Pub Date : 2024-06-01Epub Date: 2024-05-03DOI: 10.1134/S1607672923600525
Shanfeng Li, Long Zhou, Feng Zhao, Haisong Wang, Meng Sun
The present study was aimed to explore the effect of triazole on growth and viability of liver cancer cells. Cell growth was examined using the MTT test and expression of several proteins was assessed by western blotting assay. The Matrigel-coated Transwell assay was employed to examine the infiltration of cells. The data from MTT assay showed that MHCC97H and H4TG liver cancer cell viability was inhibited by triazole in a concentration-dependent manner. After treatment with 0.5, 1.0, 2.0, 4, 8, and 16 µM doses of triazole, the rate of H4TG cell viability was decreased to 96, 73, 58, 39, 29, and 28%, respectively. Treatment of MHCC97H cells with 0.5, 1.0, 2.0, 4, 8, and 16 µM doses of triazole resulted in a reduction in cell viability to 94, 70, 53, 35, 22, and 21%, respectively. Triazole treatment also led to a significant reduction in MHCC97H cell invasiveness compared to the control cells. In MHCC97H cells treated with triazole, there was a noticeable decrease in the levels of p-ERK1/2, and p-Akt protein expression. Treatment of MHCC97H cells with triazole resulted in a prominent increase in p-p38 level. In summary, triazole inhibits growth and viability of liver cancer cells through targeting the activation of p-ERK1/2 and Akt proteins. Therefore, triazole may be investigated further as a therapeutic agent for the treatment of liver cancer.
{"title":"Inhibition of Liver Cancer Cell Viability by Triazole through Up-regulation of p38 Phosphorylation and Targeting the Activation of p-ERK1/2 and Akt Protein Expression.","authors":"Shanfeng Li, Long Zhou, Feng Zhao, Haisong Wang, Meng Sun","doi":"10.1134/S1607672923600525","DOIUrl":"10.1134/S1607672923600525","url":null,"abstract":"<p><p>The present study was aimed to explore the effect of triazole on growth and viability of liver cancer cells. Cell growth was examined using the MTT test and expression of several proteins was assessed by western blotting assay. The Matrigel-coated Transwell assay was employed to examine the infiltration of cells. The data from MTT assay showed that MHCC97H and H4TG liver cancer cell viability was inhibited by triazole in a concentration-dependent manner. After treatment with 0.5, 1.0, 2.0, 4, 8, and 16 µM doses of triazole, the rate of H4TG cell viability was decreased to 96, 73, 58, 39, 29, and 28%, respectively. Treatment of MHCC97H cells with 0.5, 1.0, 2.0, 4, 8, and 16 µM doses of triazole resulted in a reduction in cell viability to 94, 70, 53, 35, 22, and 21%, respectively. Triazole treatment also led to a significant reduction in MHCC97H cell invasiveness compared to the control cells. In MHCC97H cells treated with triazole, there was a noticeable decrease in the levels of p-ERK1/2, and p-Akt protein expression. Treatment of MHCC97H cells with triazole resulted in a prominent increase in p-p38 level. In summary, triazole inhibits growth and viability of liver cancer cells through targeting the activation of p-ERK1/2 and Akt proteins. Therefore, triazole may be investigated further as a therapeutic agent for the treatment of liver cancer.</p>","PeriodicalId":529,"journal":{"name":"Doklady Biochemistry and Biophysics","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140848227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-01Epub Date: 2024-01-08DOI: 10.1134/S1607672923700631
E A Romanova, D M Yurkina, D V Yashin, L P Sashchenko, G P Georgiev
The search for new cytotoxic agents capable of lysing tumor cells is an important task in the fight against cancer. Here we have shown that the HspBP1 protein, the chaperone of the heat shock protein Hsp70, is able to form a complex with the previously discovered peptide (17.1) of the innate immunity protein Tag7. Experiments using thermophoresis demonstrated that the affinity of the Tag7 protein peptide 17.1 to the HspBP1 molecule is 100 times higher than that of the full-sized Tag7 molecule. The addition of the 17.1-HspBP1 complex to tumor cells induces apoptosis and necroptosis in them. The results obtained in this work can be used to develop promising antitumor drugs.
{"title":"HspBP1 in Complex with the Peptide of the Innate Immunity Protein Tag7 is Able to Lyse Tumor Cells Carrying TNFR1 Receptor.","authors":"E A Romanova, D M Yurkina, D V Yashin, L P Sashchenko, G P Georgiev","doi":"10.1134/S1607672923700631","DOIUrl":"10.1134/S1607672923700631","url":null,"abstract":"<p><p>The search for new cytotoxic agents capable of lysing tumor cells is an important task in the fight against cancer. Here we have shown that the HspBP1 protein, the chaperone of the heat shock protein Hsp70, is able to form a complex with the previously discovered peptide (17.1) of the innate immunity protein Tag7. Experiments using thermophoresis demonstrated that the affinity of the Tag7 protein peptide 17.1 to the HspBP1 molecule is 100 times higher than that of the full-sized Tag7 molecule. The addition of the 17.1-HspBP1 complex to tumor cells induces apoptosis and necroptosis in them. The results obtained in this work can be used to develop promising antitumor drugs.</p>","PeriodicalId":529,"journal":{"name":"Doklady Biochemistry and Biophysics","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11021269/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139376962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-01Epub Date: 2024-03-12DOI: 10.1134/S1607672924700753
L A Ovchinnikova, S S Dzhelad, T O Simaniv, M N Zakharova, A G Gabibov, Y A Lomakin
Multiple sclerosis (MS) is an autoimmune neurodegenerative disease leading to inevitable disability and primarily affecting the young and middle-aged population. Recent studies have shown a direct correlation between the risk of MS development and Epstein-Barr virus (EBV) infection. Analysis of the titer of EBV-specific antibodies among patients with MS and healthy donors among Russian population confirmed that MS is characterized by an increased level of serum IgG binding EBNA-1 (EBV nuclear antigen 1). The number of patients with elevated levels of EBNA-1-specific antibodies does not differ statistically significantly between two groups with diametrically opposite courses of MS: benign MS or highly active MS. It can be assumed that the primary link between EBV and the development of MS is restricted to the initiation of the disease and does not impact its severity.
{"title":"The Level of Anti-Viral Antigen-Specific Antibodies to EBNA-1 in the Serum of MS Patients Does not Depend on the Severity of the Disease.","authors":"L A Ovchinnikova, S S Dzhelad, T O Simaniv, M N Zakharova, A G Gabibov, Y A Lomakin","doi":"10.1134/S1607672924700753","DOIUrl":"10.1134/S1607672924700753","url":null,"abstract":"<p><p>Multiple sclerosis (MS) is an autoimmune neurodegenerative disease leading to inevitable disability and primarily affecting the young and middle-aged population. Recent studies have shown a direct correlation between the risk of MS development and Epstein-Barr virus (EBV) infection. Analysis of the titer of EBV-specific antibodies among patients with MS and healthy donors among Russian population confirmed that MS is characterized by an increased level of serum IgG binding EBNA-1 (EBV nuclear antigen 1). The number of patients with elevated levels of EBNA-1-specific antibodies does not differ statistically significantly between two groups with diametrically opposite courses of MS: benign MS or highly active MS. It can be assumed that the primary link between EBV and the development of MS is restricted to the initiation of the disease and does not impact its severity.</p>","PeriodicalId":529,"journal":{"name":"Doklady Biochemistry and Biophysics","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11021220/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140108705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-01Epub Date: 2024-01-08DOI: 10.1134/S160767292360029X
Zhiyong Wang, Min Wang, Jiahao Huang, Mao Lin, Pei Wei
Although epigallocatechin-3-gallate (EGCG) can potentiate chemotherapeutic drugs at high concentrations, its clinical translation is hampered by exceeding possible concentration thresholds. This study proposes a dichotomous use of low-concentration EGCG in chemotherapy. During the first cycle of combined treatment with oxaliplatin (OXA), low-concentration EGCG antagonized the cytotoxic effect of OXA on colorectal cancer (CRC) cells. However, when OXA was subsequently administered, the sensitivity of CRC cells markedly increased. Although low-concentration EGCG counteracted OXA, it reduced the OXA-induced secretion of vascular endothelial growth factor by tumor cells, thereby contributing to the increase in the sensitivity of tumor cells to the second round of OXA treatment. Therefore, low-concentration EGCG showed potential as a viable adjunct to modulate chemosensitivity in CRC.
{"title":"Dichotomic Role of Low-Concentration EGCG in the Oxaliplatin Sensitivity of Colorectal Cancer Cells.","authors":"Zhiyong Wang, Min Wang, Jiahao Huang, Mao Lin, Pei Wei","doi":"10.1134/S160767292360029X","DOIUrl":"10.1134/S160767292360029X","url":null,"abstract":"<p><p>Although epigallocatechin-3-gallate (EGCG) can potentiate chemotherapeutic drugs at high concentrations, its clinical translation is hampered by exceeding possible concentration thresholds. This study proposes a dichotomous use of low-concentration EGCG in chemotherapy. During the first cycle of combined treatment with oxaliplatin (OXA), low-concentration EGCG antagonized the cytotoxic effect of OXA on colorectal cancer (CRC) cells. However, when OXA was subsequently administered, the sensitivity of CRC cells markedly increased. Although low-concentration EGCG counteracted OXA, it reduced the OXA-induced secretion of vascular endothelial growth factor by tumor cells, thereby contributing to the increase in the sensitivity of tumor cells to the second round of OXA treatment. Therefore, low-concentration EGCG showed potential as a viable adjunct to modulate chemosensitivity in CRC.</p>","PeriodicalId":529,"journal":{"name":"Doklady Biochemistry and Biophysics","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11021325/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139376961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-01Epub Date: 2024-03-12DOI: 10.1134/S1607672923700722
N M Shepelev, A O Kurochkina, O A Dontsova, M P Rubtsova
High-throughput ribosome profiling demonstrates the translation of thousands of small open reading frames located in the 5' untranslated regions of messenger RNAs (upstream ORFs). Upstream ORF can both perform a regulatory function by influencing the translation of the downstream main ORF and encode a small functional protein or microprotein. In this work, we showed that the 5' untranslated region of the PRPF19 mRNA encodes an upstream ORF that is translated in human cells. Inactivation of this upstream ORF reduces the viability of human cells.
{"title":"PRPF19 mRNA Encodes a Small Open Reading Frame That Is Important for Viability of Human Cells.","authors":"N M Shepelev, A O Kurochkina, O A Dontsova, M P Rubtsova","doi":"10.1134/S1607672923700722","DOIUrl":"10.1134/S1607672923700722","url":null,"abstract":"<p><p>High-throughput ribosome profiling demonstrates the translation of thousands of small open reading frames located in the 5' untranslated regions of messenger RNAs (upstream ORFs). Upstream ORF can both perform a regulatory function by influencing the translation of the downstream main ORF and encode a small functional protein or microprotein. In this work, we showed that the 5' untranslated region of the PRPF19 mRNA encodes an upstream ORF that is translated in human cells. Inactivation of this upstream ORF reduces the viability of human cells.</p>","PeriodicalId":529,"journal":{"name":"Doklady Biochemistry and Biophysics","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11021245/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140108657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-01Epub Date: 2024-01-07DOI: 10.1134/S1607672923700588
E S Solomatina, E N Nishkomaeva, A V Kovaleva, A V Tvorogova, D M Potashnikova, A A Saidova
Myosin 1C is a monomeric myosin motor with a truncated tail domain. Such motors are referred as slow "tension sensors." Three isoforms of myosin 1C differ in short N-termed amino acid sequences, the functional differences between isoforms have not been elucidated. Myosin 1C isoform A was described as a diagnostic marker for prostate cancer, but its role in tumor transformation remains unknown. Based on data on the functions of myosin 1C, we hypothesized the potential role of myosin 1C isoforms in maintaining the tumor phenotype of prostate cancer cells. In our work, we showed that a decrease in the expression level of myosin 1C isoform C leads to an increase in the proliferative activity of prostate tumor cells.
肌球蛋白 1C 是一种具有截尾结构域的单体肌球蛋白马达。这种马达被称为缓慢的 "张力传感器"。肌球蛋白 1C 的三种异构体在短 N 端氨基酸序列上存在差异,但异构体之间的功能差异尚未阐明。肌球蛋白 1C 同工酶 A 被描述为前列腺癌的诊断标志物,但它在肿瘤转化中的作用仍不清楚。根据有关肌球蛋白 1C 功能的数据,我们推测肌球蛋白 1C 同工酶在维持前列腺癌细胞肿瘤表型中的潜在作用。我们的研究表明,肌球蛋白 1C 同工酶 C 表达水平的降低会导致前列腺肿瘤细胞增殖活性的增加。
{"title":"Parameters of Cell Death and Proliferation of Prostate Cancer Cells with Altered Expression of Myosin 1C Isoforms.","authors":"E S Solomatina, E N Nishkomaeva, A V Kovaleva, A V Tvorogova, D M Potashnikova, A A Saidova","doi":"10.1134/S1607672923700588","DOIUrl":"10.1134/S1607672923700588","url":null,"abstract":"<p><p>Myosin 1C is a monomeric myosin motor with a truncated tail domain. Such motors are referred as slow \"tension sensors.\" Three isoforms of myosin 1C differ in short N-termed amino acid sequences, the functional differences between isoforms have not been elucidated. Myosin 1C isoform A was described as a diagnostic marker for prostate cancer, but its role in tumor transformation remains unknown. Based on data on the functions of myosin 1C, we hypothesized the potential role of myosin 1C isoforms in maintaining the tumor phenotype of prostate cancer cells. In our work, we showed that a decrease in the expression level of myosin 1C isoform C leads to an increase in the proliferative activity of prostate tumor cells.</p>","PeriodicalId":529,"journal":{"name":"Doklady Biochemistry and Biophysics","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11021239/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139376967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-01Epub Date: 2024-01-07DOI: 10.1134/S1607672923700618
T V Bobik, M A Simonova, N U Rushkevich, N N Kostin, G A Skryabin, V D Knorre, A A Schulga, E V Konovalova, G M Proshkina, A G Gabibov, S M Deev
According to the World Health Organization, as of January 3, 2020 to September 13, 2023, there were approximately 23 million confirmed cases of COVID-19 reported in the Russian Federation, about 400 thousand of which were fatal. Considering the high rate of mutation of the RNA-containing virus genome, which inevitably leads to the emergence of new infectious strains (Eris and Pyrola), the search for medicinal antiviral agents remains an urgent task. Moreover, taking into account the actively mutating receptor-binding domain, this task requires fundamentally new solutions. This study proposes a candidate immunoliposomal drug that targets the S protein of SARS-CoV-2 by the monoclonal neutralizing antibody P4A1 and ensures the penetration of a highly active ribonuclease into the virus-infected cell, which degrades, among cellular RNA, viral RNA too. We demonstrate a more than 40-fold increase in the neutralizing activity of the developed drug compared to the free monoclonal neutralizing antibody.
{"title":"Immunoliposomes As a Promising Antiviral Agent against SARS-CoV-2.","authors":"T V Bobik, M A Simonova, N U Rushkevich, N N Kostin, G A Skryabin, V D Knorre, A A Schulga, E V Konovalova, G M Proshkina, A G Gabibov, S M Deev","doi":"10.1134/S1607672923700618","DOIUrl":"10.1134/S1607672923700618","url":null,"abstract":"<p><p>According to the World Health Organization, as of January 3, 2020 to September 13, 2023, there were approximately 23 million confirmed cases of COVID-19 reported in the Russian Federation, about 400 thousand of which were fatal. Considering the high rate of mutation of the RNA-containing virus genome, which inevitably leads to the emergence of new infectious strains (Eris and Pyrola), the search for medicinal antiviral agents remains an urgent task. Moreover, taking into account the actively mutating receptor-binding domain, this task requires fundamentally new solutions. This study proposes a candidate immunoliposomal drug that targets the S protein of SARS-CoV-2 by the monoclonal neutralizing antibody P4A1 and ensures the penetration of a highly active ribonuclease into the virus-infected cell, which degrades, among cellular RNA, viral RNA too. We demonstrate a more than 40-fold increase in the neutralizing activity of the developed drug compared to the free monoclonal neutralizing antibody.</p>","PeriodicalId":529,"journal":{"name":"Doklady Biochemistry and Biophysics","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11021331/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139376963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-01Epub Date: 2024-01-08DOI: 10.1134/S1607672923700643
D O Bayramova, A M Azieva, A V Feoktistov, S G Georgieva, N V Soshnikova
The PBAF chromatin remodeling complex of the SWI/SNF family plays a critical role in the regulation of gene expression during tissue differentiation and organism development. The subunits of the PBAF complex have domains responsible for binding to N-terminal histone sequences. It determines the specificity of binding of the complex to chromatin. PHF10, a specific subunit of the PBAF complex, contains a DPF domain, which is a unique chromatin interaction domain. A PHF10 isoform that lacks the DPF domain is also present in vertebrate cells. This work shows that during neuronal and muscle differentiation of human and mouse cells, the expression of PHF10 isoforms changes: the form that does not have DPF replaces the form in which it is present. Replacement of PHF10 isoforms in the PBAF complex may affect its selectivity in the regulation of genes in differentiating cells.
{"title":"Neuronal and Muscle Differentiation of Mammalian Cells Is Accompanied by a Change in PHF10 Isoform Expression.","authors":"D O Bayramova, A M Azieva, A V Feoktistov, S G Georgieva, N V Soshnikova","doi":"10.1134/S1607672923700643","DOIUrl":"10.1134/S1607672923700643","url":null,"abstract":"<p><p>The PBAF chromatin remodeling complex of the SWI/SNF family plays a critical role in the regulation of gene expression during tissue differentiation and organism development. The subunits of the PBAF complex have domains responsible for binding to N-terminal histone sequences. It determines the specificity of binding of the complex to chromatin. PHF10, a specific subunit of the PBAF complex, contains a DPF domain, which is a unique chromatin interaction domain. A PHF10 isoform that lacks the DPF domain is also present in vertebrate cells. This work shows that during neuronal and muscle differentiation of human and mouse cells, the expression of PHF10 isoforms changes: the form that does not have DPF replaces the form in which it is present. Replacement of PHF10 isoforms in the PBAF complex may affect its selectivity in the regulation of genes in differentiating cells.</p>","PeriodicalId":529,"journal":{"name":"Doklady Biochemistry and Biophysics","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11021293/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139376966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-01Epub Date: 2024-01-07DOI: 10.1134/S160767292370059X
M M Kurshakova, Y A Yakusheva, S G Georgieva
The TREX-2-ORC protein complex of D. melanogaster is necessary for the export of the bulk of synthesized poly(A)-containing mRNA molecules from the nucleus to the cytoplasm through the nuclear pores. However, the role of this complex in the export of other types of RNA remains unknown. We have shown that TREX-2-ORC participates in the nuclear export of histone mRNAs: it associates with histone mRNPs, binds to histone H3 mRNA at the 3'-terminal part of the coding region, and participates in the export of histone mRNAs from the nucleus to the cytoplasm.
{"title":"TREX-2-ORC Complex of D. melanogaster Participates in Nuclear Export of Histone mRNA.","authors":"M M Kurshakova, Y A Yakusheva, S G Georgieva","doi":"10.1134/S160767292370059X","DOIUrl":"10.1134/S160767292370059X","url":null,"abstract":"<p><p>The TREX-2-ORC protein complex of D. melanogaster is necessary for the export of the bulk of synthesized poly(A)-containing mRNA molecules from the nucleus to the cytoplasm through the nuclear pores. However, the role of this complex in the export of other types of RNA remains unknown. We have shown that TREX-2-ORC participates in the nuclear export of histone mRNAs: it associates with histone mRNPs, binds to histone H3 mRNA at the 3'-terminal part of the coding region, and participates in the export of histone mRNAs from the nucleus to the cytoplasm.</p>","PeriodicalId":529,"journal":{"name":"Doklady Biochemistry and Biophysics","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11021305/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139376969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-19DOI: 10.1134/s1607672923700576
M. V. Sinegubova, D. E. Kolesov, L. K. Dayanova, I. I. Vorobiev, N. A. Orlova
Abstract
We studied the influence of heterologous signal peptides in the β-chains of glycoprotein hormones on the biosynthesis of these hormones in a transiently transfected culture of Chinese hamster ovary cells CHO S. When the natural signal peptides of the β-chains were replaced with the heterologous signal peptide of human serum albumin, cell productivity was increased 2–2.5 times for human luteinizing hormone, human chorionic gonadotropin, and human thyroid-stimulating hormone, but not for human follicle-stimulating hormone. No significant increase in cell productivity was observed for human azurocidin signal peptide and human glycoprotein hormone α-chain signal peptide. The used approach allows quick assessing the effect of heterologous signal peptides on the biosynthesis of heterodimeric proteins of various classes.
{"title":"Enhancing Human Glycoprotein Hormones Production in CHO Cells Using Heterologous Beta-Chain Signal Peptides","authors":"M. V. Sinegubova, D. E. Kolesov, L. K. Dayanova, I. I. Vorobiev, N. A. Orlova","doi":"10.1134/s1607672923700576","DOIUrl":"https://doi.org/10.1134/s1607672923700576","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>We studied the influence of heterologous signal peptides in the β-chains of glycoprotein hormones on the biosynthesis of these hormones in a transiently transfected culture of Chinese hamster ovary cells CHO S. When the natural signal peptides of the β-chains were replaced with the heterologous signal peptide of human serum albumin, cell productivity was increased 2–2.5 times for human luteinizing hormone, human chorionic gonadotropin, and human thyroid-stimulating hormone, but not for human follicle-stimulating hormone. No significant increase in cell productivity was observed for human azurocidin signal peptide and human glycoprotein hormone α-chain signal peptide. The used approach allows quick assessing the effect of heterologous signal peptides on the biosynthesis of heterodimeric proteins of various classes.</p>","PeriodicalId":529,"journal":{"name":"Doklady Biochemistry and Biophysics","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138742747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}