Current pharmaceutical biotechnology最新文献

{"title":"Recent Advancements in Breast Cancer Therapies and Biomarkers: Mechanisms and Clinical Significance.","authors":"Arbab Husain, Hamda Khan, Jamale E Fatima, Shirjeel Ahmad Siddiqui, Akash Deep Singh, Adil Husain, Shivam Pandey, Ravi Kant, Afreen Khanam, Pratibha Pandey, Fahad Khan","doi":"10.2174/0113892010343901250204054241","DOIUrl":"https://doi.org/10.2174/0113892010343901250204054241","url":null,"abstract":"<p><p>Breast cancer remains a critical health concern, requiring continual innovation in treatment to improve patient outcomes. The continuous obstacles in therapy and the need for novel techniques underline the importance of making advances in this discipline. Precision medicine has emerged as a viable method, with genomic profiling and molecular subtyping allowing for targeted therapy based on distinct breast cancer subtypes. This strategy is supplemented by advances in early detection and screening, with technologies like liquid biopsy promising earlier and more accurate diagnosis. The introduction of immunotherapy has transformed breast cancer treatment by using the body's immune system to combat cancer. Recent discoveries, particularly combination medicines, attempt to circumvent resistance mechanisms and improve treatment success. Furthermore, including lifestyle therapies such as nutrition, exercise, and psychological support has been demonstrated to reduce breast cancer risk and strengthen survivability rates. Survivorship programs serve an important role in comprehensive care by addressing long-term needs and enhancing survivors' quality of life. Investigating innovative therapeutic approaches, such as developing cancer vaccines, epigenetic modulators, and RNA interference (RNAi) therapy, provides new treatment options. Fostering collaboration among healthcare personnel through shared decision-making and tumor committees is essential for the integration of multidisciplinary care, which ensures patientcentered care. Although advancements have been made, there are still numerous obstacles to overcome in the implementation of these future directions. To effectively confront these obstacles, it is imperative to capitalize on opportunities for innovation and collaboration. It is imperative to address ethical, social, and economic factors in the advancement of breast cancer care to ensure that innovations are equitable and accessible. In conclusion, the future of breast cancer management is bright since substantial improvements are on the verge of turning patient treatment into a completely different experience. For these breakthroughs to become a reality, it is necessary to maintain research efforts, advocate for them, and work together. The dedication to innovation and the joint effort to overcome current problems are the two important factors that will determine whether or not breast cancer treatment and surviving will have a better future.</p>","PeriodicalId":10881,"journal":{"name":"Current pharmaceutical biotechnology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143413700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Suicide Gene System Cytosine Deaminase::Uracylphosphoribosyltransferase/ 5-fluorocytosine Displays a Strong Cytotoxic Effect on Human Melanoma Cells.","authors":"Sofía Gala Bernabei-Cornejo, Gerardo Claudio Glikin, Liliana María Elena Finocchiaro","doi":"10.2174/0113892010319891241121115002","DOIUrl":"https://doi.org/10.2174/0113892010319891241121115002","url":null,"abstract":"<p><strong>Introduction: </strong>Melanoma is considered the deadliest form of skin cancer. While monoclonal-antibodies and molecular targets marked milestones in melanoma therapy, more research is needed to overcome the advanced stages of this disease.</p><p><strong>Objective: </strong>To explore the possible use of the yeast cytosine deaminase::uracil phosphoribosyltransferase fusion enzyme/5-fluorocytosine (CD::UPRT/5FC) suicide gene (SG) system for human melanoma.</p><p><strong>Methods: </strong>In eight metastatic human melanoma cell lines, we determined: cytotoxicity, lipofection efficiencies, colony forming capacity and bystander effects due to soluble and/or particulate factors secreted to the conditioned media after treatments.</p><p><strong>Results: </strong>CD::UPRT induced cell death in a prodrug (5FC) concentration-dependent manner and was able to eliminate the sub-population of surviving cells with clonogenic capacity. Compared with human interferon-β gene transfer or the herpes simplex virus thymidine kinase/ganciclovir system, at 100 μM 5FC, CD::UPRT was more efficient in inducing cell death. The strong cytotoxic response contrasted with the low lipofection efficiencies (<5%), indicating a potent bystander effect. We analyzed the contribution of soluble and particulate factors released by SG lipofected cells to the conditioned media (CM) finding that they were able to deliver CD::UPRT genetic information and/or recombinant enzyme to recipient cells. When exposed to 5FC, the cells that received either supernatant or 12000×g pellet fractions of CM, efficiently activated the prodrug because of the acquired CD::UPRT activity and caused cell death.</p><p><strong>Conclusion: </strong>This suicide gene therapy approach, amplified by the release of free 5-fluorouracil and soluble and particulate factors containing CD::UPRT genetic information and/or enzyme, could have a great clinical potential for malignant melanoma.</p>","PeriodicalId":10881,"journal":{"name":"Current pharmaceutical biotechnology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143413714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Linking Processed and Red Meat Consumption to Specific Lung Cancer Subtypes: A Mendelian Randomization Analysis.","authors":"Kang Wen, Zhaoxia Wang","doi":"10.2174/0113892010338630241217104104","DOIUrl":"https://doi.org/10.2174/0113892010338630241217104104","url":null,"abstract":"<p><strong>Objective: </strong>The aim of this study was to elucidate the causal relationship between the consumption of processed and red meats (specifically pork, beef, and mutton) and susceptibility to various lung cancer types.</p><p><strong>Background: </strong>Previous observational studies have indicated a potential cancer risk associated with red and processed meat consumption. However, a clear causal relationship remains undetermined.</p><p><strong>Purpose: </strong>Refining the study of the association between processed and red meat and lung cancer using a Mendelian randomization study.</p><p><strong>Method: </strong>We harnessed the robustness of Two-Sample Mendelian Randomization, integrating data from the esteemed UK Biobank, capturing dietary habits with oncological datasets from the Transdisciplinary Research In Cancer of the Lung. The analytical approach was anchored in the inverse variance weighted (IVW) method, enriched by sensitivity analyses for result validation.</p><p><strong>Result: </strong>Genetic predispositions favoring processed meat consumption are linked to heightened risks of lung cancer [IVW analysis, OR=1.8203, 95%CI [1.1115,2.9811], p=0.0173], and in LUSC [IVW analysis, OR=2.9274, 95%CI [1.4810,5.7863], p=0.0020]. Beef was more important in lung cancer [IVW analysis, OR=4.6739, 95% CI [2.4947, 8.7570], p=0.000001], in LUSC [IVW analysis, OR=3.3251, 95%CI [1.2055,9.1717], p=0.0203] and in LUAD [IVW analysis, OR=7.1480, 95%CI [3.0074,16.9893], p=0.000008]. However, no significant links were identified between mutton or pork intake and lung cancer.</p><p><strong>Conclusion: </strong>Processed meat and beef consumption may elevate lung cancer risk. Additional research is warranted to investigate potential links between mutton or pork consumption and the risk of lung cancer.</p>","PeriodicalId":10881,"journal":{"name":"Current pharmaceutical biotechnology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143413698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring the Impact of Curcumin and Carbon Nanotubes on BetaAmyloid Peptide Dimer: Insights from Molecular Dynamics Simulation and Density Functional Theory Methods.","authors":"Elham Mohammadhassani, Mohammad Reza Bozorgmehr","doi":"10.2174/0113892010333267250124042859","DOIUrl":"https://doi.org/10.2174/0113892010333267250124042859","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Aim: &lt;/strong&gt;At the molecular level, the accumulation of beta-amyloid peptide is one of the important mechanisms in the formation of amyloid plaques. These plaques, in turn, are considered one of the important factors in the development of Alzheimer's disease. Therefore, it is important to study the factors affecting beta-amyloid peptides. This study aimed to investigate the impact of curcumin on the structure of beta-amyloid peptide dimers and how carbon nanotubes influence this interaction. The research focused on understanding the molecular dynamics and structural changes induced by curcumin to reduce beta-amyloid toxicity.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Background: &lt;/strong&gt;Curcumin, a phenolic compound, is known for its ability to prevent the aggregation of beta-amyloid peptides, which are associated with neurodegenerative diseases. On the other hand, due to the hydrophobic nature of curcumin, its solubility in aqueous media is limited. To overcome this, a carrier is used. Carbon nanotubes are among the carriers of curcumin. Nanotubes are popular candidates for the delivery of effective pharmaceutical compounds due to their unique surface properties and biocompatibility. The use of a carrier affects the study of the mechanism of interaction of curcumin with the peptide, which in turn makes it difficult to study this mechanism. Thus, despite its recognized inhibitory action on beta-amyloid aggregation, there is limited understanding of its precise effects on the peptide's structure. This study addresses this gap by employing molecular dynamics simulations and density functional theory methods.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Objective: &lt;/strong&gt;The objective of this study was to elucidate the structural effects of curcumin on betaamyloid peptide dimers and assess the modifying role of carbon nanotubes using computational methods.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Method: &lt;/strong&gt;The effect of curcumin on beta-amyloid peptide dimers was studied using molecular dynamics simulations and density functional theory. The simulations were conducted both in the presence and absence of carbon nanotubes to assess their influence on curcumin's activity and the structural stability of the peptide.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;The presence of curcumin and carbon nanotubes induced relative instability in betaamyloid dimers. Curcumin exhibited stronger interactions with the N-terminal and C-terminal regions of the peptide than with the middle section. It also reduced the toxicity of the peptide by particularly affecting the salt bridge and the arrangement of Phe19, Ile31, and Leu34 residues. Carbon nanotubes mitigated curcumin's effects on the peptide, altering curcumin's behavior by reducing its activity, but increasing its solvation energy.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusion: &lt;/strong&gt;Curcumin plays a significant role in destabilizing beta-amyloid dimers and reducing their toxicity, with its effect being modulated by the presence of carbon nanotubes. This dual influence highlights the potential of using ","PeriodicalId":10881,"journal":{"name":"Current pharmaceutical biotechnology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143397867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Polygonati Rhizoma Alleviates Vascular Dementia through Regulating Microglial Polarization Transitions Mediated by NF-κB/NLRP3 Pathway.","authors":"Yin Yuan, Meng Li, Tian Zhou, Xi Chen, Yihang Li","doi":"10.2174/0113892010336948241209172018","DOIUrl":"https://doi.org/10.2174/0113892010336948241209172018","url":null,"abstract":"<p><strong>Objectives: </strong>Polygonati rhizoma (PR) has been used for thousands of years to alleviate dementia. Here, we aimed to elucidate the effect of alleviating vascular dementia (VaD) and underlying mechanism of PR.</p><p><strong>Methods: </strong>In vivo, rats were treated with two-vessel occlusion (2VO) induces VaD. The anti-VaD effect measured by learning and memory capacity, cerebral pathological structure, and cerebral microglial M1/M2 phenotype biomarkers. Subsequently, screening potential mechanisms of PR for VaD using network pharmacology and molecular docking methods. Moreover, the efficacy of PR-contained serum on LPS-induced inflammation and polarization on BV2 microglia was evaluated with NF-κB/NLRP3 pathway.</p><p><strong>Results: </strong>In vivo, PR significantly enhanced learning and memory capacity, suppressed M1 microglia activation and promoted M2 polarization. Through network pharmacology and molecular docking approaches, we screened inflammation as a potential mechanism for PR anti-VaD, with targets involving NF-κB. Meanwhile, PR could regulate the expression of NF-κB/NLRP3 pathway compared with that of LPS-induced BV2 cells. Furthermore, by utilizing PDTC, an NF-κB antagonist, it was found that the effect of PR was similar to that of PDTC.</p><p><strong>Conclusion: </strong>PR could hamper inflammation and microglial polarization in 2VO-induced VaD and LPS-induced BV2 cells. Our results showed that PR was a promising Chinese herb to alleviate VaD, and the potential mechanism might be related to NF-κB/NLRP3 signaling pathway.</p>","PeriodicalId":10881,"journal":{"name":"Current pharmaceutical biotechnology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143397970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on Neuroimmune Gastrointestinal Diseases Based on Artificial Intelligence: Molecular Dynamics Analysis of Caffeine and DRD3 Protein.","authors":"Yi Qin, Shuran Huo, Ana María González, Lizhong Guo, Javier Santos, Liangyu Li","doi":"10.2174/0113892010325902241120111429","DOIUrl":"https://doi.org/10.2174/0113892010325902241120111429","url":null,"abstract":"<p><strong>Objectives: </strong>The aim of this study was to develop a clinical application model for the rational use of caffeine.</p><p><strong>Background: </strong>Caffeine is related to the incidence of neuro immune gastrointestinal diseases. Coffee consumption needs to be optimized in order to reduce the incidence rate.</p><p><strong>Purpose: </strong>By using KEEG analysis to explore potential molecular signaling pathways involved in the progression of neurological immune gastrointestinal diseases, and analyzing the details of this signaling Pathway using molecular simulation results, which can support AI system for doctor.</p><p><strong>Methods: </strong>The research team designed a controlled experiment to analyze the differences in reward and reinforcement of Brain pleasure/addiction and dopamine related signaling pathways function between multiple groups of people with different coffee drinking habits and a blank control group. The study team used molecular dynamics methods to investigate the signaling route that links coffee with the binding of dopamine receptor D3.AI is used to predict the prevalence of gastric reflux disease.</p><p><strong>Results: </strong>Human experiments have shown a correlation between caffeine intake and gastroesophageal reflux disease. AI algorithm results can provide clinical support, and molecular simulation results are consistent with human experimental results. Caffeine and DRD3 protein have a stable interaction system.</p><p><strong>Conclusion: </strong>The research team elucidated the intermolecular interaction between caffeine and DRD3, and AI algorithms can predict the likelihood of disease occurrence, providing a new strategy for clinical practice. This study has passed ethical approval at Chifeng Cancer Hospital, and the ethical documents for this study have been submitted to the World Health Organization for filing.</p>","PeriodicalId":10881,"journal":{"name":"Current pharmaceutical biotechnology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143363867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"HYQTD Drug-containing Serum Alleviates H2O2-induced Endothelial Oxidative Damage by Increasing Mitochondrial ATP Synthesis and Inhibiting ROS.","authors":"Jin Wu, Lijuan Chen, Ying Du, Xue Leng, Dongchao Yuan, Mingqian Yang, Yeyu Zhao, Bin Lv, Lianqun Jia","doi":"10.2174/0113892010333981250122003904","DOIUrl":"https://doi.org/10.2174/0113892010333981250122003904","url":null,"abstract":"<p><strong>Background: </strong>Atherosclerosis (AS) is caused by the endothelium injury associated with oxidative stress. Previous studies have shown that the Phlegm-Eliminating and Stasis- Transforming Decoction (Huayu Qutan Decoction, HYQTD) has mitochondrial protective function. The objective of this research was to explore how HYQTD drug-containing serum (HYQTD-DS) could potentially protect mitochondrial energy production in endothelial cells (ECs) from injury caused by hydrogen peroxide (H2O2)-induced oxidative damage in AS through SIRT1/PGC-1α/ Nrf2 pathway.</p><p><strong>Methods: </strong>After preparation of containing serum, the cells were divided into various categories, such as control group, H2O2 group (an oxidative damage model), HYQTD group, Selisistat (EX527, a SIRT1 inhibitor) combined with H2O2 group, and EX527 combined with HYQTD group. The evaluation of oxidative stress involved measuring reactive oxygen species (ROS) and malondialdehyde (MDA) generation, as well as Superoxide Dismutase (SOD) activity. Mitochondrial function and ultrastructure were measured by Transmission electron microscopy (TEM), mitochondrial membrane potential (MMP), rate of oxygen consumption (OCR), respiratory chain complex activities, and ATP production. The key proteins and gene levels in the SIRT1/PGC-1α/Nrf2 pathway was quantified by quantitative real-time PCR (RT-PCR) and Western blotting analysis.</p><p><strong>Results: </strong>We found oxidative stress, mitochondrial damage, and mitochondrial energy disorder in H2O2-induced ECs. However it indicated a marked reversal after pretreated with HYQTD-DS. Mechanistically, EX527 induced increased oxidative stress, worse mitochondrial dysfunction, and less ATP synthesis.</p><p><strong>Conclusion: </strong>We demonstrated that HYQTD-DS attenuated oxidative stress, improved mitochondrial function, and up-regulated mitochondrial ATP synthesis by activating SIRT1/PGC- 1α/Nrf2 pathway-induced mitochondrial biogenesis and its downstream NADH dehydrogenase (ubiquinone) flavoprotein 2 (NDV2).</p>","PeriodicalId":10881,"journal":{"name":"Current pharmaceutical biotechnology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143051913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Harmony in Motion: The Role of Exercise in Orchestrating Neuroprotection for Individuals with Alzheimer's Disease and Diabetes Examined from a Psychological Perspective.","authors":"Dongzi Zhang, Munir Ullah Khan, Safir Ullah","doi":"10.2174/0113892010340895250119183021","DOIUrl":"https://doi.org/10.2174/0113892010340895250119183021","url":null,"abstract":"<p><p>According to epidemiological studies, diabetes is more common in patients with AD, which suggests that diabetes is a significant risk factor for AD. Accelerating brain cell degeneration, worsening cognitive decline, and increasing susceptibility to AD can be attributed to pathogenic mechanisms linked to diabetes, such as impaired insulin signaling in the brain, neuroinflammation, oxidative stress, mitochondrial dysfunction, and vascular impairment. These factors can also lead to the accumulation of β-amyloid and tau protein phosphorylation. New research suggests that certain drugs used to manage diabetes have different levels of effectiveness in treating or preventing Alzheimer's disease. Exercise has numerous advantages, including the reduction of neuroinflammation, alleviation of oxidative stress and mitochondrial dysfunction, improvement of endothelial and cerebrovascular function, stimulation of neurogenesis, and prevention of pathological changes associated with diabetes-related Alzheimer's disease through various internal mechanisms. This study examined the development of Alzheimer's disease (AD) in relation to diabetes, evaluated the ability of specific antidiabetic drugs to prevent and treat AD, and investigated the impacts and underlying processes of exercise interventions in improving AD treatment for individuals with diabetes.</p>","PeriodicalId":10881,"journal":{"name":"Current pharmaceutical biotechnology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143045835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Fed-batch Process for the Production of Recombinant Adeno-Associated Virus (rAAV) Vectors Using the Sf9-Rhabdovirus-Negative Cell Line.","authors":"Xinran Li, Jieyi Gu, Haoquan Wu, Yuanyuan Xie","doi":"10.2174/0113892010355060250108034118","DOIUrl":"https://doi.org/10.2174/0113892010355060250108034118","url":null,"abstract":"<p><strong>Background: </strong>Gene therapy has been effectively applied in many biological studies and for the treatment of many genetic or cancer diseases. Currently, Recombinant Adeno- Associated Viruses (rAAVs) are one of the main types of delivery vectors used for gene therapy. rAAV vectors produced via the Sf9 cells have the advantages of high rAAV yields, easy scaleup, and low cost.</p><p><strong>Method: </strong>Here, we used Sf9 rhabdovirus-negative (Sf9-RVN) cells to validate and optimize the rAAV production process, and the fed-batch process increased the rAAV production titre.</p><p><strong>Results: </strong>In the fed-batch procedure, the cell density reached 12.9×106 cells/mL, which was approximately twice as high as in the batch culture process. The rAAV titre was also approximately 8-fold higher in the fed-batch process, reaching 1.5×1012 VG/mL. The optimized process was validated by generating rAAVs with various serotypes and genes of interest (GOI), all of which gave production titres greater than 1×1012 VG/mL.</p><p><strong>Conclusion: </strong>We used Sf9-RVN cells to develop a fed-batch rAAV production process that replaces Sf9 cells to meet regulatory standards. This process has good applicability, and the rAAV titre can reach at least 1×1012 VG/mL, which is higher than the level of 1011 VG/mL reported in the literature.</p>","PeriodicalId":10881,"journal":{"name":"Current pharmaceutical biotechnology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143032383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Therapeutic Approach of Chitosan-loaded p-Coumaric Acid Nanoparticles to Alleviate Diabetic Nephropathy in Wister Rats.","authors":"Amalan Venkatesan, Gitanjali J, Srinivasan Kulandaivel, Asokan Balakrishnan Ramajayam, Sankar Madhavan, Vijayakumar Natesan, Sung-Jin Kim","doi":"10.2174/0113892010341665250114045145","DOIUrl":"https://doi.org/10.2174/0113892010341665250114045145","url":null,"abstract":"<p><strong>Objective: </strong>This study evaluated the renoprotective effects of p-Coumaric acid nanoparticles (PCNPs) in nephropathic rats.</p><p><strong>Methods: </strong>Six groups of male Albino Wistar rats were randomly assigned. Group 1 was the control, while Group 2 received 45 mg/kg of streptozotocin (STZ) to induce diabetic nephropathy. Groups 3, 4, and 5 received STZ (45 mg/kg) along with PCNPs at doses of 20, 40, and 80 mg/kg, respectively. Group 6 received 80 mg/kg of PCNPs without STZ. Body weight, blood glucose, insulin, hemoglobin (Hb), and glycosylated hemoglobin (HbA1c) levels were measured. Blood urea, serum creatinine, kidney antioxidant enzymes, and lipid peroxidation levels were also analyzed. Histological and immunohistochemical studies of kidney tissues were performed.</p><p><strong>Results: </strong>PCNPs (80 mg/kg) significantly reduced serum glucose, creatinine, and urea levels while increasing insulin levels and antioxidant activity in the kidneys. Histological analysis revealed that nephropathic rats exhibited cellular damage, including shrinkage of Bowman's capsule and lesions in the kidneys, along with degeneration in the Islets of Langerhans in the pancreas. PCNPs treatment restored these morphological alterations in the pancreas, liver, and kidneys to near-normal. Furthermore, nephropathic rats had elevated IL-6 and TNF-α expression in the renal tubules and glomeruli, which was reduced following PCNPs treatment.</p><p><strong>Conclusion: </strong>The findings suggest that PCNPs exhibit antihyperglycemic, antioxidant, antiglycation, and renoprotective effects in STZ-induced diabetic nephropathy.</p>","PeriodicalId":10881,"journal":{"name":"Current pharmaceutical biotechnology","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143032389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}