1.Evaluating the impact of relative dose intensity on efficacy of trastuzumab deruxtecan for metastatic breast cancer in the real-world clinical setting.
Han Yi LEE ; Vivianne SHIH ; Jack Junjie CHAN ; Shun Zi LIONG ; Ryan Shea Ying Cong TAN ; Jun MA ; Bernard Ji Guang CHUA ; Joshua Zhi Chien TAN ; Chuan Yaw LEE ; Wei Ling TEO ; Su-Ming TAN ; Phyu NITAR ; Yoon Sim YAP ; Mabel WONG ; Rebecca DENT ; Fuh Yong WONG ; Tira J TAN
Annals of the Academy of Medicine, Singapore 2025;54(8):458-466
INTRODUCTION:
Trastuzumab deruxtecan (T-DXd) has revolutionised treatment for metastatic breast cancer (MBC). While effective, its high cost and toxicities, such as fatigue and nausea, pose challenges.
METHOD:
Medical records from the Joint Breast Cancer Registry in Singapore were used to study MBC patients treated with T-DXd (February 2021-June 2024). This study was conducted to address whether reducing dose intensity and density may have an adverse effect on treatment outcomes.
RESULTS:
Eighty-seven MBC patients were treated with T-DXd, with a median age of 59 years. At the time of data cutoff, 32.1% of patients were still receiving T-DXd. Over half (54%) of the patients received treatment with an initial relative dose intensity (RDI) of <;85%. Overall median real-world progression-free survival (rwPFS) was 8.1 months. rwPFS was similar between RDI groups (<85%: 8.7 months, <85%: 8.1 months, P=0.62). However, human epidermal growth receptor 2 (HER2)-positive patients showed significantly better rwPFS outcomes compared to HER2-low patients (8.8 versus 2.5 months, P<0.001). Only 16% with central nervous system (CNS) involvement had CNS progressive disease on treatment. No significant progression-free survival (PFS) differences were found between patients with or without CNS disease, regardless of RDI groups. Five patients (5.7%) developed interstitial lung disease (ILD), with 3 (3.4%) having grade 3 events. Two required high-dose steroids and none were rechallenged after ILD. There were no fatalities.
CONCLUSION
Our study demonstrated that reduced dose intensity and density had no significant impact on rwPFS or treatment-related toxicities. Furthermore, only 5.7% of patients developed ILD. T-Dxd provided good control of CNS disease, with 82% of patients achieving CNS disease control.
Humans
;
Female
;
Breast Neoplasms/mortality*
;
Middle Aged
;
Trastuzumab/adverse effects*
;
Aged
;
Adult
;
Singapore/epidemiology*
;
Antineoplastic Agents, Immunological/adverse effects*
;
Camptothecin/adverse effects*
;
Immunoconjugates/adverse effects*
;
Retrospective Studies
;
Progression-Free Survival
;
Receptor, ErbB-2/metabolism*
;
Neoplasm Metastasis
;
Dose-Response Relationship, Drug
;
Treatment Outcome
;
Registries
2.Neoadjuvant therapy with immune checkpoint inhibitors in combination with chemotherapy vs . chemotherapy alone in HER2(-) locally advanced gastric cancer: A propensity score-matched cohort study.
Gehan XU ; Tianjiao LIU ; Jingyi SHEN ; Quanlin GUAN
Chinese Medical Journal 2025;138(4):459-471
BACKGROUND:
This study aims to compare the efficacy between neoadjuvant immune checkpoint inhibitors (ICIs) plus chemotherapy vs . chemotherapy, and neoadjuvant triplet vs . doublet chemotherapeutic regimens in locally advanced gastric/esophagogastric junction cancer (LAGC).
METHODS:
We included LAGC patients from 47 hospitals in China's National Cancer Information Database (NCID) from January 2019 to December 2022. Using propensity score matching (PSM), we retrospectively analyzed the efficacy between neoadjuvant ICIs plus chemotherapy vs . chemotherapy alone, and neoadjuvant triplet vs . doublet chemotherapeutic regimens. The primary study result was the pathologic complete response (pCR) rate. The secondary study results were disease-free survival (DFS) and overall survival (OS).
RESULTS:
A total of 1205 LAGC patients were included. After PSM, the ICIs plus chemotherapy and the chemotherapy cohorts had 184 patients each, while the doublet and triplet chemotherapy cohorts had 246 patients each. The pCR rate (14.13% vs . 7.61%, χ2 = 4.039, P = 0.044), and the 2-year (77.60% vs . 61.02%, HR = 0.67, 95% con-fidence interval [CI] 0.43-0.98, P = 0.048) and 3-year (70.55% vs . 61.02%, HR = 0.58, 95% CI 0.32-0.93, P = 0.048) DFS rates in the ICIs plus chemotherapy cohort were improved compared to those in the chemotherapy cohort. No significant increase was observed in the OS rates at both 1 year and 2 years. The pCR rates, DFS rates at 1-3 years, and OS rates at 1-2 years did not differ significantly between the doublet and triplet cohorts, respectively. No differences were observed in postoperative complications between any of the group comparisons.
CONCLUSIONS
Neoadjuvant ICIs plus chemotherapy improved the pCR rate and 2-3 years DFS rates of LAGC compared to chemotherapy alone, but whether short-term benefit could translate into long-term efficacy is unclear. The triplet regimen was not superior to the doublet regimen in terms of efficacy. The safety after surgery was similar between either ICIs plus chemotherapy and chemotherapy or the triplet and the doublet regimen.
Humans
;
Stomach Neoplasms/metabolism*
;
Female
;
Neoadjuvant Therapy/methods*
;
Immune Checkpoint Inhibitors/therapeutic use*
;
Male
;
Middle Aged
;
Propensity Score
;
Retrospective Studies
;
Aged
;
Receptor, ErbB-2/metabolism*
;
Adult
;
Antineoplastic Combined Chemotherapy Protocols/therapeutic use*
;
Disease-Free Survival
;
Cohort Studies
3.Paroxetine alleviates dendritic cell and T lymphocyte activation via GRK2-mediated PI3K-AKT signaling in rheumatoid arthritis.
Tingting LIU ; Chao JIN ; Jing SUN ; Lina ZHU ; Chun WANG ; Feng XIAO ; Xiaochang LIU ; Liying LV ; Xiaoke YANG ; Wenjing ZHOU ; Chao TAN ; Xianli WANG ; Wei WEI
Chinese Medical Journal 2025;138(4):441-451
BACKGROUND:
G protein-coupled receptor kinase 2 (GRK2) could participate in the regulation of diverse cells via interacting with non-G-protein-coupled receptors. In the present work, we explored how paroxetine, a GRK2 inhibitor, modulates the differentiation and activation of immune cells in rheumatoid arthritis (RA).
METHODS:
The blood samples of healthy individuals and RA patients were collected between July 2021 and March 2022 from the First Affiliated Hospital of Anhui Medical University. C57BL/6 mice were used to induce the collagen-induced arthritis (CIA) model. Flow cytometry analysis was used to characterize the differentiation and function of dendritic cells (DCs)/T cells. Co-immunoprecipitation was used to explore the specific molecular mechanism.
RESULTS:
In patients with RA, high expression of GRK2 in peripheral blood lymphocytes, accompanied by the increases of phosphatidylinositol 3 kinase (PI3K), protein kinase B (AKT), and mammalian target of rapamycin (mTOR). In animal model, a decrease in regulatory T cells (T regs ), an increase in the cluster of differentiation 8 positive (CD8 + ) T cells, and maturation of DCs were observed. Paroxetine, when used in vitro and in CIA mice, restrained the maturation of DCs and the differentiation of CD8 + T cells, and induced the proportion of T regs . Paroxetine inhibited the secretion of pro-inflammatory cytokines, the expression of C-C motif chemokine receptor 7 in DCs and T cells. Simultaneously, paroxetine upregulated the expression of programmed death ligand 1, and anti-inflammatory cytokines. Additionally, paroxetine inhibited the PI3K-AKT-mTOR metabolic pathway in both DCs and T cells. This was associated with a reduction in mitochondrial membrane potential and changes in the utilization of glucose and lipids, particularly in DCs. Paroxetine reversed PI3K-AKT pathway activation induced by 740 Y-P (a PI3K agonist) through inhibiting the interaction between GRK2 and PI3K in DCs and T cells.
CONCLUSION
Paroxetine exerts an immunosuppressive effect by targeting GRK2, which subsequently inhibits the metabolism-related PI3K-AKT-mTOR pathway of DCs and T cells in RA.
G-Protein-Coupled Receptor Kinase 2/metabolism*
;
Arthritis, Rheumatoid/immunology*
;
Animals
;
Dendritic Cells/metabolism*
;
Paroxetine/therapeutic use*
;
Proto-Oncogene Proteins c-akt/metabolism*
;
Mice
;
Humans
;
Mice, Inbred C57BL
;
Signal Transduction/drug effects*
;
Male
;
Phosphatidylinositol 3-Kinases/metabolism*
;
Lymphocyte Activation/drug effects*
;
Female
;
T-Lymphocytes/metabolism*
;
Middle Aged
4.Abemaciclib plus non-steroidal aromatase inhibitor or fulvestrant in women with HR+/HER2- advanced breast cancer: Final results of the randomized phase III MONARCH plus trial.
Xichun HU ; Qingyuan ZHANG ; Tao SUN ; Yongmei YIN ; Huiping LI ; Min YAN ; Zhongsheng TONG ; Man LI ; Yue'e TENG ; Christina Pimentel OPPERMANN ; Govind Babu KANAKASETTY ; Ma Coccia PORTUGAL ; Liu YANG ; Wanli ZHANG ; Zefei JIANG
Chinese Medical Journal 2025;138(12):1477-1486
BACKGROUND:
In the interim analysis of MONARCH plus, adding abemaciclib to endocrine therapy (ET) improved progression-free survival (PFS) and objective response rate (ORR) in predominantly Chinese postmenopausal women with HR+/HER2- advanced breast cancer (ABC). This study presents the final pre-planned PFS analysis.
METHODS:
In the phase III MONARCH plus study, postmenopausal women in China, India, Brazil, and South Africa with HR+/HER2- ABC without prior systemic therapy in an advanced setting (cohort A) or progression on prior ET (cohort B) were randomized (2:1) to abemaciclib (150 mg twice daily [BID]) or placebo plus: anastrozole (1.0 mg/day) or letrozole (2.5 mg/day) (cohort A) or fulvestrant (500 mg on days 1 and 15 of cycle 1 and then on day 1 of each subsequent cycle) (cohort B). The primary endpoint was PFS of cohort A. Secondary endpoints included cohort B PFS (key secondary endpoint), ORR, overall survival (OS), safety, and health-related quality of life (HRQoL).
RESULTS:
In cohort A (abemaciclib: n = 207; placebo: n = 99), abemaciclib plus a non-steroidal aromatase inhibitor improved median PFS vs . placebo (28.27 months vs . 14.73 months, hazard ratio [HR]: 0.476; 95% confidence interval [95% CI]: 0.348-0.649). In cohort B (abemaciclib: n = 104; placebo: n = 53), abemaciclib plus fulvestrant improved median PFS vs . placebo (11.41 months vs . 5.59 months, HR: 0.480; 95% CI: 0.322-0.715). Abemaciclib numerically improved ORR. Although immature, a trend toward OS benefit with abemaciclib was observed (cohort A: HR: 0.893, 95% CI: 0.553-1.443; cohort B: HR: 0.512, 95% CI: 0.281-0.931). The most frequent grade ≥3 adverse events in the abemaciclib arms were neutropenia, leukopenia, anemia (both cohorts), and lymphocytopenia (cohort B). Abemaciclib did not cause clinically meaningful changes in patient-reported global health, functioning, or most symptoms vs . placebo.
CONCLUSIONS:
Abemaciclib plus ET led to improvements in PFS and ORR, a manageable safety profile, and sustained HRQoL, providing clinical benefit without a high toxicity burden or reduced quality of life.
TRIAL REGISTRATION
ClinicalTrials.gov (NCT02763566).
Humans
;
Female
;
Fulvestrant/therapeutic use*
;
Breast Neoplasms/metabolism*
;
Aminopyridines/therapeutic use*
;
Benzimidazoles/therapeutic use*
;
Middle Aged
;
Aromatase Inhibitors/therapeutic use*
;
Aged
;
Receptor, ErbB-2/metabolism*
;
Adult
;
Letrozole/therapeutic use*
;
Antineoplastic Combined Chemotherapy Protocols/therapeutic use*
;
Anastrozole/therapeutic use*
5.Expert consensus on diagnosis and treatment of advanced non-small cell lung cancer with HER-2 alterations (2025 edition).
Chinese Journal of Oncology 2025;47(9):830-839
Mutations in the human epidermal growth factor receptor 2 (HER-2) gene are recognized as significant but relatively rare driver alterations in non-small cell lung cancer (NSCLC). These mutations predominantly manifest as gene mutation, amplification, and protein overexpression, with an estimated prevalence from 2.8% to 15.4% among NSCLC patients in China. Research indicates that HER-2 mutations, particularly exon 20 insertions (ex20ins), are strongly correlated with aggressive tumor biology, poor prognosis, and limited responsiveness to immunotherapy, thereby exhibiting characteristics of "cold tumors". Overexpression and amplification of HER-2 are also indicative of a heightened risk of chemotherapy resistance and unfavorable survival outcomes, suggesting a distinct molecular subtype with unique biological behaviors. In recent years, novel antibody-drug conjugates (ADCs), particularly trastuzumab deruxtecan (T-DXd), have demonstrated groundbreaking efficacy in HER-2-mutant advanced NSCLC patients. These ADCs have shown significant clinical benefits, including high objective response rates and progression-free survival advantages, making T-DXd the first targeted therapy approved for this patient population globally. Additionally, ADCs have exhibited therapeutic potential in patients with HER-2 overexpression, thus broadening the scope of their indications. To standardize the clinical diagnosis and treatment of HER-2 variant NSCLC, the Chinese Anti-cancer Association convened multidisciplinary experts from oncology, pulmonology, thoracic surgery, pathology, and molecular diagnostics to develop this consensus based on the latest evidences from both domestic and international studies, coupled with China's clinical practice experience. This consensus focuses on the molecular characteristics, clinical significance, diagnostic strategies, treatment options, and safety management of HER-2 alterations, addressing ten critical clinical questions in a systematic manner. It is recommended that HER-2 status be routinely tested at initial diagnosis, disease progression, or recurrence in NSCLC. Mutation detection should prioritize next-generation sequencing (NGS), while protein overexpression may be assessed using immunohistochemistry (IHC) standards for gastric cancer. Fluorescence in situ hybridization (FISH) is recommended for detecting HER-2 amplification. Regarding treatment, for HER-2-mutant patients, first-line therapy may involve chemotherapy with or without immune checkpoint inhibitors (ICIs), similar to treatment approaches for driver-gene negative populations. Upon failure of first-line treatment, trastuzumab deruxtecan, may be considered as alternative therapeutic options. For patients with HER-2 overexpression, ADCs should be considered after failure of standard systemic therapy. However, the management of HER-2 amplification remains insufficiently supported by evidence, necessitating a cautious, individualized approach. The consensus also includes detailed recommendations for screening and managing adverse effects associated with ADCs, such as interstitial lung disease (ILD), emphasizing the crucial role of safety management in ensuring treatment efficacy. The publication of this consensus aims to drive the standardization of molecular diagnosis and treatment pathways for HER-2 variant NSCLC, improve clinical outcomes and quality of life for patients, and facilitate the implementation of personalized precision treatment strategies.
Humans
;
Carcinoma, Non-Small-Cell Lung/pathology*
;
Lung Neoplasms/pathology*
;
Receptor, ErbB-2/metabolism*
;
Mutation
;
Immunoconjugates/therapeutic use*
;
Consensus
;
Trastuzumab/therapeutic use*
;
Camptothecin/analogs & derivatives*
6.Metabolomics and pharmacokinetics of Corni Fructus in ameliorating myocardial ischemic injury.
Xiang-Feng LIU ; Yu WU ; Chao-Yan YANG ; Hua-Wei LIAO ; Yan-Fen CHEN ; Xin HE ; Ying-Fang WANG ; Jin-Ru LIANG
China Journal of Chinese Materia Medica 2025;50(5):1363-1376
This study aims to investigate the ameliorating effect of Corni Fructus(CF) on the myocardial ischemic injury and the pharmacokinetic properties of characteristic components of CF. The mouse model of isoproterenol-induced myocardial ischemia was established and administrated with the aqueous extract of CF. The general efficacy of CF in ameliorating the myocardial ischemic injury was evaluated based on the cardiac histopathology and the levels of myocardial injury markers: creatine kinase isoenzyme(CK-MB) and cardiac troponin I(cTn-I). The metabolomics analysis was carried out for the heart and serum samples of mice to screen the biomarkers of CF in ameliorating the myocardial ischemic injury and then the predicted biomarkers were submitted to metabolic pathway enrichment. The pharmacokinetic analysis was performed for morroniside, loganin, and cornuside Ⅰ in mouse heart and serum samples to obtain the pharmacokinetic parameters of these components. The pharmacokinetic parameters were then integrated on the basis of self-defined weighting coefficients to simulate an integrated pharmacokinetic profile of CF iridoid glycosides in the heart and serum of the mouse model of myocardial ischemia. The results indicated that CF reduced the pathological damage to cardiac cells and tissue(hematoxylin-eosin staining) and lowered the levels of CK-MB and cTn-I in the serum of the mouse model of myocardial ischemia(P<0.01). Metabolomics analysis screed out 31 endogenous metabolites in the heart and 35 in the serum as biomarkers of CF in ameliorating the myocardial ischemic injury. These biomarkers were altered by modeling and restored by CF. Six metabolic pathways in the heart and 5 in the serum were enriched based on these metabolic markers. The main integrated pharmacokinetic parameters of CF iridoid glycosides were T_(max)=1 h, t_(1/2)=(1.52±0.05) h in the heart and T_(max)=1 h, t_(1/2)=(1.56±0.50) h in the serum. Both concentration-time curves showed a double-peak phenomenon. In conclusion, CF demonstrated the cardioprotective effect by regulating metabolic pathways such as taurine and hypotaurine metabolism, and pantothenic acid and coenzyme A biosynthesis. The integrated pharmacokinetics reflect the general pharmacokinetic properties of characteristic components in CF.
Animals
;
Cornus/chemistry*
;
Mice
;
Metabolomics
;
Drugs, Chinese Herbal/administration & dosage*
;
Male
;
Myocardial Ischemia/metabolism*
;
Humans
;
Troponin I/metabolism*
;
Myocardium/pathology*
;
Disease Models, Animal
;
Biomarkers/metabolism*
;
Creatine Kinase, MB Form/metabolism*
7.Comparison of muscle injury between piriformis muscle release and preservation in total hip arthroplasty via supercapsular percutaneously-assisted total hip approach.
Fengping GAN ; Qibiao ZHANG ; Fulai MO ; Linjie LI ; Fei ZHENG ; Xinxin LIN ; Hao QIN
Chinese Journal of Reparative and Reconstructive Surgery 2025;39(6):715-722
OBJECTIVE:
To compare the effects of piriformis muscle release versus preservation in total hip arthroplasty (THA) via supercapsular percutaneously-assisted total hip (SuperPATH) approach on muscle injury.
METHODS:
Forty-nine patients undergoing initial THA via SuperPATH approach between June 2022 and June 2023 were randomly divided into two groups, with 24 patients in trial group and 25 patients in control group. The trial group received piriformis muscle release intraoperatively, whereas the control group underwent muscle preservation. There was no significant difference in baseline data such as gender, age, body mass index, disease type, American Society of Anesthesiologists (ASA) grading, and preoperative muscle infiltration, muscle atrophy, muscle injury serological indicators, Harris score, etc. ( P>0.05). The incision length, operation time, intraoperative blood loss, total blood loss, hospital stay, preoperative and postoperative 1-day muscle injury serological indicators [including creatine kinase (CK) and lactic dehydrogenase (LDH)], and incidence of complications between two groups were recorded. Harris score was used to evaluate the recovery of hip joint function. MRI was used to evaluate the extent of hip muscle injuries (gluteus minimus, gluteus medius, piriformis, obturator internus, quadratus femoris), including tendon integrity, degree of muscle fat infiltration, and degree of muscle atrophy preoperative and 1 year postoperatively.
RESULTS:
The operation time, intraoperative blood loss, and total blood loss in the trial group were significantly shorter than those in the control group ( P<0.05). There was no significant difference in the incision length and length of hospital stay between the two groups ( P>0.05). Both groups showed a significant increase in serum CK and LDH levels on postoperative day 1 compared to preoperative levels ( P<0.05), but there was no significant difference between the two groups ( P>0.05). All patients were followed up, the follow-up time for the trial group and the control group was (14.8±2.8) and (15.1±3.0) months, respectively, with no significant difference ( t=-0.400, P=0.691). Incisions healed by first intention in both groups, with 1 case in the trial group and 2 cases in the control group experiencing venous thrombosis in the calf muscle space. There was no complication such as deep vein thrombosis, pulmonary embolism, hip dislocation, prosthesis loosening, or periprosthetic infection in the lower limbs. There was no significant difference in the incidence of complications between the two groups ( P>0.05). At 1 year after operation, both groups of patients showed a significant increase in Harris scores compared to preoperative levels ( P<0.05), but there was no significant difference between the two groups ( P>0.05). Compared with preoperative results, both groups showed significant fat infiltration in the piriformis and obturator muscles at 1 year after operation ( P<0.05), while there was no significant fat infiltration in the gluteus minimus, gluteus medius, and quadratus femoris muscles ( P>0.05). At 1 year after operation, except for the higher incidence of piriformis muscle fat infiltration in the control group compared to the trial group ( P<0.05), there was no significant difference in the incidence of other muscle infiltrations between the two groups ( P>0.05). At 1 year after operation, both groups of piriformis and obturator muscles showed significant muscle atrophy compared to preoperative levels ( P<0.05). The gluteus minimus and gluteus medius showed mild atrophy compared to preoperative levels, while the maximum transverse diameter of the quadriceps muscle slightly increased, but the differences were not significant ( P>0.05). There was no significant difference in the maximum cross-sectional diameter or cross-sectional area changes of each muscle between the two groups ( P>0.05). At 1 year after operation, the continuity of the gluteus medius and quadratus femoris muscles in both groups was intact. Both groups had some patients with incomplete continuity of the piriformis muscle, obturator internus, and gluteus minimus, but the difference was not significant ( P>0.05).
CONCLUSION
The SuperPATH approach THA may cause injury to the piriformis, gluteus minimus, and obturator internus. The piriformis muscle release does not increase muscle injury, but it can shorten the operation time and reduce bleeding.
Humans
;
Arthroplasty, Replacement, Hip/adverse effects*
;
Male
;
Female
;
Muscle, Skeletal/surgery*
;
Middle Aged
;
Aged
;
Postoperative Complications/epidemiology*
;
Adult
;
Operative Time
;
Muscular Atrophy
;
Creatine Kinase/blood*
;
Length of Stay
;
Treatment Outcome
8.Relationships between Molecular Genetics and Clinical Features of Children with Acute Myeloid Leukemia.
Fei LONG ; Hao XIONG ; Li YANG ; Ming SUN ; Zhi CHEN ; Wen-Jie LU ; Shan-Shan QI ; Fang TAO ; Lin-Lin LUO ; Jing-Pei CHEN
Journal of Experimental Hematology 2025;33(1):69-74
OBJECTIVE:
To analyze the molecular genetic spectrum of children with acute myeloid leukemia (AML), and explore its correlation with clinical characteristics and prognosis.
METHODS:
The clinical and molecular genetic data of 116 children with newly diagnosed AML in Wuhan Children's Hospital from September 2015 to August 2022 were retrospectively analyzed. The Fisher's exact test was used to analyze the correlation of gene mutations with clinical features, and Kaplan-Meier curve was used to analyze the influences of gene mutations on the prognosis.
RESULTS:
NRAS (22%), KRAS (14.9%), and KIT (14.7%) mutations were the most common genetic abnormalities in 116 children with AML. Children with KIT, CEBPA and GATA2 mutations showed a higher median onset-age than those without mutations (all P < 0.05). Children with FLT3-ITD mutation exhibited a higher white blood cell count at initial diagnosis compared to those without mutations (P < 0.05). Children with ASXL2 mutation had lower platelet count and hemoglobin at initial diagnosis than those without mutations (both P < 0.05). KIT mutations were often co-occurred with t(8;21)(q22;q22). There was no significant relationship between gene mutation and minimal residual disease (MRD) remission rate after the first and second induction therapy (P >0.05). KIT and NRAS mutations were not associated with prognosis significantly (P >0.05). The overall survival (OS) rates of children with CEBPA and FLT3-ITD mutations were superior to those without mutations, but the differences were not statistically significant (P >0.05). The 3-year OS rate of 61 children treated by allogeneic hematopoietic stem cell transplantation was 89.8%, which was significantly higher than 55.2% of those only treated by chemotherapy (P < 0.001).
CONCLUSIONS
Gene mutations are common in children with AML, and next-generation sequencing can significantly improve the detection rate of gene mutations, which can guide the risk stratification therapy. In addition, FLT3-ITD and KIT mutations may no longer be poor prognostic factors.
Humans
;
Leukemia, Myeloid, Acute/genetics*
;
Mutation
;
Prognosis
;
Retrospective Studies
;
fms-Like Tyrosine Kinase 3/genetics*
;
Child
;
Proto-Oncogene Proteins c-kit/genetics*
;
Male
;
Female
;
CCAAT-Enhancer-Binding Proteins/genetics*
;
Membrane Proteins/genetics*
;
Child, Preschool
;
Adolescent
;
GATA2 Transcription Factor/genetics*
;
GTP Phosphohydrolases/genetics*
;
Proto-Oncogene Proteins p21(ras)/genetics*
9.Expression and Clinical Significance of CaMKIIγ in Patients with Acute Myeloid Leukemia.
Ming-Kai LIU ; Xu DAI ; Xiao-Ying ZHAO ; Wei-Wei ZHENG ; Ya-Jing MA
Journal of Experimental Hematology 2025;33(3):726-732
OBJECTIVE:
To investigate the expression and potential mechanism of calcium/calmodulin-dependent protein kinase II gamma (CaMKIIγ) in patients with acute myeloid leukemia (AML).
METHODS:
Peripheral blood samples were collected from 90 AML patients, and mononuclear cells were isolated. The expression of CaMKIIγ was measured using real-time quantitative PCR and Western blot. The diagnostic value of CaMKIIγ for AML was assessed, and its correlation with clinical characteristics was analyzed using the clinical data of patients. Additionally, the molecular mechanisms of CaMKIIγ were preliminarily explored.
RESULTS:
Compared with the control group, the expression of CaMKIIγ was significantly upregulated in AML patients. Receiver operating characteristic (ROC) curve analysis showed that CaMKIIγ could serve as a promising biomarker for distinguishing AML patients from healthy individuals. Furthermore, CaMKIIγ was significantly correlated with white blood cell (WBC) count and FLT3-ITD mutation. CaMKIIγ was highly expressed in both newly diagnosed and relapsed AML patients, while decreased during remission. In AML cell lines, the expression levels of CaMKIIγ were all elevated. Inhibition of phosphorylated CaMKIIγ by berbamine led to a decrease in pAKT and pSTAT5 expression.
CONCLUSION
CaMKIIγ is significantly upregulated in AML patients, and is associated with poor clinicopathological features and unfavorable prognosis. It may serve as a prognostic marker and potential therapeutic target in AML. Its expression may be related to the activation of pAKT and pSTAT5, suggesting that CaMKIIγ may contribute to the development and progression of AML through the activation of the AKT/STAT5 signaling pathway.
Humans
;
Leukemia, Myeloid, Acute/metabolism*
;
Calcium-Calmodulin-Dependent Protein Kinase Type 2/metabolism*
;
STAT5 Transcription Factor/metabolism*
;
Male
;
Female
;
Proto-Oncogene Proteins c-akt/metabolism*
;
Mutation
;
Middle Aged
;
Adult
;
Clinical Relevance
10.Advances in Targeted Therapy for Advanced Non-small Cell Lung Cancer with HER2 Mutation.
Chinese Journal of Lung Cancer 2025;28(8):612-620
Human epidermal growth factor receptor 2 (HER2) mutations play a role as a driver gene in non-small cell lung cancer (NSCLC). Patients with advanced NSCLC harboring HER2 mutations exhibit poor responses to conventional chemotherapy and immunotherapy, hence targeted therapies against HER2 are under extensive investigation. This review analyzes the biological characteristics of HER2, an overview of clinical trials for targeted therapy drugs, including monoclonal antibodies, tyrosine kinase inhibitors (TKIs), and antibody-drug conjugate, and research directions for drug resistance in NSCLC. Currently, Pyrotinib and Trastuzumab deruxtecan have been approved for the treatment of advanced NSCLC with HER2 mutations, suitable for patients who have failed standard therapy, which is far from meeting the clinical demands. Novel selective HER2 TKIs are gradually emerging. Future exploration trends are gradually shifting from single drugs to combination strategies, and are exploring more precise selection strategies as well as research on resistance mechanisms. These studies will provide a theoretical basis for clinical treatment strategies for advanced NSCLC with HER2 mutations, promoting the development of personalized therapy.
.
Humans
;
Carcinoma, Non-Small-Cell Lung/pathology*
;
Lung Neoplasms/pathology*
;
Receptor, ErbB-2/metabolism*
;
Mutation
;
Molecular Targeted Therapy
;
Protein Kinase Inhibitors/therapeutic use*
;
Antineoplastic Agents/therapeutic use*

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