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Liu C, Shen X, Yan L, Qu R, Wang Y, He Y, Zhan Z, Chen P, Lin F. Controllable self-assembled DNA nanomachine enable homogeneous rapid electrochemical one-pot assay of lung cancer circulating tumor cells. Biosens Bioelectron 2024; 246:115865. [PMID: 38035517 DOI: 10.1016/j.bios.2023.115865] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 12/02/2023]
Abstract
A homogeneous rapid (45 min) one-pot electrochemical (EC) aptasensor was established to quantitatively detect circulating tumor cells (CTCs) in lung cancer patients using mucin 1 as a marker. The core of this study is that the three single-stranded DNA (Y1, Y2, and Y3) could be hybridized to form Y-shaped DNA (Y-DNA) and further self-assemble to form DNA nanosphere. The aptamer of mucin 1 could be complementary and paired with Y1, thus disrupting the conformation of the DNA nanosphere. When mucin 1 was present, the aptamer combined specifically with mucin 1, thus preserving the DNA nanosphere structure. Methylene blue (MB) acted as a signal reporter, which could be embedded between two base pairs in the DNA nanosphere to form a DNA nanosphere-MB complex, reducing free MB and resulting in a lower electrochemical signal. The results demonstrated that the linear ranges for mucin 1 and A549 cells were 1 ag/mL-1 fg/mL and 1-100 cells/mL, respectively, with minimum detectable concentrations were 1 ag/mL and 1 cell/mL, respectively. The quantitative analysis of CTCs in 44 clinical blood samples was performed, and the results were consistent with the computerized tomography (CT) images, pathological findings and folate receptor-polymerase chain reaction (FR-PCR) kits. The receiver operating characteristic (ROC) curve exhibited an area under the curve (AUC) value of 0.970. The assay revealed 100% specificity and 94.1% sensitivity. It is believed that this electrochemical aptasensor could provide a new approach to detect CTCs.
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Affiliation(s)
- Chengxin Liu
- Department of Thoracic Surgery, Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xu Shen
- Department of Thoracic Surgery, Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Li Yan
- Department of Thoracic Surgery, Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Runlian Qu
- Department of Thoracic Surgery, Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yue Wang
- Department of Thoracic Surgery, Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Yaqin He
- Department of Thoracic Surgery, Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Zixuan Zhan
- Department of Thoracic Surgery, Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Piaopiao Chen
- Department of Thoracic Surgery, Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
| | - Feng Lin
- Department of Thoracic Surgery, Department of Laboratory Medicine, Med+X Center for Manufacturing, Out-patient Department, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
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Zingue S, Mindang ELN, Awounfack FC, Kalgonbe AY, Kada MM, Njamen D, Ndinteh DT. Oral administration of tartrazine (E102) accelerates the incidence and the development of 7,12-dimethylbenz(a) anthracene (DMBA)-induced breast cancer in rats. BMC Complement Med Ther 2021; 21:303. [PMID: 34972512 PMCID: PMC8720219 DOI: 10.1186/s12906-021-03490-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 12/10/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Despite the considerable advances made in the treatment of cancer, it remains a global threat. Tartrazine (E102) is a synthetic dye widely used in food industries; it has recently been shown to induce oxidative stress (a well known risk factor of cancer) in rat tissues. The present work therefore aimed to assess the impact of a regular consumption of tartrazine on the incidence of breast cancer in rats. METHODS Forty (40) Wistar rats aged 55 to 60 days were randomly assigned into 5 groups (n = 8) including two groups serving as normal controls and receiving distilled water (NOR) or tartrazine (NOR + TARZ). The three remaining groups were exposed to the carcinogen DMBA (50 mg/kg) and treated for 20 weeks with either distilled water (DMBA), tartrazine 50 mg/kg (DMBA + TARZ) or a natural dye (DMBA + COL). The parameters evaluated were the incidence, morphology and some biomarkers (CA 15-3, estradiol and α-fetoprotein) of breast cancer. The oxidative status and histomorphology of the tumors were also assessed. RESULTS A regular intake of tartrazine led to an early incidence of tumors (100% in rats that received TARZ only vs 80% in rats that received DMBA only), with significantly larger tumors (p < 0.001) (mass = 3500 mg/kg and volume = 4 cm3). The invasive breast carcinoma observed on the histological sections of the animals of the DMBA + TARZ group was more developed than those of the DMBA group. The increase in serum α-fetoprotein (p < 0.05) and CA 15-3 (p < 0.01) levels corroborate the changes observed in tumors. The presence of oxidative activity in animals of the DMBA + TARZ group was confirmed by a significant decrease (p < 0.001) in the activity of antioxidant enzymes (SOD and catalase) as well as the level of GSH and increase in the level of MDA compared to the rats of the DMBA and NOR groups. CONCLUSION Tartrazine therefore appears to be a promoter of DMBA-induced breast tumorigenesis in rats through its oxidative potential. This work encourages further studies on the mechanisms of action of tartrazine (E102) and its limits of use.
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Affiliation(s)
- Stéphane Zingue
- Department of Medical and Biomedical Engineering, Higher Technical Teachers' Training College, University of Yaoundé 1, P.O. Box 886, Ebolowa, Cameroon.
- Department of Life and Earth Sciences, Higher Teachers' Training College, University of Maroua, P.O. Box 55, Maroua, Cameroon.
- Centre for Natural Product Research, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg, 2028, South Africa.
| | | | - Florence Charline Awounfack
- Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaounde, Cameroon
| | - Abel Yanfou Kalgonbe
- Department of Life and Earth Sciences, Higher Teachers' Training College, University of Maroua, P.O. Box 55, Maroua, Cameroon
| | - Moustapha Mohamet Kada
- Department of Life and Earth Sciences, Higher Teachers' Training College, University of Maroua, P.O. Box 55, Maroua, Cameroon
| | - Dieudonné Njamen
- Centre for Natural Product Research, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg, 2028, South Africa
- Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaounde, Cameroon
| | - Derek Tantoh Ndinteh
- Centre for Natural Product Research, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg, 2028, South Africa.
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Abstract
CASE PRESENTATION A 58-year-old woman was referred to our department with a cough of 1 year duration; her condition was unresponsive to the administration of inhaled steroid and beta-2 agonists. She denied the presence of dyspnea, chest pain, or other extrapulmonary symptoms. She was a never-smoker with a negative medical history and no occupational or domestic exposures. There was no history of cancer, gastroesophageal reflux disease, asthma, allergic rhinitis, or other allergies.
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Affiliation(s)
| | - Demosthenes Bouros
- Athens Medical Center, Athens, Greece; First Academic Department of Pneumonology, Interstitial Lung Diseases Unit, Hospital for Diseases of the Chest, "Sotiria," Medical School, National and Kapodistrian University of Athens, Athens, Greece.
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Lu W, Liu X, Wang T, Liu F, Zhu A, Lin Y, Luo J, Ye F, He J, Zhao J, Li Y, Zhong N. Elevated MUC1 and MUC5AC mucin protein levels in airway mucus of critical ill COVID-19 patients. J Med Virol 2021; 93:582-584. [PMID: 32776556 PMCID: PMC7436726 DOI: 10.1002/jmv.26406] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/05/2020] [Accepted: 08/06/2020] [Indexed: 01/08/2023]
Affiliation(s)
- Wenju Lu
- Division of Respiratory Medicine, State Key Laboratory of Respiratory Diseases, Guangdong Key Laboratory of Vascular Diseases, National Clinical Research Center for Respiratory DiseasesGuangzhou Institute of Respiratory HealthGuangzhouGuangdongChina
| | - Xiaoqing Liu
- Division of Respiratory Medicine, State Key Laboratory of Respiratory Diseases, Guangdong Key Laboratory of Vascular Diseases, National Clinical Research Center for Respiratory DiseasesGuangzhou Institute of Respiratory HealthGuangzhouGuangdongChina
- Department of Critical Care MedicineThe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouGuangdongChina
| | - Tao Wang
- Division of Respiratory Medicine, State Key Laboratory of Respiratory Diseases, Guangdong Key Laboratory of Vascular Diseases, National Clinical Research Center for Respiratory DiseasesGuangzhou Institute of Respiratory HealthGuangzhouGuangdongChina
| | - Fei Liu
- Division of Respiratory Medicine, State Key Laboratory of Respiratory Diseases, Guangdong Key Laboratory of Vascular Diseases, National Clinical Research Center for Respiratory DiseasesGuangzhou Institute of Respiratory HealthGuangzhouGuangdongChina
| | - Airu Zhu
- Division of Respiratory Medicine, State Key Laboratory of Respiratory Diseases, Guangdong Key Laboratory of Vascular Diseases, National Clinical Research Center for Respiratory DiseasesGuangzhou Institute of Respiratory HealthGuangzhouGuangdongChina
| | - Yongping Lin
- Division of Respiratory Medicine, State Key Laboratory of Respiratory Diseases, Guangdong Key Laboratory of Vascular Diseases, National Clinical Research Center for Respiratory DiseasesGuangzhou Institute of Respiratory HealthGuangzhouGuangdongChina
| | | | - Feng Ye
- Division of Respiratory Medicine, State Key Laboratory of Respiratory Diseases, Guangdong Key Laboratory of Vascular Diseases, National Clinical Research Center for Respiratory DiseasesGuangzhou Institute of Respiratory HealthGuangzhouGuangdongChina
| | - Jianxing He
- Division of Respiratory Medicine, State Key Laboratory of Respiratory Diseases, Guangdong Key Laboratory of Vascular Diseases, National Clinical Research Center for Respiratory DiseasesGuangzhou Institute of Respiratory HealthGuangzhouGuangdongChina
| | - Jincun Zhao
- Division of Respiratory Medicine, State Key Laboratory of Respiratory Diseases, Guangdong Key Laboratory of Vascular Diseases, National Clinical Research Center for Respiratory DiseasesGuangzhou Institute of Respiratory HealthGuangzhouGuangdongChina
| | - Yiming Li
- Division of Respiratory Medicine, State Key Laboratory of Respiratory Diseases, Guangdong Key Laboratory of Vascular Diseases, National Clinical Research Center for Respiratory DiseasesGuangzhou Institute of Respiratory HealthGuangzhouGuangdongChina
- Department of Critical Care MedicineThe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouGuangdongChina
| | - Nanshan Zhong
- Department of Critical Care MedicineThe First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouGuangdongChina
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Xie Q, Li F, Zhao S, Guo T, Li Z, Fang L, Wang S, Liu W, Gu C. GalNAc-T3 and MUC1, a combined predictor of prognosis and recurrence in solitary pulmonary adenocarcinoma initially diagnosed as malignant solitary pulmonary nodule (≤ 3 cm). Hum Cell 2020; 33:1252-1263. [PMID: 32776306 DOI: 10.1007/s13577-020-00400-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 07/13/2020] [Indexed: 12/20/2022]
Abstract
The significance of the polypeptide N-acetyl-galactosaminyl transferase-3 (GalNAc-T3) and mucin 1 (MUC1) in solitary pulmonary adenocarcinoma (SPA) initially diagnosed as malignant solitary pulmonary nodule (≤ 3 cm), especially as a combined predictor of prognosis and recurrence, was explored in this study. A retrospective analysis of 83 patients with SPA (≤ 3 cm), which revealed postoperative pathological diagnosis was lung adenocarcinoma after complete resection. Immunohistochemical staining was used to detect the expression of GalNAc-T3 and MUC1 in primary tumor specimens. The relationship between expression and various clinicopathological factors was analyzed, as well as the effects of patients' overall survival (OS) and disease-free survival (DFS). In all patients, GalNAc-T3 was highly expressed in 53 (63.9%) cases; MUC1 was highly expressed in 31 (37.3%) cases. The GalNAc-T3 expression was correlated with differentiation, pathological risk group, N stage, and TNM stage. The group with high GalNAc-T3 expression and low MUC1 expression (GalNAc-T3Hig/MUC1Low) is correlated to pathological differentiation and has a trend related to the TNM stage. The patients with better differentiation, lower pathological risk group, lower N stage, and GalNAc-T3 high expression had better overall survival, especially the GalNAc-T3Hig/MUC1Low group. Moreover, the moderate differentiation, N3 stage, and GalNAc-T3Hig/MUC1Low group were independent predictive factors for OS. Besides, patients with lower N stage, lower TNM stage, higher GalNAc-T3 expression got better disease-free survival (DFS), especially the GalNAc-T3Hig/MUC1Low group. The GalNAc-T3Hig/MUC1Low group was an independent predictive factor for DFS. In conclusion, GalNAc-T3 and MUC1 were combined predictors of prognosis and recurrence in SPA (≤ 3 cm).
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Affiliation(s)
- Qiang Xie
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, 222 Zhongshan Road, Dalian, 116011, Liaoning, People's Republic of China
- Lung Cancer Diagnosis and Treatment Center of Dalian, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, People's Republic of China
| | - Fengzhou Li
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, 222 Zhongshan Road, Dalian, 116011, Liaoning, People's Republic of China
- Lung Cancer Diagnosis and Treatment Center of Dalian, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, People's Republic of China
| | - Shilei Zhao
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, 222 Zhongshan Road, Dalian, 116011, Liaoning, People's Republic of China
- Lung Cancer Diagnosis and Treatment Center of Dalian, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, People's Republic of China
| | - Tao Guo
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, 222 Zhongshan Road, Dalian, 116011, Liaoning, People's Republic of China
- Lung Cancer Diagnosis and Treatment Center of Dalian, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, People's Republic of China
| | - Zhuoshi Li
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, 222 Zhongshan Road, Dalian, 116011, Liaoning, People's Republic of China
- Lung Cancer Diagnosis and Treatment Center of Dalian, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, People's Republic of China
| | - Lei Fang
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, 222 Zhongshan Road, Dalian, 116011, Liaoning, People's Republic of China
- Lung Cancer Diagnosis and Treatment Center of Dalian, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, People's Republic of China
| | - Shiqing Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, 222 Zhongshan Road, Dalian, 116011, Liaoning, People's Republic of China
- Lung Cancer Diagnosis and Treatment Center of Dalian, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, People's Republic of China
| | - Wenzhi Liu
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, 222 Zhongshan Road, Dalian, 116011, Liaoning, People's Republic of China
- Lung Cancer Diagnosis and Treatment Center of Dalian, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, People's Republic of China
| | - Chundong Gu
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, 222 Zhongshan Road, Dalian, 116011, Liaoning, People's Republic of China.
- Lung Cancer Diagnosis and Treatment Center of Dalian, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, Liaoning, People's Republic of China.
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Chen C, Chen Q, Dong Y, Liu X. The Clinical Significance of sICAM-1 in Differentiating Benign Breast Lesions from Breast Cancer. Ann Clin Lab Sci 2020; 50:650-656. [PMID: 33067211] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
OBJECTIVE Breast cancer is a common type of malignant tumour worldwide and the second leading cause of death in women. The present study aims to investigate the clinical significance of serum soluble intercellular adhesion molecule-1 (sICAM-1) in differentiating benign breast lesions from breast cancer. METHODS Plasma samples were obtained from 200 breast cancer patients, 47 patients with benign breast lesions and 50 age- and sex-matched healthy individuals as controls. Plasma levels of sICAM-1 were measured in all the samples using commercially available enzyme-linked immune-sorbent assay (ELISA) kits. The serum levels of carcinoembryonic antigen (CEA) and cancer antigen 15-3 (CA15-3) were detected by the UniCel® DxI 800 Immunoassay System with matched kits. RESULTS The plasma levels of CEA and CA15-3 were 1.22±0.2 (ng/mL) and 6.39±1.5 (ng/mL) in the healthy control group, 1.40±0.3 (ng/mL) and 5.81±2.1 (ng/mL) in the benign breast lesion (BBL) group, and 5.29±0.6 (ng/mL) and 27.08±5.7 (ng/ mL) in the breast cancer (BC) group. Plasma levels of CEA and CA15-3 in the BC group were significantly higher than those in the BBL and healthy control groups (all P<0.05), but the plasma levels of CEA and CA15-3 were not significantly different between the BBL group and the healthy control group, P=0.548 and P=0.2976, respectively. The diagnostic sensitivity and specificity were 13.4% and 98.0% for CEA and 22.2% and 100.0% for CA15-3. For plasma sICAM-1, the diagnostic sensitivity and specificity were 98% and 94% at a cut-off value of 20.0 (ng/mL), with an area under the receiver operating characteristic (ROC) curve of 0.99, which could be used to distinguish between healthy controls and the BC group; the diagnostic sensitivity and specificity were 95.5% and 94.0% at a cut-off value of 20.0 (ng/mL) with an area under the ROC curve of 0.98, which could be used to distinguish between healthy controls and the BBL group; and the diagnostic sensitivity and specificity were 44.6% and 94.1% at a cut-off value of 40.0 (ng/mL), with an area under ROC curve of 0.68, which could be used to distinguish between the BBL group and the BC group. The plasma levels of sICAM-1 were 15.43±2.3 (ng/mL) in healthy controls, 29.8±3.5 (ng/ mL) in the BBL group, and 50.07±12.2 (ng/mL) in the BC group. The plasma level of sICAM-1 in the BC group was the highest among all three groups (all P<0.05). CONCLUSIONS The CEA, CA15-3 and sICAM-1 levels were increased in breast cancer patients, especially in those with node and/or organ metastasis. After diagnosis, CEA, CA15-3 and sICAM-1 levels are closely related to tumour metastasis. sICAM-1 has great potential value in the clinical diagnosis of benign breast lesions and breast cancer.
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Affiliation(s)
- Changguo Chen
- Department of Clinical Laboratory, the Sixth Medical Center of PLA General Hospital, Beijing, China
- Department of Clinical Laboratory, the Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Qiuyuan Chen
- Department of Clinical Laboratory, the Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Youyou Dong
- Department of Clinical Laboratory, the Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Xinping Liu
- Department of Clinical Laboratory, the Sixth Medical Center of PLA General Hospital, Beijing, China
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Berastegui C, Gómez-Ollés S, Mendoza-Valderrey A, Pereira-Veiga T, Culebras M, Monforte V, Saez B, López-Meseguer M, Sintes-Permanyer H, Ruiz de Miguel V, Bravo C, Sacanell J, Ramon MA, Romero L, Deu M, Román A. Use of serum KL-6 level for detecting patients with restrictive allograft syndrome after lung transplantation. PLoS One 2020; 15:e0226488. [PMID: 31929536 PMCID: PMC6957146 DOI: 10.1371/journal.pone.0226488] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 11/27/2019] [Indexed: 11/24/2022] Open
Abstract
KL-6 is an antigen produced mainly by damaged type II pneumocytes that is involved in interstitial lung disease. Chronic lung allograft dysfunction (CLAD) after lung transplantation (LT) is a major concern for LT clinicians, especially in patients with restrictive allograft syndrome (RAS). We investigated KL-6 levels in serum and bronchoalveolar lavage fluid (BALF) as a potential biomarker of the RAS phenotype. Levels of KL-6 in serum and BALF were measured in 73 bilateral LT recipients, and patients were categorized into 4 groups: stable (ST), infection (LTI), bronchiolitis obliterans syndrome (BOS), and RAS. We also studied a healthy cohort to determine reference values for serum KL-6. The highest levels of KL-6 were found in the serum of patients with RAS (918 [487.8–1638] U/mL). No differences were found for levels of KL-6 in BALF. Using a cut-off value of 465 U/mL serum KL-6 levels was able to differentiate RAS patients from BOS patients with a sensitivity of 100% and a specificity of 75%. Furthermore, higher serum KL-6 levels were associated with a decline in Forced Vital Capacity (FVC) at 6 months after sample collection. Therefore, KL-6 in serum may well be a potential biomarker for differentiating between the BOS and RAS phenotypes of CLAD in LT recipients.
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Affiliation(s)
- Cristina Berastegui
- Servei de Pneumologia, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Susana Gómez-Ollés
- Servei de Pneumologia, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
- Ciber Enfermedades Respiratorias (Ciberes)
- * E-mail:
| | - Alberto Mendoza-Valderrey
- Servei de Pneumologia, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Thais Pereira-Veiga
- Servei de Pneumologia, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Mario Culebras
- Servei de Pneumologia, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Victor Monforte
- Servei de Pneumologia, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
- Ciber Enfermedades Respiratorias (Ciberes)
| | - Berta Saez
- Servei de Pneumologia, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Manuel López-Meseguer
- Servei de Pneumologia, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Helena Sintes-Permanyer
- Servei de Pneumologia, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Victoria Ruiz de Miguel
- Servei de Pneumologia, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Carlos Bravo
- Servei de Pneumologia, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
- Ciber Enfermedades Respiratorias (Ciberes)
| | - Judit Sacanell
- Servei de Medicina Intensiva, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - María-Antonia Ramon
- Servei de Pneumologia, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Laura Romero
- Servei de Cirurgia Toràcica, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - María Deu
- Servei de Cirurgia Toràcica, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Antonio Román
- Servei de Pneumologia, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
- Ciber Enfermedades Respiratorias (Ciberes)
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Gao JW, Chen MM, Wen W, Zhang X, Wang S, Huang WH. Au-Luminol-decorated porous carbon nanospheres for the electrochemiluminescence biosensing of MUC1. Nanoscale 2019; 11:16860-16867. [PMID: 31482914 DOI: 10.1039/c9nr02190f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Electrochemiluminescence (ECL) nanomaterials are usually deposited compactly on the surface of electrodes, which may cause poor mass transfer of reactants, thereby resulting in low ECL efficiency. In this work, we developed a novel kind of luminescent material denoted as C-Au-luminol nanospheres (C-Au-Lum NSs) by high dispersion of luminophores on porous carbon nanospheres (PCNSs). C-Au-Lum NSs were facilely prepared by the in situ reduction of chloroauric acid with the luminescent reagent luminol (Lum) on the nano-pores of PCNSs. Plenty of luminescent Au-Lum NPs were dispersedly concentrated inside the numerous pores and hollow interiors of PCNSs, effectively increasing the mass transfer of reagents and accelerating the electron transport inside the porous nanospheres. This greatly improved the availability of luminophores and endowed C-Au-Lum NSs with excellent ECL emission. After further integrating with enzymatic circulation and strand displacement, an ultrasensitive ECL biosensor was achieved for the ultrasensitive detection of an important tumor biomarker, mucin1. The logarithmically linear range from 0.1 pg mL-1 to 1 ng mL-1 with the detection limit of 47.6 fg mL-1 (S/N = 3) was achieved, demonstrating the superior performance of C-Au-Lum NSs. This work would provide new ideas for the construction of high-performance ECL sensing platforms for diverse applications.
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Affiliation(s)
- Jing-Wen Gao
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministryof Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules&College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China.
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Zheng J, Peng X, Wang Y, Bao T, Wen W, Zhang X, Wang S. An exonuclease-assisted triple-amplified electrochemical aptasensor for mucin 1 detection based on strand displacement reaction and enzyme catalytic strategy. Anal Chim Acta 2019; 1086:75-81. [PMID: 31561796 DOI: 10.1016/j.aca.2019.08.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/07/2019] [Accepted: 08/12/2019] [Indexed: 12/12/2022]
Abstract
The development of some sensitive methods for MUC1 is critical for preclinical diagnosis of tumors. In this experiment, we built a triple-amplified electrochemical aptasensor to achieve sensitive detection of MUC1, which was based on exonuclease III (Exo III)-assisted with strand displacement reaction and enzyme catalytic strategy. Firstly, with the help of Exo III, MUC1 and aptamer could be recycled during the cycle I, the single stranded DNA-1 (S-1) was produced during the process and was introduced to the hybride reaction on the electrode. Secondly, during the cycle II, strand displacement reaction was triggered on the electrode with the adding of hairpin DNA-2 (H-2). Thirdly, after the gold nanoparticles (AuNPs)-DNA-enzyme conjugates hybrided with the H-2 on the electrode, the AuNPs-DNA-enzyme conjugates could act as signal probe to produce electrochemical catalytic signal. We used the fabricated triple-amplified electrochemical aptasensor that could detect MUC1 from 0.1 pg mL-1 to 10 ng mL-1 with the detection limit of 0.04 pg mL-1 under the optimized experimental conditions. The constructed triple-amplified electrochemical aptasensor could be applied in real samples determination. Besides, the strategy can be applied to detect other proteins for health monitoring.
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Affiliation(s)
- Jiaxin Zheng
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, PR China
| | - Xiaolun Peng
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, PR China
| | - Yijia Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, PR China
| | - Ting Bao
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, PR China
| | - Wei Wen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, PR China
| | - Xiuhua Zhang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, PR China
| | - Shengfu Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan, 430062, PR China.
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Yang Y, Hu GB, Liang WB, Yao LY, Huang W, Yuan R, Xiao DR. A highly sensitive self-enhanced aptasensor based on a stable ultrathin 2D metal-organic layer with outstanding electrochemiluminescence property. Nanoscale 2019; 11:10056-10063. [PMID: 31089604 DOI: 10.1039/c9nr00860h] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
3D bulk metal-organic frameworks (MOFs) have received growing interest in electrochemiluminescence (ECL) assays because they can provide a high specific surface for loading a large quantity of ECL luminophores, but the ECL efficiency of bulk MOFs is still low since some interior luminophores are difficult to be excited. Herein, an ultrathin 2D metal-organic layer (MOL) for grafting self-enhanced ruthenium complexes (Ru-l-Lys) was first synthesized to greatly increase the utilization ratio of luminophores. Compared with 3D bulk MOFs, ultrathin 2D MOL could provide more accessible postmodification sites for grafting the Ru-l-Lys complexes; the self-enhanced Ru-l-Lys complexes on MOL were easily excited by electrons due to the shortened ion/electron-transport distance and the removal of diffusion barriers. Furthermore, the electron transfer path between the Ru(ii) luminophore and coreactant (l-Lys) was shortened and the energy loss of the luminophores decreased, which significantly improved the ECL efficiency. As expected, our work manifested that the Zr-MOL's loading amount of Ru-l-Lys was about 1.23-fold higher than that of a 3D bulk Zr-MOF, and the ECL intensity and efficiency of Ru-l-Lys-Zr-MOL were around 93.45-fold and 1.64-fold higher than those of control Ru-l-Lys-Zr-MOF, respectively. Considering all of these merits, in this work, we utilized the prepared Ru-l-Lys-Zr-MOL as a highly efficient ECL indicator for the first time to fabricate a highly sensitive self-enhanced aptasensor for mucin 1 (MUC1) determination. The proposed aptasensor showed high sensitivity with a linear range from 1 fg mL-1 to 100 pg mL-1 with a detection limit of 0.72 fg mL-1; it also exhibited excellent specificity and stability. It is noteworthy that this work not only provides a new strategy to design and synthesize high-performance ECL materials, but also opens a new way to develop ultrasensitive ECL sensors for bioanalysis.
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Affiliation(s)
- Yang Yang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Gui-Bing Hu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Wen-Bin Liang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Li-Ying Yao
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Wei Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Ruo Yuan
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
| | - Dong-Rong Xiao
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
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Koga Y, Hachisu Y, Tsurumaki H, Yatomi M, Kaira K, Ohta S, Ono J, Izuhara K, Dobashi K, Hisada T. Pirfenidone Improves Familial Idiopathic Pulmonary Fibrosis without Affecting Serum Periostin Levels. ACTA ACUST UNITED AC 2019; 55:medicina55050161. [PMID: 31108995 PMCID: PMC6572615 DOI: 10.3390/medicina55050161] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 05/16/2019] [Accepted: 05/16/2019] [Indexed: 11/16/2022]
Abstract
Background: Antifibrotic agents have been approved for the treatment of idiopathic pulmonary fibrosis (IPF). However, the efficacy of these drugs in the treatment of familial IPF (FIPF) has not been previously reported. Case presentation: We report the case of a 77-year-old man with FIPF, successfully treated with pirfenidone. His uncle died due to IPF, and his niece was diagnosed with the disease. He had worsening dyspnea two months prior to admission to our hospital. Upon admission, he had desaturation when exercising and broad interstitial pneumonia. Administration of pirfenidone improved his dyspnea, desaturation, and the reticular shadow on his chest radiograph. Increased fibrotic marker levels KL-6 and SP-D were also normalized in six months; treatment had no effect on his serum periostin level. Pirfenidone has been effective for over two years. Conclusion: Antifibrotic agents such as pirfenidone may be useful for the management of FIPF, as well as cases of sporadic IPF.
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Affiliation(s)
- Yasuhiko Koga
- Department of Allergy and Respiratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi Maebashi, Gunma 371-8511, Japan.
| | - Yoshimasa Hachisu
- Department of Allergy and Respiratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi Maebashi, Gunma 371-8511, Japan.
| | - Hiroaki Tsurumaki
- Department of Allergy and Respiratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi Maebashi, Gunma 371-8511, Japan.
| | - Masakiyo Yatomi
- Department of Allergy and Respiratory Medicine, Gunma University Graduate School of Medicine, 3-39-15 sho-wa machi Maebashi, Gunma 371-8511, Japan.
| | - Kyoichi Kaira
- Department of Respiratory Medicine, Comprehensive Cancer Center, International Medical Center, Saitama Medical University, Saitama 350-0495, Japan.
| | - Shoichiro Ohta
- Division of Medical Biochemistry, Department of Biomolecular Sciences, Saga Medical School, 5-1-1, Nabeshima, Saga, 849-8501, Japan.
| | - Junya Ono
- Shino-Test Corporation, 2-29-14 Oonodai Minami-ku, Sagamihara, Kanagawa, 252-0331, Japan.
| | - Kenji Izuhara
- Division of Medical Biochemistry, Department of Biomolecular Sciences, Saga Medical School, 5-1-1, Nabeshima, Saga, 849-8501, Japan.
| | - Kunio Dobashi
- Jobu Hospital for Respiratory Diseases, 586-1 Taguchi-machi, Maebashi, Gunma, 371-0048, Japan.
| | - Takeshi Hisada
- Gunma University Graduate School of Health Sciences, 3-39-22 sho-wa machi Maebashi, Gunma 371-8514, Japan.
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12
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Miura K, Sakamoto T. [Metaplastic Thymoma;Report of a Case]. Kyobu Geka 2018; 71:1136-1139. [PMID: 30587759] [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: 06/09/2023]
Abstract
A 76-year-old man was referred to our division because of an abnormal shadow on chest computed tomography (CT). CT revealed a 20 mm nodule in the anterior mediastinum. Non-ivasive thymoma was suspected and thymomectomy and resection of right thymus was performed. The resected tumor was 25×25×13 mm in size. Pathologically the tumor was composed with polygonal cell components and spindle cell components, partially invading surrounding tissue. Cytokeratin AE1/3 and epithelial membrane antigen (EMA) were strongly positive, and the pathological diagnosis was biphasic, metaplastic thymoma.
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Affiliation(s)
- Kenji Miura
- Department of Thoracic Surgery, Japanese Red Cross Kobe Hospital, Kobe, Japan
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Díaz Del Arco C, Garré P, Molina Roldán E, Lorca V, Cerón Nieto MÁ, Fernández Aceñero MJ. MUC1 expression in colorectal carcinoma: Clinicopathological correlation and prognostic significance. Rev Esp Patol 2018; 51:204-209. [PMID: 30269770 DOI: 10.1016/j.patol.2018.03.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 02/26/2018] [Accepted: 03/04/2018] [Indexed: 06/08/2023]
Abstract
INTRODUCTION MUC1 overexpression has been linked to cancer development and has been associated with a higher stage at diagnosis and presence of lymph node or distant metastases. However, its prognostic significance is still unclear. We aimed to evaluate the relationship between MUC1 expression and prognosis of colorectal carcinoma. MATERIALS AND METHODS Immunohistochemical expression of MUC1 in 96 colorectal carcinomas with analysis of potential prognostic influence. RESULTS 55.2% of patients were women and the mean age was 65.9 years. Tumors were more frequently located in rectum or sigmoid colon (60.4% and 21.9%). Most tumors were T3 (60.3%). 36.9% of patients showed lymph node metastases and 30.2% showed distant metastasis at the time of diagnosis. MUC1 was intensely positive in 46% and negative in 37.9% of tumors. Overall, 61% of patients recurred and 40.4% died during follow-up. 58.5% of tumors of surviving patients were intensely positive for MUC1 and 29.5% were negative, as compared with 28.5% (intense positivity) and 51.4% (negativity) in the group of patients who died (p=0.022). 65% of tumors of patients without recurrences showed intense positivity for MUC1 and 23% of them were negative as compared with 33.9% (intense positivity) and 47% (negativity) in the group of patients who recurred (p=0.019). CONCLUSIONS Loss of MUC1 expression was more frequent in cases with disease recurrence or death, as compared with patients with stable disease, in whom intense positivity was more frequently seen. These findings disagree with the majority of previous studies, indicating the need for further investigation.
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Affiliation(s)
| | - Pilar Garré
- Department of Oncology, Hospital Clínico San Carlos, Madrid, Spain
| | - Elena Molina Roldán
- Department of Surgical Pathology, Hospital Clínico San Carlos, Madrid, Spain
| | - Víctor Lorca
- Department of Oncology, Hospital Clínico San Carlos, Madrid, Spain
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Kasprzak A, Siodła E, Andrzejewska M, Szmeja J, Seraszek-Jaros A, Cofta S, Szaflarski W. Differential expression of mucin 1 and mucin 2 in colorectal cancer. World J Gastroenterol 2018; 24:4164-4177. [PMID: 30271081 PMCID: PMC6158483 DOI: 10.3748/wjg.v24.i36.4164] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 08/15/2018] [Accepted: 08/24/2018] [Indexed: 02/06/2023] Open
Abstract
AIM To determine tissue expression (mRNA, protein) of two types of mucins [mucin 1 (MUC1) and mucin 2 (MUC2)] in patients with colorectal cancer (CRC). METHODS Expression of membrane-bound mucin (MUC1) and secretory mucin (MUC2) in CRC (mRNA, protein) were analyzed in tissue material including fragments of tumors obtained from CRC patients (n = 34), and fragments of normal colorectal tissue from the same patients (control). The analysis was conducted using real-time quantitative polymerase chain reaction (RT-qPCR) (transcripts), immunohistochemistry (IHC) (apomucins), and the modern approach for morphometric analysis of IHC reaction (HSV filter software). Results on tissue expression of both mucins (mRNA, protein) were compared to histological alterations in colorectal cancer samples and correlated with selected clinical data in the patients. The statistical analysis was conducted using Statistica PL v. 12.0 software. RESULTS Significantly higher expression of the MUC1 mRNA in the CRC, compared with the control and the borderline correlation of mRNA expression with MUC1 protein levels in colorectal samples was observed. The expression of apomucins concerned cell membranes (MUC1) and cytoplasm (MUC2) and occurred both in control tissues and in most cancerous samples. There were no significant relationships between MUC1 (mRNA, protein) and the clinicopathological data of patients. MUC2 protein expression was significantly lower as compared to the control, while MUC2 mRNA expression was comparable in both groups. The MUC1/MUC2 ratio was significantly higher in CRC tissues than in the control. The higher expression of MUC2 was a feature of mucinous CRC subtypes, and characterized higher histological stage of tumors. Negative correlations have been obtained between MUC2 and the Ki-67 antigen, as well as between MUC2 and p53 protein expressions in CRC. CONCLUSION A combination of tissue overexpression of MUC1, reduced MUC2 expression, and high ratio of MUC1/MUC2 is a factor of poor prognosis in CRC patients. MUC2 tissue expression allows to differentiate mucinous and nonmucinous CRC subtypes.
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Affiliation(s)
- Aldona Kasprzak
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan 60-781, Poland
| | - Elżbieta Siodła
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan 60-781, Poland
| | - Małgorzata Andrzejewska
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan 60-781, Poland
| | - Jacek Szmeja
- Chair and Department of General Surgery, Endocrinological and Gastroenterological Oncology, Poznan University of Medical Sciences, Poznan 60-355, Poland
| | - Agnieszka Seraszek-Jaros
- Department of Bioinformatics and Computational Biology, Chair of Clinical Pathomorphology, Poznan University of Medical Sciences, Poznan 60-529, Poland
| | - Szczepan Cofta
- Department of Pulmonology, Allergology and Respiratory Oncology, Poznan University of Medical Science, Poznan 60-569, Poland
| | - Witold Szaflarski
- Department of Histology and Embryology, Poznan University of Medical Sciences, Poznan 60-781, Poland
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Baeesa SS, Hussein D, Altalhy A, Bakhaidar MG, Alghamdi FA, Bangash M, Abuzenadah A. Malignant Transformation and Spine Metastasis of an Intracranial Grade I Meningioma: In Situ Immunofluorescence Analysis of Cancer Stem Cells Case Report and Literature Review. World Neurosurg 2018; 120:274-289. [PMID: 30205223 DOI: 10.1016/j.wneu.2018.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/31/2018] [Accepted: 09/02/2018] [Indexed: 12/20/2022]
Abstract
BACKGROUND Malignant meningiomas are rare neoplasms of the central nervous system that occur de novo or rarely as a result of transformation. They have a higher rate of recurrence and metastasis accompanied by a significantly shorter survivorship compared with benign variants. Meningioma cancer stem cells (CSCs) have been previously shown to be associated with resistance and aggressiveness. However, the role they play in meningioma progression is still being investigated. CASE DESCRIPTION We report a 29-year-old man who underwent a resection of a grade I meningioma in 2011. The patient had multiple local recurrences of the tumor that showed an aggressive change in behavior and transformation to grade III meningioma, and developed extracranial metastasis to the cervical spine. He underwent multiple operations and received radiotherapy. Analysis of the tissues indicated the presence of CSC markers before metastasis, and showed increased expressions of associated markers in the metastasized tissue. In addition, similar to the patient's profile, the pharmacological testing of a primary cell line retrieved from the metastasized tissues showed a high level of drug tolerance and a diminished ability to initiate apoptosis. CONCLUSIONS Malignant progression of grade I meningioma can occur, and its eventuality may be anticipated by detecting CSCs. We performed a comprehensive literature review of relevant cases and discussed the clinical, diagnostic, and management characteristics of the reported cases.
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Affiliation(s)
- Saleh S Baeesa
- Division of Neurosurgery, Department of Surgery, King Abdulaziz University Hospital, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Deema Hussein
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ali Altalhy
- Division of Neurosurgery, Department of Surgery, King Abdulaziz University Hospital, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohamad G Bakhaidar
- Division of Neurosurgery, Department of Surgery, King Abdulaziz University Hospital, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Fahad A Alghamdi
- Department of Pathology, King Abdulaziz University Hospital, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammed Bangash
- Division of Neurosurgery, Department of Surgery, King Abdulaziz University Hospital, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Adel Abuzenadah
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia; Center for Innovation for Personalized Medicine, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
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16
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Chiba H, Otsuka M, Takahashi H. Significance of molecular biomarkers in idiopathic pulmonary fibrosis: A mini review. Respir Investig 2018; 56:384-391. [PMID: 30030108 DOI: 10.1016/j.resinv.2018.06.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 05/07/2018] [Accepted: 06/12/2018] [Indexed: 06/08/2023]
Abstract
Idiopathic pulmonary fibrosis (IPF) is a chronic, irreversible condition with poor prognosis that is characterized by a variable clinical course in each patient, which renders it a complex disease with unknown causes. Despite the proven efficacy of novel antifibrotic therapies, including pirfenidone and nintedanib, the diagnosis and follow-up of IPF remain challenging. Hence, the identification of molecular biomarkers for early detection of IPF and to predict biologically determined individual clinical courses, has recently piqued the interest of researchers. Previous studies have demonstrated the diagnostic and prognostic efficacy of blood proteins such as KL-6, Surfactant protein (SP)-A, and SP-D, in patients with IPF. Due to their use in clinical practice in Japan, for approximately twenty years, a significant amount of data about these biomarkers has been accumulated. This paper reviews the recent literature on molecular biomarkers for IPF that have been developed in Japan as well as other potential molecular biomarkers.
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Affiliation(s)
- Hirofumi Chiba
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan.
| | - Mitsuo Otsuka
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan.
| | - Hiroki Takahashi
- Department of Respiratory Medicine and Allergology, Sapporo Medical University School of Medicine, Sapporo, Japan.
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17
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de Las Rivas M, Coelho H, Diniz A, Lira-Navarrete E, Compañón I, Jiménez-Barbero J, Schjoldager KT, Bennett EP, Vakhrushev SY, Clausen H, Corzana F, Marcelo F, Hurtado-Guerrero R. Structural Analysis of a GalNAc-T2 Mutant Reveals an Induced-Fit Catalytic Mechanism for GalNAc-Ts. Chemistry 2018; 24:8382-8392. [PMID: 29601100 DOI: 10.1002/chem.201800701] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Indexed: 02/02/2023]
Abstract
The family of polypeptide N-acetylgalactosamine (GalNAc) transferases (GalNAc-Ts) orchestrates the initiating step of mucin-type protein O-glycosylation by transfer of GalNAc moieties to serine and threonine residues in proteins. Deficiencies and dysregulation of GalNAc-T isoenzymes are related to different diseases. Recently, it has been demonstrated that an inactive GalNAc-T2 mutant (F104S), which is not located at the active site, induces low levels of high-density lipoprotein cholesterol (HDL-C) in humans. Herein, the molecular basis for F104S mutant inactivation has been deciphered. Saturation transfer difference NMR spectroscopy experiments demonstrate that the mutation induces loss of binding to peptide substrates. Analysis of the crystal structure of the F104S mutant bound to UDP-GalNAc (UDP=uridine diphosphate), combined with molecular dynamics (MD) simulations, has revealed that the flexible loop is disordered and displays larger conformational changes in the mutant enzyme than that in the wild-type (WT) enzyme. 19 F NMR spectroscopy experiments reveal that the WT enzyme only reaches the active state in the presence of UDP-GalNAc, which provides compelling evidence that GalNAc-T2 adopts a UDP-GalNAc-dependent induced-fit mechanism. The F104S mutation precludes the enzyme from achieving the active conformation and concomitantly binding peptide substrates. This study provides new insights into the catalytic mechanism of the large family of GalNAc-Ts and how these enzymes orchestrate protein O-glycosylation.
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Affiliation(s)
- Matilde de Las Rivas
- Instituto de Biocomputación y Fisica de Sistemas Complejos (BIFI), BIFI-IQFR (CSIC) Joint Unit, Universidad de Zaragoza, 50018, Zaragoza, Spain
| | - Helena Coelho
- UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
- CIC bioGUNE, Bizkaia Technology Park, Building 801A, 48170, Derio, Spain
- Department of Organic Chemistry II, Faculty of Science & Technology, University of the Basque Country, 48940, Leioa, Bizkaia, Spain
| | - Ana Diniz
- UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
| | - Erandi Lira-Navarrete
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
| | - Ismael Compañón
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006, Logroño, Spain
| | - Jesús Jiménez-Barbero
- CIC bioGUNE, Bizkaia Technology Park, Building 801A, 48170, Derio, Spain
- Department of Organic Chemistry II, Faculty of Science & Technology, University of the Basque Country, 48940, Leioa, Bizkaia, Spain
- Ikerbasque, Basque Foundation for Science, Maria Diaz de Haro 13, 48009, Bilbao, Spain
| | - Katrine T Schjoldager
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
| | - Eric P Bennett
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
| | - Sergey Y Vakhrushev
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
| | - Henrik Clausen
- Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
| | - Francisco Corzana
- Departamento de Química, Universidad de La Rioja, Centro de Investigación en Síntesis Química, E-26006, Logroño, Spain
| | - Filipa Marcelo
- UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
| | - Ramon Hurtado-Guerrero
- Instituto de Biocomputación y Fisica de Sistemas Complejos (BIFI), BIFI-IQFR (CSIC) Joint Unit, Universidad de Zaragoza, 50018, Zaragoza, Spain
- Fundación ARAID, 50018, Zaragoza, Spain
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18
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Gilbert AR, Chévez-Barrios P, Cykowski MD. Perineurial-like Cells and EMA Expression in the Suprachoroidal Region of the Human Eye. J Histochem Cytochem 2018; 66:367-375. [PMID: 29446690 PMCID: PMC5958356 DOI: 10.1369/0022155418756308] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 01/02/2018] [Indexed: 11/22/2022] Open
Abstract
The suprachoroidal region of the eye comprises vascular channels, melanocytes, and thin fibroblasts with elongated cytoplasm that are positioned directly adjacent to the densely collagenous sclera. Morphological similarities between these suprachoroidal fibroblasts and arachnoid cells and perineurial cells have been recognized, but whether these fibroblasts have a perineurial cell-like immunophenotype is not known. To further examine the relationship of these three cell types, we investigated the comparative expression of epithelial membrane antigen (EMA), the tight junction protein claudin-1, glucose transporter-1 (Glut-1), and CD34 in suprachoroidal fibroblasts, arachnoid of the optic nerve sheath, and perineurium of ciliary nerves in eight human eye specimens. Granular, diffuse, and cytoplasmic EMA expression was seen in suprachoroidal fibroblasts, but this was not contiguous with the similar pattern of EMA expression in adjacent perineurium and arachnoid. CD34 expression in suprachoroidal fibroblasts was also seen, similar to arachnoid and perineurium. Claudin-1 and Glut-1 were not consistently expressed in suprachoroidal fibroblasts, distinguishing them from perineurial cells in particular and suggesting that these fibroblasts do not arise directly from adjacent arachnoid or perineurium. Nonetheless, the overlapping morphology and protein expression suggest phenotypic similarities in these cells that protect and support adjacent retina, optic nerve, and peripheral nerve.
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Affiliation(s)
- Andrea R. Gilbert
- Department of Pathology, UT Health San Antonio,
San Antonio, Texas
- Department of Pathology and Genomic Medicine,
Houston Methodist Hospital, Houston, Texas
| | - Patricia Chévez-Barrios
- Department of Pathology and Genomic Medicine,
Houston Methodist Hospital, Houston, Texas
- Department of Ophthalmology, Blanton Eye
Institute, Houston Methodist Hospital, Houston, Texas
- Departments of Pathology and Laboratory
Medicine, Weill Cornell Medicine, New York City, New York
- Ophthalmology, Weill Cornell Medicine, New York
City, New York
| | - Matthew D. Cykowski
- Department of Pathology and Genomic Medicine,
Houston Methodist Hospital, Houston, Texas
- Departments of Pathology and Laboratory
Medicine, Weill Cornell Medicine, New York City, New York
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19
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Abstract
Immunohistochemical markers of thyroid tumors can be divided into two major categories: those related to the cell types and those related to the type of pathology. The most important markers in the first category are thyroglobulin and TTF-1 for follicular cells, and calcitonin, CEA, and chromogranin for C cells. Markers in the second category are primarily directed at papillary carcinoma and include cytokeratin 19, high-molecular weight keratin (identifiable with antibody 34βE12), S-100 protein, HBME-1, galectin 3, and p27kip1. At the practical level, cell type-related markers are much more useful than disease-related markers. Markers said to be of prognostic value in medullary carcinomas are calcitonin, bcl-2, and N-myc.
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Affiliation(s)
- Juan Rosai
- Department of Pathology, National Cancer Institute, Milan, Italy.
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20
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Tyshler LB, Longton GM, Ellis GK, Livingston RB. False Positive Tumor Markers: Elevation in Patients with Breast Cancer on FAC-type Chemotherapy and Correlation with the Development of Hand-foot Syndrome. Int J Biol Markers 2018; 11:203-6. [PMID: 9017443 DOI: 10.1177/172460089601100404] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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: 11/16/2022]
Abstract
Breast cancer patients on dose-intensive chemotherapy often have elevated tumor markers during the course of treatment. Our objective was to estimate the incidence of a “false positive” tumor marker screen and to determine whether hand-foot epithelial damage was correlated. Data from 53 patients with high risk primary breast cancer who had undergone adjuvant or neoadjuvant 5FU-containing chemotherapy (FAC or FAC plus G-CSF) for 3 to 12 months were reviewed. The relationship between tumor marker elevation and disease recur- rence, regimen intensity, and the occurrence of hand-foot syndrome was examined. Thirty-three of the 53 patients had elevated tumor markers in the absence of recurrent disease. The false positive rate was higher in patients who underwent FAC plus G-CSF chemotherapy than in patients who underwent FAC chemotherapy (92% vs 55%, p = .01). A false positive marker screen was associated with the occurrence of hand-foot syndrome even when the effect of regimen was accounted for by stratification (p=.01). Tumor marker screening of breast cancer patients on this type of adjuvant chemotherapy has poor specificity for recurrent malignancy. These data suggest tumor marker elevation may be an indicator of epithelial toxicity during chemotherapy, manifested clinically as hand-foot syndrome.
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Affiliation(s)
- L B Tyshler
- University of Washington Cancer Center, Seattle, USA
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21
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Torres M, Pacheco C, Valverde A, Rebollo AC, Moral A, Vallejo JA, Mateo A. CA 549 and SP2 in postoperative breast cancer patients. Comparison with CA 15.3, CEA and TPA. Int J Biol Markers 2018; 10:94-9. [PMID: 7561245 DOI: 10.1177/172460089501000205] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 11/16/2022]
Abstract
The levels of CA 549 and SP2 were measured in 430 subjects: 100 healthy blood donors, 130 patients with benign diseases and 200 postoperative breast cancer patients. In the latter group, the serum levels of CA 15.3, CEA and TPA were also measured. The Kolmogorov-Smirnov, Mann Whitney and McNemar tests were used for statistical analysis. The upper normal limits were established on the basis of the values obtained in the healthy blood donors group, the benign diseases group and R.O.C. analysis of the breast cancer group. They were: CA 549 = 13 U/ml, SP2 = 14 U/ml, CA 15.3 = 35 U/ml, CEA = 5 ng/ml and TPA = 110 U/ml. The sensitivity, specificity and accuracy in the breast cancer group were, respectively: CA 549 = 78.1%, 97.1% and 88%; SP2 = 21.9%, 90.4% and 57.5%; CEA = 66.7%, 95.2% and 81.5%; CA 15.3 = 80.2%, 98.1% and 89.5%, and TPA = 73.9%, 78.8% and 76.5%. Statistical analysis showed significant differences only between CA 15.3, the marker which gave the best results, and SP2 (p<0.001). There were no significant differences with the association of two or three tumor markers.
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Affiliation(s)
- M Torres
- Nuclear Medicine Service, Hospital Reina Sofía, Córdoba, Spain
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22
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Abstract
We have evaluated the performance of the Bayer Immuno 1™ serum HER-2/neu assay. The precision is excellent and varied between 1.7% and 2.1% at values of HER-2/neu ranging from 16.8 ng/mL to 108.6 ng/mL. In normal women who were followed on a monthly basis the average deviation was 6%. The concentration (mean ± SD) in normal women was 8.7 ± 3.2 ng/mL. There was no difference between pre and postmenopausal women. The normal/abnormal cutoff was defined as greater than 15 ng/mL. In normal women and those with benign disease the specificity varied between 95% and 100%. In women with breast cancer the sensitivity was 1.7% in stage I disease, 3.0% in stage II, 16.7 in stage III and 35.5% in stage IV. There were 56 elevations (14.7%) in the total group of 285 women with breast cancer. There was an excellent correlation with a microtitre plate method (r=0.9944). Longitudinal studies showed clearly that women who expressed HER-2/neu in their tissue had elevated serum levels and these levels reflected the clinical course of the patient. More extensive control studies are required to establish the role of HER-2/neu assays in the management of women with breast cancer.
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Affiliation(s)
- M K Schwartz
- Department of Clinical Laboratories, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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23
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Nagai Y, Kishimori C, Nakagawa M, Yasuda I, Honjo G, Ohno H. Cytogenetic evidence for the clonal hematopoietic cell origin of alveolar macrophages in myelodysplastic syndrome-associated pulmonary alveolar proteinosis. Ann Hematol 2017; 96:2141-2143. [PMID: 28849334 DOI: 10.1007/s00277-017-3118-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 08/17/2017] [Indexed: 10/19/2022]
Affiliation(s)
- Yuya Nagai
- Department of Hematology, Tenri Hospital, 200 Mishima, Tenri, Nara, 632-8552, Japan
| | | | | | - Ikkoh Yasuda
- Department of Respiratory Medicine, Tenri Hospital, Tenri, Japan
| | - Gen Honjo
- Department of Diagnostic Pathology, Tenri Hospital, Tenri, Japan
| | - Hitoshi Ohno
- Department of Hematology, Tenri Hospital, 200 Mishima, Tenri, Nara, 632-8552, Japan.
- Tenri Institute of Medical Research, Tenri, Japan.
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Matsuda A, Higashi M, Nakagawa T, Yokoyama S, Kuno A, Yonezawa S, Narimatsu H. Assessment of tumor characteristics based on glycoform analysis of membrane-tethered MUC1. J Transl Med 2017; 97:1103-1113. [PMID: 28581490 DOI: 10.1038/labinvest.2017.53] [Citation(s) in RCA: 14] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 03/29/2017] [Accepted: 04/01/2017] [Indexed: 12/12/2022] Open
Abstract
Clinical tissue specimens are useful for pathological diagnosis, which is, in some cases, supported by visualization of biomolecule localization. In general, diagnostic specificity in molecular pathology is increased by the acquisition of a probe to distinguish the modification of isomers. Although glycosylation is one of the candidate modifications in a protein, comparative glycan analysis of disease-associated proteins derived from a single tissue section is still challenging because of the lack of analytical sensitivity. Here we demonstrate a possible method for differential glycoform analysis of an endogenous tumor-associated glycoprotein MUC1 by an antibody-overlay lectin microarray. Tissue sections (5 μm thick) of patients with cholangiocarcinoma (CCA; n=21) and pancreatic ductal adenocarcinoma (PDAC; n=50) were stained with an anti-MUC1 antibody MY.1E12 that was established as a monoclonal antibody recognizing an MUC1 glycosylation isoform with a sialyl-core 1 structure (NeuAcα2-3galactosyl β1-3-N-acetylgalactosamine). MY.1E12-positive tissue areas (2.5 mm2) were selectively dissected with a laser capture microdissection procedure. The membrane MUC1 was enriched by immunoprecipitation with MY.1E12 and subjected to lectin microarray analysis. Even though the reactivities of MY.1E12 between CCA and PDAC were similar, the lectin-binding patterns varied. We found Maackia amurensis leukoagglutinin and pokeweed lectin distinguished MY.1E12-reactive MUC1 of CCA from that of PDAC. Moreover, MUC1 with M. amurensis hemagglutinin (MAH) reactivity potentially reflected the degree of malignancy. These results were confirmed with MAH-MY.1E12 double fluorescent immunostaining. These glycan changes on MUC1 were detected with high sensitivity owing to the cluster effect of immobilized lectins on a tandem repeat peptide antigen covered with highly dense glycosylation such as mucin. Our approach provides the information to investigate novel glycodynamics in biology, for example, glycoalteration, as well as diseases related to not only MUC1 but also other membrane proteins.
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Affiliation(s)
- Atsushi Matsuda
- Glycomedicine Technology Research Center (GTRC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Michiyo Higashi
- Department of Pathology, Field of Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
| | - Tomomi Nakagawa
- Glycomedicine Technology Research Center (GTRC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Seiya Yokoyama
- Department of Pathology, Field of Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
| | - Atsushi Kuno
- Glycomedicine Technology Research Center (GTRC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
| | - Suguru Yonezawa
- Department of Pathology, Field of Oncology, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
| | - Hisashi Narimatsu
- Glycomedicine Technology Research Center (GTRC), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki, Japan
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25
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Martínez-Mata G, Inda-Cunningham D, Medina-López JA, Pacheco-Santiesteban R, Monreal-Romero H. Congenital lingual cyst: Expression of MUC protein and report of a new case. J Stomatol Oral Maxillofac Surg 2017; 118:376-378. [PMID: 28710001 DOI: 10.1016/j.jormas.2017.07.001] [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] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 06/27/2017] [Accepted: 07/05/2017] [Indexed: 11/30/2022]
Abstract
Lingual congenital cysts are uncommon lesions that alter the functions of speech, swallowing and breathing when they have considerable dimension. They usually appear from birth and increase in size gradually in childhood and adolescence. While there are a considerable number of case reports, the nomenclature and origin of this lesion are controversial. Congenital lingual cysts are composed of an epithelial lining that can show heterogeneous histological features, such as globed, ciliated, squamous and parietal cells, while the wall presents mature connective tissue and eventually smooth muscle. In the present manuscript, we report a case of a congenital lingual cyst in a 13-year-old boy, as well as the immunoexpression of MUC family proteins (MUC-1 and MUC-5AC), hoping to provide data that will help to clarify the possible etiology of this lesion.
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Affiliation(s)
- G Martínez-Mata
- Faculty of Medicine, University of Chihuahua, Chihuahua, Mexico.
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26
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Shirai T, Kiniwa Y, Asaka S, Shimojo Y, Kamijo F, Okuyama R. Expression of Mucin 1 in Mycosis Fungoides Tumour Cells: A Case Report. Acta Derm Venereol 2017; 97:747-748. [PMID: 28218332 DOI: 10.2340/00015555-2638] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Takushi Shirai
- Department of Dermatology, Shinshu University School of Medicine,, 3908621 Matsumoto, Japan
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27
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Mouffouk F, Aouabdi S, Al-Hetlani E, Serrai H, Alrefae T, Leo Chen L. New generation of electrochemical immunoassay based on polymeric nanoparticles for early detection of breast cancer. Int J Nanomedicine 2017; 12:3037-3047. [PMID: 28450780 PMCID: PMC5399978 DOI: 10.2147/ijn.s127086] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Screening and early diagnosis are the key factors for the reduction of mortality rate and treatment cost of cancer. Therefore, sensitive and selective methods that can reveal the low abundance of cancer biomarkers in a biological sample are always desired. Here, we report the development of a novel electrochemical biosensor for early detection of breast cancer by using bioconjugated self-assembled pH-responsive polymeric micelles. The micelles were loaded with ferrocene molecules as "tracers" to specifically target cell surface-associated epithelial mucin (MUC1), a biomarker for breast and other solid carcinoma. The synthesis of target-specific, ferrocene-loaded polymeric micelles was confirmed, and the resulting sensor was capable of detecting the presence of MUC1 in a sample containing about 10 cells/mL. Such a high sensitivity was achieved by maximizing the loading capacity of ferrocene inside the polymeric micelles. Every single event of binding between the antibody and antigen was represented by the signal of hundreds of thousands of ferrocene molecules that were released from the polymeric micelles. This resulted in a significant increase in the intensity of the ferrocene signal detected by cyclic voltammetry.
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Affiliation(s)
- Fouzi Mouffouk
- Department of Chemistry, Kuwait University, Safat, Kuwait
| | - Sihem Aouabdi
- King Abdullah International Medical Research Center (KAIMRC), Jeddah, Kingdom of Saudi Arabia
| | | | - Hacene Serrai
- Department of Radiology and Nuclear Medicine, University Hospital of Gent (UZG), Gent, Belgium
| | - Tareq Alrefae
- Department of Physics, Kuwait University, Safat, Kuwait
| | - Liaohai Leo Chen
- Surgical Precision Research Lab. Department of Surgery, University of Illinois at Chicago, IL, USA
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28
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Elakkiya V, Menon MP, Nataraj D, Biji P, Selvakumar R. Optical detection of CA 15.3 breast cancer antigen using CdS quantum dot. IET Nanobiotechnol 2017; 11:268-276. [PMID: 28476984 PMCID: PMC8676341 DOI: 10.1049/iet-nbt.2016.0012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 04/19/2016] [Accepted: 06/24/2016] [Indexed: 12/29/2023] Open
Abstract
The present study focus on optical sensing of breast cancer antigen 15.3 (CA 15.3) using cadmium sulphide quantum dot (CdS-QD) in saline and serum samples spiked with antigen. The surface of CdS-QD was modified by cysteamine capping followed by tagging of CA 15.3 antibody. The samples were characterised using UV-visible absorption spectroscopy (UV-VIS Spectroscopy), Fourier transform infrared spectroscopy (FTIR), high-resolution transmission electron microscopy (HRTEM) attached with energy-dispersive X-ray spectroscopy, phase contrast inverted epi-fluorescence microscopy and photoluminescence (PL) spectrophotometry (EDS). The CdS-QD showed a mean diameter of 3.02 ± 0.6 nm. The complex formed after antigen-antibody interaction resulted in distinguishable optical and fluorescence intensity with respect to varying concentration of antigen. The PL study revealed that CA 15.3 antibody labelled CdS QD can detect CA 15.3 tumour marker even at very low concentration of 0.002 KU/L with a constant response time of 15 min. This study clearly indicates that detection of CA 15.3 at low concentration is possible using surface modified CdS QD in serum samples and can find immense applications in biosensor development for detection of breast cancer marker similar to various automated detection kits available in market.
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Affiliation(s)
- Venugopal Elakkiya
- Nanobiotechnology Laboratory, PSG Institute of Advanced Studies, Peelamedu, Coimbatore 641004, India
| | - Mridula Prakash Menon
- Nanobiotechnology Laboratory, PSG Institute of Advanced Studies, Peelamedu, Coimbatore 641004, India
| | - Devaraj Nataraj
- Department of Physics, Bharathiar University, Coimbatore 641046, India
| | - Pullithadathil Biji
- Nanosensor Laboratory, PSG Institute of Advanced Studies, Peelamedu, Coimbatore 641004, India
| | - Rajendran Selvakumar
- Nanobiotechnology Laboratory, PSG Institute of Advanced Studies, Peelamedu, Coimbatore 641004, India.
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Qu A, Wu X, Xu L, Liu L, Ma W, Kuang H, Xu C. SERS- and luminescence-active Au-Au-UCNP trimers for attomolar detection of two cancer biomarkers. Nanoscale 2017; 9:3865-3872. [PMID: 28252127 DOI: 10.1039/c6nr09114h] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Alpha-fetoprotein (AFP) and mucoprotein1 (mucin-1) are two important disease biomarkers. Self-assembled gold nanoparticles (AuNPs) and upconversion nanoparticle (Au-Au-UCNP) trimers based on aptamers were developed for the ultrasensitive detection of AFP and mucin-1. The Au-Au-UCNP trimers produced ideal optical signals, with prominent Raman enhancement and fluorescence quenching effects. The surface-enhanced Raman scattering (SERS) intensity decreased in the presence of mucin-1 and the luminescence intensity increased in the presence of AFP. A limit of detection (LOD) of 4.1 aM and a wide linear range of 0.01-10 fM for the detection of mucin-1 were obtained with this SERS-encoded sensing system. Using the luminescence-encoded sensing system, a LOD of 0.059 aM and a wide linear range of 1-100 aM for the detection of AFP were obtained. These LODs are the lowest values reported so far. This approach has the advantage of detecting two disease biomarkers simultaneously.
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Affiliation(s)
- Aihua Qu
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China. and International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Xiaoling Wu
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China. and International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Liguang Xu
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China. and International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Liqiang Liu
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China. and International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Wei Ma
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China. and International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Hua Kuang
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China. and International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Chuanlai Xu
- State Key Lab of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China. and International Joint Research Laboratory for Biointerface and Biodetection, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
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30
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Porcel JM, Civit C, Esquerda A, Salud A, Bielsa S. Utility of CEA and CA 15-3 measurements in non-purulent pleural exudates in the diagnosis of malignancy: A single-center experience. Arch Bronconeumol 2017; 53:427-431. [PMID: 28237067 DOI: 10.1016/j.arbres.2016.12.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Revised: 12/18/2016] [Accepted: 12/20/2016] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To establish the diagnostic accuracy of pleural fluid (PF) CEA and CA 15-3 in identifying malignancy, and to determine the additional value of these markers in patients with malignant pleural effusions (MPEs) with false negative results from cytological fluid examination. METHODS PF concentrations of CEA and/or CA 15-3 were determined in 1,575 patients with non-purulent exudates, 549 of whom had confirmed MPEs, 284 probable MPEs, and 742 benign effusions. Tumor marker cut-off points were set to ensure 100% specificity for malignant effusion. RESULTS The 41, 40 and 60% of MPE patients had high PF levels of CEA (>45ng/mL), CA 15-3 (>77 UI/l) or both, respectively. These percentages were 30, 19 and 41% in MPEs with positive pleural biopsy and negative PF cytology; and 24, 13 and 35% in clinical MPEs without histocytological confirmation. Tumor markers were of no value in lymphomas and mesotheliomas. The area-under-the-curve for CEA was 0.819 (95% CI: 0,793-0,845) and for CA 15-3, it was 0.822 (95% CI: 0,796-0,847). The use of tumor markers compared to cytology alone, increased the diagnosis of malignancy by 14%. CONCLUSIONS Measurements of PF CEA and CA 15-3 may complement pleural cytology in the identification of MPEs.
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Affiliation(s)
- José M Porcel
- Unidad de Medicina Pleural, Hospital Universitario Arnau de Vilanova, Instituto de Investigación Biomédica de Lleida Fundación Dr. Pifarré, IRBLLEIDA, Lérida, España.
| | - Carme Civit
- Unidad de Medicina Pleural, Hospital Universitario Arnau de Vilanova, Instituto de Investigación Biomédica de Lleida Fundación Dr. Pifarré, IRBLLEIDA, Lérida, España
| | - Aureli Esquerda
- Servicio de Análisis Clínicos, Hospital Universitario Arnau de Vilanova, Lérida, España
| | - Antonieta Salud
- Servicio de Oncología Médica, Hospital Universitario Arnau de Vilanova, Lérida, España
| | - Silvia Bielsa
- Unidad de Medicina Pleural, Hospital Universitario Arnau de Vilanova, Instituto de Investigación Biomédica de Lleida Fundación Dr. Pifarré, IRBLLEIDA, Lérida, España
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31
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Murphy AJ, O'Neill P, O'Brien F, Enright H, Jeffers M, Thornhill JA, Loftus BM. Anaplastic Large Cell Lymphoma: A Unique Presentation with Urinary Bladder Involvement. Int J Surg Pathol 2016; 13:369-73. [PMID: 16273198 DOI: 10.1177/106689690501300414] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 11/15/2022]
Abstract
Anaplastic large cell lymphoma (ALCL) is a T-cell lymphoma composed of large pleomorphic CD30-positive cells. While systemic ALCL frequently involves extranodal sites, involvement of the urinary bladder is extremely rare. We report a case of systemic ALCL presenting with bladder involvement. A 28-year-old man presented with hematuria, dysuria, and lower abdominal pain. Imaging revealed pelvic lymphadenopathy and a thickened bladder wall. Bladder biopsies showed diffuse infiltration of the lamina propria by large pleomorphic cells, with preservation of the overlying urothelium. Immunohistochemistry demonstrated cell membrane and Golgi region staining for CD30 and epithelial membrane antigen. This is the first documented instance of systemic ALCL presenting with bladder symptoms.
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Affiliation(s)
- Amanda J Murphy
- Department of Cellular Pathology, The Adelaide and Meath Hospital, Tallaght, Dublin, Ireland
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32
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Kuroda N, Sugimoto T, Takahashi T, Moriki T, Toi M, Miyazaki E, Hiroi M, Enzan H. Invasive Micropapillary Carcinoma of the Breast: An Immunohistochemical Study of Neoplastic and Stromal Cells. Int J Surg Pathol 2016; 13:51-5. [PMID: 15735855 DOI: 10.1177/106689690501300107] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 11/16/2022]
Abstract
A 59-year-old woman complained of a palpable mass in the right breast, and a needle biopsy disclosed small clusters of neoplastic cells in the fibrous stroma. The small clusters did not contain fibrovascular cores but exhibited micropapillary configuration. Epithelial membrane antigen (EMA) immunohistochemistry confirmed the reverse polarity of the neoplastic cells. Additionally, the plasma membrane of many neoplastic cells stained with E-cadherin and f-catenin. Myofibroblasts, which were positive for alpha smooth muscle actin (ASMA) and negative for cytokeratin 14, were abundant in the neoplastic stroma, but no CD34-positive stromal cells were observed in the neoplastic stroma. For comparison, 3 additional cases of invasive micropapillary carcinoma (IMC) and 4 cases of invasive ductal carcinoma (IDC) were studied. Similar results for stromal cells were obtained in all cases. Our results from this preliminary investigation suggest that CD34-positive stromal cells may disappear from the stroma of IMC as well as IDC.
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Affiliation(s)
- Naoto Kuroda
- Department of Pathology, Kochi Medical School, Kochi, Japan
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Wiest I, Alexiou C, Friese K, Betz P, Tübel J, Goletz S, Dian D, Jeschke U. Expression of the Tumor-associated Mucin 1 Epitope Analyzed with the Humanized PankoMab-GEX™ Antibody in Malignant and Normal Tissues of the Head and Neck. Anticancer Res 2016; 36:3179-3184. [PMID: 27272845] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 05/08/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND During neoplasia, glycosylation changes. In this setting, mucins, especially mucin 1 (MUC1), become carriers for oncofetal carbohydrates and relieve invasive growth. The recently described tumor-associated MUC1 epitope TA-MUC1 is primarily restricted to malignancies and is overexpressed in these tissues. The humanized monoclonal antibody PankoMab-GEX specifically recognizes TA-MUC1. MATERIALS AND METHODS Laryngeal cancer specimens (n=125) and normal tissue of head and neck (n=7) were used in this study. Paraffin-embedded sections were incubated with PankoMab-GEX. Staining reaction was carried out using peroxidase (POD) labeling and diaminobenzidine (DAB). Breast cancer tissue was used as positive control and negative control used non-specific mouse IgM. Semi-quantitative evaluation by two independent double-blinded investigators, including a pathologist, used the immunoreactive score (IRS) of Remmele and Stegner. RESULTS A total of 31 out of 125 laryngeal cancer specimens were classified as G1. Of these, 22 (71%) were completely negative for TA-MUC1, the remaining 9 showed very weak staining, with an IRS of 2. A total of 94 cases of cancer specimens were classified as G2 and G3; 34 of them were also negative, but 60 had an IRS of up to 9. All investigated normal tissue of the upper aerodigestive tract was completely negative for TA-MUC1. CONCLUSION G1 tumors are completely negative or do not reach an IRS relevant range. The finding that G1 tumors are completely negative for TA-MUC1 or have IRS≤2 can be helpful for histopathological examination, especially concerning tumor grading. Therefore, this antibody holds great potential for use as a therapeutic antibody in laryngeal cancer.
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Affiliation(s)
- Irmi Wiest
- Department of Obstetrics and Gynecology - Innenstadt, Ludwig Maximilians University, Munich, Germany
| | - Christoph Alexiou
- Section of Experimental Oncology and Nanomedicine, Department of Otorhinolaryngology, Head and Neck Surgery, Friedrich Alexander University Erlangen, Erlangen, Germany
| | - Klaus Friese
- Department of Obstetrics and Gynecology - Innenstadt, Ludwig Maximilians University, Munich, Germany
| | - Peter Betz
- Department of Legal Medicine, Friedrich Alexander University Erlangen, Erlangen, Germany
| | - Jutta Tübel
- Department of Orthopedics, Technical University Munich, Munich, Germany
| | | | - Darius Dian
- Department of Obstetrics and Gynecology - Innenstadt, Ludwig Maximilians University, Munich, Germany
| | - Udo Jeschke
- Department of Obstetrics and Gynecology - Innenstadt, Ludwig Maximilians University, Munich, Germany
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Quoix E, Lena H, Losonczy G, Forget F, Chouaid C, Papai Z, Gervais R, Ottensmeier C, Szczesna A, Kazarnowicz A, Beck JT, Westeel V, Felip E, Debieuvre D, Madroszyk A, Adam J, Lacoste G, Tavernaro A, Bastien B, Halluard C, Palanché T, Limacher JM. TG4010 immunotherapy and first-line chemotherapy for advanced non-small-cell lung cancer (TIME): results from the phase 2b part of a randomised, double-blind, placebo-controlled, phase 2b/3 trial. Lancet Oncol 2016; 17:212-223. [PMID: 26727163 DOI: 10.1016/s1470-2045(15)00483-0] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 10/26/2015] [Accepted: 11/02/2015] [Indexed: 12/16/2022]
Abstract
BACKGROUND MUC1 is a tumour-associated antigen expressed by many solid tumours, including non-small-cell lung cancer. TG4010 is a modified vaccinia Ankara expressing MUC1 and interleukin 2. In a previous study, TG4010 combined with chemotherapy showed activity in non-small-cell lung cancer and the baseline value of CD16, CD56, CD69 triple-positive activated lymphocytes (TrPAL) was shown to be potentially predictive of TG4010 efficacy. In this phase 2b part of the phase 2b/3 TIME trial, we further assess TG4010 in combination with first-line chemotherapy and use of the TrPAL biomarker in this setting. METHODS In this phase 2b part of a randomised, double-blind, placebo-controlled, phase 2b/3 trial, we recruited previously untreated patients aged 18 years or older with stage IV non-small-cell lung cancer without a known activating EGFR mutation and with MUC1 expression in at least 50% of tumoural cells. Patients were randomly allocated (1:1) by an external service provider to subcutaneous injections of 10(8) plaque-forming units of TG4010 or placebo from the beginning of chemotherapy every week for 6 weeks and then every 3 weeks up to progression, discontinuation for any reason, or toxic effects, stratified according to baseline value of TrPAL (≤ or > the upper limit of normal [ULN]) and, in addition, a dynamic minimisation procedure was used, taking into account chemotherapy regimen, histology, addition or not of bevacizumab, performance status, and centre. Patients, site staff, monitors, the study funder, data managers, and the statistician were masked to treatment identity. The primary endpoint was progression-free survival, assessed every 6 weeks, to validate the predictive value of the TrPAL biomarker. If patients with TrPAL values of less than or equal to the ULN had a Bayesian probability of more than 95% that the true hazard ratio (HR) for progression-free survival was less than 1, and if those with TrPAL values of greater than the ULN had a probability of more than 80% that the true HR for progression-free survival was more than 1, the TrPAL biomarker would be validated. We did primary analyses in the intention-to-treat population and safety analyses in those who had received at least one dose of study drug and had at least one valid post-baseline safety assessment. Monitors, site staff, and patients are still masked to treatment assignment. This trial is registered with ClinicalTrials.gov, number NCT01383148. FINDINGS Between April 10, 2012, and Sept 12, 2014, we randomly allocated 222 patients (TG4010 and chemotherapy 111 [50%]; placebo and chemotherapy 111 [50%]). In the whole population, median progression-free survival was 5·9 months (95% CI 5·4-6·7) in the TG4010 group and 5·1 months (4·2-5·9) in the placebo group (HR 0·74 [95% CI 0·55-0·98]; one-sided p=0·019). In patients with TrPAL values of less than or equal to the ULN, the HR for progression-free survival was 0·75 (0·54-1·03); the posterior probability of the HR being less than 1 was 98·4%, and thus the primary endpoint was met. In patients with TrPAL values of greater than the ULN, the HR for progression-free survival was 0·77 (0·42-1·40); the posterior probability of the HR being greater than 1 was 31·3%, and the primary endpoint was not met. We noted grade 1-2 injection-site reactions in 36 (33%) of 110 patients in the TG4010 group versus four (4%) of 107 patients in the placebo group. We noted no grade 3 or 4 nor serious adverse events deemed to be related to TG4010 only. Four (4%) patients presented grade 3 or 4 adverse events related to TG4010 and other study treatments (chemotherapy or bevacizumab) versus 11 (10%) in the placebo group. No serious adverse event was related to the combination of TG4010 with other study treatments. The most frequent severe adverse events were neutropenia (grade 3 29 [26%], grade 4 13 [12%] in the TG4010 group vs grade 3 22 [21%], grade 4 11 [10%] in the placebo group), anaemia (grade 3 12 [11%] vs grade 3 16 [15%]), and fatigue (grade 3 12 [11%], grade 5 one [1%] vs grade 3 13 [12%]; no grade 4 events). INTERPRETATION TG4010 plus chemotherapy seems to improve progression-free survival relative to placebo plus chemotherapy. These data support the clinical value of the TrPAL biomarker in this clinical setting; because the primary endpoint was met, the trial is to continue into the phase 3 part. FUNDING Transgene, Avancées Diagnostiques pour de Nouvelles Approches Thérapeutiques (ADNA), and OSEO.
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Affiliation(s)
- Elisabeth Quoix
- Department of Pulmonology, Nouvel Hôpital Civil, Hôpitaux Universitaires de Strasbourg, Strasbourg Cedex, France.
| | - Hervé Lena
- Department of Pulmonology, Centre Hospitalier Universitaire Rennes, Rennes, France
| | - Gyorgy Losonczy
- Department of Pulmonology, Semmelweis University, Budapest, Hungary
| | - Frédéric Forget
- Department of Oncology, Centre Hospitalier de l'Ardenne, Libramont, Belgium
| | - Christos Chouaid
- Department of Pulmonology, Centre Hospitalier Intercommunal Créteil, Créteil, France
| | - Zsolt Papai
- Department of Pulmonology, Szent Gyorgy Korhaz, Szekesfehervar, Hungary
| | - Radj Gervais
- Department of Pulmonology, Centre François Baclesse, Caen, France
| | - Christian Ottensmeier
- Cancer Sciences Division, Southampton University Hospitals NHS Trust, Southampton, UK
| | - Aleksandra Szczesna
- Department of Lung Diseases, Mazowieckie Centrum Leczenia Chorób Płuc i Gruźlicy, Otwock, Poland
| | - Andrzej Kazarnowicz
- Department of Oncology, Samodzielny Publiczny Zespół Gruźlicy i Chorób Płuc w Olsztynie, Olsztyn, Poland
| | | | - Virginie Westeel
- Department of Pulmonology, Centre Hospitalier Universitaire Besançon, Besançon, France
| | - Enriqueta Felip
- Institut d'Oncologia, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Didier Debieuvre
- Department of Pulmonology, Hôpital Emile Muller, Mulhouse, France
| | | | - Julien Adam
- Department of Pathology, Institut Gustave Roussy, Villejuif, France
| | | | | | | | | | | | - Jean-Marc Limacher
- Transgene SA, Strasbourg, France; Department of Oncology and Hematology, Louis Pasteur Hospital, Colmar, France
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Mao X, Gu C, Hu H, Tang J, Chen D, Yu B, He J, Yu J, Luo J, Tian G. Dietary Lactobacillus rhamnosus GG Supplementation Improves the Mucosal Barrier Function in the Intestine of Weaned Piglets Challenged by Porcine Rotavirus. PLoS One 2016; 11:e0146312. [PMID: 26727003 PMCID: PMC4699646 DOI: 10.1371/journal.pone.0146312] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 12/15/2015] [Indexed: 01/04/2023] Open
Abstract
Lactobacillus rhamnosus GG (LGG) has been regarded as a safe probiotic strain. The aim of this study was to investigate whether dietary LGG supplementation could alleviate diarrhea via improving jejunal mucosal barrier function in the weaned piglets challenged by RV, and further analyze the potential roles for apoptosis of jejunal mucosal cells and intestinal microbiota. A total of 24 crossbred barrows weaned at 21 d of age were assigned randomly to 1 of 2 diets: the basal diet and LGG supplementing diet. On day 11, all pigs were orally infused RV or the sterile essential medium. RV infusion increased the diarrhea rate, increased the RV-Ab, NSP4 and IL-2 concentrations and the Bax mRNA levels of jejunal mucosa (P<0.05), decreased the villus height, villus height: crypt depth, the sIgA, IL-4 and mucin 1 concentrations and the ZO-1, occludin and Bcl-2 mRNA levels of jejunal mucosa (P<0.05), and affected the microbiota of ileum and cecum (P<0.05) in the weaned pigs. Dietary LGG supplementation increased the villus height and villus height: crypt depth, the sIgA, IL-4, mucin 1 and mucin 2 concentrations, and the ZO-1, occludin and Bcl-2 mRNA levels of the jejunal mucosa (P<0.05) reduced the Bax mRNA levels of the jejunal mucosa (P<0.05) in weaned pigs. Furthermore, dietary LGG supplementation alleviated the increase of diarrhea rate in the weaned pigs challenged by RV (P<0.05), and relieve the effect of RV infection on the villus height, crypt depth and the villus height: crypt depth of the jejunal mucosa (P<0.05), the NSP4, sIgA, IL-2, IL-4, mucin 1 and mucin 2 concentrations of jejunal mucosa (P<0.05), the ZO-1, occludin, Bax and Bcl-2 mRNA levels of the jejunal mucosa (P<0.05), and the microbiota of ileum and cecum (P<0.05) in the weaned pigs challenged by RV. These results suggest that supplementing LGG in diets alleviated the diarrhea of weaned piglets challenged by RV via inhibiting the virus multiplication and improving the jejunal mucosal barrier function, which was possibly due to the decreasing apoptosis of jejunal mucosal cells and the improvement of intestinal microbiota.
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Affiliation(s)
- Xiangbing Mao
- Animal Nutrition Institute, Sichuan Agricultural University, Yucheng District, Ya’an, People’s Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, China, Ya’an, People’s Republic of China
- * E-mail:
| | - Changsong Gu
- Animal Nutrition Institute, Sichuan Agricultural University, Yucheng District, Ya’an, People’s Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, China, Ya’an, People’s Republic of China
| | - Haiyan Hu
- Animal Nutrition Institute, Sichuan Agricultural University, Yucheng District, Ya’an, People’s Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, China, Ya’an, People’s Republic of China
| | - Jun Tang
- Animal Nutrition Institute, Sichuan Agricultural University, Yucheng District, Ya’an, People’s Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, China, Ya’an, People’s Republic of China
| | - Daiwen Chen
- Animal Nutrition Institute, Sichuan Agricultural University, Yucheng District, Ya’an, People’s Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, China, Ya’an, People’s Republic of China
| | - Bing Yu
- Animal Nutrition Institute, Sichuan Agricultural University, Yucheng District, Ya’an, People’s Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, China, Ya’an, People’s Republic of China
| | - Jun He
- Animal Nutrition Institute, Sichuan Agricultural University, Yucheng District, Ya’an, People’s Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, China, Ya’an, People’s Republic of China
| | - Jie Yu
- Animal Nutrition Institute, Sichuan Agricultural University, Yucheng District, Ya’an, People’s Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, China, Ya’an, People’s Republic of China
| | - Junqiu Luo
- Animal Nutrition Institute, Sichuan Agricultural University, Yucheng District, Ya’an, People’s Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, China, Ya’an, People’s Republic of China
| | - Gang Tian
- Animal Nutrition Institute, Sichuan Agricultural University, Yucheng District, Ya’an, People’s Republic of China
- Key Laboratory of Animal Disease-Resistance Nutrition, Ministry of Education, China, Ya’an, People’s Republic of China
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Cabuk D, Yetimoglu E, Simsek T, Gacar G, Subasi C, Canturk Z, Ercin C, Karaoz E, Uygun K. The distribution of CD44+/CD24- cancer stem cells in breast cancer and its relationship with prognostic factors. J BUON 2016; 21:1121-1128. [PMID: 27837613] [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: 06/06/2023]
Abstract
PURPOSE The purpose of this study was to investigate the correlation between the percentages of CD44+/CD24- cancer stem cells (CSCs) and the clinicopathological and prognostic factors in breast cancer patients. METHODS Twenty three women who underwent surgery for breast cancer were enrolled in this study. The mean age of the patients was 46.65 years and 52% had early-stage disease. Tumor tissues obtained during surgery were digested enzymatically. CD44+/CD24- cell phenotype was identified by using surface marker antibodies and percentages were determined by surface marker expression of the cells. RESULTS Sixty five percent of the tumors were positive for estrogen (ER)/ progesterone receptors (PR) and 38% of the tumors were positive for HER-2. All of the patients with hormone receptor positive tumors had ER positive tumors, while only 11 patients had PR positive breast cancer. CD44+/CD24- cells were present in all tumor tissues. The mean proportion of the CD44+/CD24- cells was 1.43±1.6. The mean percentages of CD18+ cells and MUC1+ were 27.9±26.5% and 6.07±11.34%, respectively. The percentage of CD18+ cells was significantly higher in PR positive tumors (p=0.042). There was no significant correlation between the percentage of CD44+/CD24- cells and clinicopathological features. CONCLUSION This study showed that CD44+/CD24- cells were present in all tumor tissues. The percentage of CD44+/CD24- cells was higher in early-stage disease, yet without statistical significance. No correlation was found between prognostic factors and the percentage of the CD44+/CD24- cells.
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Affiliation(s)
- Devrim Cabuk
- Department of Medical Oncology, Kocaeli University School of Medicine, Kocaeli, Turkey
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Li C, Meng Y, Wang S, Qian M, Wang J, Lu W, Huang R. Mesoporous Carbon Nanospheres Featured Fluorescent Aptasensor for Multiple Diagnosis of Cancer in Vitro and in Vivo. ACS Nano 2015; 9:12096-103. [PMID: 26575351 DOI: 10.1021/acsnano.5b05137] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Multiple diagnosis of cancer by a facile fluorescent sensor is extremely attractive. Herein, a Cy3-labeled ssDNA probe (P0-Cy3) was π-π stacked on the surface of oxidized mesoporous carbon nanospheres (OMCN) to construct the fluorescent "turn-on" aptasensor. Attributing to the intrinsic properties of OMCN, the OMCN-based aptasensor not only can be used to detect mucin1 protein in liquid with a wide range of 0.1-10.6 μmol/L, a low detection limit of 6.52 nmol/L, and good selectivity, but also can quantify the cancer cells in solution with the linear range of 10(4)-2 × 10(6) cells/mL and a detection limit of 8500 cells/mL. Fascinatingly, this OMCN-based aptasensor was exploited to image cancer via solid tissues such as cells, tissue sections, and ex vivo and in vivo tumors, in which the obvious distinguishability between cancer and normal tissues was clearly demonstrated. This is a robust and simple detection technique, which can well achieve the multiple diagnosis of cancer in vitro and in vivo.
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Affiliation(s)
- Chengyi Li
- Department of Pharmaceutics, School of Pharmacy, Key Laboraty of Smart Drug Delivery, Ministry of Education, Fudan University , Shanghai 201203, China
| | - Ying Meng
- Department of Pharmaceutics, School of Pharmacy, Key Laboraty of Smart Drug Delivery, Ministry of Education, Fudan University , Shanghai 201203, China
| | - Shanshan Wang
- Department of Pharmaceutics, School of Pharmacy, Key Laboraty of Smart Drug Delivery, Ministry of Education, Fudan University , Shanghai 201203, China
| | - Min Qian
- Department of Pharmaceutics, School of Pharmacy, Key Laboraty of Smart Drug Delivery, Ministry of Education, Fudan University , Shanghai 201203, China
| | - Jianxin Wang
- Department of Pharmaceutics, School of Pharmacy, Key Laboraty of Smart Drug Delivery, Ministry of Education, Fudan University , Shanghai 201203, China
| | - Weiyue Lu
- Department of Pharmaceutics, School of Pharmacy, Key Laboraty of Smart Drug Delivery, Ministry of Education, Fudan University , Shanghai 201203, China
| | - Rongqin Huang
- Department of Pharmaceutics, School of Pharmacy, Key Laboraty of Smart Drug Delivery, Ministry of Education, Fudan University , Shanghai 201203, China
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Tauziède-Espariat A, Raffoul J, Sun SR, Monnin C, Lassabe C, Costes V. [A bilateral epithelial myoepithelial carcinoma of the parotid gland]. Ann Pathol 2015; 35:489-95. [PMID: 26586087 DOI: 10.1016/j.annpat.2015.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 05/23/2015] [Accepted: 07/24/2015] [Indexed: 11/17/2022]
Abstract
We report the case of a 52-year-old man, who was admitted in the department of otorhinolaryngology for a mass of the right parotid gland. The radiological and clinical hypothesis was a squamous cell carcinoma. Histopathological examination revealed a biphasic proliferation composed of epithelial cells arranged in a tubular pattern stained with cytokeratins 5-6 and 7 and EMA surrounded by clear myoepithelial cells stained with smooth muscle actin and p63. Ki-67 labeling index was low. The diagnosis of epithelial myoepithelial carcinoma was proposed. One year after, the patient noticed a centimetric mass of the left parotid gland. The radiological hypothesis was the presence of an intraparotidian lymph node. Histopathological examination showed a second epithelial myoepithelial carcinoma. This is an uncommon neoplasm comprising approximately 1% of all salivary gland tumours, affecting mainly the parotid gland. It is occurring preferably in patients older than 60years old. This is a low-grade malignant tumour with tendency to local recurrence and lymph node metastatic potential. We describe an exceptional bilateral epithelial myoepithelial carcinoma of the parotid gland.
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Affiliation(s)
- Arnault Tauziède-Espariat
- Service de pathologie, centre hospitalier de Montbéliard, 12, rue Docteur-Flamand, 25200 Montbéliard, France.
| | - Johnny Raffoul
- Service de pathologie, centre hospitalier de Montbéliard, 12, rue Docteur-Flamand, 25200 Montbéliard, France
| | - Shan Rong Sun
- Service de pathologie, centre hospitalier de Montbéliard, 12, rue Docteur-Flamand, 25200 Montbéliard, France
| | - Christine Monnin
- Service de pathologie, centre hospitalier de Montbéliard, 12, rue Docteur-Flamand, 25200 Montbéliard, France
| | - Catherine Lassabe
- Service de pathologie, centre hospitalier de Montbéliard, 12, rue Docteur-Flamand, 25200 Montbéliard, France
| | - Valérie Costes
- Service de pathologie, CHU Lapeyronie, 191, avenue du Doyen-Giraud, 34295 Montpellier, France
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Yatsuyanagi E, Sato K, Sato K. [Immunohistochemical Analysis of Krebs von den Lungen-6 (KL-6) Expression in Lung Tissue in Primary Lung Cancer Patients with High Serum KL-6 Levels]. Kyobu Geka 2015; 68:815-819. [PMID: 26329623] [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: 06/05/2023]
Abstract
We investigated sialylated carbohydrate antigen( Krebs von den Lungen-6:KL-6) expression in lung tissue and correlation between the expression and serum KL-6 level in the patients with primary lung cancer. Thirty-four primary lung cancer patients with high serum KL-6 levels( >500 U/ml) were evaluated. A coexistence of interstitial pneumonia (IP) was histopathologically evaluated and an immunohistochemical staining using a mouse anti-human KL-6 antibody (mKL-6) was performed. A multiple regression analysis was also caluculated using a serum KL-6 level as a target variable and the histopathological and immunohistochemical factors (KL-6 expression in cancer tissue and IP tissue, coexistence of IP, tumor size, pathological staging) as descriptive variables. Twenty-two patients (64.7%) were histopathologically concomitant with IP. Cancer tissues were positively stained by mKL-6 in 32 patients (94.1%). Among them, 20 patients were concomitant with IP and all of their cancer tissues were more strongly stained by mKL-6 than IP tissues. Although considerable high rate of lung cancer patients might express the KL-6 in the cancer tissue, we could not reveal the relationship between the expression and serum KL-6 level by a multiple regression analysis. For revealing the mechanism of elevating serum KL-6 level in the patients with lung cancer, more detailed and powerful study is thought to be needed.
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Affiliation(s)
- Eiji Yatsuyanagi
- Department of Chest Surgery, National Obihiro Hospital, Obihiro, Japan
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Ji T, Ma F, Huo L, Guo X, Chen B, Zhou Q. Calponin-h2 is upregulated in the tissues and plasma of patients with breast cancer. Mol Med Rep 2015; 12:2886-92. [PMID: 25976781 DOI: 10.3892/mmr.2015.3782] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 04/04/2015] [Indexed: 11/06/2022] Open
Abstract
Increasing evidence has demonstrated that changes in plasma nuclear matrix proteins are specific markers of cancer. Furthermore, proteomic analysis has revealed that calponin-h2 is upregulated in human breast cancer tissue, but is absent in healthy and benign controls. However, the roles of levels of plasma calponin-h2 in the diagnosis of breast cancer and its association with clinicopathological parameters remain to be elucidated. In the present study, the plasma levels of calponin-h2 in patients with breast cancer, benign breast disease and in healthy controls were examined using an enzyme-linked immunosorbent assay. The expression levels of calponin-h2 in invasive breast cancer and normal breast tissues were measured using immunohistochemistry. Statistical analyses examined the association between the levels of plasma calponin-h2 and clinicopathological parameters. The results demonstrated that the plasma level of calponin-h2 in breast cancer was significantly higher than those in the healthy control and benign breast disease groups (P<0.05). The combination of calponin-h2, carcinoembryonic antigen, carbohydrate antigen 15-3 improved the diagnosis of breast cancer. The plasma levels of calponin-h2 PR-breast cancers was significantly higher, compared with PR+ breast cancers (P=0.033), and the plasma levels of calponin-h2 in patients with breast cancer aged >50 years was significantly higher than in patients ≤ 50 years of age (P=0.001). No association was found between the level of plasma calponin-h2 and other clinicopathological parameters of breast cancer. Taken together, these results indicated that calponin-h2 may be a useful marker of breast cancer.
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Affiliation(s)
- Tianxing Ji
- Department of Clinical Laboratory, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, P.R. China
| | - Feifei Ma
- Department of VIP Obstetrics, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, P.R. China
| | - Leijun Huo
- Department of Pathology, Guangdong Women and Children Hospital, Guangzhou, Guangdong 511442, P.R. China
| | - Xuguang Guo
- Department of Clinical Laboratory, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510140, P.R. China
| | - Bo Chen
- Department of Clinical Laboratory, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, P.R. China
| | - Qiang Zhou
- Department of Clinical Laboratory, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510260, P.R. China
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Sabourin JC. [Peritoneal tumor pathology - case no 4: an aggressive peritoneal tumor]. Ann Pathol 2015; 35:338-41. [PMID: 26189364 DOI: 10.1016/j.annpat.2015.05.015] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Accepted: 05/25/2015] [Indexed: 11/18/2022]
Affiliation(s)
- Jean-Christophe Sabourin
- Service de pathologie, pôle de biologie-pathologie-physiologie, CHU de Rouen, 1, rue de Germont, 76031 Rouen cedex, France.
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Barresi V, Branca G, Ieni A, Rigoli L, Tuccari G, Caruso RA. Phagocytosis (cannibalism) of apoptotic neutrophils by tumor cells in gastric micropapillary carcinomas. World J Gastroenterol 2015; 21:5548-5554. [PMID: 25987778 PMCID: PMC4427677 DOI: 10.3748/wjg.v21.i18.5548] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 12/30/2014] [Accepted: 02/12/2015] [Indexed: 02/06/2023] Open
Abstract
AIM: To identify those with a micropapillary pattern, ascertain relative frequency and document clinicopathological characteristics by reviewing gastric carcinomas.
METHODS: One hundred and fifty-one patients diagnosed with gastric cancer who underwent gastrectomy were retrospectively studied and the presence of a regional invasive micropapillary component was evaluated by light microscopy. All available hematoxylin-eosin (HE)-stained slides were histologically reviewed and 5 tumors were selected as putative micropapillary carcinoma when cancer cell clusters without a vascular core within empty lymphatic-like space comprised at least 5% of the tumor. Tumor tissues from these 5 invasive gastric carcinomas were immunostained using an anti-mucin 1 (MUC1) antibody (clone MA695) to detect the characteristic inside-out pattern and with D2-40 antibody to determine the presence of intratumoral lymph vessels. Detection of intraepithelial neutrophil apoptosis was evaluated in consecutive histological tissue sections by three independent methods, namely light microscopy with HE staining, the conventional terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end-labeling (TUNEL) method and immunohistochemistry for activated caspase-3 (clone C92-605).
RESULTS: Among 151 gastric cancers resected for cure, 5 (3.3%) were adenocarcinomas with a micropapillary component. Four of the patients died of disease from 6 to 23 mo and one patient was alive with metastases at 9 mo. All patients had advanced-stage cancer (≥ pT2) and lymph node metastasis. Positive MUC1 immunostaining on the stroma-facing surface (inside-out pattern) of the carcinomatous cluster cells, together with negative immunostaining for D2-40 in the cells limiting lymphatic-like spaces, confirmed the true micropapillary pattern in these gastric neoplasms. In all five cases, several micropapillae were infiltrated by neutrophils. HE staining, TUNEL assay and immunostaining for caspase-3 demonstrated apoptotic neutrophils within cytoplasmic vacuoles of tumor cells. These data suggest phagocytosis (cannibalism) of apoptotic neutrophils by micropapillary tumor cells. Tumor cell cannibalism is usually found in aggressive tumors with anaplastic morphology. Our data extend these observations to gastric micropapillary carcinoma: a tumor histotype analogously characterized by aggressive behavior and poor prognosis. The results are of interest because they raise the intriguing possibility that neutrophil cannibalism by tumor cells may be one of the mechanisms favoring tumor growth in gastric micropapillary carcinomas.
CONCLUSION: This is the first study showing phagocytosis (cannibalism) of apoptotic neutrophils by tumor cells in gastric micropapillary carcinomas.
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Balli M, Zhao M, Zimmermann A. Polycystic liver disease: immunohistochemical characterization of cyst epithelia and extracellular matrix. Contrib Nephrol 2015; 115:127-33. [PMID: 8585899 DOI: 10.1159/000424409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- M Balli
- Institute of Pathology, University of Bern, Switzerland
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Wen W, Hu R, Bao T, Zhang X, Wang S. An insertion approach electrochemical aptasensor for mucin 1 detection based on exonuclease-assisted target recycling. Biosens Bioelectron 2015; 71:13-17. [PMID: 25880833 DOI: 10.1016/j.bios.2015.04.001] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Revised: 03/17/2015] [Accepted: 04/05/2015] [Indexed: 02/07/2023]
Abstract
In this work, a sensitive exonuclease-assisted amplification electrochemical aptasensor through insertion approach was developed for the detection of mucin 1 (MUC 1). In order to construct the aptasensor, 6-Mercapto-1-hexanol (MCH) was used to block partial sites of gold electrode (GE), followed by thiolated capture probe self-assembled on GE. Methylene blue (MB) labeled aptamer hybridized with capture probe at both ends to form double-strand DNA. For the MB labeled termini was close to GE, the electrochemical response was remarkable. The presence of MUC 1 caused the dissociation of the double-strand DNA owing to the specific recognition of aptamer to MUC 1. Then exonuclease I (Exo I) selectively digested the aptamer which bound with MUC 1, the released MUC 1 participated new binding with the rest aptamer. Insertion approach improved the reproducibility and Exo I-catalyzed target recycling improved the sensitivity of the aptasensor significantly. Under optimal experimental conditions, the proposed aptasensor had a good linear correlation ranged from 10 pM to 1 μM with a detection limit of 4 pM (Signal to Noise ratio, S/N=3). The strategy had great potential for the simple and sensitive detection of other cancer markers.
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Affiliation(s)
- Wei Wen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Rong Hu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Ting Bao
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Xiuhua Zhang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China
| | - Shengfu Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules & College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
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Xu L, Yan W, Ma W, Kuang H, Wu X, Liu L, Zhao Y, Wang L, Xu C. SERS encoded silver pyramids for attomolar detection of multiplexed disease biomarkers. Adv Mater 2015; 27:1706-11. [PMID: 25641772 DOI: 10.1002/adma.201402244] [Citation(s) in RCA: 206] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Revised: 12/04/2014] [Indexed: 05/20/2023]
Abstract
Three disease biomarkers can simultaneously be detected at the attomolar level because of a novel surface-enhanced Raman scattering (SERS) encoded silver pyramid sensing system. This newly designed pyramidal sensor with well-controlled geometry exhibits highly sensitive, selective, and reproducible SERS signals, and holds promising potential for biodetection applications.
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Affiliation(s)
- Liguang Xu
- State Key Lab of Food Science and Technology, School of Food Science and Technology, Jiangnan University Wuxi, Jiangsu, 214122, P.R. China
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Niv Y, Boltin D, Halpern M, Cohen M, Levi Z, Vilkin A, Morgenstern S, Manugian V, Lawrence ES, Gagneux P, Kaur S, Sharma P, Batra SK, Ho SB. Membrane-bound mucins and mucin terminal glycans expression in idiopathic or Helicobacter pylori, NSAID associated peptic ulcers. World J Gastroenterol 2014; 20:14913-14920. [PMID: 25356051 PMCID: PMC4209554 DOI: 10.3748/wjg.v20.i40.14913] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 09/28/2013] [Accepted: 11/29/2013] [Indexed: 02/06/2023] Open
Abstract
AIM: To determine the expression of membrane-bound mucins and glycan side chain sialic acids in Helicobacter pylori (H. pylori)-associated, non-steroidal inflammatory drug (NSAID)-associated and idiopathic-gastric ulcers.
METHODS: We studied a cohort of randomly selected patients with H. pylori (group 1, n = 30), NSAID (group 2, n = 18), combined H. pylori and NSAID associated gastric ulcers (group 3, n = 24), and patients with idiopathic gastric ulcers (group 4, n = 20). Immunohistochemistry for MUC1, MUC4, MUC17, and staining for Erythrina cristagalli agglutinin and Sambucus nigra agglutinin (SNA) lectins was performed on sections from the ulcer margins.
RESULTS: Staining intensity of MUC17 was higher in H. pylori ulcers (group 1) than in idiopathic ulcers (group 4), 11.05 ± 3.67 vs 6.93 ± 4.00 for foveola cells, and 10.29 ± 4.67 vs 8.00 ± 3.48 for gland cells, respectively (P < 0.0001). In contrast, MUC1 expression was higher in group 4 compared group 1, 9.89 ± 4.17 vs 2.93 ± 5.13 in foveola cells and 7.63 ± 4.60 vs 2.57± 4.50 for glands, respectively (P < 0.0001). SNA lectin staining was increased in group 4, in parallel to elevated MUC1 expression, indicating more abundant α2-6 sialylation in that group.
CONCLUSION: Cytoplasmic MUC17 staining was significantly decreased in the cases with idiopathic ulcer. The opposite was observed for both MUC1 and SNA lectin. This observation may reflect important pathogenic mechanisms, since different mucins with altered sialylation patterns may differ in their protection efficiency against acid and pepsin.
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Chen X, Zhang Q, Qian C, Hao N, Xu L, Yao C. Electrochemical aptasensor for mucin 1 based on dual signal amplification of poly(o-phenylenediamine) carrier and functionalized carbon nanotubes tracing tag. Biosens Bioelectron 2014; 64:485-92. [PMID: 25290645 DOI: 10.1016/j.bios.2014.09.052] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 09/11/2014] [Accepted: 09/16/2014] [Indexed: 12/22/2022]
Abstract
Mucin 1 (MUC 1), as a most studied mucin, has become a useful marker for identifying breast cancer in the early stages. In this work, a novel method for the determination of MUC 1 in serum was developed based on a sandwich-type electrochemical aptasensor, which combined a dual signal amplification strategy of poly(o-phenylenediamine)-Au nanoparticles (PoPD-AuNPs) hybrid film as carrier and AuNPs functionalized silica/multiwalled carbon nanotubes core-shell nanocomposites (AuNPs/SiO2@MWCNTs) as tracing tag. The PoPD-AuNPs film provides a suitable microenvironment for stabilizing the primary aptamer (Apt) assembly, and the AuNPs/SiO2@MWCNTs enhances the surface area for immobilizing abundant secondary Apts as well as load large amounts of electrochemical probe thionine (Thi). In the presence of MUC 1, the sandwich-type recognition reacted on the aptasensor surface, and the Thi-AuNPs/SiO2@MWCNTs nanoprobes were captured onto the electrode surface to form biocomplex. AuNPs and MWCNTs could facilitate the electron transfer from Thi to the electrode, thus amplifying the detection response. Under the optimized experimental conditions, the proposed sensing strategy provided a wider linear dynamic range over three orders of magnitude with the detection limit down to 1 pM. Moreover, the aptasensor demonstrated good precision, acceptable stability and reproducibility.
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Affiliation(s)
- Xiaojun Chen
- College of Sciences, Nanjing Tech University, Nanjing 211816, PR China.
| | - Qi Zhang
- College of Sciences, Nanjing Tech University, Nanjing 211816, PR China; Geological Survey of Jiangsu Province, Nanjing 210018, PR China
| | - Chunhua Qian
- College of Sciences, Nanjing Tech University, Nanjing 211816, PR China
| | - Ning Hao
- Biotechnology and Pharmaceutical Engineering,Nanjing Tech University, Nanjing 211816, PR China
| | - Lin Xu
- Biotechnology and Pharmaceutical Engineering,Nanjing Tech University, Nanjing 211816, PR China
| | - Cheng Yao
- College of Sciences, Nanjing Tech University, Nanjing 211816, PR China.
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Wang H, He Y, Chai Y, Yuan R. A super intramolecular self-enhanced electrochemiluminescence immunosensor based on polymer chains grafted on palladium nanocages. Nanoscale 2014; 6:10316-10322. [PMID: 25072965 DOI: 10.1039/c4nr02808b] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
An intramolecular self-enhanced electrochemiluminescent derivative is prepared by grafting polystyrene (PS)-based polymer chains with pendant Ru(ii) luminophore from poly(ethylenimine) (PEI) on the surface of palladium nanocages (PdNCs). In this way, the Ru(ii) luminophore and its co-reactive group (amine groups in PEI) exist in the same polymer molecule, which shortens the electronic transmission distance between them and enhances the luminous stability. Meanwhile, through atom transfer radical polymerization (ATRP), the loading amount of Ru(ii) luminophore is greatly increased. Therefore, the obtained electrochemiluminescent derivative (PdNC-PEI-PSRu) has high luminous efficiency and stability. Furthermore, due to their special nanostructures of porous walls and hollow interiors, PdNCs have great advantages in high specific surface areas and good electrocatalytic ability, which make them act as an excellent immobilized platform for PEI and detection antibody. Based on the sandwiched immunoreactions, a sensitive "signal on" electrochemiluminescence immunosensor is constructed for the detection of carbohydrate antigen 15-3 (CA 15-3). As a result, a wide linear range from 0.01 U mL(-1) to 120 U mL(-1) is acquired with a relatively low detection limit of 0.003 U mL(-1).
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Affiliation(s)
- Haijun Wang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People's Republic of China.
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Inagaki Y, Seyama Y, Hasegawa K, Tang W, Kokudo N. Subcellular localization of KL-6 mucin in intraductal papillary mucinous neoplasm of the pancreas. Drug Discov Ther 2014; 8:173-7. [PMID: 25047009 DOI: 10.5582/ddt.2014.01027] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This study aimed to clarify the expression profile of KL-6 mucin in intraductal papillary mucinous neoplasm (IPMN) and its relation to tumor malignancy. Expression of KL-6 mucin in 38 IPMNs (intraductal papillary mucinous adenoma (IPMA), 24 cases; minimally invasive intraductal papillary mucinous carcinoma (MI-IPMC), 8 cases; invasive carcinoma originating from IPMC (IC-IPMC), 6 cases) and 66 pancreatic ductal adenocarcinomas (PDACs) was evaluated immunohistochemically. IC-IPMCs and MI-IPMCs had positive staining of KL-6 mucin whereas 58% of IPMAs tested negative. Subcellular localization of KL-6 mucin varied among IPMNs whereas all of the PDAC had positive expression in the circumferential membrane and cytoplasm of cancer cells. IC-IPMCs and MI-IPMCs had a higher frequency of circumferential membrane and cytoplasmic localization of KL-6 mucin than did IPMAs. These results suggest that localization of KL-6 mucin could be used to predict the malignancy of IPMN.
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Affiliation(s)
- Yoshinori Inagaki
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, the University of Tokyo
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Abstract
Pleomorphic adenoma is the most common epithelial neoplasm of lacrimal gland. A clear cell myoepithelial carcinoma arising in the background of pleomorphic adenoma is common in the salivary glands but very rare in the lacrimal glands. We report the case of a 27 year old man whose lacrimal gland pleomorphic adenoma recurred several times over a period of four years and ultimately evolved into a clear cell myoepithelial carcinoma ex pleomorphic adenoma.
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Affiliation(s)
- Nikhil R Rabade
- Department of Pathology, Seth GS Medical College and KEM Hospital, Mumbai, Maharashtra, India
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