B lymphocytes (B cells) play a complex and paradoxical role in tumorigenesis. They can recognize tumor-associated antigens, present these antigens to T cells, and produce antibodies that directly target and eliminate tumor cells. This makes B cells a potentially powerful ally in combating cancer. However, B cells also exhibit immunosuppressive functions, secreting cytokines like IL-10 or generating tumor-promoting antibodies that dampen the anti-tumor immune response, and some tumor cells have even been shown to exploit B cells to promote their growth and metastasis. This dual nature of B cells presents both opportunities and challenges for tumor immunotherapy. In this review, we summarize the mechanisms underlying the multifaceted functions of B cells and their current applications in cancer immunotherapy. Furthermore, we also explore the key issues and future directions in this field, emphasizing the need for further research to fully harness the anti-tumor potential of B cells in the fight against cancer.
Humans ; B-Lymphocytes/immunology* ; Neoplasms/therapy* ; Carcinogenesis/immunology* ; Immunotherapy/methods* ; Animals

Objective To investigate the changes of serum cardiac-specific troponin I (cTnI) level in patients after lung transplantation. Methods Clinical data of patients undergoing lung transplantation in our hospital from December 2016 to December 2022 were retrospectively analyzed. The relationship between postoperative serum cTnI level and clinical characteristics were explored. Results Finally 20 patients were collected, including 15 males and 5 females with an average age of (51.65±12.79) years. The serum cTnI level was significantly increased after lung transplantation. The serum cTnI reached the highest level on the first day after transplantation, and significantly decreased from the third day after transplantation. The serum cTnI levels in patients with obstructive pulmonary disease and bilateral lung transplantation were significantly higher than those in patients with restrictive pulmonary disease and unilateral lung transplantation on the day after surgery and on the first day after transplantation. Conclusion Transient myocardial injury can occur after lung transplantation, which is characterized by an abnormal increase in serum cTnI level.

The laccase (PpLAC) gene family members in peach fruit were identified and the relationship between their expression pattern and chilling induced browning were investigated. The study was performed using two varieties of peaches with different chilling tolerance, treated with or without exogenous γ-aminobutyric acid (GABA) during cold storage. Twenty-six genes were screened from the peach fruit genome. These genes were distributed on 6 chromosomes and each contained 5-7 exons. The PpLAC gene family members shared relatively similar gene structure and conserved motifs, and they were classified into 7 subgroups based on the cluster analysis. Transcriptome sequencing revealed that the expression levels of PpLAC7 and PpLAC9 exhibited an increasing pattern under low temperature storage, and displayed a similar trend with the browning index of peach fruit. Notably, GABA treatment reduced the degree of browning and inhibited the expression of PpLAC7 and PpLAC9. These results suggested that PpLAC7 and PpLAC9 might be involved in the browning of peach fruit during cold storage.
Food Storage ; Fruit/genetics* ; Laccase/genetics* ; Prunus persica/genetics*

Objective    To evaluate the safety, feasibility and short-term outcomes of single-direction gastric mobilization under 3D-laparoscopy in minimally invasive esophagectomy for the treatment of esophageal cancer. Methods    From February 2018 to December 2019, 118 consecutive patients who underwent minimally invasive McKeown esophagectomy for esophageal squamous cell carcinoma in our hospital were included. There were 94 males and 24 females with an average age of 53.7 (41–77) years. They were divided into two groups based on the methods of gastric mobilization: a traditional dissociation (TD) group (n=55) and a single-direction mobilization (MD) group (n=63). The clinical data of the two groups were compared. Results    Enbloc resection and a negative resection margin were obtained in all patients. There was no postoperative mortality or incision complication. The rate of postoperative complications was 22.9%. There was no significant difference in the spleen injury, gastric injury, conversion to open surgery, abdominal reoperation as well as cervical anastomotic leakage between the two groups (P>0.05). It took significantly less time in the MD group compared with the TD group (P<0.05). There was an obvious statistical difference in the incidence of gastric mobilization related complications between the MD group (1.6%, 1/63) and TD group (12.7%, 7/55, P<0.05). Conclusion    Application of single-direction gastric mobilization under 3D-laparoscopy in minimally invasive esophagectomy for the treatment of esophageal cancer is safe and easy to perform with a satisfactory short-term outcome.

Objective:To analyze the influencing factors of the degree of increase in serum uric acid in patients with hyperuricemia related to pyrazinamide.Methods:The National ADR Monitoring Information Network System was searched and the adverse reaction reports of hyperuricemia induced by pyrazinamide that were reported from January 2012 to June 2019 in Beijing Chest Hospital, Capital Medical University were collected. The patients' gender, age, height, weight, history of drug allergy, antituberculosis therapy, time of pyrazinamide treatment, and serum uric acid level before and after the treatment were recorded. Linear regression method was used to analyze the influence of the above factors on the degree of increase in serum uric acid, which was expressed by the change rate of serum uric acid.Results:A total of 177 patients were enrolled in the study, including 124 males and 53 females; their ages were from 15 to 82 years, with a median age of 33 (23, 54) years; their body weight was (60±12) kg, in which 34 cases (19.2%) were <50 kg, 123 cases (69.5%) were 50-75 kg, and 20 cases (11.3%) were >75 kg; their height was (170±8) cm. Among the 177 patients, 143 cases (80.8%) received first-line regimen and 34 cases (19.2%) received second-line regimen; the time of pyrazinamide treatment was 1 to 97 days, with a median time of 8 (6, 11) days; 33 cases (18.6%) had history of drug allergy. The baseline uric acid level in 177 patients was (288±72) μmol/L before pyrazinamide administration and (640±105) μmol/L when hyperuricemia occurred. The change rate of serum uric acid was (139±82)%. Univariate linear regression analysis showed that body weight was negatively correlated with the change rate of serum uric acid ( r=-1.343, t=-2.660, P=0.009). The difference in the change rate of serum uric acid among patients with different body weight was statistically significant ( χ 2=6.977, P=0.031). The difference in the change rate of serum uric acid between the <50 kg group and the >75 kg group was statistically significant ( Z=-2.544, P=0.011). Conclusions:Body weight is an independent influencing factor for the degree of increase in serum uric acid in patients with hyperuricemia related to pyrazinamide. The change rate of serum uric acid in hyperuricemia patients with lower body weight is higher.

Objective:To analyze the influencing factors of the degree of increase in serum uric acid in patients with hyperuricemia related to pyrazinamide.Methods:The National ADR Monitoring Information Network System was searched and the adverse reaction reports of hyperuricemia induced by pyrazinamide that were reported from January 2012 to June 2019 in Beijing Chest Hospital, Capital Medical University were collected. The patients' gender, age, height, weight, history of drug allergy, antituberculosis therapy, time of pyrazinamide treatment, and serum uric acid level before and after the treatment were recorded. Linear regression method was used to analyze the influence of the above factors on the degree of increase in serum uric acid, which was expressed by the change rate of serum uric acid.Results:A total of 177 patients were enrolled in the study, including 124 males and 53 females; their ages were from 15 to 82 years, with a median age of 33 (23, 54) years; their body weight was (60±12) kg, in which 34 cases (19.2%) were <50 kg, 123 cases (69.5%) were 50-75 kg, and 20 cases (11.3%) were >75 kg; their height was (170±8) cm. Among the 177 patients, 143 cases (80.8%) received first-line regimen and 34 cases (19.2%) received second-line regimen; the time of pyrazinamide treatment was 1 to 97 days, with a median time of 8 (6, 11) days; 33 cases (18.6%) had history of drug allergy. The baseline uric acid level in 177 patients was (288±72) μmol/L before pyrazinamide administration and (640±105) μmol/L when hyperuricemia occurred. The change rate of serum uric acid was (139±82)%. Univariate linear regression analysis showed that body weight was negatively correlated with the change rate of serum uric acid ( r=-1.343, t=-2.660, P=0.009). The difference in the change rate of serum uric acid among patients with different body weight was statistically significant ( χ 2=6.977, P=0.031). The difference in the change rate of serum uric acid between the <50 kg group and the >75 kg group was statistically significant ( Z=-2.544, P=0.011). Conclusions:Body weight is an independent influencing factor for the degree of increase in serum uric acid in patients with hyperuricemia related to pyrazinamide. The change rate of serum uric acid in hyperuricemia patients with lower body weight is higher.

_ Objective_ To evaluate the efficacy of unilateral subtotal adrenalectomy in the treatment of bilateral adrenal solitary neoplasma causing Cushing's syndrome and to elaborate the therapeutic principle. Methods From 2007 to 2013, a total of ten patients were diagnosed with Cushing's syndrome caused by bilateral solitary adrenal neoplasma. We compared patients'clinical symptoms, hormone profiles, biochemical and metabolic parameters, and imaging data before and after the surgery. Five of them chose the optimal neoplasma based on the lateralization ratio of adrenal venous sampling result and the other 5 patients chose the optimal neoplasma based on the diameter of the mass reflected by the computed tomography result and were then operated. Results After the unilateral subtotal adrenalectomy,the24-hour urinary free cortisol decreased significantly(P<0.05)and the midnight serum cortisol level also significantly reduced(P<0. 01). Plasma adrenocorticotropic hormone level increased significantly(P<0. 01). Nine patients of them did not need contralateral adrenalectomy and one patient received contralateral adrelectomy because of the remnant of Cushingnoid symptoms. Conclusion Unilateral subtotal adrenalectomy is an effective and safe way to treat Cushing's syndrome caused by bilateral solitary neoplasma.

Objective To investigate the feasibility of combined laparoscopic and thoracoscopic esophagectomy for esophageal carcinoma and gastro-esophageal anastomosis in right thoracic cavity.Methods We retrospectively analyzed the clinical data of 38 patients who underwent esophagectomy for esophageal carcinoma and gastro-esophageal anastomosis in right thoracic cavity from October 2011 to August 2012.To remove the stomach in laparoscopic and the esophagus in thoracoscopy.The main portion of a gastric conduit is created using three to four firings of a linear stapler(Ethicon Endo-surgery,Cincinati,OH) and jejunum stoma.Gastric conduit was pulled into the chest cavity and anastomosed to the esophagus.Results The average operative time was 280 minutes,the mean operative blood loss was 120 ml.No patient required laparotomy.No pulmonary complications or anastomotic leaks occurred.One had gastric retention,another one had chylous hydrothorax.All patients were cured,no one dead in hospital.Conclusion Combined laparoscopic and thoracoscopic esophagectomy for esophageal carcinoma and gastro-esophageal anastomosis in right thoracic cavity is technically feasible and safe,minimized trauma,less operative blood loss and quick recovery.

Objective To study the indication,feasibility and short-term efficacy of combined thoracoscopic and laparoscopic radical esophagectomy for the treatment of esophageal cancer.Methods Retrospective medical records analysis was conducted for 139 esophageal cancer patients who underwent combined thoracoscopic and laparoscopic esophagectomy in our department from December 2009 to August 2011.The tumors were located in upper esophagus in 16 cases,middle esophagus in 107 cases,and lower esophagus in 16 cases.The surgery started with the thoracoscopic mobilization of thoracic esophagus and lymph nodes dissection,which were followed by the laparoscopic stomach mobilization and gastroesophageal anastomosis in left neck.Postoperative pathological staging identified stage Ⅰ esophageal cancer in 25 cases ( stage Ⅰ a:13 cases,stage Ⅰ b:12 cases),stage Ⅱ esophageal cancer in 71 cases,stage Ⅲ esophageal cancer in 31 cases ( stage Ⅲ a:16 cases,stage Ⅲ b:15 cases) and stage Ⅳ esophageal cancer in 12 cases.Results Except for open conversions in 4 cases (2.9％),all surgical operations were completed smoothly.Postoperative anastomotic leak was found in 6 cases(4.3％ ),chylothorax in 1 case(0.7％ ),arrhythmia in 4 cases(2.9％ ),and dumping syndrome in 1 case( 0.7％ ).All of these complicated cases fully recovered after conservative treatments.Postoperative lung infection was found 11 cases (7.9％),3 of whom required tracheotomy and assisted ventilation and 1 case died as a result of the infection (mortality rate:0.7％ ).Ten cases(7.2％ ) presented with hoarseness postoperatively.Out of the 139 cases,130 cases were successfully followed up with durations ranged from 1 to 20 months,during of time the esophageal cancer spread to liver in 2 cases,celiac lymph nodes in 4 cases,lung in 2 cases,and bone in 1 case.Ten cases died,and all remaining cases remained alive during the follow up.The one-year survival rate was 88.9％ for these cases.Conclusion Combined thoracoscopic and laparoscopic radical esophagectomy is a technically safe and feasible treatment for esophageal cancer.The short-term efficacy results are satisfactory.This technique is indicated not only for early and middle stage esophageal cancer,but also for some of the advanced esophageal cancer cases.