1.Strategic Optimization of CHO Cell Expression Platforms for Biopharmaceutical Manufacturing
Rui-Ming ZHANG ; Meng-Lin LI ; Hong-Wei ZHU ; Xing-Xiao ZHANG
Progress in Biochemistry and Biophysics 2026;53(2):327-341
Chinese hamster ovary (CHO) cells are the most established and versatile mammalian expression system for the large-scale production of recombinant therapeutic proteins, owing to their genetic stability, adaptability to serum-free suspension culture, and ability to perform human-like post-translational modifications. More than 70% of biologics approved by the U.S. Food and Drug Administration rely on CHO-based production platforms, underscoring their central role in modern biopharmaceutical manufacturing. Despite these advantages, CHO systems continue to face three persistent bottlenecks that limit their potential for high-yield, reproducible, and cost-efficient production: excessive metabolic burden during high-density culture, heterogeneity of glycosylation patterns, and progressive loss of long-term expression stability. This review provides an integrated analysis of recent advances addressing these challenges and proposes a forward-looking framework for constructing intelligent and sustainable CHO cell factories. In terms of metabolic regulation, excessive lactate and ammonia accumulation disrupts energy balance and reduces recombinant protein synthesis efficiency. Optimization of culture parameters such as temperature, pH, dissolved oxygen, osmolarity, and glucose feeding can effectively alleviate metabolic stress, while supplementation with modulators including sodium butyrate, baicalein, and S-adenosylmethionine promotes specific productivity (qP) by modulating apoptosis and chromatin structure. Furthermore, genetic engineering strategies—such as overexpression of MPC1/2, HSP27, and SIRT6 or knockout of Bax, Apaf1, and IGF-1R—have demonstrated significant improvements in cell viability and product yield. The combination of multi-omics metabolic modeling with artificial intelligence (AI)-based prediction offers new opportunities for building self-regulating CHO systems capable of dynamic adaptation to environmental stress. Regarding glycosylation uniformity, which determines therapeutic efficacy and immunogenicity, gene editing-based glycoengineering (e.g., FUT8 knockdown or ST6Gal1 overexpression) has enabled the humanization of CHO glycan profiles, minimizing non-human sugar residues and enhancing drug stability. Process-level strategies such as galactose or manganese co-feeding and fine control of temperature or osmolarity further allow rational regulation of glycosyltransferase activity. Additionally, in vitro chemoenzymatic remodeling provides a complementary route to construct human-type glycans with defined structures, though industrial applications remain constrained by cost and scalability. The integration of model-driven process design and AI feedback control is expected to enable real-time prediction and correction of glycosylation deviations, ensuring batch-to-batch consistency in continuous biomanufacturing. Long-term expression stability, another critical challenge, is often impaired by promoter silencing, chromatin condensation, and random genomic integration. Molecular optimization—such as the use of improved promoters (CMV, EF-1α, or CHO endogenous promoters), Kozak and signal peptide refinement, and incorporation of chromatin-opening elements (UCOE, MAR, STAR)—helps maintain durable transcriptional activity, while site-specific integration systems including Cre/loxP, Flp/FRT, φC31, and CRISPR/Cas9 can enable single-copy, position-independent gene insertion at genomic safe-harbor loci, ensuring stable, predictable expression. Collectively, this review highlights a paradigm shift in CHO system optimization driven by the convergence of genome editing, synthetic biology, and artificial intelligence. The transition from empirical optimization to rational, data-driven design will facilitate the development of programmable CHO platforms capable of autonomous regulation of metabolic flux, glycosylation fidelity, and transcriptional activity. Such intelligent cell factories are expected to accelerate the transformation from laboratory-scale research to industrial-scale, high-consistency, and economically sustainable biopharmaceutical manufacturing, thereby supporting the next generation of efficient and customizable biologics manufacturing.
2.Strategic Optimization of CHO Cell Expression Platforms for Biopharmaceutical Manufacturing
Rui-Ming ZHANG ; Meng-Lin LI ; Hong-Wei ZHU ; Xing-Xiao ZHANG
Progress in Biochemistry and Biophysics 2026;53(2):327-341
Chinese hamster ovary (CHO) cells are the most established and versatile mammalian expression system for the large-scale production of recombinant therapeutic proteins, owing to their genetic stability, adaptability to serum-free suspension culture, and ability to perform human-like post-translational modifications. More than 70% of biologics approved by the U.S. Food and Drug Administration rely on CHO-based production platforms, underscoring their central role in modern biopharmaceutical manufacturing. Despite these advantages, CHO systems continue to face three persistent bottlenecks that limit their potential for high-yield, reproducible, and cost-efficient production: excessive metabolic burden during high-density culture, heterogeneity of glycosylation patterns, and progressive loss of long-term expression stability. This review provides an integrated analysis of recent advances addressing these challenges and proposes a forward-looking framework for constructing intelligent and sustainable CHO cell factories. In terms of metabolic regulation, excessive lactate and ammonia accumulation disrupts energy balance and reduces recombinant protein synthesis efficiency. Optimization of culture parameters such as temperature, pH, dissolved oxygen, osmolarity, and glucose feeding can effectively alleviate metabolic stress, while supplementation with modulators including sodium butyrate, baicalein, and S-adenosylmethionine promotes specific productivity (qP) by modulating apoptosis and chromatin structure. Furthermore, genetic engineering strategies—such as overexpression of MPC1/2, HSP27, and SIRT6 or knockout of Bax, Apaf1, and IGF-1R—have demonstrated significant improvements in cell viability and product yield. The combination of multi-omics metabolic modeling with artificial intelligence (AI)-based prediction offers new opportunities for building self-regulating CHO systems capable of dynamic adaptation to environmental stress. Regarding glycosylation uniformity, which determines therapeutic efficacy and immunogenicity, gene editing-based glycoengineering (e.g., FUT8 knockdown or ST6Gal1 overexpression) has enabled the humanization of CHO glycan profiles, minimizing non-human sugar residues and enhancing drug stability. Process-level strategies such as galactose or manganese co-feeding and fine control of temperature or osmolarity further allow rational regulation of glycosyltransferase activity. Additionally, in vitro chemoenzymatic remodeling provides a complementary route to construct human-type glycans with defined structures, though industrial applications remain constrained by cost and scalability. The integration of model-driven process design and AI feedback control is expected to enable real-time prediction and correction of glycosylation deviations, ensuring batch-to-batch consistency in continuous biomanufacturing. Long-term expression stability, another critical challenge, is often impaired by promoter silencing, chromatin condensation, and random genomic integration. Molecular optimization—such as the use of improved promoters (CMV, EF-1α, or CHO endogenous promoters), Kozak and signal peptide refinement, and incorporation of chromatin-opening elements (UCOE, MAR, STAR)—helps maintain durable transcriptional activity, while site-specific integration systems including Cre/loxP, Flp/FRT, φC31, and CRISPR/Cas9 can enable single-copy, position-independent gene insertion at genomic safe-harbor loci, ensuring stable, predictable expression. Collectively, this review highlights a paradigm shift in CHO system optimization driven by the convergence of genome editing, synthetic biology, and artificial intelligence. The transition from empirical optimization to rational, data-driven design will facilitate the development of programmable CHO platforms capable of autonomous regulation of metabolic flux, glycosylation fidelity, and transcriptional activity. Such intelligent cell factories are expected to accelerate the transformation from laboratory-scale research to industrial-scale, high-consistency, and economically sustainable biopharmaceutical manufacturing, thereby supporting the next generation of efficient and customizable biologics manufacturing.
3.Conflicts Between the Application of Artificial Intelligence and the Inheritance of Traditional Chinese Medicine Academic Thought and the Corresponding Strategies
Jinxiao LIANG ; Rui LI ; Ruixia ZHAO ; Hongyan CUI ; Xing YANG ; Xuehan WANG ; Rui REN ; Zhongqi JIANG ; Mingyi SHAO
Journal of Traditional Chinese Medicine 2026;67(19):2037-2041
Under the current upsurge of cross-disciplinary research between artificial intelligence (AI) and traditional Chinese medicine (TCM), the inheritance of academic thought in TCM is confronted with the deep-seated predicament of cognitive paradigm dislocation. The existing AI model is based on the classical reasoning mode of formal logic and statistical probability, which is difficult to adapt to the nonlinear and holistic cognitive logic of TCM with image-based thinking and syndrome-differentiated treatment as the core, resulting in systematic misreading and loss of the core essence in digital inheritance. Based on this, this paper proposes to construct a new cognitive model oriented towards the context of TCM. Its essence is not to have AI imitate the thinking of TCM, but to establish an auxiliary understanding framework based on semantic mapping and relational reasoning. It is advocated that the role of AI should be reconstructed from a knowledge substitute to a clinical interactor, and its application boundary in the inheritance of TCM wisdom should be clarified. By establishing the theoretical framework and practical path of human-computer collaboration, this paper aims to provide a scientific basis for realizing the deep integration of AI technology and the academic thought in TCM.
4.Conflicts Between the Application of Artificial Intelligence and the Inheritance of Traditional Chinese Medicine Academic Thought and the Corresponding Strategies
Jinxiao LIANG ; Rui LI ; Ruixia ZHAO ; Hongyan CUI ; Xing YANG ; Xuehan WANG ; Rui REN ; Zhongqi JIANG ; Mingyi SHAO
Journal of Traditional Chinese Medicine 2026;67(19):2037-2041
Under the current upsurge of cross-disciplinary research between artificial intelligence (AI) and traditional Chinese medicine (TCM), the inheritance of academic thought in TCM is confronted with the deep-seated predicament of cognitive paradigm dislocation. The existing AI model is based on the classical reasoning mode of formal logic and statistical probability, which is difficult to adapt to the nonlinear and holistic cognitive logic of TCM with image-based thinking and syndrome-differentiated treatment as the core, resulting in systematic misreading and loss of the core essence in digital inheritance. Based on this, this paper proposes to construct a new cognitive model oriented towards the context of TCM. Its essence is not to have AI imitate the thinking of TCM, but to establish an auxiliary understanding framework based on semantic mapping and relational reasoning. It is advocated that the role of AI should be reconstructed from a knowledge substitute to a clinical interactor, and its application boundary in the inheritance of TCM wisdom should be clarified. By establishing the theoretical framework and practical path of human-computer collaboration, this paper aims to provide a scientific basis for realizing the deep integration of AI technology and the academic thought in TCM.
5.Traditional Chinese Medicine Prevents and Treats Ulcerative Colitis via TLR4/NF-κB Signaling Pathway: A Review
Xi CUI ; Wenke DU ; Xing SHEN ; Cuicui LIU ; Rui ZHAI ; Hanghang LI ; Shuxun SHI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(21):284-294
Ulcerative colitis (UC) is a chronic inflammatory bowel disease primarily affecting the colon and rectum. With a rising incidence, UC has aroused an increasingly serious public health concern. The etiology and pathogenesis of UC are complex, involving genetic susceptibility, intestinal barrier dysfunction, immune dysregulation, and environmental factors such as diet, smoking, and infection. Current UC therapies face limitations including persistent drug resistance, multiple side effects, and compromised immune function, necessitating the exploration of novel intervention strategies. In recent years, with the continuous advancement of research into UC mechanisms, the Toll-like receptor 4 (TLR4)/nuclear factor-κB (NF-κB) signaling pathway has been revealved as one of the classical pathways involved in inflammation. Being crucial for maintaining intestinal homeostasis, this pathway regulates inflammatory and immune responses by controlling gene transcription, thereby playing a significant role in the occurrence and progression of UC. However, systematic summarization within this field remains lacking. Traditional Chinese medicine (TCM) possesses unique advantages through its multi-target, multi-pathway, and multi-mechanism approaches, being capable of curbing the pathological progression of UC by targeting key molecules in the TLR4/NF-κB signaling pathway. This paper systematically summarizes the mechanisms by which TLR4/NF-κB-related pathways regulate UC, primarily encompassing inflammatory responses, oxidative stress, immune balance, and gut microbiota. It reviews single herbs (e.g., Rosa roxburghii root and Saposhnikoviae Radix), active components (e.g., resveratrol, Tripterygium glycosides, and gypenosides), herbal extracts (e.g., Zingiberis Rhizoma extract and Taraxaci Herba extract), and compound formulas for clearing heat and removing dampness, invigorating the spleen and warming the kidneys, clearing heat and detoxifying, harmonizing the liver and spleen, and treating cold and heat in complexity (e.g., Huaihua Powder, Shenling Baizhu Powder, and Jiedu Huayu Formula). The aim is to fully leverage the advantages of TCM in UC treatment and provide novel insights for clinical and pharmacological research on UC.
6.Traditional Chinese Medicine Prevents and Treats Ulcerative Colitis via TLR4/NF-κB Signaling Pathway: A Review
Xi CUI ; Wenke DU ; Xing SHEN ; Cuicui LIU ; Rui ZHAI ; Hanghang LI ; Shuxun SHI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(21):284-294
Ulcerative colitis (UC) is a chronic inflammatory bowel disease primarily affecting the colon and rectum. With a rising incidence, UC has aroused an increasingly serious public health concern. The etiology and pathogenesis of UC are complex, involving genetic susceptibility, intestinal barrier dysfunction, immune dysregulation, and environmental factors such as diet, smoking, and infection. Current UC therapies face limitations including persistent drug resistance, multiple side effects, and compromised immune function, necessitating the exploration of novel intervention strategies. In recent years, with the continuous advancement of research into UC mechanisms, the Toll-like receptor 4 (TLR4)/nuclear factor-κB (NF-κB) signaling pathway has been revealved as one of the classical pathways involved in inflammation. Being crucial for maintaining intestinal homeostasis, this pathway regulates inflammatory and immune responses by controlling gene transcription, thereby playing a significant role in the occurrence and progression of UC. However, systematic summarization within this field remains lacking. Traditional Chinese medicine (TCM) possesses unique advantages through its multi-target, multi-pathway, and multi-mechanism approaches, being capable of curbing the pathological progression of UC by targeting key molecules in the TLR4/NF-κB signaling pathway. This paper systematically summarizes the mechanisms by which TLR4/NF-κB-related pathways regulate UC, primarily encompassing inflammatory responses, oxidative stress, immune balance, and gut microbiota. It reviews single herbs (e.g., Rosa roxburghii root and Saposhnikoviae Radix), active components (e.g., resveratrol, Tripterygium glycosides, and gypenosides), herbal extracts (e.g., Zingiberis Rhizoma extract and Taraxaci Herba extract), and compound formulas for clearing heat and removing dampness, invigorating the spleen and warming the kidneys, clearing heat and detoxifying, harmonizing the liver and spleen, and treating cold and heat in complexity (e.g., Huaihua Powder, Shenling Baizhu Powder, and Jiedu Huayu Formula). The aim is to fully leverage the advantages of TCM in UC treatment and provide novel insights for clinical and pharmacological research on UC.
7.Oral Chinese patent medicines in treatment of dysmenorrhea and clinical research status: a scoping review.
Xiao-Jun BU ; Zhi-Ran LI ; Wen-Ya WANG ; Rui-Xue LIU ; Jing-Yu REN ; Lin XU ; Xing LIAO ; Wei-Wei SUN
China Journal of Chinese Materia Medica 2025;50(3):787-797
A scoping review was performed to systematically search and summarize the clinical research in the treatment of dysmenorrhea with oral Chinese patent medicines. The oral Chinese patent medicines for treating dysmenorrhea in three major drug lists, guidelines, and textbooks were screened, and the relevant clinical trials were retrieved from eight Chinese and English databases. The key information of the included trials was extracted and visually analyzed. A total of 50 Chinese patent medicines were included, among which oral Chinese patent medicines for the dysmenorrhea patients with the syndrome of Qi stagnation and blood stasis accounted for the highest proportion, and the average daily cost varied greatly among Chinese patent medicines. A total of 150 articles were included, involving 22 Chinese patent medicines, among which Guizhi Fuling Capsules/Pills, Sanjie Zhentong Capsules, and Dan'e Fukang Soft Extract were the most frequently studied. These articles mainly reported randomized controlled trial(RCT), which mainly focused on the comparison of the intervention effect between Chinese patent medicines combined with western medicine and western medicine alone, and the sample size was generally 51-100 cases. The high-frequency outcome indicators belonged to nine domains such as effective rate, adverse reactions, and laboratory examinations. This study showed that oral Chinese patent medicines had advantages in the treatment of dysmenorrhea, and the annual number of related clinical trials showed an overall growing trend. However, there were still problems such as insufficient safety information and vague description of traditional Chinese medicine(TCM) syndromes types in the instructions of Chinese patent medicines. The available clinical research had shortcomings such as uneven distribution of Chinese patent medicines, limited research scale, poor methodological rigor, and insufficient standardization of outcome indicators. In the future, it is necessary to deepen the development of high-quality clinical research and improve the contents of the instructions to ensure the effectiveness and safety of the clinical application of oral Chinese patent medicines in the treatment of dysmenorrhea.
Dysmenorrhea/drug therapy*
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Humans
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Drugs, Chinese Herbal/administration & dosage*
;
Female
;
Administration, Oral
;
Nonprescription Drugs/administration & dosage*
8.Medicinal properties and compatibility application of aromatic traditional Chinese medicine monomer components based on action of volatile components against viral pneumonia.
Yin-Ming ZHAO ; Lin-Yuan WANG ; Jian-Jun ZHANG ; Chun WANG ; Yi LI ; Xiao-Fang WU ; Qi ZHANG ; Xing-Yu ZHAO ; Lin-Ze LI ; Rui-Lin LYU
China Journal of Chinese Materia Medica 2025;50(8):2013-2021
Aromatic traditional Chinese medicine(TCM) has played an important role against epidemics and viruses, and volatile components are the main components that exert the pharmacological effects of aromatic TCM. By screening the related monomer components in aromatic TCM against epidemic and viruses and analyzing and endowing TCM with medicinal properties based on its clinical application and pharmacological research according to the theoretical thinking of TCM, the key technical issues of compatibility of TCM monomer components were solved from a theoretical perspective, providing new ideas and methods for screening raw materials and formulas for the development of new TCM drugs. Based on the conditions of antiviral activity, clinical application foundation, definite therapeutic effect, and high safety, a gradient screening of aromatic TCM was carried out. Firstly, 30 aromatic TCM were screened from anti-epidemic literature and clinical trial formulas, and seven volatile monomers were further screened from them. Then, four monomer components with significant effects, namely patchouli alcohol, carvacrol, p-cymene, and eucalyptol were screened. By adopting the "four-step method for a systematic study of TCM properties", the four monomer components were endowed with medicinal properties, and compatibility and combination studies were conducted to explore the theoretical basis of monomer formulas and form monomer formulas guided by TCM theory. The screening results of volatile monomers in aromatic TCM against viral pneumonia included patchouli alcohol, carvacrol, p-cymene, and eucalyptol. The medicinal properties and compatibility theory of volatile monomer components in TCM were explored. Patchouli alcohol was the main herb, with a cool and pungent nature. It entered the lung meridian to dispel evil Qi and has the effects of aromatization, detoxification, and epidemic prevention. Carvacrol was a minister drug with a cool and pungent taste. It had the effects of aromatizing, moistening, and dissolving the exterior, as well as strengthening the spleen and stomach. p-Cymene was an adjunctive medicine with a mild and pungent nature. It entered the lungs and kidneys and had the effects of aromatic purification, cough relief, and asthma relief. Eucalyptol was also an adjunctive medicine with a pungent and warm taste. It had the functions of aromatic purification, cough relief, phlegm reduction, and pain relief. The combination of the four medicines had the effects of aromatizing, moistening, detoxifying, and epidemic prevention, as well as relieving cough and asthma and strengthening the spleen and stomach. They were used to treat viral pneumonia caused by upper respiratory tract viral infections, with symptoms such as chest tightness, cough, wheezing, fatigue, nasal congestion, runny nose, nausea, and vomiting. This study has laid a literature and theoretical foundation for further drug efficacy verification experiments, compatibility efficacy experiments, and subsequent product development and clinical applications, and it serves as an innovative practice that combines literature research, theoretical research, experimental research, and clinical practice to develop new products.
Drugs, Chinese Herbal/therapeutic use*
;
Antiviral Agents/pharmacology*
;
Humans
;
Pneumonia, Viral/virology*
;
Medicine, Chinese Traditional
;
Volatile Organic Compounds/pharmacology*
;
Animals
9.CURRENT DISTRIBUTION OF AEDES AEGYPTI IN LEIZHOU PENINSULA,ZHANJIANG CITY,GUANGDONG PROVINCE
Rui-Peng LU ; Jin-Hua DUAN ; Yu-Wen ZHONG ; Hui DENG ; Jun WU ; Li-Ping LIU ; Wei-Xiong YIN ; Feng XING ; Hui HUANG ; Chang-Jie FU ; Zong-Jing CHEN ; Ming-Ji CHENG ; Sheng-Jun HU ; Ya-Ting CHEN ; Wen-Ting GUO ; Li-Feng LIN
Acta Parasitologica et Medica Entomologica Sinica 2025;32(1):16-21
Objective To investigate the status of population dynamics and distribution changes of Aedes aegypti in Guangdong Province.Methods Continuous monitoring was conducted from May 2018 to July 2024 in Wushi Town and Qishui Town,Leizhou City,Zhanjiang City,Guangdong Province.Additionally,a survey of the distribution of Ae.aegypti along the Leizhou Peninsula coast was carried out.Results The density of Ae.aegypti in Zhanjiang showed a gradual decline from 2018 to 2024.The last detection of adult Ae.aegypti in Wushi Town was in September 2021,and the last larva was found in October 2023.No Ae.aegypti was detected in Qishui Town during surveys from 2021 to 2024.A survey of 18 coastal villages in the Leizhou Peninsula revealed no detections of Ae.aegypti.Conclusions This study provides a basis for understanding the distribution and population density fluctuations of Ae.aegypti,assessing its invasion risk,and scientifically conducting relevant prevention and control efforts.
10.Relationship of immune response with intestinal flora and metabolic reprogramming in patients with non-small cell lung cancer.
Rui GUO ; Zhe HE ; Fan LIU ; Hui-Zhen PENG ; Li-Wei XING
Acta Physiologica Sinica 2025;77(2):289-299
Numerous research conducted in recent years has revealed that gut microbial dysbiosis, such as modifications in composition and activity, might influence lung tissue homeostasis through specific pathways, thereby promoting susceptibility to lung diseases. The development and progression of lung cancer, as well as the effectiveness of immunotherapy are closely associated with gut flora and metabolites, which influence immunological and inflammatory responses. During abnormal proliferation, non-small cell lung cancer cells acquire more substances and energy by altering their own metabolic pathways. Glucose and amino acid metabolism reprogramming provide tumor cells with abundant ATP, carbon, and nitrogen sources, respectively, providing optimal conditions for tumor cell proliferation, invasion, and immune escape. This article reviews the relationship of immune response with gut flora and metabolic reprogramming in non-small cell lung cancer, and discusses the potential mechanisms by which gut flora and metabolic reprogramming affect the occurrence, development, and immunotherapy of non-small cell lung cancer, in order to provide new ideas for precision treatment of lung cancer patients.
Humans
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Gastrointestinal Microbiome/immunology*
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Carcinoma, Non-Small-Cell Lung/therapy*
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Lung Neoplasms/therapy*
;
Immunotherapy
;
Metabolic Reprogramming

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