1.Treatment Principles and Paradigm of Diabetic Microvascular Complications Responding Specifically to Traditional Chinese Medicine
Anzhu WANG ; Xing HANG ; Lili ZHANG ; Xiaorong ZHU ; Dantao PENG ; Ying FAN ; Min ZHANG ; Wenliang LYU ; Guoliang ZHANG ; Xiai WU ; Jia MI ; Jiaxing TIAN ; Wei ZHANG ; Han WANG ; Yuan XU ; .LI PINGPING ; Zhenyu WANG ; Ying ZHANG ; Dongmei SUN ; Yi HE ; Mei MO ; Xiaoxiao ZHANG ; Linhua ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):272-279
To explore the advantages of traditional Chinese medicine (TCM) and integrative TCM-Western medicine approaches in the treatment of diabetic microvascular complications (DMC), refine key pathophysiological insights and treatment principles, and promote academic innovation and strategic research planning in the prevention and treatment of DMC. The 38th session of the Expert Salon on Diseases Responding Specifically to Traditional Chinese Medicine, hosted by the China Association of Chinese Medicine, was held in Beijing, 2024. Experts in TCM, Western medicine, and interdisciplinary fields convened to conduct a systematic discussion on the pathogenesis, diagnostic and treatment challenges, and mechanism research related to DMC, ultimately forming a consensus on key directions. Four major research recommendations were proposed. The first is addressing clinical bottlenecks in the prevention and control of DMC by optimizing TCM-based evidence evaluation systems. The second is refining TCM core pathogenesis across DMC stages and establishing corresponding "disease-pattern-time" framework. The third is innovating mechanism research strategies to facilitate a shift from holistic regulation to targeted intervention in TCM. The fourth is advancing interdisciplinary collaboration to enhance the role of TCM in new drug development, research prioritization, and guideline formulation. TCM and integrative approaches offer distinct advantages in managing DMC. With a focus on the diseases responding specifically to TCM, strengthening evidence-based support and mechanism interpretation and promoting the integration of clinical care and research innovation will provide strong momentum for the modernization of TCM and the advancement of national health strategies.
2.Expert consensus on the application of artificial intelligence in lung cancer screening, diagnosis, and treatment (2026 edition)
Wenzhao ZHONG ; Haibo WANG ; Yi HU ; Hao ZHANG ; Jigang DAI ; Junqiang FAN ; Guibin QIAO ; Fan YANG ; Jian HU ; Fengwei TAN ; Xuening YANG ; Qiang PU ; Zihao CHEN ; Hongxia TIAN ; Lunxu LIU ; Hecheng LI ; Xiaolong YAN ; Zongyang YU ; Zhenbin QIU ; Yihua SUN ; Jing HU ; Yuhang SHI ; Zhifei GUO ; Peng ZHANG ; Kezhong CHEN ; Shugeng GAO ; Yilong WU
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(06):848-856
With the continuous deepening of the concept of precision diagnosis and treatment for lung cancer, how to achieve higher efficiency and accuracy in the screening, diagnosis, and treatment pathways in clinical practice has become an important issue that urgently needs to be overcome. The current clinical difficulty lies in the fact that despite continuous advancements in imaging and molecular diagnostic technologies, there are still limitations in manual efficiency and subjective experience when it comes to massive data analysis and multi-scale feature extraction. Artificial intelligence (AI), especially algorithm systems based on deep learning, is an innovative technology capable of deeply empowering medical big data. This method utilizes algorithms such as convolutional neural networks, combined with radiomics, pathomics, and multi-modal data fusion analysis, demonstrating immense potential in early precise detection and benign-malignant differentiation of pulmonary nodules, digital pathological subtype recognition and non-invasive prediction of driver genes, precise 3D surgical planning and automatic delineation of radiotherapy target volumes, as well as dynamic risk warning during follow-up. This innovative technology provides a brand-new solution for realizing intelligent and individualized lung cancer diagnosis and treatment models. This consensus, based on the latest evidence from evidence-based medicine and combined with the development trends in the AI field and real-world clinical needs, was ultimately formed by gathering the consensus opinions of multidisciplinary experts in radiology, pathology, thoracic surgery, and other fields. The main content covers the application specifications of AI in the three core scenarios of lung cancer screening, diagnosis, and treatment, the technical standards for data collection and algorithm validation, as well as the ethical and regulatory challenges faced at the current stage. It aims to clarify the applicable boundaries of AI as a clinical auxiliary decision support tool, providing scientific guidance and standardized exploration directions for peers currently engaged in or planning to carry out AI-assisted clinical diagnosis, treatment, and translation of lung cancer.
3.5G remote robot-assisted thoracoscopic lobectomy/segmentectomy for ten patients
Fan SHEN ; Jia HUANG ; Yu TIAN ; Hanbo PAN ; Jiantao LI ; Long JIANG ; Hong GUO ; Bentong YU ; Qingquan LUO
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(06):908-912
Objective To explore the safety and feasibility of 5G remote robot-assisted thoracoscopic anatomic lobectomy and segmentectomy. Methods A retrospective analysis was conducted on patients who underwent 5G remote robot-assisted thoracoscopic anatomic lobectomy or segmentectomy between July and September 2024. The surgeries were performed collaboratively by Shanghai Chest Hospital, Affiliated Hospital of Yangzhou University, and The First Affiliated Hospital of Nanchang University. Perioperative outcomes were recorded and analyzed. Results Ten patients were included, comprising 4 anatomic lobectomies and 6 segmentectomies. The median age was 61.0 (56.0, 72.0) years. The median intraoperative bi-directional network latency was 52.5 (39.0, 54.0) ms. There were no instances of network interruption, robot-related adverse events, or conversions to open thoracotomy. The median postoperative chest tube drainage volume was 500.0 (375.0, 600.0) mL, and the median hospital stay was 5.5 (4.0, 6.0) days. No complications of Clavien-Dindo grade Ⅱor higher occurred. All patients were recurrence-free and alive during the 6-month postoperative follow-up period. Conclusion 5G remote robot-assisted thoracoscopic surgery demonstrates high safety and operational stability. This technology shows promising potential for clinical application and is worthy of further development and utilization.
4.Activation of α7nAChR optimises thermogenesis in brown adipose tissue of obese mice
Wencheng TIAN ; Sutong WANG ; Hesong FAN ; Yan LI ; Ping JIANG ; Xiao LI
Acta Universitatis Medicinalis Anhui 2026;61(7):1191-1199
ObjectiveTo investigate the mechanism by which activation of α7nicotinic acetylcholine receptors (α7nAChR) optimizes brown adipose tissue (BAT) thermogenesis in obese mice. MethodsObesity was induced in C57BL/6J mice via a high-fat diet. Fifty 8-week-old mice were randomly assigned to five groups: low-fat diet (Control), high-fat diet (HFD), high-fat diet plus a β3-adrenergic receptor agonist (HFD+β3), high-fat diet plus a β3-adrenergic receptor agonist and an α7nAChR selective agonist (HFD+β3+GTS-21), and high-fat diet plus a β3-adrenergic receptor agonist and an α7nAChR selective antagonist (HFD+β3+α-BGT). Haematoxylin and eosin (HE) staining was used to evaluate BAT morphology. Transmission electron microscopy was performed to assess mitochondrial number and lipid droplet morphology in adipocytes. ELISA was used to measure levels of tumour necrosis factor-α (TNF-α), interleukin(IL)-1β,IL-10, transforming growth factor-β (TGF-β), cyclic adenosine monophosphate (cAMP), and norepinephrine (NE). RT-qPCR was conducted to determine mRNA expression levels of vascular endothelial growth factor A (VEGF-A), nitric oxide synthase 2 (NOS2), arginase 1 (Arg1), uncoupling protein 1 (UCP1), PR domain-containing protein 16 (PRDM16), and peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α) in BAT. Immunohistochemistry was used to detect macrophage markers (CD31, CD86, and CD206). Protein expression levels of UCP1, α7nAChR, nuclear factor-κB p65(NF-κB p65), phosphorylated Janus kinase 2 (p-JAK2), and phosphorylated signal transducer and activator of transcription 3 (p-STAT3) were analyzed by Western blot. ResultsCompared with the Control group, the HFD group showed enlarged lipid droplets and reduced mitochondrial numbers in adipocytes, accompanied by increased TNF-α and IL-1β and decreased IL-10, TGF-β, Arg1, and VEGF-A (all P<0.01). Compared with the HFD+β3 group, the HFD+β3+GTS-21 group showed a smaller lipid droplet area and a higher mitochondrial number, along with reduced levels of pro-inflammatory factors, NOS2, and NF-κB p65, and increased levels of anti-inflammatory factors, Arg1, and phosphorylation of JAK2 and STAT3 (all P<0.01). ConclusionActivation of α7nAChR in combination with a β3-adrenergic receptor agonist effectively enhances thermogenesis, alleviates local adipose tissue hypoxia, and shifts the local inflammatory phenotype toward an M2-like state, thereby reducing inflammation in brown adipose tissue and improving its thermogenic capacity.
5.Peripheral Immune Response Patterns Under Vital Qi-Strengthening and Toxin-Eliminating Therapy and Their Value in Assessing Vital Qi Deficiency in Lung Cancer Metastasis: A Group-Based Trajectory Modeling
Fan XU ; Jianhui TIAN ; Yuan YAO ; Zhenyang CHENG ; Yanhong WANG ; Bin LUO ; Jialiang YAO ; Wang YAO ; Xinyi LU ; Yuchen BAO ; Xiaoyu YANG ; Youjun LIU ; Yiyang ZHOU ; Jianchun WU ; Minghua LI ; Wenfei SHI ; Yajing CUI ; Qingzhong LIU ; Yan LI ; Yun YANG
Cancer Research on Prevention and Treatment 2026;53(9):711-717
Objective On the basis of the theory of the tumor metastatic state, this work aims to explore the metastasis trajectories and peripheral immune response patterns in patients with non-small cell lung cancer (NSCLC) receiving vital qi-strengthening and toxin-eliminating therapy (Fuzheng Juandu) and reveal the value of peripheral immunity in assessing vital qi deficiency during metastasis. Methods A retrospective study design was adopted. Patients with NSCLC admitted from January 1, 2018, to October 31, 2025 were enrolled. Data on metastasis status and peripheral immune indices were collected at the follow-up time points of one, two, three, and five years. Group-based trajectory modeling was used to fit metastasis trajectories, and the independent predictors of trajectory grouping were analyzed through multifactor and multiclassification logistic regression. Results A total of 184 patients with NSCLC were included, and three different groups of metastasis trajectories were identified, namely, the low-risk stable (46.74%, n=86), low-risk rising (13.59%, n=25), and high-risk stable (39.67%, n=73) groups. Univariate analysis revealed substantial differences in peripheral immune indices among the three trajectory groups. Multivariate analysis showed that TNM stage, absolute neutrophil count, lymphocyte count, absolute monocyte count, platelet volume, SAA:CRP ratio, and NLR were independent predictors of the low-risk rising group, whereas TNM stage, absolute monocyte count, basophil count, SII, and NLR were independent predictors of the high-risk stable group. Conclusion Under Fuzheng Juandu therapy, patients with NSCLC exhibit three distinct metastasis trajectories, each
6.Potential association of serum MAO and sST2 levels with coronary slow flow and its clinical value
Xiangquan TIAN ; Peng CHEN ; Li LUO ; Zhongcai FAN
International Journal of Laboratory Medicine 2025;46(10):1167-1172
Objective To investigate the correlation between serum monoamine oxidase(MAO),soluble growth stimulation expressed gene 2(sST2)and coronary slow flow(CSF),and to evaluate their value in pre-dicting CSF risk and guiding clinical decision-making.Methods A total of 118 patients with CSF confirmed by coronary angiography from January 2022 to September Dazhu Hospital Affiliated to North Sichuan Medical College 2023 were selected as the observation group,while 120 patients with normal coronary blood flow were selected as the control group.The coronary flow velocity was assessed using the TIMI frame count(TFC).Baseline characteristics,as well as serum MAO and sST2 levels,were compared between the two groups.Multi model calibration Logistic regression analysis was used to examine the relationship between the two markers and CSF.Pearson correlation analysis was conducted to evaluate the association between the markers and TFC.The predictive efficacy of MAO and sST2 for CSF and their benefit in clinical decision-making were as-sessed using receiver operating characteristic(ROC)curve and decision curve analysis(DCA).Results(1)The levels of body mass index(BMI),smoking proportion,C-reactive protein(CRP),uric acid(UA),creati-nine(Cr),MAO,and sST2 in the observation group were all higher than those in the control group(P<0.05).(2)The TFC and mean TFC of LAD,LCX,and RCA in the observation group were higher than those in the control group(P<0.05).(3)Multivariate Logistic regression analysis suggested that serum MAO and sST2 were independent risk factors for the occurrence of CSF(OR>1,P<0.05).(4)Pearson correlation a-nalysis showed that serum MAO and sST2 levels were positively correlated with the TFC of the LAD,LCX,and RCA,as well as the mean TFC(r=0.735,0.710,0.728,0.703,r=0.727,0.669,0.684,0.705,P<0.05).(5)ROC curve revealed that the area under the curve(AUC)for predicting CSF was 0.761 of MAO,0.750 of sST2,and 0.807 of their combination.(6)DCA curve showed that the net benefit of serum MAO was greater than 0 when the threshold probability was between 0.05 and 0.70,the net benefit of serum sST2 was greater than 0 when the threshold probability was between 0.05 and 0.85,and their combined prediction yielded a greater net benefit within the threshold range of 0.40 to 0.90.Conclusion Elevated serum MAO and sST2 levels are independent risk factors for CSF.Both markers have good predictive value for CSF,and their combined detec-tion further improves predictive performance and clinical net benefit.
7.Feature of Cardiovascular-kidney-metabolic Syndrome Among Ethnic Minorities in Yunnan,China
Nuerguli TUERDI ; Xue CAO ; Yujie ZHANG ; Zixuan DONG ; Weiping LI ; Fan LI ; Xin WANG ; Congyi ZHENG ; Yixin TIAN ; Chenye CHANG ; Xuyan PEI ; Qinglan JIA ; Jialu YANG ; Zengwu WANG
Chinese Circulation Journal 2025;40(10):1022-1029
Objectives:To investigate the epidemiological characteristics and ethnic differences of cardiovascular-kidney-metabolic syndrome(CKM)among the Hani,Dai,Bai,and Lisu populations in Yunnan Province,and to provide evidence for developing effective prevention and control strategies for CKM.Methods:A cross-sectional survey was conducted among four ethnic minority groups.A total of 3 906 permanent residents aged 18 years and older were enrolled using a multistage cluster random sampling method.CKM stages(0-4)were defined based on the 2023 American Heart Association criteria,stages 3-4 were classified as advanced CKM.Descriptive statistics and chi-square tests were used to compare the prevalence of CKM stages across ethnic groups.Modified Poisson regression was applied to estimate relative risk(RR)and 95%confidence intervals(CI)for factors associated with advanced CKM.Results:The prevalence rates of CKM stage 1 and above among the Hani,Dai,Bai and Lisu ethnic groups were 80.1%,87.3%,84.8%and 67.8%,respectively.The prevalence of CKM was generally higher in males than in females,and the prevalence of CKM increased significantly with age.The Dai ethnic group had the highest prevalence of advanced CKM(24.7%,95%CI:22.1%-27.4%),while the Lisu ethnic group had the lowest prevalence of advanced CKM(13.7%,95%CI:11.5%-15.9%).Modified Poisson regression analysis showed that older age and higher body mass index were common risk factors for advanced CKM across all four ethnic groups.Additionally,except for the Lisu ethnic group,the other three ethnic groups had specific individual risk factors:among the Hani ethnic group,low educational attainment(RR=2.18,95%CI:1.12-4.25)and low income(RR=1.47,95%CI:1.00-2.18)were the primary risk factors of CKM.Among the Dai ethnic group,smoking(RR=1.60,95%CI:1.07-2.37)and a family history of cardiovascular disease(RR=1.61,95%CI:1.14-2.27)are the primary risk factors of CKM.Among the Bai ethnic group,male gender(RR=0.48,95%CI:0.29-0.79)was the primary risk factor of CKM.Conclusions:The prevalence of CKM stage 1 or higher is relatively high among the four minority ethnic groups in Yunnan province.There are significant differences in staging characteristics and primary risk factors across ethnic groups,necessitating the development of stratified,differentiated intervention strategies to achieve precise prevention and control and ethnic health equity in terms of CKM.
8.Discovery and proof-of-concept study of a novel highly selective sigma-1 receptor agonist for antipsychotic drug development.
Wanyu TANG ; Zhixue MA ; Bang LI ; Zhexiang YU ; Xiaobao ZHAO ; Huicui YANG ; Jian HU ; Sheng TIAN ; Linghan GU ; Jiaojiao CHEN ; Xing ZOU ; Qi WANG ; Fan CHEN ; Guangying LI ; Chaonan ZHENG ; Shuliu GAO ; Wenjing LIU ; Yue LI ; Wenhua ZHENG ; Mingmei WANG ; Na YE ; Xuechu ZHEN
Acta Pharmaceutica Sinica B 2025;15(10):5346-5365
Sigma-1 receptor (σ 1R) has become a focus point of drug discovery for central nervous system (CNS) diseases. A series of novel 1-phenylethan-1-one O-(2-aminoethyl) oxime derivatives were synthesized. In vitro biological evaluation led to the identification of 1a, 14a, 15d and 16d as the most high-affinity (K i < 4 nmol/L) and selective σ 1R agonists. Among these, 15d, the most metabolically stable derivative exhibited high selectivity for σ 1R in relation to σ 2R and 52 other human targets. In addition to low CYP450 inhibition and induction, 15d also exhibited high brain permeability and excellent oral bioavailability. Importantly, 15d demonstrated effective antipsychotic potency, particularly for alleviating negative symptoms and improving cognitive impairment in experimental animal models, both of which are major challenges for schizophrenia treatment. Moreover, 15d produced no significant extrapyramidal symptoms, exhibiting superior pharmacological profiles in relation to current antipsychotic drugs. Mechanistically, 15d inhibited GSK3β and enhanced prefrontal BDNF expression and excitatory synaptic transmission in pyramidal neurons. Collectively, these in vivo proof-of-concept findings provide substantial experimental evidence to demonstrate that modulating σ 1R represents a potential new therapeutic approach for schizophrenia. The novel chemical entity along with its favorable drug-like and pharmacological profile of 15d renders it a promising candidate for treating schizophrenia.
9.Therapeutic Study on The Inhibition of Neuroinflammation in Ischemic Stroke by Induced Regulatory T Cells
Tian-Fang KANG ; Ai-Qing MA ; Li-Qi CHEN ; Han GONG ; Jia-Cheng OUYANG ; Fan PAN ; Hong PAN ; Lin-Tao CAI
Progress in Biochemistry and Biophysics 2025;52(4):946-956
ObjectiveNeuroinflammation plays a crucial role in both the onset and progression of ischemic stroke, exerting a significant impact on the recovery of the central nervous system. Excessive neuroinflammation can lead to secondary neuronal damage, further exacerbating brain injury and impairing functional recovery. As a result, effectively modulating and reducing neuroinflammation in the brain has become a key therapeutic strategy for improving outcomes in ischemic stroke patients. Among various approaches, targeting immune regulation to control inflammation has gained increasing attention. This study aims to investigate the role of in vitro induced regulatory T cells (Treg cells) in suppressing neuroinflammation after ischemic stroke, as well as their potential therapeutic effects. By exploring the mechanisms through which Tregs exert their immunomodulatory functions, this research is expected to provide new insights into stroke treatment strategies. MethodsNaive CD4+ T cells were isolated from mouse spleens using a negative selection method to ensure high purity, and then they were induced in vitro to differentiate into Treg cells by adding specific cytokines. The anti-inflammatory effects and therapeutic potential of Treg cells transplantation in a mouse model of ischemic stroke was evaluated. In the middle cerebral artery occlusion (MCAO) model, after Treg cells transplantation, their ability to successfully migrate to the infarcted brain region and their impact on neuroinflammation levels were examined. To further investigate the role of Treg cells in stroke recovery, the changes in cytokine expression and their effects on immune cell interactions was analyzed. Additionally, infarct size and behavioral scores were measured to assess the neuroprotective effects of Treg cells. By integrating multiple indicators, the comprehensive evaluation of potential benefits of Treg cells in the treatment of ischemic stroke was performed. ResultsTreg cells significantly regulated the expression levels of both pro-inflammatory and anti-inflammatory cytokines in vitro and in vivo, effectively balancing the immune response and suppressing excessive inflammation. Additionally, Treg cells inhibited the activation and activity of inflammatory cells, thereby reducing neuroinflammation. In the MCAO mouse model, Treg cells were observed to accumulate in the infarcted brain region, where they significantly reduced the infarct size, demonstrating their neuroprotective effects. Furthermore, Treg cell therapy notably improved behavioral scores, suggesting its role in promoting functional recovery, and increased the survival rate of ischemic stroke mice, highlighting its potential as a promising therapeutic strategy for stroke treatment. ConclusionIn vitro induced Treg cells can effectively suppress neuroinflammation caused by ischemic stroke, demonstrating promising clinical application potential. By regulating the balance between pro-inflammatory and anti-inflammatory cytokines, Treg cells can inhibit immune responses in the nervous system, thereby reducing neuronal damage. Additionally, they can modulate the immune microenvironment, suppress the activation of inflammatory cells, and promote tissue repair. The therapeutic effects of Treg cells also include enhancing post-stroke recovery, improving behavioral outcomes, and increasing the survival rate of ischemic stroke mice. With their ability to suppress neuroinflammation, Treg cell therapy provides a novel and effective strategy for the treatment of ischemic stroke, offering broad application prospects in clinical immunotherapy and regenerative medicine.
10.Inhibition of HDAC3 Promotes Psoriasis Development in Mice Through Regulating Th17
Fan XU ; Xin-Rui ZHANG ; Yang-Chen XIA ; Wen-Ting LI ; Hao CHEN ; An-Qi QIN ; Ai-Hong ZHANG ; Yi-Ran ZHU ; Feng TIAN ; Quan-Hui ZHENG
Progress in Biochemistry and Biophysics 2025;52(4):1008-1017
ObjectiveTo investigate the influence of histone deacetylase 3 (HDAC3) on the occurrence, development of psoriasis-like inflammation in mice, and the relative immune mechanisms. MethodsHealthy C57BL/6 mice aged 6-8 weeks were selected and randomly divided into 3 groups: control group (Control), psoriasis model group (IMQ), and HDAC3 inhibitor RGFP966-treated psoriasis model group (IMQ+RGFP966). One day prior to the experiment, the back hair of the mice was shaved. After a one-day stabilization period, the mice in Control group was treated with an equal amount of vaseline, while the mice in IMQ group was treated with imiquimod (62.5 mg/d) applied topically on the back to establish a psoriasis-like inflammation model. The mice in IMQ+RGFP966 group received intervention with a high dose of the HDAC3-selective inhibitor RGFP966 (30 mg/kg) based on the psoriasis-like model. All groups were treated continuously for 5 d, during which psoriasis-like inflammation symptoms (scaling, erythema, skin thickness), body weight, and mental status were observed and recorded, with photographs taken for documentation. After euthanasia, hematoxylin-eosin (HE) staining was used to assess the effect of RGFP966 on the skin tissue structure of the mice, and skin thickness was measured. The mRNA and protein expression levels of HDAC3 in skin tissues were detected using reverse transcription real-time quantitative polymerase chain reaction (RT-qPCR) and Western blot (WB), respectively. Flow cytometry was employed to analyze neutrophils in peripheral blood and lymph nodes, CD4+ T lymphocytes, CD8+ T lymphocytes in peripheral blood, and IL-17A secretion by peripheral blood CD4+ T lymphocytes. Additionally, spleen CD4+ T lymphocyte expression of HDAC3, CCR6, CCR8, and IL-17A secretion levels were analyzed. Immunohistochemistry was used to detect the localization and expression levels of HDAC3, IL-17A, and IL-10 in skin tissues. ResultsCompared with the Control group, the IMQ group exhibited significant psoriasis-like inflammation, characterized by erythema, scaling, and skin wrinkling. Compared with the IMQ group, RGFP966 exacerbated psoriasis-like inflammatory symptoms, leading to increased hyperkeratosis. The psoriasis area and severity index (PASI) skin symptom scores were higher in the IMQ group than those in the Control group, and the scores were further elevated in the IMQ+RGFP966 group compared to the IMQ group. Skin thickness measurements showed a trend of IMQ+RGFP966>IMQ>Control. The numbers of neutrophils in the blood and lymph nodes increased sequentially in the Control, IMQ, and IMQ+RGFP966 groups, with a similar trend observed for CD4+ and CD8+ T lymphocytes in the blood. In skin tissues, compared with the Control group, the mRNA and protein levels of HDAC3 decreased in the IMQ group, but RGFP966 did not further reduce these expressions. HDAC3 was primarily located in the nucleus. Compared with the Control group, the nuclear HDAC3 content decreased in the skin tissues of the IMQ group, and RGFP966 further reduced nuclear HDAC3. Compared with the Control and IMQ groups, RGFP966 treatment decreased HDAC3 expression in splenic CD4+ and CD8+ T cells. RGFP966 treatment increased the expression of CCR6 and CCR8 in splenic CD4+ T cells and enhanced IL-17A secretion by peripheral blood and splenic CD4+ T lymphocytes. Additionally, compared with the IMQ group, RGFP966 reduced IL-10 protein levels and upregulated IL-17A expression in skin tissues. ConclusionRGFP966 exacerbates psoriatic-like inflammatory responses by inhibiting HDAC3, increasing the secretion of the cytokine IL-17A, and upregulating the expression of chemokines CCR8 and CCR6.

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