1.PLUNC downregulates the expression of PD-L1 by inhibiting the interaction of DDX17/β-catenin in nasopharyngeal carcinoma
Ranran FENG ; Yilin GUO ; Meilin CHEN ; Ziying TIAN ; Yijun LIU ; Su JIANG ; Jieyu ZHOU ; Qingluan LIU ; Xiayu LI ; Wei XIONG ; Lei SHI ; Songqing FAN ; Guiyuan LI ; Wenling ZHANG
Journal of Pathology and Translational Medicine 2025;59(1):68-83
Background:
Nasopharyngeal carcinoma (NPC) is characterized by high programmed death-ligand 1 (PD-L1) expression and abundant infiltration of non-malignant lymphocytes, which renders patients potentially suitable candidates for immune checkpoint blockade therapies. Palate, lung, and nasal epithelium clone (PLUNC) inhibit the growth of NPC cells and enhance cellular apoptosis and differentiation. Currently, the relationship between PLUNC (as a tumor-suppressor) and PD-L1 in NPC is unclear.
Methods:
We collected clinical samples of NPC to verify the relationship between PLUNC and PD-L1. PLUNC plasmid was transfected into NPC cells, and the variation of PD-L1 was verified by western blot and immunofluorescence. In NPC cells, we verified the relationship of PD-L1, activating transcription factor 3 (ATF3), and β-catenin by western blot and immunofluorescence. Later, we further verified that PLUNC regulates PD-L1 through β-catenin. Finally, the effect of PLUNC on β-catenin was verified by co-immunoprecipitation (Co-IP).
Results:
We found that PLUNC expression was lower in NPC tissues than in paracancer tissues. PD-L1 expression was opposite to that of PLUNC. Western blot and immunofluorescence showed that β-catenin could upregulate ATF3 and PD-L1, while PLUNC could downregulate ATF3/PD-L1 by inhibiting the expression of β-catenin. PLUNC inhibits the entry of β-catenin into the nucleus. Co-IP experiments demonstrated that PLUNC inhibited the interaction of DEAD-box helicase 17 (DDX17) and β-catenin.
Conclusions
PLUNC downregulates the expression of PD-L1 by inhibiting the interaction of DDX17/β-catenin in NPC.
2.PLUNC downregulates the expression of PD-L1 by inhibiting the interaction of DDX17/β-catenin in nasopharyngeal carcinoma
Ranran FENG ; Yilin GUO ; Meilin CHEN ; Ziying TIAN ; Yijun LIU ; Su JIANG ; Jieyu ZHOU ; Qingluan LIU ; Xiayu LI ; Wei XIONG ; Lei SHI ; Songqing FAN ; Guiyuan LI ; Wenling ZHANG
Journal of Pathology and Translational Medicine 2025;59(1):68-83
Background:
Nasopharyngeal carcinoma (NPC) is characterized by high programmed death-ligand 1 (PD-L1) expression and abundant infiltration of non-malignant lymphocytes, which renders patients potentially suitable candidates for immune checkpoint blockade therapies. Palate, lung, and nasal epithelium clone (PLUNC) inhibit the growth of NPC cells and enhance cellular apoptosis and differentiation. Currently, the relationship between PLUNC (as a tumor-suppressor) and PD-L1 in NPC is unclear.
Methods:
We collected clinical samples of NPC to verify the relationship between PLUNC and PD-L1. PLUNC plasmid was transfected into NPC cells, and the variation of PD-L1 was verified by western blot and immunofluorescence. In NPC cells, we verified the relationship of PD-L1, activating transcription factor 3 (ATF3), and β-catenin by western blot and immunofluorescence. Later, we further verified that PLUNC regulates PD-L1 through β-catenin. Finally, the effect of PLUNC on β-catenin was verified by co-immunoprecipitation (Co-IP).
Results:
We found that PLUNC expression was lower in NPC tissues than in paracancer tissues. PD-L1 expression was opposite to that of PLUNC. Western blot and immunofluorescence showed that β-catenin could upregulate ATF3 and PD-L1, while PLUNC could downregulate ATF3/PD-L1 by inhibiting the expression of β-catenin. PLUNC inhibits the entry of β-catenin into the nucleus. Co-IP experiments demonstrated that PLUNC inhibited the interaction of DEAD-box helicase 17 (DDX17) and β-catenin.
Conclusions
PLUNC downregulates the expression of PD-L1 by inhibiting the interaction of DDX17/β-catenin in NPC.
3.PLUNC downregulates the expression of PD-L1 by inhibiting the interaction of DDX17/β-catenin in nasopharyngeal carcinoma
Ranran FENG ; Yilin GUO ; Meilin CHEN ; Ziying TIAN ; Yijun LIU ; Su JIANG ; Jieyu ZHOU ; Qingluan LIU ; Xiayu LI ; Wei XIONG ; Lei SHI ; Songqing FAN ; Guiyuan LI ; Wenling ZHANG
Journal of Pathology and Translational Medicine 2025;59(1):68-83
Background:
Nasopharyngeal carcinoma (NPC) is characterized by high programmed death-ligand 1 (PD-L1) expression and abundant infiltration of non-malignant lymphocytes, which renders patients potentially suitable candidates for immune checkpoint blockade therapies. Palate, lung, and nasal epithelium clone (PLUNC) inhibit the growth of NPC cells and enhance cellular apoptosis and differentiation. Currently, the relationship between PLUNC (as a tumor-suppressor) and PD-L1 in NPC is unclear.
Methods:
We collected clinical samples of NPC to verify the relationship between PLUNC and PD-L1. PLUNC plasmid was transfected into NPC cells, and the variation of PD-L1 was verified by western blot and immunofluorescence. In NPC cells, we verified the relationship of PD-L1, activating transcription factor 3 (ATF3), and β-catenin by western blot and immunofluorescence. Later, we further verified that PLUNC regulates PD-L1 through β-catenin. Finally, the effect of PLUNC on β-catenin was verified by co-immunoprecipitation (Co-IP).
Results:
We found that PLUNC expression was lower in NPC tissues than in paracancer tissues. PD-L1 expression was opposite to that of PLUNC. Western blot and immunofluorescence showed that β-catenin could upregulate ATF3 and PD-L1, while PLUNC could downregulate ATF3/PD-L1 by inhibiting the expression of β-catenin. PLUNC inhibits the entry of β-catenin into the nucleus. Co-IP experiments demonstrated that PLUNC inhibited the interaction of DEAD-box helicase 17 (DDX17) and β-catenin.
Conclusions
PLUNC downregulates the expression of PD-L1 by inhibiting the interaction of DDX17/β-catenin in NPC.
4.Case report and literature analysis of Mycobacterium iranicum infection
Yewen ZHANG ; Chengling LUO ; Wengao JIANG ; Min CHEN ; Qian DU ; Wei YAO ; Songqing LIU ; Xin XI
China Pharmacy 2025;36(15):1931-1935
OBJECTIVE To offer a reference for the treatment of Mycobacterium iranicum infection by analyzing the diagnosis and management of a single case alongside literature-reported cases. METHODS Through case report and literature reviews, this study synthesized the clinical features, therapeutic regimens, and patient outcomes of those infected with M. iranicum. RESULTS In the single case documented in this report, subsequent to clinical pharmacists’ involvement in the consultation, the patient was prescribed a therapeutic regimen comprising levofloxacin (0.5 g, qd, ivgtt)+Clarithromycin sustained-release tablets (1 000 mg, qd, po) + Ethambutol tablets (0.75 g, qd, po). The patient exhibited clinical improvement and was discharged after treatment. This article integrated 12 published studies, encompassing 13 patients (7 male and 6 female), of whom 69.23% were aged ≥50 years. Patients infected with M. iranicum exhibited non-specific clinical manifestations and imaging features, with pulmonary infection as the primary presentation. Antimicrobial susceptibility test revealed that M. iranicum was susceptible to multiple agents, including amikacin, clarithromycin, linezolid, and ethambutol. The three-drug combination therapy was the most frequently employed regimen. In terms of clinical outcomes, there were 9 cases (69.23%) of clinical cure, 3 cases (23.08%) of bacteriological negativity conversion, and 1 case (7.69%) of treatment failure. CONCLUSIONS For M. iranicum infection, a triple-drug therapeutic regimen consisting of three agents with distinct mechanisms of action selected from amikacin, clarithromycin, moxifloxacin, levofloxacin, minocycline, ethambutol, and other relevant drugs may represent a relatively optimal strategy.
5.Value of target blood pressure management based on cerebral oximetry index during CPB in preventing postoperative delirium in patients with acute type A aortic dissection
Weiwei LI ; Songqing GUO ; Shunyan LIN ; Xin CHEN ; Yang ZHANG ; Chao LUO ; Ju GAO
Chinese Journal of Anesthesiology 2024;44(5):543-547
Objective:To evaluate the value of target blood pressure management based on cerebral oximetry index (COx) during cardiopulmonary bypass (CPB) in preventing postoperative delirium (POD) in patients with acute type A aortic dissection (ATAAD).Methods:One hundred and fifty-seven patients with ATAAD, aged 18-64 yr, regardless of gender, were divided into 2 groups by a random number table method: traditional experience group (group C, n=81) and COx management group (group M, n=76). The mean arterial pressure in group C was maintained in the traditional range of 60-80 mmHg during CPB. In group M, the mean arterial pressure range was obtained based on the COx and maintained within this range during CPB. The primary outcome assessed was the development of delirium within 7 days after surgery. Secondary outcomes included other postoperative complications, tracheal extubation time, and duration of cardiac intensive care unit stay. Results:Compared with group C, the incidence and severity scores of POD were significantly decreased, the duration of POD was shortened, the duration of POD was shortened, the extubation time and duration of cardiac intensive care unit stay were shortened, and the incidence of postoperative cerebral infarction and acute kidney injury was decreased in group M ( P<0.05). Conclusions:Target blood pressure management based on COx during CPB is helpful in reducing the occurrence of POD and improving the prognosis of patients undergoing surgery for ATAAD.
6.A comparison of neuroendoscopic minimally invasive surgery and traditional extraventricular drainage for severe hypertensive intraventricular hemorrhage:a single-center retrospective study
Xian XIAO ; Jiayi SUN ; Qijun YUAN ; Fang XU ; Kun LU ; Haihui LIANG ; Zhipeng CHEN ; Songqing WANG
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2024;31(3):300-303
Objective To analyze the safety and efficacy of neuroendoscopic minimally invasive surgery and traditional extraventricular drainage in the treatment of severe hypertensive intraventricular hemorrhage.Methods The clinical data of 50 cases with neuroendoscopic ventricular hematoma evacuation(endoscopy group)and 44 cases with traditional ventricles external puncture drainage(drainage group)from July 2020 to July 2023 were retrospectively analyzed,and the hematoma clearance rates,classification of activities of daily living(ADL)scale,incidence of hydrocephalus,secondary bleeding,intracranial infection,and pulmonary infection were observed between the two groups of patients.Results After surgery,the proportion of patients with hematoma clearance rate>60%and ADL grades Ⅰ,Ⅱ,and Ⅲ in the endoscopy group were significantly higher than those in the drainage group[the proportion of patients with hematoma clearance rate>60%:88.0%(44/50)vs.47.7%(21/44),χ2=17.794,P<0.001;the proportion of individuals with ADL grades Ⅰ,Ⅱ,and Ⅲ:94.0%(47/50)vs.77.3%(33/44),respectively,χ2=5.459,P=0.019],the incidence of complications in endoscopy group was significantly lower in the drainage group[8.0%(4/50)vs.34.1%(15/44),χ2=9.879,P=0.002].Conclusion Compared with traditional ventricular puncture drainage surgery,neuroendoscopic minimally invasive surgery for the treatment of severe hypertensive intracerebral hemorrhage with ventricular casting can achieve better treatment outcomes,a higher hematoma clearance rate,and fewer postoperative complications.
7.Retrospective study on the use of epinephrine in patients with drug-induced anaphylactic shock in Chongqing from 2015 to 2022
Cheng CHEN ; Yan WANG ; Li DENG ; Qian DU ; Songqing LIU ; Xin XI
China Pharmacy 2023;34(18):2238-2242
OBJECTIVE To evaluate the rationality of epinephrine in the treatment of drug-induced anaphylactic shock, and to provide a reference for further standardizing the treatment measures of anaphylactic shock. METHODS According to the relevant data of the reports of severe adverse drug reaction (ADR) of drug-induced anaphylactic shock provided by Chongqing ADR Monitoring Center from 2015 to 2022, the selection of treatment drugs, and the application of epinephrine in anaphylactic shock were analyzed retrospectively; the clinical outcomes of anaphylactic shock with different epinephrine administration methods were investigated. RESULTS A total of 1 415 cases of severe ADR related to drug-induced anaphylactic shock were reported, with a male-to-female ratio of 1.04∶1; the drugs that caused allergic shock mainly included anti-infective drugs (47.92%), TCM injections (9.12%); the patients who suffered from drug-induced anaphylactic shock within 10 min after medication accounted for 43.96%; 97.24% of patients were cured or improved, and 2.76% of patients died or did not been improved. Among 1 415 patients, 63.39% of patients were treated with epinephrine, and the patients who preferred epinephrine treatment accounted for 53.14%; the intramuscular injection, subcutaneous injection, intravenous injection and intravenous drip accounted for 33.78%, 30.32%, 25.75% and 1.23%, respectively. The initial dose range of epinephrine was 0.01-10 mg, and the most frequent single dose was 1 mg (44.70%). Excessive single doses of intramuscular injection, subcutaneous injection and intravenous injection accounted for 51.03% (148 cases), 53.13% (136 cases) and 91.47% (193 cases) respectively, and the risk of overdose in intravenous injection was higher (P<0.05). The patients receiving initial treatment with epinephrine had a higher improvement rate/cure rate than those who did not use epinephrine (98.14% vs. 96.23%, P=0.029); the patients who preferred epinephrine had a higher improvement rate/cure rate than those who did not preferred epinephrine (98.14% vs. 95.17%, P=0.031); the improvement rate/cure rate of patients receiving intramuscular injection of epinephrine was higher than those without intramuscular injection (99.01% vs. 96.69%, P=0.038). CONCLUSIONS There are some unreasonable phenomena in the treatment of drug-induced anaphylactic shock, such as inappropriate selection of drugs, insufficient use of epinephrine, delay of administration, inappropriate route of administration and excessive single dose.
8.Current status of surgery for portal hypertension in China: a national multi-center survey analysis
Lei ZHENG ; Haiyang LI ; Jizhou WANG ; Xiao LIANG ; Jian DOU ; Jitao WANG ; Qiang FAN ; Xiong DING ; Wenlong ZHAI ; Yun JIN ; Bo LI ; Songqing HE ; Tao LI ; Jun LIU ; Kui WANG ; Zhiwei LI ; Yongyi ZENG ; Yingmei SHAO ; Yang BU ; Dong SHANG ; Yong MA ; Cheng LOU ; Xinmin YIN ; Jiefeng HE ; Haihong ZHU ; Jincai WU ; Zhidan XU ; Dunzhu BASANG ; Jianguo LU ; Liting ZHANG ; Jianguo ZHAO ; Ling LYU ; Guoyue LYU ; Nim CHOI ; To Tan CHEUNG ; Meng LUO ; Wanguang ZHANG ; Xiaolong QI ; Xiaoping CHEN
Chinese Journal of Organ Transplantation 2023;44(3):152-159
Objective:To explore the current status of surgery for portal hypertension to grasp current status and future development of surgery in China.Methods:This study is jointly sponsored by China Hepatobiliary & Pancreatic Specialist Alliance & Portal Hypertension Alliance in China (CHESS).Comprehensive surveying is conducted for basic domestic situations of surgery for portal hypertension, including case load, surgical approaches, management of postoperative complications, primary effects, existing confusion and obstacles, liver transplantation(LT), laparoscopic procedures and transjugular intrahepatic portosystemic shunt(TIPS), etc.Results:A total of 8 512 cases of portal hypertension surgery are performed at 378 hospitals nationwide in 2021.Splenectomy plus devascularization predominated(53.0%)and laparoscopy accounted for 76.1%.Primary goal is preventing rebleeding(67.0%) and 72.8% of hospitals used preventive anticoagulants after conventional surgery.And 80.7% of teams believe that the formation of postoperative portal vein thrombosis is a surgical dilemma and 65.3% of hospitals practiced both laparoscopy and TIPS.The major reasons for patients with portal hypertension not receiving LT are due to a lack of qualifications for LT(69.3%)and economic factors(69.0%).Conclusions:Surgery is an integral part of management of portal hypertension in China.However, it is imperative to further standardize the grasp of surgical indications, the handling of surgical operation and the management of postoperative complications.Moreover, prospective, multi-center randomized controlled clinical studies should be performed.
9.Pharmacy active consultation:an innovative model of hospital pharmaceutical services
Qian DU ; Xin XI ; Jie DONG ; Jun ZHU ; Guili HUANG ; Jinghui GOU ; Hailong RAN ; Cheng CHEN ; Zhanfeng BAI ; Dongxuan LI ; Yuzhu DONG ; Wenjun LI ; Yi SONG ; Songqing LIU
China Pharmacy 2022;33(21):2666-2670
Pharmacy active consultation refers to the spontaneous activity that clinical pharmacists take the initiative to go to clinical departments to help doctors solve problems related to drug use in clinical practice ,put forward drug treatment suggestions or provide pharmaceutical services ,and form medical documents . The difference between pharmacy active consultation and pharmacy consultation is that the latter is generally proposed by the clinician ,who sends a consultation invitation to the pharmacy department in the hospital information system ,and the clinical pharmacist will go to the consultation after receiving it ,while the former is a pharmaceutical service mode that the clinical pharmacist takes the initiative to carry out in the clinical department . On the basis of routine pharmacy active consultation ,clinical pharmacists in our hospital also further carried out a special active consultation mode (including prompt special active consultation for patients with multidrug resistance bacteria positive ,active monitoring and intervention for patients with drug -induced liver injury ),and patient pharmaceutical supervision in the form of return visit of pharmacy active consultation . Pharmacy active consultation and its special active consultation possess the characteristics of initiative , early and extensive coverage ,as a supplement to resident clinical pharmacy services . Pharmacy active consultation could help the pharmacy department to improve service efficiency ,provide a new perspective for medical institutions to carry out efficient pharmaceutical services ,and supply new ideas for the reform of pharmaceutical services in China .
10.Effects of perimenopausal one-day outpatient multidisciplinary model on the cognition of women to menopause hormone therapy
Xin XI ; Hailong RAN ; Cheng CHEN ; Qian DU ; Wenjun LI ; Chiyu XU ; Tingting ZENG ; Yangmei LI ; Xun LEI ; Yao FAN ; Songqing LIU ; Lili YU
China Pharmacy 2022;33(5):628-634
OBJECTIVE To evalu ate the effects of perimenopausal one-day outpatient multidisciplinary model on the cognition of women to menopause hormone therapy (MHT). METHODS The perimenopausal one-day outpatient service opened by the Third Affiliated Hospital of Chongqing Medical University in 2017 was introduced ,which was participated by doctors ,pharmacists, nutritionists,music psychotherapists ,nurses and other multidisciplinary members to provide systematic ,all-round,humanistic and face-to-face group science popularization and education ,practical experience and Q&A for women in perimenopause or about to enter perimenopause (called“students”). The students who participated in one-day outpatient service in 2020 were selected as the survey object , and the questionnaire was CMEI2020KPYJ(ZAMM)00206] designed to analyze the understanding of perimenopausal syndrome,awareness rate of MHT ,willingness to use and concerns. RESULTS A total of 295 students completed the questionnaire. Compared with before participation , after participated in one-day outpatient service ,the cognition level of the students were all improved significantly ,including perimenopausal age (96.61% vs. 99.32%,P=0.037),the importance of perimenopausal health care knowledge (91.19% vs. 96.95%,P<0.001),whether the perimenopausal syndrome needs treatment (88.47% vs. 99.32%,P<0.001),willingness to use MHT (70.59% vs. 94.48% ,P<0.001),MHT treatment timing (60.50% vs. 95.17% ,P<0.001),reducing the risk of cardiovascular disease (51.68% vs. 96.55% ,P<0.001),delaying aging (69.75% vs. 97.59% ,P<0.001),preventing osteoporosis(65.13% vs. 97.59%),P<0.001);the medical staff were higher than the non-medical staff (P<0.05). Totally 90% of the students said they had gained knowledge about the prevention and treatment of common diseases ,nutrition and guidance, psychological regulation guidance hormone therapy related knowledges and exercise methods ;the proportion of the students who were willing to use MHT for 1 to 5 years(31.09% vs. 47.93%)increased significantly. The proportion of the students who concerned about the risk of thrombosis (60.24% vs. 36.81%),weight gain (59.64% vs. 14.84%)and life-long dependence (52.41% vs. 18.13%)was significantly reduced ,but that of the students who concerned about cancer risk was not diminished. From 2017 to 2020,the utilization rate of MHT was increased from 2.22% to 62.16% in non-medical staff among the students. CONCLUSIONS The multidisciplinary model of perimenopausal one-day outpatient service can improve the awareness of MHT among perimenopausal women ,eliminate misunderstandings ,and increase the utilization rate of MHT.

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