskeletal element for preserving mitochondrial homeostasis and cardiac function. Defects in βII spectrin exacerbate cardiac I/R injury.

2024-09-01·Journal of Orthopaedic Translation

Emerging role of liver-bone axis in osteoporosis

Review

作者: Peng, Xing ; Xu, Tao ; Gou, Liming ; Ma, Peiqi ; Qin, Jian ; Qin, Xihu ; Li, Ning ; Wang, Yuqi ; Wu, Jing ; Xue, Bin ; Li, Shu ; Gao, Hongliang ; Liang, Hui

BackgroundIncreasing attention to liver-bone crosstalk has spurred interest in targeted interventions for various forms of osteoporosis. Liver injury induced by different liver diseases can cause an imbalance in bone metabolism, indicating a novel regulatory paradigm between the liver and bone. However, the role of the liver-bone axis in both primary and secondary osteoporosis remains inadequately elucidated. Therefore, exploring the exact regulatory mechanisms of the liver-bone axis may offer innovative clinical approaches for treating diseases associated with the liver and bone.MethodsHere, we summarize the latest research on the liver-bone axis by searching the PubMed and Web of Science databases and discuss the possible mechanism of the liver-bone axis in different types of osteoporosis. The literature directly reporting the regulatory role of the liver-bone axis in different types of osteoporosis from the PubMed and Web of Science databases has been included in the discussion of this review (including but not limited to the definition of the liver-bone axis, clinical studies, and basic research). In addition, articles discussing changes in bone metabolism caused by different etiologies of liver injury have also been included in the discussion of this review (including but not limited to clinical studies and basic research).ResultsSeveral endocrine factors (IGF-1, FGF21, hepcidin, vitamin D, osteocalcin, OPN, LCAT, Fetuin-A, PGs, BMP2/9, IL-1/6/17, and TNF-α) and key genes (SIRT2, ABCB4, ALDH2, TFR2, SPTBN1, ZNF687 and SREBP2) might be involved in the regulation of the liver-bone axis. In addition to the classic metabolic pathways involved in inflammation and oxidative stress, iron metabolism, cholesterol metabolism, lipid metabolism and immunometabolism mediated by the liver-bone axis require more research to elucidate the regulatory mechanisms involved in osteoporosis.ConclusionDuring primary and secondary osteoporosis, the liver-bone axis is responsible for liver and bone homeostasis via several hepatokines and osteokines as well as biochemical signaling. Combining multiomics technology and data mining technology could further advance our understanding of the liver-bone axis, providing new clinical strategies for managing liver and bone-related diseases.The translational potential of this article is as follows: Abnormal metabolism in the liver could seriously affect the metabolic imbalance of bone. This review summarizes the indispensable role of several endocrine factors and biochemical signaling pathways involved in the liver-bone axis and emphasizes the important role of liver metabolic homeostasis in the pathogenesis of osteoporosis, which provides novel potential directions for the prevention, diagnosis, and treatment of liver and bone-related diseases.

项与 SPTBN1 相关的新闻（医药）

2024-02-16

·佰傲谷BioValley

IL-27功能机制盘点：肿瘤、自免、肥胖、病毒

IL-27是IL-6家族的成员，在结构上与 IL-12 和 IL-6家族相关。其受体IL-27R通过JAK/STAT信号通路传导。IL-6家族6个促癌成员IL-27R由IL-27Rα和gp130链构成，其中gp130还是IL-35、IL-6、IL-11等细胞因子受体的重要组成部分。此外，gp130和IL-27Rα可以在包括NIH3T3细胞、B细胞、T细胞、NK细胞、DC、单核细胞、肥大细胞、内皮细胞和脂肪细胞等细胞中表达。健康人体中，IL-27可由DC、巨噬细胞和单核细胞等APC通过TLR和IFN-γ依赖的方式产生。IL-27在肿瘤、自免和肥胖炎症作用中均表现出多效性。抗肿瘤已报道的作用机制包括：抑制肿瘤作用促进肿瘤作用诱导产生IFN-γ，提高肿瘤特异性CD8+ T细胞的存活率和分化能力激活NFIL3和T-bet来诱导TIM-3表达激活T细胞和NK细胞介导的肿瘤免疫反应激活STAT1，驱动Treg表达CD39，从而发挥Treg促瘤作用促进造血干细胞扩增和分化为M1表型髓系祖细胞激活STAT1，介导PD-L1表达介导CD8+ T细胞免疫反应诱导癌变B细胞凋亡激活NK细胞，通过Fas/FasL依赖诱导肿瘤细胞凋亡与多肌胞嘧啶结合，通过增强TLR3表达诱导肿瘤细胞凋亡通过诱导产生CXCL10和IFN-γ诱导的单核因子，抑制肿瘤组织新生血管形成。通过下调促血管生成相关基因(如VEGFR1、PTGS1、COx-1和FGFR3)和上调抗血管生成相关基因(如IP-10和TIP3)，阻碍肿瘤新血管生成。IL-27被用来预测乳腺癌生存、免疫检查点表达、免疫细胞浸润。联合PD-1/PD-L1、IDO阻断剂可能是更好的策略。J Immunother Cancer. 2023;11(11):e007530. 抑肥胖理论上，IL-27/IL-27Rα信号能够抵御肥胖和胰岛素抵抗的发展，促进产热和能量消耗。但实际上，IL-27在调节脂肪细胞内炎症反应方面具有双重作用。在体外细胞实验中检测到，在TNF-α或LPS刺激下，前脂肪细胞和脂肪细胞均可分泌IL-27。Acta Physiologica Sinica已知机制包括：抑制肥胖发展促进肥胖发展通过WSX-1信号特异性调控小鼠内脏脂肪组织内Treg数量，进而抑制肥胖的发展。在没有炎症因子干预的情况下，IL-27 刺激前脂肪细胞后，可通过激活ERK和JNK/STAT3途径降低MCP-1、IL-6、TNF-α和COX-2经典炎症基因mRNA的表达，抑制炎症反应。当肥胖已诱发炎症时，IL-27会加重脂肪组织内炎症的进展。在HFD喂养的 IL-27Rα敲除小鼠模型中，脂肪组织中IL-6、TNF-α增加，巨噬细胞浸润增加。直接作用于脂肪细胞，通过p38MAPK/PGC-1α 信号通路诱导产热效应子 UCP1 的表达，促进产热，进而调节肥胖。在体外细胞实验中检测到，在 TNF-α或LPS刺激下，前脂肪细胞和脂肪细胞均可分泌 IL-27。体外实验中，在培养基中加入TNF-α后，IL-27能与TNF-α协同作用，显著增加MCP-1、IL-6、COX-2和TNF-α的表达。同时，成人和儿童的IL-27作用也有差异。有研究显示，成人血清IL-27水平会随着肥胖程度的加重而降低，且在减肥成功后 IL-27 的水平恢复正常。但肥胖儿童血浆中则观察到IL-27水平升高。抗自免以类风湿关节炎(RA)为例：抑制促炎因子分泌致病作用在RA发病早期，IL-27可能通过抑制IL-17和IL-6的分泌，延缓RA的进程。可通过诱导FLS表达粘附分子及释放炎症趋化因子加重RA。可通过与IL-6竞争二者共同的受体亚基gp130而自然拮抗IL-6激活mTOR信号通路，导致外周血中B细胞的失调及功能异常。在RA滑膜中， IL-27能抑制TNF-α或者IL-17A刺激下的FLS产生IL-6。能抑制初始CD4+ T细胞分化为Th17细胞，并通过STAT1依赖性途径抑制Th17细胞的发育，进而减少IL-17的产生。抑制TNF-α诱导产生CCL20，间接阻碍包括Th17细胞在内的CCR6+细胞群的募集，从而减少IL-17分泌。肠道驻留的Treg细胞还会在肠道炎症期间产生IL-27，以限制潜在Th17的分化，从而抑制对肠道细菌的促炎作用，并减轻了自身免疫和自体炎症条件下的肠道损伤。值得注意的是，IL-27和IL-10由不同的Treg细胞组产生。IL-27作为Treg细胞来源的肠道Th17反应抑制因子的具体机制尚不明确，可能是通过STAT1和STAT3受体发出信号。Nat Immunol抗病毒IL-27 可以在PBMC、CD4+ T细胞、MDM及DC等不同免疫细胞中阻碍HIV病毒的复制，其作用机制可能包括：通过激活 CD4+ T细胞中的抗病毒蛋白基因；调节Th1/Th2比率；诱导MDM中 IFIG表达；上调巨噬细胞中的免疫限制因子APOBEC3G及BST-2；下调宿主因子 SPTBN1 及抑制 YB-1 的乙酰化发挥其抑制作用，等等。小结目前进展最快的IL-27单抗应该是Surface的SRF388Coherus的casdozokitug，均已进入2期临床。2024年1月，Coherus在公布了casdozokitug联合疗法治疗局部晚期或转移性肝细胞癌的2期数据，ORR为38%(n=29)，其中3例患者实现完全缓解。本周好文推荐如需转载请联系佰傲谷并在醒目位置注明出处·····

细胞疗法临床研究