1.Role of Macrophage Activation and Polarization in Diabetes Mellitus and Its Related Complications and Traditional Chinese Medicine Intervention
Zhichao CHEN ; Qiaoni LIN ; Liya SUN ; Jinxi WANG ; Zishan FU ; Yufeng YANG ; Yan SHI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(6):311-320
The occurrence of diabetes mellitus (DM) is closely related to insulin resistance and islet β cell dysfunction. Modern studies have found that macrophages are widely present in the liver,fat,skeletal muscle,islets, and other tissues and organs. Macrophage M1/M2 polarization plays an important role in the occurrence and development of diabetes mellitus and its related complications by intervening in inflammatory response,improving insulin resistance,and promoting tissue repair. Most of the traditional Chinese medicines that regulate the activation and polarization of macrophages are Qi-replenishing and Yin-nourishing,heat-clearing, and detoxicating medicinal,which are consistent with the etiology and pathogenesis of diabetes and its related complications. Therefore,by summarizing the mechanisms between macrophage activation,polarization, and insulin resistance in various tissues,this paper reviewed traditional Chinese medicine and its effective components and compounds in improving diabetes mellitus and its related complications through multi-channel regulation of macrophage polarization and regulation of M1/M2 ratio,providing references for the future treatment of DM and its related complications with traditional Chinese medicine.
2.Effects of peripheral blood-derived exosomes intervened by Naozhenning on injury of neuron induced by microglia
Li GAO ; Le ZHAO ; Liya WU ; Weiyi ZHANG ; Nan LI ; Nannan WEI ; Yonghui WANG
China Pharmacy 2025;36(19):2393-2398
OBJECTIVE To study the effects of peripheral blood-derived exosomes (Exo) intervened by Naozhenning (NZN) on injury of neuron cells HT22 induced by microglia BV-2 cells. METHODS Wistar rats were selected to prepare peripheral blood- derived Exo intervened by NZN (66.83 g/kg), referred to as NZN-Exo; peripheral blood-derived Exo intervened by normal saline and piracetam (PLXT, 1.62 g/kg) were prepared using the same method, denoted as KB-Exo and PLXT-Exo respectively, and all Exo were subsequently identified. Meanwhile, BV-2 cells were stimulated with 1 μg/mL lipopolysaccharide (LPS) to prepare LPS- stimulated supernatant, and non-LPS-stimulated supernatant was prepared following the same protocol. HT22 cells were divided into four groups: KB-Exo group (treated with non-LPS-stimulated supernatant+KB-Exo), model group (treated with LPS-stimulated supernatant+KB-Exo), PLXT-Exo group (treated with LPS-stimulated supernatant+PLXT-Exo), and NZN-Exo group (treated with LPS-stimulated supernatant+NZN-Exo), with the concentration of the corresponding Exo in all groups being 50 μg/mL. After 24 hours of culture, the proliferation of HT22 cells was detected by the CCK-8 assay and EdU assay; the apoptosis of HT22 cells was detected; the microstructure of HT22 cells was observed; the contents of interleukin-1β (IL-1β), IL-10, nuclear factor-κB (NF- κB), and tumor necrosis factor-α (TNF-α) in HT22 cells were measured, as well as the expression levels of TNF-α, NOD-like receptor thermal protein domain associated protein 3 (NLRP3), Caspase-1, B-cell lymphoma-2( Bcl-2), and Bcl-2-associated X protein (Bax). RESULTS KB-Exo, PLXT-Exo and NZN-Exo were successfully prepared, and all Exo exhibited typical cup-shaped contours and membrane-enclosed characteristics. Compared with KB-Exo group, model group showed significantly decreased cell proliferation rates (detected by CCK-8 and EdU), intracellular IL-10 levels, and Bcl-2 protein expression levels (P<0.05); while the cell apoptosis rate, intracellular levels of IL-1β, TNF-α, and NF-κB, as well as the expression levels of NLRP3, TNF-α, Caspase-1, and Bax proteins were significantly increased (P<0.05). Additionally, in the model group, the cells showed volume swelling, incomplete cell membrane, nucleolar rupture, significant swelling and deformation of mitochondria, and severe vacuolization. Compared with model group, the above quantitative indicators in the PLXT-Exo group and NZN-Exo group were significantly reversed (P<0.05), with large and round cell nuclei, intact nuclear membranes, and reduced mitochondrial vacuolization. CONCLUSIONS Peripheral blood-derived Exo intervened by naozhenning can alleviate the injury of neuronal cells HT22 by inhibiting inflammatory responses and cell apoptosis.
3.Mechanism of Naozhenning granules in regulating mitochondrial energy metabolism in multiple cerebral concussion rats
Li GAO ; Le ZHAO ; Nannan WEI ; Liya WU ; Tiantian WANG ; Weiyi ZHANG ; Yonghui WANG
China Pharmacy 2024;35(9):1050-1056
OBJECTIVE To explore the mechanism of Naozhenning granules in regulating mitochondrial energy metabolism in hippocampal tissue of multiple cerebral concussion (MCC) model rats. METHODS SPF grade Wistar rats were used to prepare MCC models using the “free fall impact method”. The successfully modeled rats were divided into model group, piracetam group, and Naozhenning granule low-dose, medium-dose and high-dose groups, and a normal group was also set up, with 8 rats in each group. Rats in each treatment group orally administered corresponding drugs at doses of 0.324 g/kg for the piracetam group and 2.25, 4.5 and 9 g/kg for the Naozhenning granule low-dose, medium-dose and high-dose groups; the normal group and model group were given equal volumes of normal saline; once a day, for 14 consecutive days. The motor exploration ability, learning and memory ability of rats were tested; the adenosine triphosphate (ATP) content in the hippocampal tissue of rat was detected; the changes in the mitochondrial structure of hippocampal tissue was observed; the fluorescence intensity of mitochondrial dynamin- related protein 1 (Drp1), mitochondrial fission protein 1 (Fis1), mitochondrial fusion 1 (Mfn1), and optic atrophy protein 1 (Opa1) were detected in the hippocampal tissue of rat; the protein expression levels of peroxisome proliferator activated receptor gamma coactivator-1α(PGC-1α), nuclear respiratory factor-1(NRF-1),mitochondrial transcription factor A(TFAM), Wnt-3a,β-catenin in hippocampal tissue of rat were detected. RESULTS Compared with the normal group, the total exercise distance, number of central grid entries, number of upright positions, new object recognition index, mitochondrial ATP content, fluorescence intensity of Mfn1 and Opa1, the protein expression levels of PGC-1α、NRF-1、TFAM、Wnt-3a、 β-catenin in the model group were significantly reduced (P<0.01), while the rest time and fluorescence intensity of Drp1 and Fis1 in hippocampal tissue were significantly increased (P<0.01). The results of transmission electron microscopy showed that the mitochondria in the hippocampal tissue were significantly swollen, with a large number of broken and reduced cristae, and some mitochondria had myeloid changes in the membrane. Compared with the model group, the levels/contents of the above indicators in rats of each administration group showed varying degrees of reversal, and most of the differences were statistically significant (P<0.05 or P<0.01); the degree of mitochondrial swelling in the hippocampal tissue was reduced, with a small amount of broken and reduced cristae, fuzzy fractures appeared in local areas of the rough endoplasmic reticulum. CONCLUSIONS Naozhenning granules can improve the motor exploration, learning and memory abilities of MCC model rats, repair neuronal damage, and exert neuroprotective effects. Its mechanism may be related to activating Wnt/β-catenin signaling pathway,maintaining the balance of mitochondrial division and fusion,and promoting mitochondrial biosynthesis.
4.Analysis of the relationship between serum lncRNA ANRIL and miR-423-5p and airway inflammation and remodeling in children with bronchial asthma and their predictive value
Luqiang ZHANG ; Liya WANG ; Lichun FAN
International Journal of Laboratory Medicine 2024;45(3):308-313
Objective To analyze the relationship between serum long chain non coding ribonucleic acid(ln-cRNA)ANRIL,microRNA(miR)-423-5p and airway inflammation and remodeling in children with bronchial asthma and its predictive value.Methods A total of 98 children with bronchial asthma treated in Haikou Ma-ternal and Child Health Hospital from June 2020 to December 2022 were selected.46 children with acute at-tack were selected as the attack group and 52 children with clinical remission were selected as the remission group.Another 50 children who were healthy during physical examination in the same period were selected as the health group.The relative expression levels of serum lncRNA ANRIL and miR-423-5p were detected by real-time fluorescence quantitative polymerase chain reaction.The serum inflammatory factor indicators[in-terleukin-13(IL-13),transforming growth factor-β1(TGF-β1),vascular endothelial growth factor(VEGF)]were detected by enzyme-linked immunosorbent assay.Airway remodeling indicators[bronchial thickness(T/D),pipe wall area/total cross-sectional area of gas pipeline(WA)]and lung function indicators[first second forced expiratory volume(FEV1),peak expiratory flow(PEF),maximum mid expiratory flow(MMEF)]were measured.The correlation between expression of serum lncRNA ANRIL,miR-423-5p and airway inflam-mation and remodeling indicators were analyzed by the Pearson method.The predictive value of serum ln-cRNA ANRIL and miR-423-5p in the diagnosis of bronchial asthma was analyzed by receiver operating charac-teristic(ROC)curve.Results The relative expression level of serum lncRNA ANRIL in remission and attack groups was higher than that in healthy group,and the relative expression level of serum miR-423-5p was lower than that in healthy group,with statistical significance(P<0.05).The relative expression level of serum ln-cRNA ANRIL in the attack group was higher than that in the remission group,and the relative expression lev-el of serum miR-423-5p was lower than that in the remission group,with statistical significance(P<0.05).The levels of serum VEGF,IL-13 and TGF-β1 in attack and remission groups were higher than those in healthy group,and the difference was statistically significant(P<0.05).The levels of serum VEGF,IL-13 and TGF-β1 in attack group were higher than those in remission group,and the difference was statistically sig-nificant(P<0.05).The levels of T/D and WA in the remission and attack groups were higher than those in the healthy group,and the levels of FEV,,PEF and MMEF were lower than those in the healthy group,with statistical significance(P<0.05).The levels of T/D and WA in the attack group were higher than those in the remission group,and the levels of FEV1,PEF and MMEF were lower than those in the remission group,with statistical significance(P<0.05).The results of Pearson correlation analysis showed that serum ln-cRNA ANRIL expression was positively correlated with airway inflammation and remodeling indicators,and negatively correlated with lung function indicators(P<0.05).The expression of miR-423-5p was negatively correlated with airway inflammation and remodeling indexes,and positively correlated with lung function inde-xes(P<0.05).ROC curve analysis showed that the area under the curve of lncRNA ANRIL and miR-423-5p alone and combined detection were 0.772,0.707 and 0.865 respectively,the predictive value of combined de-tection in diagnosing bronchial asthma was higher.Conclusion The relative expression level of serum lncRNA ANRIL increase in children with bronchial asthma,and miR-423-5p decrease,which promote airway inflamma-tion,remodeling,lung function decrease,and which has high diagnostic efficacy for children with bronchial asthma.
5.Effect of Naozhenning Granules on Energy Metabolism of Cortical Mitochondria in Rat Model of Post-concussion Syndrome
Nannan WEI ; Liya WU ; Tiantian WANG ; Qizhao LIU ; Weiyi ZHANG ; Yonghui WANG ; Li GAO ; Le ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(14):107-113
ObjectiveTo explore the effects of Naozhenning granules on the memory function and neuron cells in the rat model of post-concussion syndrome based on mitochondrial biosynthesis. MethodSPF-grade Wistar rats were used to establish the multiple cerebral concussion (MCC) model by the weight-drop method. The successfully modeled rats were assigned into model, piracetam (0.324 g·kg-1), and low-, medium-, and high-dose (2.25, 4.5, and 9 g·kg-1, respectively) Naozhenning groups. The rats were administrated with corresponding drugs by gavage and those in the blank group and model group were administrated the same volume of normal saline once a day for 14 days. The general state of rats was observed before and after treatment. The open field test and new object recognition test were conducted to examine the motor and memory abilities of rats. Hematoxylin-eosin staining was employed to observe the pathological changes of cortical neurons in rats. Western blot and real-time polymerase chain reaction were employed to determine the protein and mRNA levels, respectively, of peroxisome proliferator-activated receptor γ-coactivator-1α (PGC-1α), nuclear respiratory factor-1 (NRF-1), and transcription factor A mitochondrial (TFAM) in rat cortex. ResultCompared with the blank group, the model group showed anxious and manic mental status, yellow and messy fur, and reduced food intake. In the open field experiment, the model group showed reduced total movement distance, times of entering the central grid, and times of rearing decreased and increased resting time compared with the blank group (P<0.01). The model group had lower recognition index of new objects than the blank group (P<0.01). In addition, the modeling caused reduced neurons with sparse distribution and deformed, broken, and irregular nucleoli and down-regulated the mRNA and protein levels of PGC-1α, NRF-1, and TFAM in the cortex (P<0.01). Compared with the model group, piracetam and Naozhenning improved the mental state, coat color, food intake, and activities of rats. In the open field test, piracetam and Naozhenning increased the total movement distance, the times of entering the central grid, and the times of rearing and shortened the resting time (P<0.05, P<0.01). The piracetam and Naozhenning groups had higher recognition index of new objects than the model group (P<0.05, P<0.01). Compared with the model group, the piracetam and Naozhenning groups showed increased neurons with tight arrangement and large and round nuclei, and some cells with irregular morphology and turbid cytoplasm. Furthermore, piracetam and medium-dose Naozhenning upregulated the protein levels of PGC-1α, NRF-1, and TFAM (P<0.01). Low-dose Naozhenning upregulated the protein levels of NRF-1 and TFAM (P<0.01), and high-dose Naozhenning upregulated the protein levels of PGC-1α and TFAM in the cortex (P<0.01). The mRNA levels of PGC-1α, NRF-1, and TFAM in the cortex were upregulated in the piracetam group and Naozhenning groups (P<0.05, P<0.01). ConclusionNaozhenning granules can improve the motor, memory, and learning, repair the neuronal damage, and protect the nerve function in the rat model of MCC by promoting mitochondrial biosynthesis.
6.Molecular Mechanism of Action of Astragaloside Ⅳ in Modulating Pyroptosis to Attenuate Intestinal Ischemia-reperfusion Injury Based on Experimental Validation
Liya CHANG ; Yufang LENG ; Zicen ZHAO ; Yu WANG ; Yang XING ; Dongbin LI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(19):116-123
ObjectiveTo investigate the mechanism of astragaloside-Ⅳ (AS-Ⅳ) in regulating pyroptosis to alleviate intestinal ischemia-reperfusion injury (IRI) by combining network pharmacology and in vivo experiments. MethodFirstly, the corresponding target genes of AS-Ⅳ were obtained from TraditionalChineseMedicineSystemsPharmacology(TCMSP) database and Swiss Target Prediction database, and the target genes related to intestinal IRI and Pyroptosis were obtained from GeneCards database, and the common target genes of the three were obtained by drawing Venn diagrams through unspiralized website. Protein-protein interaction (PPI) network was constructed by STRING database and Cytoscape software to screen common target genes and imported into Cytoscape software to obtain core target genes. Microbiotics platform was used for gene ontology(GO) and Kyoto encyclopedia of genes and genomes(KEGG) enrichment analysis and prediction of the mechanism of action of AS-Ⅳ in regulating Pyroptosis to alleviate intestinal IRI. Then C57/BL6J mice were randomly divided into 5 groups normal group, model group(IR), drug administration group (IR+AS-Ⅳ), nucleotide-binding oligomerization structural domain-like receptor protein 3 (NLRP3) agonist NSS group (IR+AS-Ⅳ+NSS), and NLRP3 inhibitor MCC950 group (IR+AS-Ⅳ+MCC950) by using a randomized numerical table method. The intestinal IRI model was established by clamping the superior mesenteric artery for 45 min and resuming perfusion for 2 h in the model group, the drug administration group, the NLRP3 agonist NSS group, and the NLRP3 inhibitor MCC950 group, and the normal group was only separated from the vessels without clamping. The administration group, the NLRP3 agonist NSS group, and the NLRP3 inhibitor MCC950 group were gavaged with astragaloside dissolved in 0.1% dimethylsulfoxide (50 mg·kg-1) for 3 consecutive days before modeling, with the last gavage 2 h before modeling, and the remaining two groups were gavaged with equal amounts of saline. The NLRP3 agonist NSS group was injected intraperitoneally with 4 mg·kg-1 of NSS 1 h before modeling, and the NLRP3 inhibitor MCC950 group was injected intraperitoneally with 10 mg·kg-1 of MCC950 1 h before modeling.The mice were put to death by reperfusion for 2 h, and intestinal tissues were obtained. The levels of IL-18 and IL-1β were detected by enzyme linked immunosorbent assay(ELISA), and the protein expression of thioredoxin-binding protein (TXNIP), NLRP3, Caspase-1 and pyrocatechin D (GSDMD) were detected by Western blot, and the pathological changes of intestinal tissues were evaluated by Chiu's score. ResultNetwork pharmacological analysis showed that there were 1599 targets of intestinal IRI, 199 targets of AS-Ⅳ action, 197 targets of pyroptosis, and 20 targets common to all three. There were 10 core targets, including NLRP3, TXNIP, silencing information regulator 1 (SIRT1), high mobility group protein 1 (HMGB1), interleukin-18 (IL-18), GSDMD, and metallo matrix protease-9 (MMP-9),et al. The results of in vivo experiments showed that compared with the normal group, Chiu's score was elevated in the model group, the levels of IL-18,IL-1β inflammatory factors in mouse intestinal tissues were elevated (P<0.05), and the protein expression levels of TXNIP, NLRP3, Caspase-1, and GSDMD were elevated (P<0.05). Compared with the model group,Chiu's score was decreased in the administered group and NLRP3 inhibitor MCC950 group,the level of IL-18,IL-1β inflammatory factors in the intestinal tissue of mice was decreased(P<0.05), and the level of TXNIP,NLRP3,Caspase-1,GSDMD protein expression was decreased(P<0.05). Compared with the administered group, Chiu's score was elevated in the NLRP3 agonist NSS group, the levels of IL-18, IL-1β inflammatory factors in mouse intestinal tissues were elevated (P<0.05), and the protein expression levels of NLRP3, Caspase-1, and GSDMD were elevated (P<0.05). Compared with the NLRP3 inhibitor MCC950 group, the NLRP3 agonist NSS group had elevated Chiu's scores, elevated levels of IL-18,IL-1β inflammatory factors in mouse intestinal tissues (P<0.05), and elevated levels of TXNIP,NLRP3, Caspase-1, and GSDMD protein expression (P<0.05). ConclusionNetwork pharmacological predictions were consistent with the results of in vivo experiments, and astragaloside attenuated intestinal ischemia-reperfusion injury by inhibiting cellular pyroptosis through the TXNIP-NLRP3 signaling pathway.
7.Mechanism of action and therapeutic potential of the Hippo signaling pathway in ocular disease
International Eye Science 2024;24(11):1764-1768
Hippo signaling pathway plays an important role in cell growth, proliferation, apoptosis, and stem cell regeneration. Dysregulation of this pathway has been linked to various diseases, such as cancer, heart disease, lung disease, kidney disease, liver disease, and immune dysfunction, as well as ocular diseases. Consequently, regulating the balance of Hippo signaling pathway may be an effective treatment for ocular diseases. This article reviews the mechanism of action and therapeutic potential of Hippo signaling pathway in ocular diseases, and discusses the potential therapeutic targets of the Hippo signaling pathway, to identify new targets and provide new research ideas for treating ocular diseases.
8.Biallelic variants in RBM42 cause a multisystem disorder with neurological, facial, cardiac, and musculoskeletal involvement.
Yiyao CHEN ; Bingxin YANG ; Xiaoyu Merlin ZHANG ; Songchang CHEN ; Minhui WANG ; Liya HU ; Nina PAN ; Shuyuan LI ; Weihui SHI ; Zhenhua YANG ; Li WANG ; Yajing TAN ; Jian WANG ; Yanlin WANG ; Qinghe XING ; Zhonghua MA ; Jinsong LI ; He-Feng HUANG ; Jinglan ZHANG ; Chenming XU
Protein & Cell 2024;15(1):52-68
Here, we report a previously unrecognized syndromic neurodevelopmental disorder associated with biallelic loss-of-function variants in the RBM42 gene. The patient is a 2-year-old female with severe central nervous system (CNS) abnormalities, hypotonia, hearing loss, congenital heart defects, and dysmorphic facial features. Familial whole-exome sequencing (WES) reveals that the patient has two compound heterozygous variants, c.304C>T (p.R102*) and c.1312G>A (p.A438T), in the RBM42 gene which encodes an integral component of splicing complex in the RNA-binding motif protein family. The p.A438T variant is in the RRM domain which impairs RBM42 protein stability in vivo. Additionally, p.A438T disrupts the interaction of RBM42 with hnRNP K, which is the causative gene for Au-Kline syndrome with overlapping disease characteristics seen in the index patient. The human R102* or A438T mutant protein failed to fully rescue the growth defects of RBM42 ortholog knockout ΔFgRbp1 in Fusarium while it was rescued by the wild-type (WT) human RBM42. A mouse model carrying Rbm42 compound heterozygous variants, c.280C>T (p.Q94*) and c.1306_1308delinsACA (p.A436T), demonstrated gross fetal developmental defects and most of the double mutant animals died by E13.5. RNA-seq data confirmed that Rbm42 was involved in neurological and myocardial functions with an essential role in alternative splicing (AS). Overall, we present clinical, genetic, and functional data to demonstrate that defects in RBM42 constitute the underlying etiology of a new neurodevelopmental disease which links the dysregulation of global AS to abnormal embryonic development.
Female
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Animals
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Mice
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Humans
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Child, Preschool
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Intellectual Disability/genetics*
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Heart Defects, Congenital/genetics*
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Facies
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Cleft Palate
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Muscle Hypotonia
9.The use of whole-body dynamic 18 F-FDG PET/CT Patlak multiparametric imaging to monitor the synergistic effect and distant effect of PD-1 antibody combined with radiotherapy in the treatment of B16F10 melanoma in mice
Jinzhou ZHANG ; Huimin SHI ; Liya ZHANG ; Jingxuan MIAO ; Gan ZHU ; Xuefeng ZHAO ; Hui WANG
Acta Universitatis Medicinalis Anhui 2024;59(8):1385-1391
Objective To monitor and evaluate the synergistic antitumor effects of programmed death-1(PD-1)checkpoint inhibitor combined with radiation therapy through whole-body dynamic 18 F-Fluorodeoxy glucose positron emission computed tomography(18F-FDG PET/CT)and Patlak multi-parametric analysis.Methods B16F10 mel-anoma dual-tumor mouse model was established and randomly divided into control,PD-1 monoclonal antibody,ra-diation-only,and combination groups(n=6).Whole-body 18F-FDG PET/CT imaging was performed before and 24 hours post-treatment.The changes of maximum standardized uptake value(SUVmax)and metabolic rate of FDG(MRFDG)changes were analyzed and compared.Mice were then euthanized,tumors excised and underwent histo-pathology with HE,CD8,Ki-67 staining to assess immune infiltration and proliferation.Distal tumor volumes were monitored during treatment.Results At 24 hours post-treatment,in the primary tumors,SUVmax and MRFDG values increased compared to pre-treatment in the control group(P<0.000 1),while they decreased in the combination treatment group(P<0.000 1),with statistically significant differences.In the distal tumors,SUVmax and MRFDG values increased compared to pre-treatment in the control group,PD-1 monoclonal antibody group,and radiothera-py-alone group.The SUVmax differences were statistically significant in the control group before and after treatment(P<0.000 1).MRFDG values in the distal tumors showed statistically significant differences in all three groups(P<0.01 or P<0.000 1).In the combination treatment group,SUVmax and MRFDG values in the distal tumors de-creased significantly compared to pre-treatment(P<0.000 1).Post-treatment comparison of SUVmax and MRFDG values in the distal tumors showed that statistically significant differences in SUVmax and MRFDG values were observed among all groups except between the radiotherapy-alone and PD-1 monoclonal antibody groups(all P<0.05).Im-munohistochemistry results showed that the mean absorbance value of CD8 T lymphocytes in the distal tumor was significantly higher than that in the other three groups(P<0.001);the mean absorbance value of Ki-67 immuno-histochemistry in the distal tumor proliferation index was significantly lower than that in the other three groups(P<0.001).Conclusion The synergistic effects of combined treatment reduced distal tumor growth.Whole-body 18F-FDG PET/CT Patlak multi-parametric imaging can monitor the synergistic effects of PD-1 antibody and radiotherapy in B16F10 melanoma,providing reliable imaging parameters for optimizing combinatorial therapies.
10.Long-term hypomethylating agents in patients with myelodysplastic syndromes: a multi-center retrospective study
Xiaozhen LIU ; Shujuan ZHOU ; Jian HUANG ; Caifang ZHAO ; Lingxu JIANG ; Yudi ZHANG ; Chen MEI ; Liya MA ; Xinping ZHOU ; Yanping SHAO ; Gongqiang WU ; Xibin XIAO ; Rongxin YAO ; Xiaohong DU ; Tonglin HU ; Shenxian QIAN ; Yuan LI ; Xuefen YAN ; Li HUANG ; Manling WANG ; Jiaping FU ; Lihong SHOU ; Wenhua JIANG ; Weimei JIN ; Linjie LI ; Jing LE ; Wenji LUO ; Yun ZHANG ; Xiujie ZHOU ; Hao ZHANG ; Xianghua LANG ; Mei ZHOU ; Jie JIN ; Huifang JIANG ; Jin ZHANG ; Guifang OUYANG ; Hongyan TONG
Chinese Journal of Hematology 2024;45(8):738-747
Objective:To evaluate the efficacy and safety of hypomethylating agents (HMA) in patients with myelodysplastic syndromes (MDS) .Methods:A total of 409 MDS patients from 45 hospitals in Zhejiang province who received at least four consecutive cycles of HMA monotherapy as initial therapy were enrolled to evaluate the efficacy and safety of HMA. Mann-Whitney U or Chi-square tests were used to compare the differences in the clinical data. Logistic regression and Cox regression were used to analyze the factors affecting efficacy and survival. Kaplan-Meier was used for survival analysis. Results:Patients received HMA treatment for a median of 6 cycles (range, 4-25 cycles) . The complete remission (CR) rate was 33.98% and the overall response rate (ORR) was 77.02%. Multivariate analysis revealed that complex karyotype ( P=0.02, OR=0.39, 95% CI 0.18-0.84) was an independent favorable factor for CR rate. TP53 mutation ( P=0.02, OR=0.22, 95% CI 0.06-0.77) was a predictive factor for a higher ORR. The median OS for the HMA-treated patients was 25.67 (95% CI 21.14-30.19) months. HMA response ( P=0.036, HR=0.47, 95% CI 0.23-0.95) was an independent favorable prognostic factor, whereas complex karyotype ( P=0.024, HR=2.14, 95% CI 1.10-4.15) , leukemia transformation ( P<0.001, HR=2.839, 95% CI 1.64-4.92) , and TP53 mutation ( P=0.012, HR=2.19, 95% CI 1.19-4.07) were independent adverse prognostic factors. There was no significant difference in efficacy and survival between the reduced and standard doses of HMA. The CR rate and ORR of MDS patients treated with decitabine and azacitidine were not significantly different. The median OS of patients treated with decitabine was longer compared with that of patients treated with azacitidine (29.53 months vs 20.17 months, P=0.007) . The incidence of bone marrow suppression and pneumonia in the decitabine group was higher compared with that in the azacitidine group. Conclusion:Continuous and regular use of appropriate doses of hypomethylating agents may benefit MDS patients to the greatest extent if it is tolerated.


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