1.Adrenocortical carcinoma with rhabdoid features: a case report and literature review
Mingchuan CHU ; Huimin SUN ; Hao WANG ; Jian SONG ; Yongshun GUO
Journal of Modern Urology 2025;30(1):64-68
[Objective] To investigate and summarize the clinicopathological features, diagnosis, treatment and prognosis of adrenocortical carcinoma with rhabdoid features. [Methods] The clinical diagnosis and treatment of a case of adrenocortical carcinoma with rhabdoid features admitled to Department of Urology, Weifang People's Hospital were reported.The clinical manifestations, pathological features, diagnosis and prognosis of the disease were analyzed in combination with relevant literature. [Results] A 34-year-old male patient was admitted due to scrotal distension and pain that had persisted for 6 months.Imaging examination showed a huge soft tissue tumor in the left adrenal region of the retroperitoneum with compression displacement of the left kidney, leading to obstruction of venous return in the left spermatic vein, which in turn caused varicose veins.The levels of serum renin, angiotensin, aldosterone, cortisol, and catecholamine were within normal ranges.Surgical resection of the tumor was performed, and postoperative pathological examination revealed that the tumor tissue was predominantly composed of rhabdoid cells, exhibiting positive immunohistochemical staining for INI 1, Syn, Calretinin and Vimentin.Genetic testing did not identify any deletion of SMARCB1 and SMARCA4 mutations.Therefore, the diagnosis was adrenocortical carcinoma with rhabdoid features.At the current 20-month follow-up, no recurrence or metastasis was observed.A review of the literature found that only 7 cases of this disease had been reported. [Conclusion] Adrenocortical carcinoma with rhabdoid features is a rare disease, and a definitive diagnosis is dependent upon pathological examination.Surgical resection remains the primary treatment.Long-term follow-up is essential, and further research is needed to evaluate the impact of adjuvant therapy.
2.Dipsacus asper Treats Alzheimer's Disease in Caenorhabditis elegans by Regulating PPARα/TFEB Pathway
Mengmeng WANG ; Jianping ZHAO ; Limin WU ; Shuang CHU ; Yanli HUANG ; Zhenghao CUI ; Yiran SUN ; Pan WANG ; Hui WANG ; Zhenqiang ZHANG ; Zhishen XIE
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):104-114
ObjectiveTo investigate the anti-Alzheimer's disease (AD) effect of Dipsacus asper(DA) in the Caenorhabditis elegans model, and decipher the underlying mechanism via the peroxisome proliferator-activated receptor α (PPARα)/transcription factor EB (TFEB) pathway. MethodsFirst, transgenic AD C. elegans individuals were assigned into the blank control, model, positive control (WY14643, 20 µmol·L-1), and low-, medium-, and high-dose (100, 200, and 400 mg·L-1, respectively) DA groups. The amyloid β-42 (Aβ42) formation in the muscle cells, the paralysis time, and the deposition of amyloid β-protein (Aβ) in the head were detected. The lysosomal autophagy in the BV2 cell model was examined by Rluc-LC3wt/G120A. The expression levels of lysosomal autophagy-related proteins LC3Ⅱ, LC3I, LAMP2, and TFEB were detected by Western blot. Real-time quantitative polymerase chain reaction (Real-time PCR) was employed to determine the mRNA levels of autophagy-related genes beclin1 and Atg5 and lysosome-related genes LAMP2 and CLN2 downstream of PPARα/TFEB. A reporter gene assay was used to detect the transcriptional activities of PPARα and TFEB. Immunofluorescence was used to detect the fluorescence intensity of PPARα, and the active components of the ethanol extract of DA were identified by UPLC-MS. RCSB PDB, Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP), and Autodock were used to analyze the binding between the active components and PPARα-ligand-binding domain (LBD). ResultsCompared with the model group, the positive control group and 200 and 400 mg·L-1 DA groups showed prolonged paralysis time (P<0.05), and all the treatment groups showed decreased Aβ deposition in the head (P<0.01). DA within the concentration range of 50-500 mg·L-1 did not affect the viability of BV2 cells. In addition, DA enhanced the autophagy flux (P<0.05), up-regulated the mRNA levels of beclin1, Atg5, LAMP2, and CLN2 (P<0.05, P<0.01), promoted the nuclear translocation of TFEB (P<0.05), increased LAMP2 expression and autophagy flux (P<0.05, P<0.01), and enhanced the transcriptional activities of PPARα and TFEB (P<0.01). The positive control group and 200 and 400 mg·L-1 DA groups showed enhanced fluorescence intensity of PPARα in the BV2 nucleus (P<0.01). UPLC-MS detected nine known compounds of DA, from which 8 active components of DA were screened out. The docking results suggested that a variety of components in DA could bind to PPARα-LBD and form stable hydrogen bonds. ConclusionDA may reduce the pathological changes in AD by regulating the PPARα-TFEB pathway.
3.Mechanism of Icariin in Regulating TGF-β1/Smad Pathway to Induce Autophagy in Human Bone Microvascular Endothelial Cells
Yaqi ZHANG ; Yankun JIANG ; Guoyuan SUN ; Bo LI ; Ran DING ; Cheng HUANG ; Weiguo WANG ; Qidong ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):123-130
ObjectiveTo investigate the regulatory effect of icariin (ICA) on transforming growth factor-β1 (TGF-β1)/Smad pathway in bone microvascular endothelial cells (BMECs) and the effect on autophagy in BMECs. MethodsBMECs were isolated and cultured, and the cell types were identified by immunofluorescence. Cells were divided into the control group, model group (0.1 g·L-1 methyl prednisolone), ICA group (0.1 g·L-1 methyl prednisolone +1×10-5 mol·L-1 ICA), and TGF-β inhibitor group (0.1 g·L-1 methyl prednisolone +1×10-5 mol·L-1 ICA +1×10-5 mol·L-1 LY2157299). Transmission electron microscopy was used to observe the ultrastructure and autophagosome number of BMECs. Autophagy double-standard adenovirus was used to monitor the confocal autophagy flow generation of each cell. Real-time quantitative polymerase chain reaction (Real-time PCR) and Western blot were used to detect the gene and protein expression of autophagy in the TGF-β1/ Smad pathway. ResultsAfter cell separation culture, platelet endothelial cell adhesion molecule (CD31) and von willebrand factor (vWF) immunofluorescence identified BMECs. Transmission electron microscopy showed that the cell membrane was damaged, and the nucleus was pyknotic and broken in the model group. Compared with the model group, the ICA group had complete cell membranes, clear structures, with autophagy-lysosome sparsely distributed. The confocal photo showed that BMECs had autophagosomes and autophagy-lysosomes, and the autophagy expression of the ICA group was similar to that of the blank group. Compared with the blank group, in the model group and the LY2157299 group, autophagosomes and autophagy-lysosomes were barely seen in the autophagy flow. Compared with the blank group, the mRNA and protein expressions of autophagy effector protein 1 (Beclin1) and microtubule-associated protein 1 light chain 3B (LC3B) in the model group were significantly decreased (P<0.01), and those of ubiquitin-binding protein (p62) were significantly increased (P<0.01). The mRNA expression of TGF-β1, Smad homolog 2 (Smad2), and Smad homolog 3 (Smad3) decreased (P<0.05, P<0.01). The protein expressions of TGF-β1, p-Smad2, and p-Smad3 were significantly decreased (P<0.01). Compared with those of the model group, the mRNA and protein expression of Beclin1 and LC3B in BMECs of the ICA group increased (P<0.01), and those of p62 significantly reduced (P<0.01). The mRNA expression of TGF-β1, Smad2, and Smad3 increased significantly (P<0.01). The protein expression of TGF-β1, p-Smad2, and p-Smad3 increased significantly (P<0.01). Compared with those in the model group, the mRNA and protein expressions of Beclin1, LC3B, and p62 in the inhibitor group were not statistically significant. The expression of key genes and proteins of the TGF-β1 pathway in the inhibitor group was not statistically significant. ConclusionICA can promote glucocorticoid-induced autophagy expression of BMECs, and its mechanism may be related to activating the TGF-β1/Smad signaling pathway.
4.Pharmacokinetic Analysis of Ziyuglycoside Ⅰ in Normal and Acute Kidney Injury Rats
Yunhui ZHANG ; Yanli LIU ; Qiongming XU ; Shuding SUN ; Hongjin ZHU ; Di ZHAO ; Suxiang FENG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):203-210
ObjectiveBased on ultra-high performance liquid chromatography-quadrupole-electrostatic field orbital trap-linear ion-trap mass spectrometry(UPLC-Orbitrap Fusion Lumos Tribrid-MS), the plasma concentration of ziyuglycoside Ⅰ was determined at different time points after oral administration, and its pharmacokinetic characteristics in normal rats and rats with acute kidney injury were compared. MethodsRats were randomly divided into normal group and model group, the model group received intraperitoneal cisplatin(10 mg·kg-1) to establish the acute kidney injury model, the normal group was given the same volume of saline. After successful modeling, rats in the normal and model groups were randomly divided into the normal low, medium and high dose groups(2.5, 5, 7.5 mg·kg-1) and the model low, medium and high dose groups(2.5, 5, 7.5 mg·kg-1), 6 rats in each group, and the plasma was collected at different time points after receiving the corresponding dose of ziyuglycoside Ⅰ. Then, the concentration of ziyuglycoside Ⅰ in rat plasma was determined by UPLC-Orbitrap Fusion Lumos Tribrid-MS, and the drug-time curve was poltted. The pharmacokinetic parameters were calculated by Kinetica 5.1 software, and the differences in pharmacokinetic parameters between different administration groups were compared by independent sample t-test with SPSS 22.0. ResultsThe pharmacokinetic results showed that after receiving the different doses of ziyuglycoside Ⅰ, its concentration increased first and then decreased, and all of them reached the maximum plasma concentration at about 0.5 h. The area under the curve(AUC0-t) and mean retention time(MRT0-t) of normal and model rats increased with the increased dose, and the clearance(CL) decreased with the increasing dose. Compared with the normal group, the AUC0-t was significantly increased(P<0.01), peak concentration(Cmax) and CL decreased in model rats at different doses, indicating that the physiological state of the rats could affect the absorption and elimination of ziyuglycoside Ⅰ in vivo. ConclusionThe pharmacokinetic characteristics of ziyuglycoside Ⅰ are quite different in normal rats and acute kidney injury model rats, which may be due to the change of the body environment in the pathological state, then lead to changes in absorption and metabolic processes.
5.Clinical Diseases Responding Specially to TCM Treatment: Psoriasis
Liu LIU ; Xiaoying SUN ; Mei MO ; Yaqiong ZHOU ; Bin LI ; Xiaoxiao ZHANG ; Xin LI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):260-268
Psoriasis is a common chronic inflammatory systemic disease in dermatology. Its high prevalence, recurrence rate, and numerous comorbidities impose a significant physical and mental burden on patients. With the continuous advancement of modern medicine, the emergence of biological agents has improved clinical efficacy, making it possible to overcome psoriasis, in addition to classical treatments. However, in clinical practice, adverse reactions, drug resistance, recurrence rates, and immune drift cannot be ignored. Traditional Chinese medicine (TCM) has a history of thousands of years in treating psoriasis, demonstrating good efficacy, high safety, and a low recurrence rate, but a standardized management system is lacking. Therefore, the 25th Clinical Diseases Responding Specially to TCM Treatment Series (Psoriasis) Youth Salon, hosted by the Chinese Association of Chinese Medicine and organized by the Youth Committee of the Chinese Association of Chinese Medicine, invited 29 experts and scholars from TCM, Western medicine, and interdisciplinary fields to actively discuss the "Advantages, Challenges, and Clinical Transformation of TCM and Western Medicine in the Diagnosis and Treatment of Psoriasis". The experts at the meeting concluded that the advantages of TCM in the treatment of psoriasis are as follows. Firstly, in the TCM-led treatment plan, TCM's understanding of psoriasis follows the principle of combining the differentiation of disease and syndrome. This approach distinguishes the basic contradiction from the current main contradiction and enables a clear grasp of the dynamic process of psoriasis development. Based on the system of syndrome differentiation and treatment, TCM intervention is applied to address the current main contradiction, and the optimal TCM treatment plan is formulated by combining internal and external treatments. Adhering to the principle of "what is visible outside must be addressed inside", TCM can prevent and treat psoriasis comorbidities early by differentiating syndrome types. Secondly, in the integrated TCM and Western medicine treatment plan, the combination of both methods not only enhances efficacy but also reduces the adverse reactions of immunosuppressants and biological agents, lowering the recurrence rate. This conference provides a reference for the diagnosis and treatment of psoriasis using TCM and integrated TCM and Western medicine, opening up new ideas for clinical and basic research and guiding future research directions.
6.Traditional Chinese Medicine Intervenes in Non-alcoholic Fatty Liver Disease by Regulating TLR4 Signaling Pathway: A Review
Zhiwei SU ; Juan XUE ; Jun SUN ; Heng FAN ; Rui ZHU ; Chunyan JI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):291-299
Non-alcoholic fatty liver disease (NAFLD) is a chronic liver disease closely related to metabolism, which is mainly characterized by abnormal lipid deposition in hepatocytes. In recent years, with the increasing prevalence of obesity and metabolic syndrome, NAFLD has become one of the most common chronic diseases in the world. The pathogenesis of NAFLD is complex and varied, involving the cross-regulation of multiple signaling pathways such as glucose-lipid metabolism, oxidative stress, and inflammation. The TLR4 signaling pathway plays a key role in the development and progression of NAFLD, and abnormal activation of this pathway accelerates the deterioration of NAFLD by promoting the release of pro-inflammatory cytokines, inducing oxidative stress, and exacerbating insulin resistance. Studies have shown that traditional Chinese medicine (TCM) can regulate the TLR4 signaling pathway to alleviate the symptoms and pathological features of NAFLD. The present review summarizes the experimental research progress in the TCM regulation of the TLR4 signaling pathway in treating NAFLD in the past 5 years, covering a wide range of TCM active ingredients (such as polysaccharides, terpenoids, alkaloids, flavonoids) and compound prescriptions. The active ingredients and compound prescriptions of TCM can effectively ameliorate lipid metabolism disorders, reduce insulin resistance, regulate intestinal flora, and inhibit inflammation and oxidative stress by regulating the TLR4 signaling pathway via multiple targets and pathways, thus slowing down the progression of NAFLD. Through in-depth analysis of the pathological mechanisms of NAFLD and exploration of the potential of TLR4 signaling pathway as a therapeutic target, we can provide theoretical support for the application of TCM in the treatment of NAFLD, as well as new perspectives and directions for future clinical research and new drug development, thereby promoting the innovation and development of therapeutic strategies for NAFLD.
7.GAO Shuzhong's Experience in Treating Idiopathic Tinnitus with Combination of Acupuncture and Chinese Materia Medica
Pengfei WANG ; Yiyang SUN ; Xiaoyan LI ; Wenli YAN ; Ningning MENG ; Guirong YANG ; Yuxia MA
Journal of Traditional Chinese Medicine 2025;66(3):233-237
To summarize Professor GAO Shuzhong's clinical experience in treating idiopathic tinnitus with a combination of acupuncture and Chinese meteria medica. It is believed that idiopathic tinnitus is mostly caused by weak lungs and spleen, kidney essence deficiency, liver constraint transforming into fire, and binding constraint of heart qi. Treatment advocates the combination of acupuncture and Chinese meteria medica in clinical practice. Acupuncture treatment mainly focus on the method of opening the orifices by syndrome identification in combination with Ermen (TE 21), Tinggong (SI 19), Tinghui (GB 2), Shenmai (BL 62) to regulate qi and blood, and supporting with Baihui (GV 20), Yintang (EX-HN 3), Taichong (LR 3), and Yanglingquan (GB 34) to soothe the liver, resolve constraint, and calm the mind. Oral administration of Chinese medicinal prescription usually includes modified Yiqi Congming Decoction (益气聪明汤) and Tongqi Powder (通气散), and the external administration of Chinese medicinal prescription can apply self-prescribed Wenqing Powder (温清散) to navel moxibustion.
8.The Effect of Fuzheng Huaji Formula (扶正化积方) for Chronic Hepatitis B on Reduction of the Incidence of Liver Cirrhosis and Hepatocellular Carcinoma:A Retrospective Cohort Study
Simiao YU ; Jiahui LI ; Jing JING ; Tingting HE ; Yongqiang SUN ; Liping WANG ; Aozhe ZHANG ; Xiaohe XIAO ; Xia DING ; Ruilin WANG
Journal of Traditional Chinese Medicine 2025;66(3):268-274
ObjectiveTo evaluate the clinical efficacy of Fuzheng Huaji Formula (扶正化积方) for chronic hepatitis B to reduce the incidence of liver cirrhosis and hepatocellular carcinoma. MethodsA retrospective cohort study was conducted, collecting medical records of 118 patients with chronic hepatitis B and 234 patients with hepatitis B-related cirrhosis who visited the hospital between January 1, 2014, and December 31, 2018. The use of Fuzheng Huaji Formula was designated as the exposure factor. Patients receiving antiviral treatment for hepatitis B without concurrent Fuzheng Huaji Formula therapy were included in the western medicine group, while those receiving antiviral treatment combined with Fuzheng Huaji Formula for a cumulative treatment lasting longer than 3 months were included in the combined treatment group. The follow-up observation period was five years. Kaplan-Meier survival analysis was used to assess the cumulative incidence of cirrhosis in patients with chronic hepatitis B and the cumulative incidence of hepatocellular carcinoma in patients with hepatitis B-related cirrhosis. Univariate and multivariate Cox regression analyses were employed to examine the factors influencing the occurrence of cirrhosis and hepatocellular carcinoma. ResultsAmong patients with chronic hepatitis B, there were 55 cases in the combined treatment group and 63 cases in the western medicine group; among patients with hepatitis B-related cirrhosis, there were 110 cases in the combined treatment group and 124 cases in the western medicine group. Five-year follow-up outcomes for chronic hepatitis B patients showed that the cumulative incidence of cirrhosis was 5.45% (3/55) in the combined treatment group and 17.46% (11/63) in the western medicine group, with a statistically significant difference between groups (Z = 2.003, P = 0.045). Five-year follow-up outcomes for hepatitis B-related cirrhosis patients showed that the cumulative incidence of hepatocellular carcinoma was 8.18% (9/110) in the combined treatment group and 22.58% (28/124) in the western medicine group, also showing a statistically significant difference (Z = 3.007, P = 0.003). Univariate and multivariate Cox regression analyses indicated that treatment with Fuzheng Huaji Formula is an independent protective factor in preventing the progression of chronic hepatitis B to cirrhosis and the progression of hepatitis B-related cirrhosis to hepatocellular carcinoma (P<0.05). ConclusionCombining Fuzheng Huaji Formula with antiviral therapy for hepatitis B can effectively intervene in the disease progression of chronic hepatitis B, reducing the incidence of cirrhosis and hepatocellular carcinoma.
9.Effect of Yigan Fupi Prescription (抑肝扶脾方) on the AKT/mTOR Pathway in the Colon Tissue of Diarrhea-Type Irritable Bowel Syndrome Model Rats with Liver Stagnation and Spleen Deficiency Pattern
Suting JIU ; Huiying LI ; Yueting SUN ; Songxiang CUI ; Xintian XU ; Hao ZHENG ; Weimin LU
Journal of Traditional Chinese Medicine 2025;66(3):290-299
ObjectiveTo explore the possible mechanism of Yigan Fupi Prescription (抑肝扶脾方, YFP) in treating diarrhea-type irritable bowel syndrome (IBS-D) by investigating the AKT/mTOR signaling pathway. MethodsSixty SD rats were randomly divided into control group, model group, YFP low-, medium-, and high-dose group, and pinaverium bromide group, with 10 rats in each group. All groups but the control group, were subjected to 21 days of tail-clamping stimulation and 14 days of senna leaf gavage to establish a liver stagnation and spleen deficiency-type IBS-D rat model. After successful modeling, the YFP low-, medium-, and high-dose group were administered 0.96, 1.93, and 3.87 g/(kg·d) of the prescription, respectively. The pinaverium bromide group was given 13.5 mg/(kg·d), while the control and model groups were given 10 ml/(kg·d) distilled water. All groups were administered once daily for 14 consecutive days. General conditions of the rats were recorded during the experiment, and after modeling and drug administration, body weight, Bristol stool score, abdominal withdrawal reflex (AWR) score, and histo pathology of colon tissue were observed under HE staining. ELISA was used to detect serum levels of tumor necrosis factor α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6). Immunofluorescence was employed to detect the levels of AKT/mTOR pathway-related proteins including phosphorylated AKT (p-AKT)/AKT and phosphorylated mTOR (p-mTOR)/mTOR in the colon tissue. Western Blotting was used to detect the levels of autophagy-related proteins, including UNC-51-like kinase 1 (ULK1), Beclin1 and LC3, and tight junction proteins including Occludin and ZO-1 in the colon tissue. ResultsAfter modeling, compared to the control group, the body weight of rats in the other groups decreased, and Bristol stool scores, as well as AWR scores under 20, 40, 60, and 80 mmHg increased (P<0.05 or P<0.01). After drug administration, compared to the control group, the model group showed reduced body weight, decreased ULK1, Beclin1, LC3Ⅱ/LC3Ⅰ, Occludin, and ZO-1 protein levels in the colon tissue (P<0.05 or P<0.01), and increased Bristol stool scores, AWR scores, serum TNF-α, IL-1β, and IL-6 levels, as well as p-AKT/AKT and p-mTOR/mTOR protein relative expression levels (P<0.05 or P<0.01). Pathological results showed a significant reduction in goblet cells in the upper part of the glandular layer of the colon, with mild inflammatory cell infiltration. The submucosal collagen fibers were dissolved, with unclear boundaries, pale staining, and microvascular congestion and dilation. Compared with the model group, the YFP low-, medium-, and high-dose group and the pinaverium bromide group showed increased body weight, Beclin1, Occludin, and LC3Ⅱ/LC3Ⅰ protein levels (P<0.05 or P<0.01), and decreased Bristol stool scores, AWR scores under 40, 60, and 80 mmHg, serum IL-1β, IL-6, TNF-α levels, and p-AKT/AKT, p-mTOR/mTOR protein relative expression levels (P<0.05 or P<0.01). The pathological morphology of the rats in the YFP groups and pinaverium bromide group showed varying degrees of improvement. Compared with the pinaverium bromide group, the YFP low- and medium-dose group showed increased AWR scores under 20, 40, and 60 mmHg (P<0.05). The YFP low-dose group had reduced TNF-α, IL-1β, and IL-6 levels, and increased p-mTOR/mTOR protein relative expression levels occured in all YFP groups (P<0.05). Compared with the YFP low-dose group, the YFP high-dose group and pinaverium bromide group showed decreased AWR scores under different pressure levels and reduced p-AKT/AKT protein relative expression levels, while the YFP medium- and high-dose group had elevated serum TNF-α, IL-1β levels and reduced p-mTOR/mTOR protein relative expression levels (P<0.05). ConclusionYFP can effectively improve the pathological injury of colon tissue in IBS-D model rats with liver stagnation and spleen deficiency, reduce Bristol stool and AWR scores, and its mechanism may be related to reducing level of inflammatory factors and inhibiting AKT/mTOR pathway-related proteins in colon tissue, thereby enhancing the expression of autophagy-related proteins in the colon tissue.
10.Exploration on factors influencing HLA-C molecular expression level by flow cytometry
Yunan LI ; Renhui JIANG ; Siqi CAI ; Jie LIU ; Zhihui DENG
Chinese Journal of Blood Transfusion 2025;38(1):79-84
[Objective] To investigate the factors influencing the detection of HLA-C expression by flow cytometry. [Methods] A total of 12 hematopoietic stem cell suspension samples from peripheral hematopoietic stem cell volunteer donors were randomly collected after CD34+ cell counting detection. The influence of detecting different number of nucleated cell (500 000, 50 000 and 5 000), sequential order of red blood cell lysis and antibody incubation, and the HLA-C antibody with varied remaining time from the expiration date on the detection results of HLA-C expression by flow cytometry were investigated, respectively. The significance of differences between different groups was analyzed through Student t test. [Results] There was no significant difference in the proportion of HLA-C positive cells and mean fluorescence intensity (MFI) among the three groups with different nucleated cell numbers detected (500 000, 50 000 and 5 000) (P>0.05). The sequential order of red blood cell lysis and antibody incubation had no influence on the proportion of HLA-C positive cells (P>0.05), but HLA-C MFI value was significantly lower when antibody incubation was performed after red blood cell lysis than that when antibody incubation was performed before red blood cell lysis (P<0.05). The proportion of HLA-C positive cells and MFI value detected by HLA-C antibody remaining 24 months from the expiration date were significantly higher than those detected by HLA-C antibody remaining only 5 months from the expiration date (P<0.05). [Conclusion] The present study has investigated the factors of influencing HLA-C expression level by flow cytometry, the results have important reference and application value for standardizing the experimental operation of HLA-C expression and improving the accuracy and comparability of detection results.

Result Analysis
Print
Save
E-mail