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Increased ER stress by depletion of PDIA6 impairs primary ciliogenesis and enhances sensitivity to ferroptosis in kidney cells. 通过消耗 PDIA6 增加ER应激会损害肾细胞的初级纤毛生成并提高其对铁凋亡的敏感性。
IF 2.9 3区 生物学
BMB Reports Pub Date : 2024-10-01
Joon Bum Kim, Hyejin Hyung, Ji-Eun Bae, Soyoung Jang, Na Yeon Park, Doo Sin Jo, Yong Hwan Kim, Dong Kyu Choi, Hong-Yeoul Ryu, Hyun-Shik Lee, Zae Young Ryoo, Dong-Hyung Cho
{"title":"Increased ER stress by depletion of PDIA6 impairs primary ciliogenesis and enhances sensitivity to ferroptosis in kidney cells.","authors":"Joon Bum Kim, Hyejin Hyung, Ji-Eun Bae, Soyoung Jang, Na Yeon Park, Doo Sin Jo, Yong Hwan Kim, Dong Kyu Choi, Hong-Yeoul Ryu, Hyun-Shik Lee, Zae Young Ryoo, Dong-Hyung Cho","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Primary cilia are crucial for cellular balance, serving as sensors for external conditions. Nephronophthisis and related ciliopathies, which are hereditary and degenerative, stem from genetic mutations in cilia-related genes. However, the precise mechanisms of these conditions are still not fully understood. Our research demonstrates that downregulating PDIA6, leading to cilia removal, makes cells more sensitive to ferroptotic death caused by endoplasmic reticulum (ER) stress. The reduction of PDIA6 intensifies the ER stress response, while also impairing the regulation of primary cilia in various cell types. PDIA6 loss worsens ER stress, hastening ferroptotic death in proximal tubule epithelial cells, HK2 cells. Counteracting this ER stress can mitigate PDIA6 depletion effects, restoring both the number and length of cilia. Moreover, preventing ferroptosis corrects the disrupted primary ciliogenesis due to PDIA6 depletion in HK2 cells. Our findings emphasize the role of PDIA6 in primary ciliogenesis, and suggest its absence enhances ER stress and ferroptosis. These insights offer new therapeutic avenues for treating nephronophthisis and similar ciliopathies. [BMB Reports 2024; 57(10): 453-458].</p>","PeriodicalId":9010,"journal":{"name":"BMB Reports","volume":" ","pages":"453-458"},"PeriodicalIF":2.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11524824/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141750980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The heterotrimeric kinesin-2 family member KIF3A directly binds to disabled-1 (Dab1). 异三聚驱动蛋白-2 家族成员 KIF3A 可直接与残疾-1(Dab1)结合。
IF 2.9 3区 生物学
BMB Reports Pub Date : 2024-10-01
Myoung Hun Kim, Young Joo Jeong, Sang-Hwa Urm, Dae-Hyun Seog
{"title":"The heterotrimeric kinesin-2 family member KIF3A directly binds to disabled-1 (Dab1).","authors":"Myoung Hun Kim, Young Joo Jeong, Sang-Hwa Urm, Dae-Hyun Seog","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The heterotrimeric molecular motor kinesin-2 is involved in the microtubule-dependent transport of intracellular cargo. It consists of two distinct motor subunits (KIF3A, and KIF3B) and a non-motor subunit, kinesin-associated protein 3 (KAP3). The cargo-binding domain (CBD) at the carboxyl (C)-terminus of KIF3s plays an important role in the interaction with several different binding proteins. To identify the binding proteins for heterotrimeric kinesin-2, we performed a yeast two-hybrid screen and found a new interaction with Disables-1 (Dab1), the intracellular adaptor protein of reelin receptors. Dab1 bound to the CBD of KIF3A, but did not interact with the C-terminal domain of KIF3B, KIF5B, KIF17 or KAP3. The phosphotyrosine binding (PTB) domain-containing region of Dab1 is essential for the interaction with KIF3A. KIF3A interacted with GST-Dab1, and GST-CaMKIIα, but did not interact with GST-apolipoprotein E receptor 2 (ApoER2)-C or with GST alone. When co-expressed in HEK-293T cells, Dab1 co-precipitated with KIF3A, but not with KIF5B. Dab1 and KIF3A were co-localized in cultured cells. We also identified deduced cell surface expression of ApoER2 in KIF3A dominant-negative cells. These results suggest that the KIF3A plays a role in the intracellular trafficking of ApoER2 to the cell surface. [BMB Reports 2024; 57(10): 447-452].</p>","PeriodicalId":9010,"journal":{"name":"BMB Reports","volume":" ","pages":"447-452"},"PeriodicalIF":2.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11524828/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141449628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Inhibition of P2RX7 contributes to cytotoxicity by suppression of glycolysis and AKT activation in human hepatocellular carcinoma. 抑制 P2RX7 可抑制糖酵解和 AKT 在人肝细胞癌中的激活,从而增加细胞毒性。
IF 2.9 3区 生物学
BMB Reports Pub Date : 2024-10-01
Jae Kook Yang, Junhyung Kim, Young Hyeon Ahn, Sang Ho Bae, Moo-Jun Baek, Sae Hwan Lee, Jong-Seok Moon
{"title":"Inhibition of P2RX7 contributes to cytotoxicity by suppression of glycolysis and AKT activation in human hepatocellular carcinoma.","authors":"Jae Kook Yang, Junhyung Kim, Young Hyeon Ahn, Sang Ho Bae, Moo-Jun Baek, Sae Hwan Lee, Jong-Seok Moon","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Hepatocellular carcinoma (HCC) is the most common form of primary liver cancer. HCC occurs people with chronic liver diseases. The purinergic receptor P2X 7 (P2RX7) is involved in tumor proliferation and growth. Also, P2RX7 is associated with tumor invasion and metastatic dissemination. High glucose utilization is important for the survival of various types of tumors. However, the role of P2RX7 in glucose metabolism and cellular survival of HCC remains unclear. Here, our results show that the gene and protein levels of P2RX7 were elevated in tumor cells of patients with HCC. The pharmacological inhibition of P2RX7 by A-804598, a selective P2RX7 antagonist, and genetic inhibition by P2RX7 knockdown suppressed the glycolytic activity by reduction of hexokinase 2 (HK2), a key enzyme of the glycolysis pathway, in human HCC cells. Also, both A-804598 treatment and P2RX7 knockdown induced cytotoxicity via inhibition of AKT activation which is critical for tumor cell survival in human HCC cells. Moreover, A-804598 treatment and P2RX7 knockdown increased cytotoxicity and caspase-3 activation in human HCC cells. These results suggest that inhibition of P2RX7 contributes to cytotoxicity by suppression of glycolysis and AKT activation in human HCC. [BMB Reports 2024; 57(10): 459-464].</p>","PeriodicalId":9010,"journal":{"name":"BMB Reports","volume":" ","pages":"459-464"},"PeriodicalIF":2.9,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11524825/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142104039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Matricellular proteins in immunometabolism and tissue homeostasis. 免疫代谢和组织稳态中的母细胞蛋白
IF 2.9 3区 生物学
BMB Reports Pub Date : 2024-09-01
Kyoungjun Eun, Ah Young Kim, Seungjin Ryu
{"title":"Matricellular proteins in immunometabolism and tissue homeostasis.","authors":"Kyoungjun Eun, Ah Young Kim, Seungjin Ryu","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Matricellular proteins are integral non-structural components of the extracellular matrix. They serve as essential modulators of immunometabolism and tissue homeostasis, playing critical roles in physiological and pathological conditions. These extracellular matrix proteins including thrombospondins, osteopontin, tenascins, the secreted protein acidic and rich in cysteine (SPARC) family, the Cyr61, CTGF, NOV (CCN) family, and fibulins have multi-faceted functions in regulating immune cell functions, metabolic pathways, and tissue homeostasis. They are involved in immune-metabolic regulation and influence processes such as insulin signaling, adipogenesis, lipid metabolism, and immune cell function, playing significant roles in metabolic disorders such as obesity and diabetes. Furthermore, their modulation of tissue homeostasis processes including cellular adhesion, differentiation, migration, repair, and regeneration is instrumental for maintaining tissue integrity and function. The importance of these proteins in maintaining physiological equilibrium is underscored by the fact that alterations in their expression or function often coincide with disease manifestation. This review contributes to our growing understanding of these proteins, their mechanisms, and their potential therapeutic applications. [BMB Reports 2024; 57(9): 400-416].</p>","PeriodicalId":9010,"journal":{"name":"BMB Reports","volume":" ","pages":"400-416"},"PeriodicalIF":2.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11444987/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141449589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nuclear structures and their emerging roles in cell differentiation and development. 核结构及其在细胞分化和发育中的新作用
IF 2.9 3区 生物学
BMB Reports Pub Date : 2024-09-01
Hye Ji Cha
{"title":"Nuclear structures and their emerging roles in cell differentiation and development.","authors":"Hye Ji Cha","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The nucleus, a highly organized and dynamic organelle, plays a crucial role in regulating cellular processes. During cell differentiation, profound changes occur in gene expression, chromatin organization, and nuclear morphology. This review explores the intricate relationship between nuclear architecture and cellular function, focusing on the roles of the nuclear lamina, nuclear pore complexes (NPCs), sub-nuclear bodies, and the nuclear scaffold. These components collectively maintain nuclear integrity, organize chromatin, and interact with key regulatory factors. The dynamic remodeling of chromatin, its interactions with nuclear structures, and epigenetic modifications work in concert to modulate gene accessibility and ensure precise spatiotemporal control of gene expression. The nuclear lamina stabilizes nuclear shape and is associated with inactive chromatin regions, while NPCs facilitate selective transport. Sub-nuclear bodies contribute to genome organization and gene regulation, often by influencing RNA processing. The nuclear scaffold provides structural support, impacting 3D genome organization, which is crucial for proper gene expression during differentiation. This review underscores the significance of nuclear architecture in regulating gene expression and guiding cell differentiation. Further investigation into nuclear structure and 3D genome organization will deepen our understanding of the mechanisms governing cell fate determination. [BMB Reports 2024; 57(9): 381-387].</p>","PeriodicalId":9010,"journal":{"name":"BMB Reports","volume":" ","pages":"381-387"},"PeriodicalIF":2.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11444988/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142104040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of a highly effective recombinant protein from human collagen type III Alpha 1 (COL3A1) to enhance human skin cell functionality. 开发一种高效的人胶原蛋白 III 型α1(COL3A1)重组蛋白,以增强人皮肤细胞的功能。
IF 2.9 3区 生物学
BMB Reports Pub Date : 2024-09-01
Young Un Kim, HyunJoon Gi, Eun Kyung Jeong, Seokwon Han, Woo-Young Seo, Young Jun Kim, Sang Bae Lee, KyeongJin Kim
{"title":"Development of a highly effective recombinant protein from human collagen type III Alpha 1 (COL3A1) to enhance human skin cell functionality.","authors":"Young Un Kim, HyunJoon Gi, Eun Kyung Jeong, Seokwon Han, Woo-Young Seo, Young Jun Kim, Sang Bae Lee, KyeongJin Kim","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Collagen type III, a member of the fibrillar collagen group, is a major component of the extracellular matrix in various internal organs, the vascular systems, and skin. It is essential to maintain the structural integrity and functionality of these tissues, and plays a significant role in wound healing, often found alongside collagen type I. Despite being the second most abundant collagen in human tissues after type I, its biological functions on various skin properties have not been thoroughly studied. In this study, we have isolated and developed an effective recombinant protein derived from human collagen type III alpha 1 chain (hCOL3A1). Our findings demonstrate that the recombinant proteins hCOL3A1-THR-M1 and M4 stimulate cell proliferation and collagen biosynthesis in human dermal fibroblasts (HDFs), and enhance wound healing. Notably, hCOL3A1-THR- M1 (referred to as HUCOLLATIN3) specifically penetrates both the epidermal and dermal layers in a full-thickness skin model. These results collectively indicate that hCOL3A1-THR-M1 holds promise as a potential biomaterial to prevent skin aging. [BMB Reports 2024; 57(9): 424-429].</p>","PeriodicalId":9010,"journal":{"name":"BMB Reports","volume":" ","pages":"424-429"},"PeriodicalIF":2.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11444990/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142103979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Metabolic reprogramming of the tumor microenvironment to enhance immunotherapy. 对肿瘤微环境进行代谢重编程,以增强免疫疗法。
IF 2.9 3区 生物学
BMB Reports Pub Date : 2024-09-01
Seon Ah Lim
{"title":"Metabolic reprogramming of the tumor microenvironment to enhance immunotherapy.","authors":"Seon Ah Lim","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Immunotherapy represents a promising treatment strategy for targeting various tumor types. However, the overall response rate is low due to the tumor microenvironment (TME). In the TME, numerous distinct factors actively induce immunosuppression, restricting the efficacy of anticancer immune reactions. Recently, metabolic reprogramming of tumors has been recognized for its role in modulating the tumor microenvironment to enhance immune cell responses in the TME. Furthermore, recent elucidations underscore the critical role of metabolic limitations imposed by the tumor microenvironment on the effectiveness of antitumor immune cells, guiding the development of novel immunotherapeutic approaches. Hence, achieving a comprehensive understanding of the metabolic requirements of both cancer and immune cells within the TME is pivotal. This insight not only aids in acknowledging the current limitations of clinical practices but also significantly shapes the trajectory of future research endeavors in the domain of cancer immunotherapy. In addition, therapeutic interventions targeting metabolic limitations have exhibited promising potential as combinatory treatments across diverse cancer types. In this review, we first discuss the metabolic barriers in the TME. Second, we explore how the immune response is regulated by metabolites. Finally, we will review the current strategy for targeting metabolism to not simply inhibit tumor growth but also enhance antitumor immune responses. Thus, we could suggest potent combination therapy for improving immunotherapy with metabolic inhibitors. [BMB Reports 2024; 57(9): 388-399].</p>","PeriodicalId":9010,"journal":{"name":"BMB Reports","volume":" ","pages":"388-399"},"PeriodicalIF":2.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11444991/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141449590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Glucose-dependent insulinotropic polypeptide (GIP) alleviates ferroptosis in aging-induced brain damage through the Epac/Rap1 signaling pathway. 葡萄糖依赖性胰岛素多肽(GIP)通过Epac/Rap1信号通路缓解衰老诱导的脑损伤中的铁蛋白沉积。
IF 2.9 3区 生物学
BMB Reports Pub Date : 2024-09-01
Jiwon Ko, Soyoung Jang, Soyeon Jang, Song Park, Junkoo Yi, Dong Kyu Choi, Seonggon Kim, Myoung Ok Kim, Su-Geun Lim, Zae Young Ryoo
{"title":"Glucose-dependent insulinotropic polypeptide (GIP) alleviates ferroptosis in aging-induced brain damage through the Epac/Rap1 signaling pathway.","authors":"Jiwon Ko, Soyoung Jang, Soyeon Jang, Song Park, Junkoo Yi, Dong Kyu Choi, Seonggon Kim, Myoung Ok Kim, Su-Geun Lim, Zae Young Ryoo","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Glucose-dependent insulinotropic polypeptide (GIP), a 42-aminoacid hormone, exerts multifaceted effects in physiology, most notably in metabolism, obesity, and inflammation. Its significance extends to neuroprotection, promoting neuronal proliferation, maintaining physiological homeostasis, and inhibiting cell death, all of which play a crucial role in the context of neurodegenerative diseases. Through intricate signaling pathways involving its cognate receptor (GIPR), a member of the G protein-coupled receptors, GIP maintains cellular homeostasis and regulates a defense system against ferroptosis, an essential process in aging. Our study, utilizing GIP-overexpressing mice and in vitro cell model, elucidates the pivotal role of GIP in preserving neuronal integrity and combating age-related damage, primarily through the Epac/Rap1 pathway. These findings shed light on the potential of GIP as a therapeutic target for the pathogenesis of ferroptosis in neurodegenerative diseases and aging. [BMB Reports 2024; 57(9): 417-423].</p>","PeriodicalId":9010,"journal":{"name":"BMB Reports","volume":" ","pages":"417-423"},"PeriodicalIF":2.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11444989/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142104038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Potential role of ANGPTL4 in cancer progression, metastasis, and metabolism: a brief review. ANGPTL4 在癌症进展、转移和新陈代谢中的潜在作用:简要回顾。
IF 2.9 3区 生物学
BMB Reports Pub Date : 2024-08-01
Min Seok Park, Sang Eun Kim, Pureunchowon Lee, Ju-Hee Lee, Kyung Hee Jung, Soon-Sun Hong
{"title":"Potential role of ANGPTL4 in cancer progression, metastasis, and metabolism: a brief review.","authors":"Min Seok Park, Sang Eun Kim, Pureunchowon Lee, Ju-Hee Lee, Kyung Hee Jung, Soon-Sun Hong","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Angiopoietin-like 4 (ANGPTL4) has been identified as an adipokine involved in several non-metabolic and metabolic diseases, including angiogenesis, glucose homeostasis, and lipid metabolism. To date, the role of ANGPTL4 in cancer growth and progression, and metastasis, has been variable. Accumulating evidence suggests that proteolytic processing and posttranslational modifications of ANGPTL4 can significantly alter its function, and may contribute to the multiple and conflicting roles of ANGPTL4 in a tissue-dependent manner. With the growing interest in ANGPTL4 in cancer diagnosis and therapy, we aim to provide an up-to-date review of the implications of ANGPTL4 as a biomarker/oncogene in cancer metabolism, metastasis, and the tumor microenvironment (TME). In cancer cells, ANGPTL4 plays an important role in regulating metabolism by altering intracellular glucose, lipid, and amino acid metabolism. We also highlight the knowledge gaps and future prospect of ANGPTL4 in lymphatic metastasis and perineural invasion through various signaling pathways, underscoring its importance in cancer progression and prognosis. Through this review, a better understanding of the role of ANGPTL4 in cancer progression within the TME will provide new insights into other aspects of tumorigenesis and the potential therapeutic value of ANGPTL4. [BMB Reports 2024; 57(8): 343-351].</p>","PeriodicalId":9010,"journal":{"name":"BMB Reports","volume":" ","pages":"343-351"},"PeriodicalIF":2.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11362140/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141750981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Structural stability for surface display of antigen 43 and application to bacterial outer membrane vesicles production. 抗原 43 表面显示的结构稳定性以及在细菌外膜囊泡生产中的应用。
IF 2.9 3区 生物学
BMB Reports Pub Date : 2024-08-01
Gna Ahn, Hyo-Won Yoon, Jae-Won Choi, Woo-Ri Shin, Jiho Min, Yang-Hoon Kim, Ji-Young Ahn
{"title":"Structural stability for surface display of antigen 43 and application to bacterial outer membrane vesicles production.","authors":"Gna Ahn, Hyo-Won Yoon, Jae-Won Choi, Woo-Ri Shin, Jiho Min, Yang-Hoon Kim, Ji-Young Ahn","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Antigen 43 (Ag43) proteins, found on the outer membrane of Escherichia coli, are β-sheets that fold into a unique cylindrical structure known as a β-barrel. There are several known structural similarities between bacterial Ag43 autotransporters and physical components; however, the factors that stabilize the barrel and the mechanism for Ag43 passenger domainmediated translocation across the pore of the β-barrel remain unclear. In this study, we analyzed Ag43β-enhanced green fluorescent protein chimeric variants to provide new insights into the autotransporter Ag43β-barrel assembly, focusing on the impact of the α-helical linker domain. Among the chimeric variants, Ag43β700 showed the highest surface display, which was confirmed through extracellular protease digestion, flow cytometry, and an evaluation of outer membrane vesicles (OMVs). The Ag43β700 module offered reliable information on stable barrel folding and chimera expression at the exterior of the OMVs. [BMB Reports 2024; 57(8): 369-374].</p>","PeriodicalId":9010,"journal":{"name":"BMB Reports","volume":" ","pages":"369-374"},"PeriodicalIF":2.9,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11362141/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141449627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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