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Chen K, Li M, Xu R, Zheng PP, Chen MD, Zhu L, Wang WB, Wang ZG. Changing trends in gastric and colorectal cancer among surgical patients over 85 years old: A multicenter retrospective study, 2001-2021. World J Gastrointest Surg 2023; 15:1739-1750. [PMID: 37701701 PMCID: PMC10494600 DOI: 10.4240/wjgs.v15.i8.1739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 05/31/2023] [Accepted: 07/06/2023] [Indexed: 08/25/2023] Open
Abstract
BACKGROUND Whether patients over 85 years old with gastrointestinal cancer should undergo surgery remains controversial. We aimed to describe the changing trends of characteristics to provide more information to decision makers, and strive to find appropriate surgical plan. AIM To describe the changing trends of characteristics to provide more information to decision makers, and strive to find appropriate surgical plan. METHODS A total of 218 gastric cancer (GC) patients and 563 colorectal cancer (CRC) patients who underwent surgery between 2001 and 2021 were enrolled in this retrospective analysis. Changes in clinicopathological features, surgical treatments, and survival status were analyzed longitudinally at 5-year intervals. RESULTS Only 14 GC patients underwent laparoscopic surgery where 219 CRC patients had this procedure. Cardia and esophagogastric junction cancer increased in GC patients, and the proportion of sigmoid colon cancer decreased in CRC patients. Pulmonary infection gradually became the most common postoperative complication, its incidence in period 4 reached 48.79%. However, the incidence of anastomotic leakage decreased from 26.79% to 9.38% (P < 0.01). Additionally, 30-d mortality significantly decreased from 32.14% to 9.01%. Increases were observed in 5-year overall survival (OS) in GC patients from period 1 to period 4 (18.18% vs 33.32%, respectively) and CRC patients (0 vs 36.32%, respectively). Disease-free survival (DFS) also increased in GC and CRC patients (7.14% vs 27.74% and 0 to 36.03%, respectively). The average survival time of GC patients following radial lymphadenectomy was higher than in patients that underwent limited lymphadenectomy (26 vs 22 mo, respectively), the same was seen in CRC patients (44 vs 33 mo, respectively). This advantage was particularly evident in patients with TNM I, but not in patients with TNM II/III period cancer. CONCLUSION The safety as well as effectiveness of surgery in ultra-elderly patients is increasing. Radical lymphadenectomy has advantages in patients with TNM I gastrointestinal cancer, but not TNM II/III.
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Affiliation(s)
- Ke Chen
- Department of Vascular Surgery, Drum Tower Hospital Affiliated to Medical School of Nanjing University, Nanjing 210000, Jiangsu Province, China
| | - Ming Li
- College of Pharmacy of Anhui Medical University, Hefei 230001, Anhui Province, China
| | - Ran Xu
- Department of General Surgery, First Affiliated Hospital of Wannan Medical College, Wuhu 241000, Anhui Province, China
| | - Ping-Ping Zheng
- Department of General Practice, First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui Province, China
| | - Meng-Ding Chen
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 231000, Anhui Province, China
| | - Liang Zhu
- Department of General Surgery, First Affiliated Hospital of University of Science and Technology of China, Hefei 230001, Anhui Province, China
| | - Wen-Bin Wang
- Department of General Surgery, Second Affiliated Hospital of Anhui Medical University, Hefei 231000, Anhui Province, China
| | - Zheng-Guang Wang
- Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 231000, Anhui Province, China
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Lu YT, Wang L, Hou LL, Zheng PP, Xu Q, Deng DT. SLC26A4 mutation in Pendred syndrome with hypokalemia: A case report. Medicine (Baltimore) 2022; 101:e30253. [PMID: 36107570 PMCID: PMC9439793 DOI: 10.1097/md.0000000000030253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
RATIONALE Pendred syndrome is an autosomal recessive disorder characterized by sensorineural hearing loss, inner ear malformations, goiter, and abnormal organification of iodide. It is caused by mutations in SLC26A4 gene, which encodes pendrin (a transporter of chloride, bicarbonate, and iodide). Pendred syndrome is a common cause of syndromic deafness, but the metabolic abnormalities it causes are often overlooked. Here, we report the case of a patient diagnosed with Pendred syndrome with hypokalemia. PATIENT CONCERNS A 53-year-old deaf-mute woman was hospitalized due to severe limb asthenia. The emergency examination showed that her blood potassium level was 1.8 mmol/L. DIAGNOSES Through the genetic test, we found a mutation of SLC26A4 gene in NM_000441: c.2027T>A, p.L676Q, as well as the SLC26A4 exon 5-6 deletion. These genetic variations pointed to Pendred syndrome (an autosomal recessive disorder that mainly affects the inner ear, thyroid, and kidney) which is a common cause of syndromic deafness. INTERVENTIONS The patient was treated with potassium supplements and screened for the cause of hypokalemia. OUTCOMES The patient was discharged after her potassium levels rose to the normal range. LESSONS Patients with Pendred syndrome may also have certain metabolic abnormalities; thus, more attention should be paid to them during clinical diagnosis.
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Affiliation(s)
- Ya-Ting Lu
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Lin Wang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Le-Le Hou
- Department of Endocrinology, Zhongda Hospital, Medical School, Southeast University, Nanjing, Jiangsu Province, China
| | - Ping-Ping Zheng
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Qian Xu
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
| | - Da-Tong Deng
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China
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3
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Zheng PP, Yao SM, Wang H, Yang JF. [Research update on patients with heart failure and frailty]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:95-100. [PMID: 35045624 DOI: 10.3760/cma.j.cn112148-20210124-00084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- P P Zheng
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - S M Yao
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H Wang
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J F Yang
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
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Li YY, Liang YD, Yao SM, Zheng PP, Zeng XZ, Cui LL, Guo D, Wang H, Yang JF. [Predictive value of N-terminal B-type natriuretic peptide on outcome of elderly hospitalized non-heart failure patients]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 48:661-668. [PMID: 32847322 DOI: 10.3760/cma.j.cn112148-20200309-00175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the predictive value of N-terminal type B natriuretic peptide(NT-proBNP) on the prognosis of elderly hospitalized patients without heart failure(non-heart failure). Method: Elderly patients aged 65 years or older, who were admitted to Beijing Hospital from September 2018 to February 2019, were enrolled in this study. Patients with clinical diagnosis of heart failure or left ventricular ejection fraction(LVEF)<50% were excluded. The patients were divided into 2 groups based on the serum NT-proBNP level: low NT-proBNP group (<125 ng/L) and high NT-proBNP group(≥125 ng/L). Patients were followed up at 3, 6, and 12 months after enrollment, and the major adverse events were recorded. The composite endpoint events included all-cause mortality, readmission or Emergency Department visits. Cardiovascular events include death, readmission or emergency room treatment due to cardiogenic shock, myocardial infarction, angina pectoris, arrhythmia, heart failure or stroke/transient ischemic attack. Results: A total of 600 elderly patients with non-heart failure were included in the analysis. The average age was (74.9±6.5) years, including 304(50.7%) males. The median follow-up time was 344(265, 359) days. One hundred and seventy-eight(29.7%) composite endpoint events were recorded during the follow-up, 19(3.2%) patients died, and 12(2.0%) patients were lost to follow-up. There were 286(47.7%) cases in low NT-proBNP group and 314 cases(52.3%) in high NT-proBNP group. Patients were older, prevalence of atrial fibrillation and myocardial infarction was higher; MMSE scores and ADL scores, albumin and creatinine clearance rate were lower in high NT-proBNP group than in low NT-proBNP group(all P<0.05). At 1-year follow-up, the incidence of composite endpoint events was significantly higher in high NT-proBNP group than in low NT-proBNP group(33.4%(105/314) vs. 24.8%(71/286), P = 0.02). Cardiovascular events were more common in high NT-proBNP group than in low NT-proBNP group(17.5%(55/314) vs. 8.4%(24/286), P = 0.001). Kaplan-Meier survival analysis showed both composite endpoint events(Log-rank P=0.016) and cardiovascular events(Log-rank P=0.001) were higher in high NT-proBNP group than in low NT-proBNP group. All-cause mortality was also significantly higher in highNT-proBNP group than in lowNT-proBNP group(4.8%(15/314) vs. 1.4%(4/286), P = 0.020), and Kaplan-Meier survival analysis demonstrated borderline statistical significance(Log-rank P = 0.052). Cox proportional hazard regression analysis showed that after adjusting for age, sex, creatinine clearance rate, myocardial infarction, and atrial fibrillation, NT-proBNP remained as an independent risk factor for composite endpoint events(HR=1.376,95%CI 1.049-1.806, P=0.021), and cardiovascular events(HR=1.777, 95%CI 1.185-2.664, P=0.005), but not for all-cause mortality(P=0.206). Conclusions: NT-proBNP level at admission has important predictive value on rehospitalization and cardiovascular events for hospitalized elderly non-heart failure patients. NT-proBNP examination is helpful for risk stratification in this patient cohort.
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Affiliation(s)
- Y Y Li
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China; Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y D Liang
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - S M Yao
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - P P Zheng
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Z Zeng
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L L Cui
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - D Guo
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H Wang
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J F Yang
- Department of Cardiology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, China; Graduate School of Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Su GY, Zheng PP, Su YD, Cao K, Gao C, Zhang Y, Li B, Liang QF. [Therapeutic efficacy of ultraviolet combined with riboflavin for the rabbit bacterial keratitis]. Zhonghua Yan Ke Za Zhi 2018; 54:902-910. [PMID: 30526789 DOI: 10.3760/cma.j.issn.0412-4081.2018.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the effects of ultraviolet light combined with riboflavin treatment (corneal collagen-crosslinking, CXL) on infectious control and stromal reconstruction of bacterial keratitis. Methods: Experimental Study. A Staphylococcus aureus rabbit keratitis model was established by injecting Staphylococcus aureus broth into the shallow stromal layer of the right eye cornea of New Zealand white rabbits. Forty-four rabbits that successfully established the model were randomly divided into four groups: corneal collagen cross-linking (CXL) group, antibiotic group, CXL+ antibiotic group and untreated group, with 11 rabbits in each group. Before the treatment and at 3, 7, 14 and 28 days after treatment, slit lamp corneal examination, AS-OCT and in vivo confocal microscopy (IVCM) were performed. Clinical efficacy of different treatments were evaluated at different time points. Parameters including conjunctival hyperemia, corneal ulcer, infiltration, edema, and neovascular. Histopathological examinations of corneal lesions were performed in order to detect the infiltration, inflammatory cells and repair in corneal tissue. Normal data were compared with paired t-test and non-normal data were compared with paired rank sum test before and after treatment. Kruskal-Wallis rank sum test was used to compare 4 groups of data and the generalized estimation equation is used to compare the repeated measurement data at each time point and the comparison between the groups of the treatment groups. Results: After treatment, different time points and specimens for pathological observation, we obtained the following results:Conjunctival hyperemia: in CXL and CXL+ antibiotic groups after treatment for 3 days from treatment before 3 (2, -4) and 3 (2, -3),The reduction was 2 (1, -3) and 2 (1, -2), the difference was statistically significant (Z=-3.91, -5.50; P<0.008); 14 days, the antibiotic group changed from 3 (3, -4) to 2 (1, -2) after treatment, the difference was statistically significant (Z=-5.11, P<0.008); the untreated group had no statistical significance before and after treatment. After 14 days of treatment, the area of corneal ulcer (0.08±0.11) cm(2), (0.07±0.05) cm(2) in CXL group and CXL+ antibiotic group was significantly lower than that before treatment (0.40±0.18) cm(2), (0.49±0.24) cm(2). The difference was statistically significant. Significance (Z=-3.29, -3.64; P<0.008); after 14 days of treatment, after 14 days of treatment, neovascularization in the CXL and CXL+ antibiotic groups began to resolve, 1 (1, -2) and 1 (0, -2) at 7 days of treatment. decreased to 1 (1, -1) and 0 (0, -1), the difference was statistically significant (Z=4.57, 3.80; P<0.012 5); The degree of corneal edema was significantly reduced in the CXL group and the CXL+ antibiotic group at 14 days after treatment, which was reduced from (650±154) μm and (785±255) μm before the treatment to (432±95) μm and (455±109) μm, the difference was statistically significant (t=4.50, 4.92; P=0.00); The density of corneal stromal cells was also reduced from (446±257)/mm(2), (321±145)/mm(2) to (107±66)/mm(2), (114±94)/mm(2), the difference was statistically significant (t=4.15, 4.76; P<0.05). Histopathological observation under light microscope showed that most of the corneal ulcers healed in the CXL group and the CXL+ antibiotic group at 7 days of treatment. The epithelial cells were clearly visible and misaligned, and a small amount of neutrophils in the stromal layer. The upper epithelial layer was treated for 14 days. The cells are arranged neatly, the structure is clear, and the inflammatory cells are significantly reduced. Conclusion: Ultraviolet light combined with riboflavin corneal collagen cross-linking has a certain therapeutic effect on rabbit bacterial keratitis infection control and ulcer repair, and can be used as an auxiliary treatment for antibiotics. (Chin J Ophthalmol, 2018, 54:902-910).
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Affiliation(s)
- G Y Su
- Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Key Laboratory of Ophthalmology and Visual Sciences, Beijing 100005, China
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6
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Li PH, Zheng PP, Zhang TF, Wen GY, Shao HB, Luo QP. Fowl adenovirus serotype 4: Epidemiology, pathogenesis, diagnostic detection, and vaccine strategies. Poult Sci 2018; 96:2630-2640. [PMID: 28498980 DOI: 10.3382/ps/pex087] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 03/20/2017] [Indexed: 12/13/2022] Open
Abstract
Fowl adenovirus (FAdV) serotype-4 is highly pathogenic for chickens, especially for broilers aged 3 to 5 wk, and it has emerged as one of the foremost causes of economic losses to the poultry industry in the last 30 years. The liver is a major target organ of FAdV-4 infections, and virus-infected chickens usually show symptoms of hydropericardium syndrome. The virus is very contagious, and it is spread both vertically and horizontally. It can be isolated from infected liver homogenates and detected by several laboratory diagnostic methods (including an agar gel immunodiffusion test, indirect immunofluorescence assays, counterimmunoelectrophoresis, enzyme-linked immunosorbent assays, restriction endonuclease analyses, polymerase chain reaction (PCR), real-time PCR, and high-resolution melting-curve analyses). Although inactivated vaccines have been deployed widely to control the disease, attenuated live vaccines and subunit vaccines also have been developed, and they are more attractive vaccine candidates. This article provides a comprehensive review of FAdV-4, including its epidemiology, pathogenesis, diagnostic detection, and vaccine strategies.
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Affiliation(s)
- P H Li
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture), Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China.,Key Laboratory of Special Pathogens and Biosafety, Wuhan Institute of Virology, Chinese Academy of Science, Wuhan, China
| | - P P Zheng
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture), Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China.,Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China
| | - T F Zhang
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture), Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China.,Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China
| | - G Y Wen
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture), Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China.,Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China
| | - H B Shao
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture), Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China.,Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China
| | - Q P Luo
- Key Laboratory of Prevention and Control Agents for Animal Bacteriosis (Ministry of Agriculture), Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China.,Hubei Key Laboratory of Animal Embryo and Molecular Breeding, Institute of Animal Husbandry and Veterinary Sciences, Hubei Academy of Agricultural Sciences, Special 1, Nanhuyaoyuan, Hongshan District, Wuhan, 430064, China
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Pierini A, Iliopoulou BP, Peiris H, Pérez-Cruz M, Baker J, Hsu K, Gu X, Zheng PP, Erkers T, Tang SW, Strober W, Alvarez M, Ring A, Velardi A, Negrin RS, Kim SK, Meyer EH. T cells expressing chimeric antigen receptor promote immune tolerance. JCI Insight 2017; 2:92865. [PMID: 29046484 DOI: 10.1172/jci.insight.92865] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 09/14/2017] [Indexed: 12/22/2022] Open
Abstract
Cellular therapies based on permanent genetic modification of conventional T cells have emerged as a promising strategy for cancer. However, it remains unknown if modification of T cell subsets, such as Tregs, could be useful in other settings, such as allograft transplantation. Here, we use a modular system based on a chimeric antigen receptor (CAR) that binds covalently modified mAbs to control Treg activation in vivo. Transient expression of this mAb-directed CAR (mAbCAR) in Tregs permitted Treg targeting to specific tissue sites and mitigated allograft responses, such as graft-versus-host disease. mAbCAR Tregs targeted to MHC class I proteins on allografts prolonged islet allograft survival and also prolonged the survival of secondary skin grafts specifically matched to the original islet allograft. Thus, transient genetic modification to produce mAbCAR T cells led to durable immune modulation, suggesting therapeutic targeting strategies for controlling alloreactivity in settings such as organ or tissue transplantation.
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Affiliation(s)
- Antonio Pierini
- Division of Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, California, USA.,Department of Medicine, Hematopoietic Stem Cell Transplantation Program, University of Perugia, Perugia, Italy
| | - Bettina P Iliopoulou
- Division of Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, California, USA
| | - Heshan Peiris
- Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, USA
| | - Magdiel Pérez-Cruz
- Division of Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, California, USA
| | - Jeanette Baker
- Division of Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, California, USA
| | - Katie Hsu
- Division of Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, California, USA
| | - Xueying Gu
- Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, USA
| | - Ping-Ping Zheng
- Division of Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, California, USA
| | - Tom Erkers
- Division of Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, California, USA
| | - Sai-Wen Tang
- Division of Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, California, USA
| | - William Strober
- Division of Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, California, USA
| | - Maite Alvarez
- Division of Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, California, USA
| | - Aaron Ring
- Department of Molecular and Cellular Physiology, Stanford University, Stanford, California, USA
| | - Andrea Velardi
- Department of Medicine, Hematopoietic Stem Cell Transplantation Program, University of Perugia, Perugia, Italy
| | - Robert S Negrin
- Division of Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, California, USA
| | - Seung K Kim
- Department of Developmental Biology, Stanford University School of Medicine, Stanford, California, USA
| | - Everett H Meyer
- Division of Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, California, USA
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8
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Xu L, You X, Zheng P, Zhang BM, Gupta PK, Lavori P, Meyer E, Zehnder JL. Methodologic Considerations in the Application of Next-Generation Sequencing of Human TRB Repertoires for Clinical Use. J Mol Diagn 2016; 19:72-83. [PMID: 27815002 DOI: 10.1016/j.jmoldx.2016.07.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 06/24/2016] [Accepted: 07/28/2016] [Indexed: 01/08/2023] Open
Abstract
Next-generation sequencing (NGS) of immune receptors has become a standard tool to assess minimal residual disease (MRD) in patients treated for lymphoid malignancy, and it is being used to study the T-cell repertoire in many clinical settings. To better understanding the potential clinical utility and limitations of this application outside of MRD, we developed a BIOMED-2 primer-based NGS method and characterized its performance in controls and patients with graft-versus-host disease (GVHD) after allogeneic hematopoietic transplant. For controls and patients with GVHD, replicate sequencing of the same T-cell receptor β (TRB) libraries was highly reproducible. Higher variability was observed in sequencing of different TRB libraries made from the same DNA stock. Variability was increased in patients with GVHD compared with controls; patients with GVHD also had lower diversity than controls. In the T-cell repertoire of a healthy person, approximately 99.6% of the CDR3 clones were in low abundance, with frequency <10-3. A single library could identify >93% of the clones with frequency ≥10-3 in the repertoire. Sequencing in duplicate increased the average detection rate to >97%. This work demonstrates that NGS reliably and robustly characterizes TRB populations in healthy individuals and patients with GVHD with frequency ≥10-3 and provides a methodologic framework for applying NGS immune repertoire methods to clinical testing applications beyond MRD.
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Affiliation(s)
- Liwen Xu
- Department of Pathology, Stanford School of Medicine, Stanford University, Stanford, California
| | - Xiaoqing You
- Department of Pathology, Stanford School of Medicine, Stanford University, Stanford, California
| | - PingPing Zheng
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford School of Medicine, Stanford University, Stanford, California
| | - Bing M Zhang
- Department of Pathology, Stanford School of Medicine, Stanford University, Stanford, California
| | - Puja K Gupta
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford School of Medicine, Stanford University, Stanford, California
| | - Philip Lavori
- Department of Biomedical Data Science, Stanford School of Medicine, Stanford University, Stanford, California
| | - Everett Meyer
- Division of Blood and Marrow Transplantation, Department of Medicine, Stanford School of Medicine, Stanford University, Stanford, California
| | - James L Zehnder
- Department of Pathology, Stanford School of Medicine, Stanford University, Stanford, California.
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Zheng PP, Wang BY, Wang F, Ao R, Wang Y. Esophageal space-occupying lesion caused by Ascaris lumbricoides. World J Gastroenterol 2012; 18:1552-4. [PMID: 22509089 PMCID: PMC3319953 DOI: 10.3748/wjg.v18.i13.1552] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Revised: 01/06/2012] [Accepted: 01/18/2012] [Indexed: 02/06/2023] Open
Abstract
Ascaris lumbricoides is the largest intestinal nematode parasite of man, which can lead to various complications because of its mobility. As the esophagus is not normal habitat of Ascaris, the report of esophageal ascariasis is rare. An old female presented with dysphagia after an intake of several red bean buns and haw jellies. The barium meal examination revealed a spherical defect in the lower esophagus. Esophageal bezoar or esophageal carcinoma was considered at the beginning. The patient fasted, and received fluid replacement treatment as well as some oral drugs such as proton pump inhibitor and sodium bicarbonate. Then upper gastrointestinal endoscopy was done to further confirm the diagnosis and found a live Ascaris lumbricoides in the gastric antrum and two in the duodenal bulb. The conclusive diagnosis was ascariasis. The esophageal space-occupying lesion might be the entangled worm bolus. Anthelmitnic treatment with mebendazole improved patient’s clinical manifestations along with normalization of the radiological findings during a 2-wk follow-up. Authors report herein this rare case of Ascaris lumbricoides in the esophagus, emphasizing the importance of awareness of this parasitic infection as it often presents with different and unspecific symptoms.
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Mao RM, Zheng PP, Zhu CR, Zhu BL. [The analysis of pericardial fluid in forensic practice]. Fa Yi Xue Za Zhi 2010; 26:202-205. [PMID: 20707281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Pericardial fluid is a kind of serous fluid in pericardial cavity. Because blood undergoes postmortem changes such as autolysis and putrefaction, vitreous humor is limited,cerebrospinal fluid is easily mixed with blood, pericardial fluid, on the other hand, exists in a closed cavity and can be hardly contaminated by postmortem changes, and also is easily obtained. Pericardial fluid not only plays an important role in clinic practice, but also is widely applicable in forensic practice. This paper briefly presented the properties of pericardial fluid and its clinical significance. It reviewed biochemical changes in decedents died of heart diseases, drowning and asphyxia, and explored the significance in medico-legal investigation. Moreover, application of pericardial fluid in forensic serology, forensic toxicological analysis and other fields were also discussed. Pericardial fluid analysis may provide important information for determination of the cause of death with further investigation concerning forensic applicability of pericardial fluid.
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Affiliation(s)
- Rui-Ming Mao
- School of Forensic Medicine, China Medical University, Shenyang 110001, China.
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Affiliation(s)
- Li Jie
- Anhui Normal University, China
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Tong CY, Zheng PP, Pang JC, Poon WS, Chang AR, Ng HK. Identification of novel regions of allelic loss in ependymomas by high-resolution allelotyping with 384 microsatellite markers. J Neurosurg 2001; 95:9-14. [PMID: 11453403 DOI: 10.3171/jns.2001.95.1.0009] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
OBJECT Ependymomas are rare glial neoplasms; little is known about the molecular pathogenesis of this tumor entity. In a previous study the authors found multiple genomic imbalances in ependymomas resected in 20 adults and eight children, including loss of chromosomes 1p, 6, 16, 17, 19q, 20q, and 22q, as well as gain of chromosomes 4q, 5q, 7q, 9q, and 12q on comparative genomic hybridization. The aim of this study was to map in more detail the commonly affected regions in ependymomas. METHODS A comprehensive allelotype analysis of 16 ependymomas was conducted using 384 microsatellite markers that span the 22 autosomes. Based on this high-resolution loss of heterozygosity analysis, multiple overlapping deletion regions were identified as follows: 6q25.2-27, 16p12-13.1, 16q22.3-24.1, 17q22-24, 19q12-13.2, 20q13.2-13.3, and 22q13.1-13.3. CONCLUSIONS These data confirmed previous reports that loss of chromosomes 17 and 22 were common in ependymomas. Moreover, the authors were able to identify loss of chromosomes 13, 16, 19, and 20 as novel findings in ependymomas. It is believed that potential tumor suppressor genes that reside in these commonly deleted regions may contribute to the molecular tumorigenesis of ependymomas.
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Affiliation(s)
- C Y Tong
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong
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Zheng PP, Pang JC, Hui AB, Ng HK. Comparative genomic hybridization detects losses of chromosomes 22 and 16 as the most common recurrent genetic alterations in primary ependymomas. Cancer Genet Cytogenet 2000; 122:18-25. [PMID: 11104027 DOI: 10.1016/s0165-4608(00)00265-x] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this study, we used comparative genomic hybridization to provide an overview of chromosomal imbalances in a series of 20 adult and 8 childhood ependymomas. All tumors displayed multiple genomic imbalances. Loss of genetic material was observed in chromosomes 22q (71%), 16 (57%), 17 (46%), 6 (39%), 19q (32%), 20q (32%), and 1p (29%), with the overlapped deletion regions determined at 16p13.1-13.3, 16q22-q24, 19q13.1-13.4, 20q13.1-13.2 and 1p36.1-36.3. Gain of DNA was commonly detected on chromosomes 5q (46%), 12q (39%), 7q (36%), 9q (36%), and 4q (32%), with overlapped regions of gain mapped to 5q21-22, 12q15-24.1, 7q11.2-31.2, 9q12-32, and 4q23-28, respectively. These findings suggest a greater degree of genomic imbalance in ependymomas than has been recognized previously and highlight chromosomal loci likely to contain oncogenes or tumor suppressor genes that may contribute to the molecular pathogenesis of this tumor. Our study also confirmed previous findings on frequent losses of 17 and 22q in ependymomas and further identified chromosome 16 loss as a common recurrent genetic aberration in ependymomas.
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Affiliation(s)
- P P Zheng
- Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin
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