1.Effects of Yishen paidu formula on renal fibrosis in rats with chronic renal failure by regulating the ROS/TXNIP/NLRP3 pathway
Li FENG ; Bowen PENG ; Bin PENG ; Xue FENG ; Shuangyi ZHU ; Wei XIONG ; Xi HU ; Xiaohui SUN
China Pharmacy 2026;37(2):174-179
OBJECTIVE To investigate the effects and mechanism of the Yishen paidu formula on renal fibrosis in rats with chronic renal failure (CRF) through the reactive oxygen species (ROS)/thioredoxin-interacting protein (TXNIP)/NOD-like receptor thermal protein domain associated protein 3 (NLRP3) pathway. METHODS Rats were randomly divided into control group, model group, Yishen paidu formula low-dose (Yishen paidu formula-L) group, Yishen paidu formula high-dose (Yishen paidu formula- H) group, Yishen paidu formula-H+pcDNA-NC group, and Yishen paidu formula-H+ pcDNA-TXNIP group, with 10 rats in each group. Except for control group, all other rats were fed a diet containing 0.5% adenine to establish a CRF model; the rats were then administered corresponding drugs or normal saline intragastrically or via tail vein, once daily, for 8 consecutive weeks. After the last administration, the levels of serum creatinine (Scr), blood urea nitrogen (BUN), ROS, superoxide dismutase (SOD), malondialdehyde (MDA), tumor necrosis factor-α (TNF-α), interleukin (IL)-6, and IL-1β were measured in each group. Pathological changes in renal tissue were observed, and the protein expression levels of Collagen Ⅲ, α-smooth muscle actin (α-SMA), transforming growth factor-β1 (TGF-β1), TXNIP and NLRP3 in renal tissue were detected. RESULTS Compared with model group, the renal histopathological damage and fibrosis of rats in Yishen paidu formula-L group and Yishen paidu formula-H group were significantly alleviated. The levels of Scr, BUN, ROS, MDA, TNF- α, IL-6 and IL-1β, and the protein expressions of Collagen Ⅲ, α-SMA, TGF-β1, TXNIP and NLRP3 were significantly decreased, while SOD levels were significantly increased (P<0.05). Moreover, the changes were more pronounced in the Yishen paidu formula-H group (P<0.05). Compared with Yishen paidu formula-H+pcDNA-NC group, above indexes of rats in Yishen paidu formula-H+pcDNA-TXNIP group were reversed significantly (P<0.05). CONCLUSIONS Yishen paidu formula can inhibit renal fibrosis in CRF rats by suppressing the ROS/TXNIP/NLRP3 pathway.
2.Expert consensus on neoadjuvant PD-1 inhibitors for locally advanced oral squamous cell carcinoma (2026)
LI Jinsong ; LIAO Guiqing ; LI Longjiang ; ZHANG Chenping ; SHANG Chenping ; ZHANG Jie ; ZHONG Laiping ; LIU Bing ; CHEN Gang ; WEI Jianhua ; JI Tong ; LI Chunjie ; LIN Lisong ; REN Guoxin ; LI Yi ; SHANG Wei ; HAN Bing ; JIANG Canhua ; ZHANG Sheng ; SONG Ming ; LIU Xuekui ; WANG Anxun ; LIU Shuguang ; CHEN Zhanhong ; WANG Youyuan ; LIN Zhaoyu ; LI Haigang ; DUAN Xiaohui ; YE Ling ; ZHENG Jun ; WANG Jun ; LV Xiaozhi ; ZHU Lijun ; CAO Haotian
Journal of Prevention and Treatment for Stomatological Diseases 2026;34(2):105-118
Oral squamous cell carcinoma (OSCC) is a common head and neck malignancy. Approximately 50% to 60% of patients with OSCC are diagnosed at a locally advanced stage (clinical staging III-IVa). Even with comprehensive and sequential treatment primarily based on surgery, the 5-year overall survival rate remains below 50%, and patients often suffer from postoperative functional impairments such as difficulties with speaking and swallowing. Programmed death receptor-1 (PD-1) inhibitors are increasingly used in the neoadjuvant treatment of locally advanced OSCC and have shown encouraging efficacy. However, clinical practice still faces key challenges, including the definition of indications, optimization of combination regimens, and standards for efficacy evaluation. Based on the latest research advances worldwide and the clinical experience of the expert group, this expert consensus systematically evaluates the application of PD-1 inhibitors in the neoadjuvant treatment of locally advanced OSCC, covering combination strategies, treatment cycles and surgical timing, efficacy assessment, use of biomarkers, management of special populations and immune related adverse events, principles for immunotherapy rechallenge, and function preservation strategies. After multiple rounds of panel discussion and through anonymous voting using the Delphi method, the following consensus statements have been formulated: 1) Neoadjuvant therapy with PD-1 inhibitors can be used preoperatively in patients with locally advanced OSCC. The preferred regimen is a PD-1 inhibitor combined with platinum based chemotherapy, administered for 2-3 cycles. 2) During the efficacy evaluation of neoadjuvant therapy, radiographic assessment should follow the dual criteria of Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 and immune RECIST (iRECIST). After surgery, systematic pathological evaluation of both the primary lesion and regional lymph nodes is required. For combination chemotherapy regimens, PD-L1 expression and combined positive score need not be used as mandatory inclusion or exclusion criteria. 3) For special populations such as the elderly (≥ 70 years), individuals with stable HIV viral load, and carriers of chronic HBV/HCV, PD-1 inhibitors may be used cautiously under the guidance of a multidisciplinary team (MDT), with close monitoring for adverse events. 4) For patients with a poor response to neoadjuvant therapy, continuation of the original treatment regimen is not recommended; the subsequent treatment plan should be adjusted promptly after MDT assessment. Organ transplant recipients and patients with active autoimmune diseases are not recommended to receive neoadjuvant PD-1 inhibitor therapy due to the high risk of immune related activation. Rechallenge is generally not advised for patients who have experienced high risk immune related adverse events such as immune mediated myocarditis, neurotoxicity, or pneumonitis. 5) For patients with a good pathological response, individualized de escalation surgery and function preservation strategies can be explored. This consensus aims to promote the standardized, safe, and precise application of neoadjuvant PD-1 inhibitor strategies in the management of locally advanced OSCC patients.
3.Prognostic impact of lymph node dissection modality in patients with ≤2 cm stage ⅠA STAS-positive lung adenocarcinoma
Xiao CHEN ; Hangcheng ZHOU ; Mingsheng WU ; Meiqing XU ; Tian LI ; Xiaohui SUN ; Zekai ZHANG ; Yu WANG ; Mingran XIE
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2026;33(10):1589-1594
Objective To investigate the effect of different lymph node dissection methods on the prognosis of patients with stage ⅠA spread through air spaces (STAS)-positive lung adenocarcinoma measuring ≤2 cm. Methods The clinical data of 3 148 patients with lung adenocarcinoma who underwent surgery at the Department of Thoracic Surgery, The First Affiliated Hospital of University of Science and Technology of China from 2016 to 2018 were retrospectively analyzed. Patients with stage ⅠA STAS-positive lung adenocarcinoma measuring ≤2 cm were included and divided into two groups based on the extent of lymph node dissection: a systematic lymph node dissection (SLND) group and a limited lymph node dissection (LLND) group. Clinicopathological data between the two groups were compared, and a Cox proportional hazards regression model was used for multivariate survival analysis. Results A total of 209 patients (98 males and 111 females) were included. The mean age was (60.42±10.15) years (ranging from 28 to 83 years). All patients successfully completed the surgery. Univariate analysis revealed that the extent of lymph node dissection, past medical history, and micropapillary histological subtype were influencing factors for prognosis. Multivariate analysis indicated that the extent of lymph node dissection, age, and the micropapillary histological subtype were independent influencing factors for prognosis. Furthermore, among STAS-positive patients, those in the SLND group exhibited a better prognosis compared to those in the LLND group. Conclusion The extent of lymph node dissection is an independent prognostic factor for patients with stage ⅠA STAS-positive lung adenocarcinoma measuring ≤2 cm.Performing SLND may be more beneficial for their long-term prognosis.
4.Efficacy and safety of adalimumab originator and biosimilars in the treatment of Crohn′s disease
Xiaohui LI ; Jingyi JU ; Qinglu YANG ; Pengyun YIN ; Jiaolan YANG ; Cui ZHANG ; Changqin LIU ; Zhanju LIU ; Xiaomin SUN
Chinese Journal of Digestion 2025;45(3):177-181
Objective:To evaluate the efficacy and safety of adalimumab (ADA) originator and biosimilars in the treatment of Crohn′s disease (CD).Methods:From January 2020 to January 2023, the clinical data of 73 patients who were diagnosed as CD and received ADA treatment at the Department of Gastroenterology, the Tenth People′s Hospital of Tongji University were retrospectively analyzed. Among them, 30 patients received ADA originator treatment (National Medicine Approval Number SJ20181019; originator group), 23 patients received biosimilar A treatment (Medicine Medicine Approval Number S20190038; biosimilar A group), and 20 patients received biosimilar B (Medicine Medicine Approval Number S20190043; biosimilar B group). At 12 and 48 weeks after treatment, the clinical data of clinical remission (Crohn′s disease activity index(CDAI) score <150), clinical response (CDAI score decreased ≥ 70 from baseline), endoscopic remission (simple endoscopic score for Crohn′s disease (SES-CD) ≤ 2 or Rutgeerts score ≤ 1), endoscopic response (SES-CD decreased > 50% from baseline), and adverse drug reaction (ADR) were collected. Chi-square test or Fisher′s exact test was used for statistical analysis.Results:After 12 weeks of ADA treatment, the overall clinical remission rate was 69.9% (51/73), which of the biosimilar A group was 69.6% (16/23), the biosimilar B group was 75.0% (15/20), and the originator group was 66.7% (20/30). The overall clinical response rate was 83.6% (61/73), which of the biosimilar A group was 82.6% (19/23), the biosimilar B group was 80.0% (16/20), and the originator group was 86.7% (26/30). The overall endoscopic remission rate was 42.5% (31/73), which of the biosimilar A group was 52.2% (12/23), the biosimilar B group was 45.0% (9/20), and the originator group was 33.3% (10/30). The overall endoscopic response rate was 63.0% (46/73), which of the biosimilar A group was 73.9% (17/23), the biosimilar B group was 70.0% (14/20), and the originator group was 50.0% (15/30). And in the above data, there were no statistically significant differences among the 3 groups (all P>0.05). After 48 weeks of treatment, the overall clinical remission rate was 54.2% (32/59), which of the biosimilar A group was 8/18, the biosimilar B group was 9/15, and the originator group was 57.7% (15/26). The overall clinical response rate was 71.2% (42/59), which of the biosimilar A group was 10/18, the biosimilar B group was 12/15, and the originator group was 76.9% (20/26). The overall endoscopic remission rate was 25.4% (15/59), which of the biosimilar A group was 5/18, the biosimilar B group was 3/15, and the originator group was 26.9% (7/26). The overall endoscopic response rate was 40.7% (24/59), which of the biosimilar A group was 7/18, the biosimilar B group was 5/15, and the originator group was 46.2% (12/26). And in the above data, there were no statistically significant differences among the 3 groups (all P>0.05). The overall incidence of ADR was 32.9% (24/73), which of the biosimilar A group was 30.4% (7/23), the biosimilar B group was 30.0% (6/20), and the originator group was 36.7% (11/30); and there was no statistically significant difference among the 3 groups ( P=0.847). Conclusion:ADA biosimilars A and B demonstrate comparable efficacy and safety to the originator medication in the treatment of CD.
5.Discrepancies between clinical sign and ultrasound-detected inflammatory lesions in psoriatic arthritis
Xiaoying SUN ; Zhibo SONG ; Yan GENG ; Xuerong DENG ; Xiaohui ZHANG ; Juan ZHAO ; Xinyi HU ; Yu WANG ; Hong HUANG ; Zhuoli ZHANG
Chinese Journal of Rheumatology 2025;29(9):750-758
Objective:To explore the distribution variation of ultrasound-detected inflammatory lesions with clinical signs in patients with psoriatic arthritis (PsA).Methods:This was based on the Peking University First Hospital Psoriatic Arthritis (PKUPsA) cohort. Patients enrolled from January 2019 to June 2024 were inchuded, patients with complete data of physical examination and ultrasonographic evaluations of 62 joints in the hand and foot. The ultrasound-detected inflammatory lesions including synovitis, tenosynovitis, enthesitis, and soft tissue inflammation were compared with joint tenderness/swelling. The χ2 test was employed to analyze differences between groups. Results:A total of 7 440 joints in 120 PsA patients were included. Overall, the proportion of joints with clinical signs (tenderness or swelling) was higher than those with ultrasound-detected inflammatory lesions [9.14%(680/7 440) vs. 7.93%(590/7 440), χ2=1 245.928, P<0.001], with more tenderness joints than swelling joints [7.72%(574/7 440) vs. 6.14%(457/7 440), χ2=3 264.45, P<0.001]. Clinical signs were primarily observed in hand proximal interphalangeal (PIP), distal interphalangeal (DIP), wrist and ankle joints, mostly in DIP2 joints [19.58%(47/240)]. Ultrasound-detected inflammatory lesions were predominantly found in metatarsophalangeal (MTP), wrist, and ankle joints, mostly in MTP2 joints (18.75%, 45/240). Clinical signs were more prevalent than ultrasound-detected inflammatory lesions in hand PIP1-3, PIP5, DIP2, and DIP5 joints ( P<0.05), whereas more frequent ultrasound-detected inflammatory lesions than clinical tenderness/swelling were in MTP1-4 joints ( P<0.05). Among ultrasound-detected inflammatory lesions, synovitis in MTP2 joints (18.75%, 45/240), tenosynovitis in ankle joints (10.00%, 24/240), enthesitis in hand DIP2 joints (8.75%, 21/240), and soft tissue inflammation in MTP4 joints (2.50%, 6/240) most commonly observed. Dactylitis was more frequently observed in toes than in fingers, with the fourth toe most commonly affected(16.67%, 40/240). Ultrasound-detected inflammatory lesions were observed in 72.37%(55/240) of fingers/toes with clinical dactylitis, mainly presenting as synovitis, tenosynovitis, or combinations of these. Conclusion:PsA exhibits significant heterogeneity in the inflammatory lesions across different joints and lesion types. The discrepancies between clinical findings and ultrasonic inflammatory changes highlight the limitations of physical examination in fully capturing the pathological features of PsA. As a critical tool for PsA evaluation, ultrasonography offers distinct advantages in detecting subclinical inflammation and differentiating inflammatory from non-inflammatory lesions.
6.Analysis of the effect of inflatable mediastinoscopy esophagectomy and minimally invasive Mckeown esophagectomy combined with thoracoscopy and laparoscopy in the treatment of early esophageal cancer
Zhining HUANG ; Changqing LIU ; Xinyu MEI ; Gaoxiang WANG ; Mingsheng WU ; Shijun CUI ; Xiaohui SUN ; Meiqing XU ; Mingran XIE
Chinese Journal of Surgery 2025;63(2):114-123
Objective:To explore the operioperative and long-term outcomes of inflatable mediastinoscopic resection of esophageal carcinoma (IVMTE) and minimally invasive Mckeown resection of esophageal carcinoma (MIME) in early esophageal cancer.Methods:This is a retrospective cohort study. A retrospectively analysis was conducted on 176 patients with cT1N0M0 esophageal cancer who underwent IVMTE or MIME at the Department of Thoracic Surgery, Anhui Provincial Hospital Affiliated with Anhui Medical University from April 2017 to April 2019. There were 128 males and 48 females, aged (66.4±7.7) years (range: 45 to 87 years). General data, perioperative outcomes, pathological data of the tumors, and complications were recorded. Independent sample t-test, χ2 test, or Wilcoxon rank-sum test was used to compare the data between the two groups. Propensity score matching was performed with gender, age, tumor location, differentiation degree, pT stage, pN stage, American Society of Anesthesiologists (ASA) classification, smoking history, and alcohol history were considered as covariates. The IVMTE group and MIME group were matched in a 1∶2 ratio using nearest neighbor match method with a caliper value of 0.02. Kaplan-Meier method was used to plot survival curves, with Log-rank test for univariate survival analysis. The Cox proportional hazards model was applied to analyze prognostic factors for overall survival, and subgroup stratification analysis was performed for pT stage. Results:After matching, the MIME group consisted of 54 cases, and the IVMTE group consisted of 27 cases. There were no statistically significant differences between the two groups in terms of gender, age, smoking history, alcohol history, ASA classification, tumor location, and other factors. The IVMTE group had shorter surgery time ( M(IQR), 220 (45) minutes vs. 245 (56) minutes, Z=2.950, P=0.003) and less intraoperative blood loss (100 (50) ml vs. 125 (100) ml, Z=2.193, P=0.028) compared to the MIME group. There were no differences between the two groups in the number and quantity of lymph node stations dissected, and the IVMTE group was not at a disadvantage in terms of the number of lymph nodes dissected around the recurrent laryngeal nerve (all P>0.05). The 1-, 3-, and 5-year overall survival (OS) rates and recurrence-free survival (RFS) rates were not significantly different between the two groups (all P>0.05). Subgroup analysis showed no significant difference in OS and RFS rates between the pT1 and pT2 subgroups (all P>0.05). Multivariate Cox regression analysis suggested that ASA classification ( HR=2.516, 95% CI: 1.126 to 5.624, P=0.025), pN stage ( HR=2.485, 95% CI: 0.984 to 6.274, P=0.046), and whether adjuvant therapy was given postoperatively ( HR=2.915, 95% CI: 1.304 to 6.515, P=0.009) were independent risk factors affecting 5-year OS rate. For 5-year RFS, pT stage ( HR=0.403, 95% CI: 0.194 to 0.838, P=0.011), pN stage ( HR=5.219, 95% CI: 2.401 to 11.346, P<0.01), and whether adjuvant therapy was given postoperatively ( HR=5.644, 95% CI: 2.691 to 11.838, P<0.01) were independent risk factors, while the surgical approach was not an independent risk factor affecting patient prognosis. Conclusion:The short-term and long-term effect of IVMTE in the treatment of early esophageal cancer is good, and it can achieve effects comparable to MIME.
7.Efficacy and safety of adalimumab originator and biosimilars in the treatment of Crohn′s disease
Xiaohui LI ; Jingyi JU ; Qinglu YANG ; Pengyun YIN ; Jiaolan YANG ; Cui ZHANG ; Changqin LIU ; Zhanju LIU ; Xiaomin SUN
Chinese Journal of Digestion 2025;45(3):177-181
Objective:To evaluate the efficacy and safety of adalimumab (ADA) originator and biosimilars in the treatment of Crohn′s disease (CD).Methods:From January 2020 to January 2023, the clinical data of 73 patients who were diagnosed as CD and received ADA treatment at the Department of Gastroenterology, the Tenth People′s Hospital of Tongji University were retrospectively analyzed. Among them, 30 patients received ADA originator treatment (National Medicine Approval Number SJ20181019; originator group), 23 patients received biosimilar A treatment (Medicine Medicine Approval Number S20190038; biosimilar A group), and 20 patients received biosimilar B (Medicine Medicine Approval Number S20190043; biosimilar B group). At 12 and 48 weeks after treatment, the clinical data of clinical remission (Crohn′s disease activity index(CDAI) score <150), clinical response (CDAI score decreased ≥ 70 from baseline), endoscopic remission (simple endoscopic score for Crohn′s disease (SES-CD) ≤ 2 or Rutgeerts score ≤ 1), endoscopic response (SES-CD decreased > 50% from baseline), and adverse drug reaction (ADR) were collected. Chi-square test or Fisher′s exact test was used for statistical analysis.Results:After 12 weeks of ADA treatment, the overall clinical remission rate was 69.9% (51/73), which of the biosimilar A group was 69.6% (16/23), the biosimilar B group was 75.0% (15/20), and the originator group was 66.7% (20/30). The overall clinical response rate was 83.6% (61/73), which of the biosimilar A group was 82.6% (19/23), the biosimilar B group was 80.0% (16/20), and the originator group was 86.7% (26/30). The overall endoscopic remission rate was 42.5% (31/73), which of the biosimilar A group was 52.2% (12/23), the biosimilar B group was 45.0% (9/20), and the originator group was 33.3% (10/30). The overall endoscopic response rate was 63.0% (46/73), which of the biosimilar A group was 73.9% (17/23), the biosimilar B group was 70.0% (14/20), and the originator group was 50.0% (15/30). And in the above data, there were no statistically significant differences among the 3 groups (all P>0.05). After 48 weeks of treatment, the overall clinical remission rate was 54.2% (32/59), which of the biosimilar A group was 8/18, the biosimilar B group was 9/15, and the originator group was 57.7% (15/26). The overall clinical response rate was 71.2% (42/59), which of the biosimilar A group was 10/18, the biosimilar B group was 12/15, and the originator group was 76.9% (20/26). The overall endoscopic remission rate was 25.4% (15/59), which of the biosimilar A group was 5/18, the biosimilar B group was 3/15, and the originator group was 26.9% (7/26). The overall endoscopic response rate was 40.7% (24/59), which of the biosimilar A group was 7/18, the biosimilar B group was 5/15, and the originator group was 46.2% (12/26). And in the above data, there were no statistically significant differences among the 3 groups (all P>0.05). The overall incidence of ADR was 32.9% (24/73), which of the biosimilar A group was 30.4% (7/23), the biosimilar B group was 30.0% (6/20), and the originator group was 36.7% (11/30); and there was no statistically significant difference among the 3 groups ( P=0.847). Conclusion:ADA biosimilars A and B demonstrate comparable efficacy and safety to the originator medication in the treatment of CD.
8.Expert consensus on intraoperative repositioning for patients with spine fracture and dislocation (version 2025)
Dongmei BIAN ; Ke SUN ; Ningbo CHEN ; Caixia BAI ; Miao WANG ; Yafeng QIAO ; Fei WANG ; Hong WANG ; Feng TIAN ; Mei YAN ; Meng BAI ; Linjuan ZHANG ; Liyan ZHAO ; Yaqing CUI ; Xue JIANG ; Leling FENG ; Ning NING ; Junqin DING ; Lan WEI ; Yonghua ZHAI ; Yu ZENG ; Zengmei ZHANG ; Jiqun HE ; Fenggui BIE ; Hong CHEN ; Zengyan WANG ; Li LI ; Li ZHANG ; Yaying ZHOU ; Bing SHAO ; Ying WANG ; Caixia XIE ; Yanfeng YAO ; Jingjing AN ; Wen SHI ; Xiongtao LIU ; Xiaoyan AN ; Ning NAN ; Lan LI ; Xiaohui GOU ; Qiaomei LI ; Xiuting WU ; Yuqin ZHANG ; Jing LIU ; Fusen XIANG ; Xu XU ; Na MEI ; Jiao ZHOU ; Shan FAN ; Qian WANG ; Shuixia LI
Chinese Journal of Trauma 2025;41(2):138-147
Spine fracture and dislocation are common traumatic spinal conditions that often require surgical intervention due to compromised spinal stability. Surgical approaches include anterior, posterior, and combined anterior-posterior spinal procedures. According to the specific surgical requirements, patients may be placed in the prone position or repositioned between prone and supine positions during surgery. Intraoperative repositioning has become an essential step in patient positioning. However, during repositioning, patients with spinal fracture and dislocation are at increased risk for complications such as hemodynamic instability, nerve injury, and pressure injuries to the skin and soft tissue. Notably, due to the instability of the spinal cord, even minor manipulations can further exacerbate the damage, potentially leading to severe outcomes like paraplegia. Although the current clinical guidelines provide instructive recommendations for standard position, there remains no specific protocols for intraoperative repositioning in patients with spine fracture and dislocation. With a concern for the lack of clinical studies on positioning techniques, risk prevention, and operational norms for special patients, no applicable guidelines or standards are available. A consensus was required to provide clinical reference, meet the requirements of surgical treatment, and minimize the safety risks of patients caused by improper placement of positions. Professional Committee of Operating Room Nursing of Shaanxi Nursing Association organized experts in nursing management and operating room nursing from major hospitals across China to formulate Expert consensus on intraoperative repositioning for patients with spinal fracture and dislocation ( version 2025). The consensus provides 11 recommendations covering pre-repositioning preparation, intraoperative maneuvers, and post-repositioning observation, aiming to provide references for clinical standardization of the intraoperative repositioning process and protection of patients′ safety.
9.Retrospective clinical analysis of eculizumab treatment for hematopoietic stem cell transplantation-associated thrombotic microangiopathy: a report of 11 cases
Xueyi LUO ; Rui MA ; Huifang WANG ; Lu BAI ; Yun HE ; Yuanyuan ZHANG ; Tingting HAN ; Daoxing DENG ; Yuhong CHEN ; Wei HAN ; Xiaohui ZHANG ; Lanping XU ; Yu WANG ; Xiaojun HUANG ; Yuqian SUN
Chinese Journal of Hematology 2025;46(5):431-436
Objective:To evaluate the efficacy of eculizumab in treating hematopoietic stem cell transplantation-associated thrombotic microangiopathy (TA-TMA) .Methods:This retrospective study included 11 patients who developed TA-TMA after allogeneic hematopoietic stem cell transplantation and subsequently received eculizumab treatment at Peking University People′s Hospital between June 2018 and May 2024. The incidence of TA-TMA, treatment details, and clinical outcomes were analyzed.Results:Among the 11 included patients [4 males, 7 females; median age: 29 years (range: 9-56) ], underlying diseases were severe aplastic anemia (SAA) in 5 patients, acute lymphoblastic leukemia (ALL) in 3 patients, and acute myeloid leukemia (AML) in 3 patients. The median time to TA-TMA diagnosis was 48 days post-transplantation (range: 4-213 days), and all patients met the diagnostic criteria for high-risk TA-TMA. The median interval from TA-TMA diagnosis to the initiation of eculizumab treatment was 12 days (range: 1-56 days). Patients received a median of 3 doses of eculizumab (range: 1-14). Ten of the 11 patients were assessed as having no response (NR) to eculizumab at the end of treatment or at death. One patient achieved a partial response (PR) but subsequently died after TA-TMA relapsed due to infection. At the last follow-up, all patients were either lost to follow-up or had died. The median follow-up duration was 88 days (range: 33-326 days), and the median time from TA-TMA diagnosis to the last follow-up was 31 days (range: 21-113 days) .Conclusion:Eculizumab demonstrated poor efficacy in this TA-TMA cohort. This might be attributable to the critical and complex condition of the patients, delayed initiation of eculizumab treatment, and insufficient dosage.
10.Experimental study of 89Zr-labeled anti-human PDPN monoclonal antibody SZ168 for immunoPET imaging of melanoma
Yu LIU ; Xiaohui SUN ; Siwen LIU ; Jiang WU ; Yue LANG ; Jinchang WU ; Yuechao YU ; Yiming ZHAO ; Feng WANG
Chinese Journal of Nuclear Medicine and Molecular Imaging 2025;45(8):470-474
Objective:To prepare 89Zr-labeled anti-human podoplanin (PDPN) monoclonal antibody SZ168 and evaluate its feasibility for melanoma immunoPET imaging. Methods:89Zr-desferrioxamine (DFO)-SZ168 was prepared by conjugating p-isothiocyanatobenzyl (SCN-Bn)-DFO with SZ168 and chelating with 89Zr. Quality control analyses were conducted, including labeling rate, radiochemical purity, and in vitro stability. Melanoma mouse models were created, with experimental group ( n=3) and control group ( n=3) receiving tail vein injections of 89Zr-DFO-SZ168 and 89Zr-DFO-immunoglobulin (Ig)G solutions (3.7MBq) respectively. The experimental group underwent microPET/CT imaging at 12, 24, 48 and 72h post-injection, while the control group underwent imaging at 48h post-injection. Tumor and organ radioactivity uptake was analyzed using the ROI method. Mice were sacrificed at 7d post-injection to assess the ex vivo biodistribution of 89Zr-DFO-SZ168 and 89Zr-DFO-IgG. Independent-sample t test was used to analyze the data. Results:The pH value of the 89Zr-DFO-SZ168 solution was approximately 7.0, with a labeling rate >60%, radiochemical purity >95% after PD10 column purification, and good stability after 72h in vitro. Series microPET/CT imagings showed significant tumor visualization in tumor-bearing mice. Radioactivity uptake in tumors peaked at 48h post-injection, while the tumor was not clearly detected by 89Zr-DFO-IgG microPET/CT imaging. Ex vivo biodistribution indicated that 89Zr-DFO-SZ168 mainly accumulated in tumors, liver, and bones, with tumor uptake significantly higher than that of 89Zr-DFO-IgG ((29.36±7.29) percentage activity of injection dose per gram of tissue (%ID/g) vs (8.78±1.63) %ID/g; t=4.77, P=0.009). Immunohistochemistry of tumor specimens showed high expression of PDPN in tumor tissues. Conclusions:The probe 89Zr-DFO-SZ168 is successfully prepared, showing potential for specific molecular imaging diagnosis of melanoma. This lays a basis for developing PDPN molecular target-based immuno-PET diagnosis and integrated diagnosis and treatment for melanoma.


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