1.Application of CRISPR/Cas System in Precision Medicine for Triple-negative Breast Cancer
Hui-Ling LIN ; Yu-Xin OUYANG ; Wan-Ying TANG ; Mi HU ; Mao PENG ; Ping-Ping HE ; Xin-Ping OUYANG
Progress in Biochemistry and Biophysics 2025;52(2):279-289
Triple-negative breast cancer (TNBC) represents a distinctive subtype, characterized by the absence of estrogen receptors, progesterone receptors, and human epidermal growth factor receptor 2 (HER2). Due to its high inter-tumor and intra-tumor heterogeneity, TNBC poses significant chanllenges for personalized diagnosis and treatment. The advant of clustered regular interspaced short palindromic repeats (CRISPR) technology has profoundly enhanced our understanding of the structure and function of the TNBC genome, providing a powerful tool for investigating the occurrence and development of diseases. This review focuses on the application of CRISPR/Cas technology in the personalized diagnosis and treatment of TNBC. We begin by discussing the unique attributes of TNBC and the limitations of current diagnostic and treatment approaches: conventional diagnostic methods provide limited insights into TNBC, while traditional chemotherapy drugs are often associated with low efficacy and severe side effects. The CRISPR/Cas system, which activates Cas enzymes through complementary guide RNAs (gRNAs) to selectively degrade specific nucleic acids, has emerged as a robust tool for TNBC research. This technology enables precise gene editing, allowing for a deeper understanding of TNBC heterogeneity by marking and tracking diverse cell clones. Additionally, CRISPR facilitates high-throughput screening to promptly identify genes involved in TNBC growth, metastasis, and drug resistance, thus revealing new therapeutic targets and strategies. In TNBC diagnostics, CRISPR/Cas was applied to develop molecular diagnostic systems based on Cas9, Cas12, and Cas13, each employing distinct detection principles. These systems can sensitively and specifically detect a variety of TNBC biomarkers, including cell-specific DNA/RNA and circulating tumor DNA (ctDNA). In the realm of precision therapy, CRISPR/Cas has been utilized to identify key genes implicated in TNBC progression and treatment resistance. CRISPR-based screening has uncovered potential therapeutic targets, while its gene-editing capabilities have facilitated the development of combination therapies with traditional chemotherapy drugs, enhancing their efficacy. Despite its promise, the clinical translation of CRISPR/Cas technology remains in its early stages. Several clinical trials are underway to assess its safety and efficacy in the treatment of various genetic diseases and cancers. Challenges such as off-target effects, editing efficiency, and delivery methods remain to be addressed. The integration of CRISPR/Cas with other technologies, such as 3D cell culture systems, human induced pluripotent stem cells (hiPSCs), and artificial intelligence (AI), is expected to further advance precision medicine for TNBC. These technological convergences can offer deeper insights into disease mechanisms and facilitate the development of personalized treatment strategies. In conclusion, the CRISPR/Cas system holds immense potential in the precise diagnosis and treatment of TNBC. As the technology progresses and becomes more costs-effective, its clinical relevance will grow, and the translation of CRISPR/Cas system data into clinical applications will pave the way for optimal diagnosis and treatment strategies for TNBC patients. However, technical hurdles and ethical considerations require ongoing research and regulation to ensure safety and efficacy.
2.Expert consensus on the diagnosis and therapy of endo-periodontal lesions
Chen BIN ; Zhu YANAN ; Lin MINKUI ; Zhang YANGHENG ; Li YANFEN ; Ouyang XIANGYING ; Ge SONG ; Lin JIANG ; Pan YAPING ; Xu YAN ; Ding YI ; Ge SHAOHUA ; Chen FAMING ; Song ZHONGCHEN ; Jiang SHAOYUN ; Sun JIANG ; Luo LIJUN ; Ling JUNQI ; Chen ZHI ; Yue LIN ; Zhou XUEDONG ; Yan FUHUA
International Journal of Oral Science 2024;16(3):381-389
Endo-periodontal lesions(EPLs)involve both the periodontium and pulp tissue and have complicated etiologies and pathogenic mechanisms,including unique anatomical and microbiological characteristics and multiple contributing factors.This etiological complexity leads to difficulties in determining patient prognosis,posing great challenges in clinical practice.Furthermore,EPL-affected teeth require multidisciplinary therapy,including periodontal therapy,endodontic therapy and others,but there is still much debate about the appropriate timing of periodontal therapy and root canal therapy.By compiling the most recent findings on the etiology,pathogenesis,clinical characteristics,diagnosis,therapy,and prognosis of EPL-affected teeth,this consensus sought to support clinicians in making the best possible treatment decisions based on both biological and clinical evidence.
3.Treatment Strategies and Research Ideas of Acupuncture for Emotional Disorder in Perimenopause
Mei GENG ; Lin-Ling OUYANG ; Xiao-Kang XU ; Gui-Zhen CHEN ; Yun-Xiang XU
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(11):2912-2917
Perimenopause is a vulnerable stage for emotional disorders such as anxiety and depression,which is the result of a combination of bio-psycho-social factors,and it seriously affect the quality of life of perimenopausal women.Therefore,finding safe and effective treatments is one of the urgent problems in modern medicine.This paper summarises the etiology and treatment of emotional disorder in perimenopause in Chinese and western medicine,and on this basis,this paper discusses the clinical diagnostic and treatment strategies and research ideas of acupuncture in treating emotional disorder in perimenopause,thus providing a new idea for the prevention and treatment of emotional disorder in perimenopause.
4.Linderae Radix water extract treats diarrhea-predominant irritable bowel syndrome in rats: a serum metabolomics study.
Tao LIU ; Meng-Ling WU ; Guo-Yan DENG ; Yang HE ; Yi-Ran HE ; Gui-Ming DENG ; Lin-Qi OUYANG
China Journal of Chinese Materia Medica 2023;48(19):5356-5364
This study aims to investigate the mechanism of Linderae Radix water extract(LRWE) in the prevention and treatment of diarrhea-predominant irritable bowel syndrome(IBS-D) based on serum metabolomics. Eighteen 2-week-old male SD rats were randomized into control, IBS-D model, and LRWE groups. The rats in other groups except the control group received gavage of senna concentrate combined with restraint stress for the modeling of IBS-D. The rats in the LRWE group were administrated with LRWE(5.4 g·kg~(-1)) by gavage, and those in the control and IBS-D model groups with an equal volume of distilled water for a total of 14 days. The visceral sensitivity was evaluated by the abdominal withdrawal reflex(AWR) score, and the degree of diarrhea was assessed by the fecal water content(FWC). The morphological changes of the colon and the morphology and number of goblet cells were observed by hematoxylin-eosin(HE) and periodic acid-schiff(PAS) staining, respectively. Ultra-high performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS) was used for the screening of the potential biomarkers in the rat serum and their related metabolic pathways. The results showed that LRWE reduced the AWR score, decreased FWC, and alleviated visceral sensitivity and diarrhea symptoms in IBS-D rats. HE and PAS staining showed that LRWE mitigated low-grade intestinal inflammation and increased the number of mature secretory goblet cells in the colonic epithelium of IBS-D rats. A total of 25 potential biomarkers of LRWE in treating IBS-D were screened out in this study, which were mainly involved in riboflavin, tryptophan, glycine, serine and threonine metabolism, glyoxylate and dicarboxylate metabolism, and cysteine and methionine metabolism. The regulatory effects were the most significant on the riboflavin and tryptophan metabolism pathways. LRWE may alleviate the visceral hypersensitivity by promoting energy metabolism and amino acid metabolism, enhancing intestinal barrier function, and improving intestinal immune function in IBS-D rats.
Rats
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Male
;
Animals
;
Irritable Bowel Syndrome/metabolism*
;
Water
;
Chromatography, Liquid
;
Tryptophan
;
Rats, Sprague-Dawley
;
Tandem Mass Spectrometry
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Diarrhea/drug therapy*
;
Biomarkers
;
Riboflavin
5.Identification of Cordyceps cicadae and Tolypocladium dujiaolongae based on ITS sequences and chemical pattern recognition method.
Xiao-Cui HE ; Jing-Qiong WAN ; Yi-Ling ZHU ; Yuan WEI ; Heng-Lin CUI ; Bin YANG ; Zhen OUYANG
China Journal of Chinese Materia Medica 2022;47(2):403-411
Based on ITS sequences, the molecular identification of Cordyceps cicadae and Tolypocladium dujiaolongae was carried out, and high-performance liquid chromatography(HPLC) fingerprint combined with chemical pattern recognition method was established to differentiate C. cicadae from its adulterant T. dujiaolongae. The genomic DNA from 10 batches of C. cicadae and five batches of T. dujiaolongae was extracted, and ITS sequences were amplified by PCR and sequenced. The stable differential sites of these two species were compared and the phylogenetic tree was constructed via MEGA 7.0. HPLC was used to establish the fingerprints of C. cicadae and T. dujiaolongae, and similarity evaluation, cluster analysis(CA), principal component analysis(PCA), and partial least squares discriminant analysis(PLS-DA) were applied to investigate the chemical pattern recognition. The result showed that the sources of these two species were different, and there were 115 stable differential sites in ITS sequences of C. cicadae and T. dujiao-longae. The phylogenetic tree could distinguish them effectively. HPLC fingerprints of 18 batches of C. cicadae and 5 batches of T. dujiaolongae were established. The results of CA, PCA, and PLS-DA were consistent, which could distinguish them well, indicating that there were great differences in chemical components between C. cicadae and T. dujiaolongae. The results of PLS-DA showed that six components such as uridine, guanosine, adenosine, and N~6-(2-hydroxyethyl) adenosine were the main differential markers of the two species. ITS sequences and HPLC fingerprint combined with the chemical pattern recognition method can serve as the identification and differentiation methods for C. cicadae and T. dujiaolongae.
Chromatography, High Pressure Liquid/methods*
;
Cordyceps/genetics*
;
Hypocreales
;
Phylogeny
6.Professor
Lin-Ling OUYANG ; Xiao-Feng WU ; Hong-Yuan LIU ; Gui-Zhen CHEN ; Yun-Xiang XU
Chinese Acupuncture & Moxibustion 2021;41(3):316-320
Professor
Acupuncture
;
Acupuncture Points
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Acupuncture Therapy
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Catgut
;
Humans
;
Panic Disorder/therapy*
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Perimenopause
7.Research progress on anti-tumor effect of Chinese dragon's blood.
Ying-Ying TIAN ; Ai-Lin YANG ; Xiao-Nan CHEN ; Jia-Qi LI ; Lei-Meng-Yuan TANG ; Hui-Ming HUANG ; Ya-Xin LIU ; Hai-Ling QIU ; Li-Shan OUYANG ; Jun LI ; Peng-Fei TU ; Zhong-Dong HU
China Journal of Chinese Materia Medica 2021;46(8):2037-2044
As a traditional Chinese medicine, Chinese dragon's blood has multiple effects, such as activating blood to remove blood stasis, softening and dispelling stagnation, astringent and hemostasis, clearing swelling and relieving pain, regulating menstruation and rectifying the blood, so it is called "an effective medicine of promoting blood circulation". It has been widely used clinically to treat a variety of diseases. With the further research on Chinese dragon's blood, its anti-tumor medicinal value is gradually emerging. Modern pharmacological studies have shown that Chinese dragon's blood exerts anti-tumor effects mainly by inhibiting cell proliferation, inducing apoptosis, inducing DNA damage and cell cycle arrest, inducing senescence and autophagy of tumor cells, inhibiting metastasis and angiogenesis, as well as reversing multidrug resistance. This article focuses on the research progress on anti-tumor effects of Chinese dragon's blood extract and its chemical components, with a view to provide new references for the in-depth research and reasonable utilization of Chinese dragon's blood.
China
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Dracaena
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Female
;
Plant Extracts
;
Resins, Plant
8.Mechanism of Qingke Pingchuan Granule in Treatment of Acute and Chronic Bronchitis Complicated with Chronic Obstructive Pulmonary Disease: An Exploration Based on Network Pharmacology
Tian-quan WANG ; Jun-ling CAO ; Jin-tao HU ; Ling-yan DONG ; Jing-feng OUYANG ; Mei-jiao LIN
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(18):160-168
Objective:To explore the potential mechanism of Qingke Pingchuan granule in treating acute and chronic bronchitis complicated with chronic obstructive pulmonary disease (COPD) by network pharmacology. Method:The Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) was retrieved to collect the active components of Qingke Pingchuan granule and predict the action targets, followed by the construction of component-target network using Cytoscape 3.8. GeneCards, Online Mendelian Inheritance in Man(OMIM), and DrugBank were used to harvest disease targets, whose names were put into UniProt for standardization. The treatment targets of Qingke Pingchuan Granule against the two diseases were obtained based on Venn diagram, which were then imported into the STRING platform for constructing the protein-protein interaction (PPI) network. Following the gene ontology(GO) and Kyoto encyclopedia of genes and genomes(KEGG) pathway enrichment analysis based on MetaScape, the active component-common target-signaling pathway network of Qingke Pingchuan granule against acute and chronic bronchitis complicated with COPD was finally constructed. The accuracy of the target was confirmed by literature. Result:A total of 165 active components, 374 related targets, 512 disease-related targets, and 130 common targets were obtained. Among them, the 14 core therapeutic targets were further subjected to GO enrichment analysis, which yielded 390 biological processes, nine cell components, and 23 molecular functions. The KEGG pathway analysis revealed 22 signaling pathways. Conclusion:Qingke Pingchuan granule alleviates the diseases possibly by regulating such targets as vascular endothelial growth factor receptor 2(KDR), transforming growth factor beta-1 (TGF-
9.Best practices on immunomodulators and biologic agents for ulcerative colitis and Crohn's disease in Asia
Choon Jin OOI ; Ida HILMI ; Rupa BANERJEE ; Sai Wei CHUAH ; Siew Chien NG ; Shu Chen WEI ; Govind K MAKHARIA ; Pises PISESPONGSA ; Min Hu CHEN ; Zhi Hua RAN ; Byong Duk YE ; Dong Il PARK ; Khoon Lin LING ; David ONG ; Vineet AHUJA ; Khean Lee GOH ; Jose SOLLANO ; Wee Chian LIM ; Wai Keung LEUNG ; Raja Affendi Raja ALI ; Deng Chyang WU ; Evan ONG ; Nazri MUSTAFFA ; Julajak LIMSRIVILAI ; Tadakazu HISAMATSU ; Suk Kyun YANG ; Qin OUYANG ; Richard GEARY ; Janaka H DE SILVA ; Rungsun RERKNIMITR ; Marcellus SIMADIBRATA ; Murdani ABDULLAH ; Rupert WL LEONG ;
Intestinal Research 2019;17(3):285-310
The Asia-Pacific Working Group on inflammatory bowel disease (IBD) was established in Cebu, Philippines, under the auspices of the Asian Pacific Association of Gastroenterology with the goal of improving IBD care in Asia. This consensus is carried out in collaboration with Asian Organization for Crohn's and Colitis. With biologic agents and biosimilars becoming more established, it is necessary to conduct a review on existing literature and establish a consensus on when and how to introduce biologic agents and biosimilars in the conjunction with conventional treatments for ulcerative colitis (UC) and Crohn's disease (CD) in Asia. These statements also address how pharmacogenetics influence the treatments of UC and CD and provide guidance on response monitoring and strategies to restore loss of response. Finally, the review includes statements on how to manage treatment alongside possible hepatitis B and tuberculosis infections, both common in Asia. These statements have been prepared and voted upon by members of IBD workgroup employing the modified Delphi process. These statements do not intend to be all-encompassing and future revisions are likely as new data continue to emerge.
Adalimumab
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Asia
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Asian Continental Ancestry Group
;
Biological Factors
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Biosimilar Pharmaceuticals
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Colitis
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Colitis, Ulcerative
;
Consensus
;
Cooperative Behavior
;
Crohn Disease
;
Gastroenterology
;
Hepatitis B
;
Humans
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Immunologic Factors
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Inflammatory Bowel Diseases
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Infliximab
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Pharmacogenetics
;
Philippines
;
Practice Guidelines as Topic
;
Tuberculosis
;
Ulcer
10.Clinical analysis of 23 patients pathologically diagnosed with primary and secondary pulmonary enteric adenocarcinoma
Gu LEI ; Wang XU-ZHOU ; Wen WEN ; Lin JING ; Chen XI-FANG ; Lai GUO-XIANG ; Chen LU ; Ouyang XIAO-JUAN ; Zhang LEI ; Ye JIA ; Liu YUE-BIN ; Zeng DE-HUA ; Liu DE-LING ; Liu WEI
Chinese Medical Journal 2019;132(11):1368-1369

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