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https://www.readbyqxmd.com/read/30511904/the-reparative-effects-of-human-adipose-derived-mesenchymal-stem-cells-in-the-chemotherapy-damaged-thymus
#1
Ying Zhan, Lihua Wang, Guangyang Liu, Xiaohui Zhang, Jingci Yang, Yuxia Pan, Jianmin Luo
Hematological patients who accept chemotherapy always develop secondary tumor or even die of severe infections. As an important central lymphoid organ, the thymus is frequently damaged during chemotherapy. Previous studies showed that the mesenchymal stem cells (MSCs) can promote the proliferation and repair of epithelial cells in thymus. The purpose of our study is to investigate the reparative effects of human adipose-derived mesenchymal stem cells (hADMSCs) for chemotherapy treated damaged thymus. 80 mice were randomly divided into four groups: normal group, model control group, hADMSCs untreated group and hADMSCs treated group...
December 4, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/30510788/the-european-society-of-thoracic-surgeons-ests-thymic-database
#2
REVIEW
Enrico Ruffini, Pierre-Emmanuel Falcoz, Francesco Guerrera, Pier Luigi Filosso, Pascal Thomas, Nuria Novoa, Bernhard Moser, Danilo Pellicano, Stefano Passani
The European Society of Thoracic Surgeons (ESTS) thymic database is a satellite database of the ESTS registry collecting patients with thymic tumors (thymomas, thymic carcinomas and neuroendocrine thymic tumors) among the ESTS Institutions. The database is free of charge for any ESTS member, easily accessible to any ESTS institution, web-based, prospective, periodically maintained and updated. It may serve as an institutional database for the storage of data about patients with thymic tumors at no cost for each participating institution...
October 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/30505679/the-clinical-benefits-of-immune-checkpoint-inhibitor-for-thymic-carcinomas-%C3%A2-experience-of-single-public-hospital-in-japan%C3%A2
#3
Naohiro Uchida, Kohei Fujita, Misato Okamura, Koichi Nakatani, Tadashi Mio
Thymic carcinomas is rare and highly aggressive carcinoma. Most patients with them are diagnosed as being at surgically unresectable stages due to it. There are several reports which showed the effect of chemotherapy, however, it is controversial. Recently, immune checkpoint inhibitors have changed conventional chemotherapy due to their effect against various types of cancers. We administered nivolumab, anti-Programmed Cell Death (PD)-1 antibody, to four patients with unresectable thymic carcinomas who had previously undergone conventional chemotherapy...
2019: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/30505490/volumetric-analysis-of-the-thymic-epithelial-tumors-correlation-of-tumor-volume-with-the-who-classification-and-masaoka-staging
#4
Yukihisa Sato, Masahiro Yanagawa, Akinori Hata, Yukihiro Enchi, Noriko Kikuchi, Osamu Honda, Katsuyuki Nakanishi, Noriyuki Tomiyama
Background: The purpose of our study was to investigate the correlation between tumor volume (TV) and each subtype of thymic epithelial tumors (TETs) based on the World Health Organization (WHO) classification and Masaoka staging. Methods: Sixty-one consecutive patients (45 thymomas and 16 thymic carcinomas) were studied. All were classified according to Masaoka staging: 31 non-invasive TETs (stage I) and 30 invasive TETs (8 stage II, 11 stage III, 3 stage IVa, and 8 stage IVb)...
October 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/30502716/carcinoid-tumors-of-the-thymus-and-cushing-s-syndrome-clinicopathologic-features-and-current-best-evidence-regarding-the-cell-of-origin-of-these-unusual-neoplasms
#5
Ann E Walts, Joseph Frye, David M Engman, Alberto M Marchevsky
It is uncertain whether thymic neuroendocrine tumors (NET) associated with Cushing's syndrome (CS) produce corticotropin-releasing hormone (CRH) and adrenocorticotropin hormone (ACTH) and whether the thymus contains ACTH and/or CRH cells that could originate NET. The clinicopathologic features of 5 typical (TC) and 6 atypical carcinoids (ATC), 10 additional non-neoplastic thymi, 6 adrenal glands with bilateral nodular hyperplasia and 8 adrenal cortical adenomas were reviewed. Representative slides were immunostained for ACTH and CRH...
November 22, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/30499814/programmed-death-ligand-1-pd-l1-expression-in-thymic-epithelial-tumors
#6
Judit Bedekovics, Livia Beke, Attila Mokanszki, Szabolcs Szilagyi, Gabor Mehes
Thymic epithelial tumors (TETs) are uncommon neoplasms of the mediastinum. The gold standard treatment is complete surgical resection which can be followed by radio/chemotherapy in selected cases. Targeted tyrosine kinase inhibition can be considered in only a limited number of aggressive or metastatic tumors as EGFR, BRAF, or c-kit mutations are rare. However, previous studies have demonstrated the efficacy of immune checkpoint inhibitors in epithelial neoplasias, such as in programmed cell death ligand 1 (PD-L1) expressing nonsmall cell lung carcinoma...
November 28, 2018: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/30486460/role-of-endogenous-glucocorticoids-in-cancer-in-the-elderly
#7
REVIEW
Emira Ayroldi, Lorenza Cannarile, Sabrina Adorisio, Domenico V Delfino, Carlo Riccardi
Although not a disease itself, aging represents a risk factor for many aging-related illnesses, including cancer. Numerous causes underlie the increased incidence of malignancies in the elderly, for example, genomic instability and epigenetic alterations that occur at cellular level, which also involve the immune cells. The progressive decline of the immune system functions that occurs in aging defines immunosenescence, and includes both innate and adaptive immunity; the latter undergoes major alterations. Aging and chronic stress share the abnormal hypothalamic⁻pituitary⁻adrenal axis activation, where altered peripheral glucocorticoids (GC) levels and chronic stress have been associated with accelerated cellular aging, premature immunosenescence, and aging-related diseases...
November 27, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/30483099/successful-use-of-pembrolizumab-to-treat-refractory-thymic-carcinoma-with-high-pd-l1-expression
#8
Takuma Isshiki, Kazutoshi Isobe, Naobumi Tochigi, Motoko Sunakawa, Yasuhiko Nakamura, Kazutoshi Shibuya, Susumu Sakamoto, Yujiro Takai, Sakae Homma
Thymic carcinoma is a relatively rare and aggressive thymic epithelial tumor. Herein, we report successful treatment of thymic carcinoma with pembrolizumab. A 68-year-old woman was admitted to our hospital for evaluation of chest pain. Chest computed tomography showed a mass in the anterior mediastinum and lymphadenopathy in the left cervical lymph node. Analysis of biopsy specimens detected squamous cell carcinoma in the left cervical lymph node, and immunohistochemical analysis showed 100% expression of programmed death-ligand 1 (PD-L1)...
September 2018: Case Reports in Oncology
https://www.readbyqxmd.com/read/30467988/thymic-inflammatory-pseudotumor-with-multilocular-thymic-cyst-caused-by-immunoglobulin-g4-related-disease
#9
Risa Oda, Katsuhiro Okuda, Takayuki Murase, Takuya Watanabe, Tadashi Sakane, Tsutomu Tatematsu, Keisuke Yokota, Hiroshi Haneda, Ryoichi Nakanishi
A 44-year-old man was referred to our hospital after an anterior mediastinal tumor was noted on computed tomography during follow-up observation after left testicular seminoma resection. Chest computed tomography revealed an enhanced mass measuring 33 x 16 x 15 mm at the anterior mediastinum. Chest magnetic resonance imaging revealed high signal intensity on T2-weighted imaging, and F18  fluorodeoxyglucose-positron emission tomography showed a maximum standardized uptake of 12.45. Laboratory tests revealed no elevated tumor markers, except for mildly elevated interleukin-2...
November 23, 2018: Thoracic Cancer
https://www.readbyqxmd.com/read/30461637/metastatic-thymic-carcinoid-responds-to-chemoradiation-and-octreotide-a-case-report
#10
Zhu Mei, He Wang, Shengnan Ren, Juan Wei, Yanhong Gu
RATIONALE: Thymic carcinoids are a rare type of malignant neuroendocrine tumors which have a poor prognosis due to their distant metastasis, invasive behaviour, and postoperative recurrence. Surgical resection is still the fundamental mode for treating thymic carcinoids. Here, we report the rapid shrinkage of an atypical thymic carcinoid with multiple metastases following chemoradiation plus octreotide as a first-line therapy PATIENT CONCERNS:: A 39-year-old Chinese man presented with chest tightness, dyspnea with a history of lumbago and untreated malignant thymoma...
November 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/30458821/intra-thymic-bronchogenic-cyst-an-extremely-rare-tumor-of-anterior-mediastinum-in-adults
#11
Shadi Hamouri, Muad Hatamleh, Jamal Alaydi, Hani Alhadidi, Mazen Alomari, Najla Aldaoud, Bashar Darayseh
BACKGROUND: Intra-thymic bronchogenic cysts are a rare entity but should be considered in the differential of all non-invasive thymic masses. CASE PRESENTATION: We describe a 50-year-old patient who was found to have an incidental thymic mass on computer tomography of the chest. Non-invasive thymoma was suspected and a thoracoscopic thymectomy was performed. Final pathology revealed a bronchogenic cyst. CONCLUSION: Intra-thymic bronchogenic cysts are extremely rare tumors of the anterior mediastinum...
November 20, 2018: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/30454002/assessment-of-the-prognostic-role-of-neutrophil-to-lymphocyte-ratio-following-complete-resection-of-thymoma
#12
Piergiorgio Muriana, Angelo Carretta, Paola Ciriaco, Alessandro Bandiera, Giampiero Negri
BACKGROUND: The introduction of the new TNM staging system for thymic epithelial malignancies produced a significant increase in the proportion of patients with stage I disease. The identification of new prognostic factors could help to select patients for adjuvant therapies based on their risk of recurrence. Neutrophil-to-lymphocyte ratio (NLR) has recently gained popularity as reliable prognostic biomarker in many different solid tumors. The aim of this study is to assess the utility of NLR evaluation as a prognostic marker in patients with surgically-treated thymoma...
November 19, 2018: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/30449824/l-type-amino-acid-transporter-1-immunoreactivity-as-a-possible-diagnostic-and-prognostic-marker-of-thymic-carcinoma
#13
Sumiko Maeda, Yoshimasa Nakazato, Keitaro Hayashi, Morimichi Nishihira, Takashi Inoue, Osamu Araki, Yoko Karube, Satoru Kobayashi, Masayuki Chida
L-type amino acid transporter 1 (LAT1) functions to transport large neutral amino acids, such as leucine, isoleucine, valine, phenylalanine, tyrosine, tryptophan, methionine, and histidine. These amino acids are essential for cell growth and proliferation. Many studies have demonstrated LAT1 expression in various types of cancer, and its high expression level was associated with poor prognosis. However, the significance of LAT1 expression in thymic epithelial tumors is controversial. We conducted this retrospective study to investigate the LAT1 immunoreactivity in thymic epithelial tumors and its impact on prognosis...
2018: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/30446840/resected-thymic-large-cell-neuroendocrine-carcinoma-report-of-a-case
#14
Hiromitsu Domen, Yasuhiro Hida, Masaaki Sato, Haruka Takahashi, Tatsuru Ishikawa, Yosuke Shionoya, Midori Hashimoto, Kaoru Nishiyama, Yuma Aoki, Kazuho Inoko, Syotaro Furukawa, Kazuomi Ichinokawa, Hidehisa Yamada
BACKGROUND: Thymic large cell neuroendocrine carcinoma (LCNEC) is extremely rare. The detailed clinical features of thymic LNCECs remain unknown. CASE PRESENTATION: A 90-year-old man with a history of diabetes mellitus, chronic renal failure, and an abdominal aortic aneurysm underwent computed tomography for follow-up, which showed an anterior mediastinal tumor, measuring 31 mm × 28 mm in diameter. Magnetic resonance imaging showed an iso-intensity mass on T1-weighted images and high intensity on T2-weighted images...
November 16, 2018: Surgical Case Reports
https://www.readbyqxmd.com/read/30429036/different-pattern-of-pd-l1-ido-and-foxp3-tregs-expression-with-survival-in-thymoma-and-thymic-carcinoma
#15
Yu-Feng Wei, Chang-Yao Chu, Chao-Chun Chang, Sheng-Hsiang Lin, Wu-Chou Su, Yau-Lin Tseng, Chien-Chung Lin, Yi-Ting Yen
OBJECTIVES: The expression of immune checkpoint ligand PD-L1 has been reported in various tumors. The expression of IDO and FOXP3 Tregs are considered to be associated with tumor-induced tolerance and poor outcome. Their prognostic role in surgically treated thymoma and thymic carcinoma, however, has not been investigated. MATERIALS AND METHODS: Tissue microarray (TMA) blocks comprised of 100 surgically treated thymomas and 69 surgically treated thymic carcinomas were conducted...
November 2018: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/30411854/efficacy-and-toxicities-of-gemcitabine-and-cisplatin-combined-with-endostar-in-advanced-thymoma-and-thymic-carcinoma
#16
Yang Wang, Jun Nie, Ling Dai, Weiheng Hu, Xiaoling Chen, Jindi Han, Xiangjuan Ma, Guangming Tian, Sen Han, Jieran Long, Ziran Zhang, Jian Fang
BACKGROUND: Thymoma and thymic carcinoma are rare thymic epithelial tumors. We investigated the efficacy of first-line gemcitabine and cisplatin (GP) chemotherapy versus gemcitabine and cisplatin chemotherapy combined with the anti-angiogenic drug endostar (GP + E) in advanced thymoma and thymic carcinoma. METHODS: The records of 45 patients with invasive metastatic thymomas or thymic carcinomas treated with GP as first-line therapy between August 2008 and July 2017 at the Department of Respiratory Medicine, Peking University Cancer Hospital and Institute were retrospectively reviewed...
November 9, 2018: Thoracic Cancer
https://www.readbyqxmd.com/read/30411218/first-in-human-phase-i-study-of-the-microtubule-inhibitor-plocabulin-in-patients-with-advanced-solid-tumors
#17
Elena Elez, Carlos Gomez-Roca, Arturo Soto Matos-Pita, Guillem Argiles, Thibaud Valentin, Cinthya Coronado, Jorge Iglesias, Teresa Macarulla, Sarah Betrian, Salvador Fudio, Katrin Zaragoza, Josep Tabernero, Jean-Pierre Delord
Background Plocabulin (PM060184) is a novel marine-derived microtubule inhibitor that acts as an antitumor agent. This first-in-human study evaluated dose-limiting toxicities (DLT) to define the maximum tolerated dose (MTD) and phase II recommended dose (RD) of plocabulin given as a 10-min infusion on Day (D) 1, D8 and D15 every four weeks. Patients and methods Forty-four patients with advanced solid tumors received plocabulin following an accelerated titration design. Results Plocabulin was escalated from 1...
November 9, 2018: Investigational New Drugs
https://www.readbyqxmd.com/read/30410062/bi-directional-signaling-by-membrane-bound-kitl-induces-proliferation-and-coordinates-thymic-endothelial-cell-and-thymocyte-expansion
#18
Mario Buono, Marie-Laëtitia Thézénas, Alessandro Ceroni, Roman Fischer, Claus Nerlov
The ligand for the c-Kit receptor, KitL, exists as a membrane-associated (mKitL) and a soluble form (sKitL). KitL functions outside c-Kit activation have not been identified. We show that co-culture of c-Kit- and mKitL-expressing NIH3T3 cells results in signaling through mKitL: c-Kit-bound mKitL recruits calcium-modulating cyclophilin ligand (CAML) to selectively activate Akt, leading to CREB phosphorylation, mTOR pathway activation, and increased cell proliferation. Activation of mKitL in thymic vascular endothelial cells (VECs) induces mKitL- and Akt-dependent proliferation, and genetic ablation of mKitL in thymic VECs blocks their c-Kit responsiveness and proliferation during neonatal thymic expansion...
November 8, 2018: Nature Communications
https://www.readbyqxmd.com/read/30406399/metastatic-spread-from-abdominal-tumor-cells-to-parathymic-lymph-nodes
#19
Gábor Király, Zoltán Hargitai, Ilona Kovács, Gábor Szemán-Nagy, István Juhász, Gáspár Bánfalvi
Metastatic studies on rats showed that after subrenal implantation of tumor cells under the capsule of the kidney or subhepatic implantation under Glisson's capsule of the liver generated primary tumors in these organs. It was assumed that tumor cells that escaped through the disrupted peripheral blood vessels of primary tumors entered the peritoneal cavity, crossed the diaphragm, and appeared in the thoracal, primarily in the parathymic lymph nodes. This explanation did not answer the question whether distant lymph nodes were reached via the blood stream from the primary tumor or through the thoracal lymphatic vessels...
November 7, 2018: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/30391286/cytotoxic-action-of-acetate-on-tumor-cells-of-thymic-origin-role-of-mct-1-ph-homeostasis-and-altered-cell-survival-regulation
#20
Shrish Kumar Pandey, Saveg Yadav, Yugal Goel, Sukh Mahendra Singh
Neoplastic cells display altered biosynthetic and bioenergetic machinery to support cell survival. Therefore, cancer cells optimally utilize all available fuel resources to pump their highly upregulated metabolic pathways. While glucose is the main carbon source, transformed cells also utilize other molecules, which can be utilized in metabolic pathways, designated as alternative fuels. Acetate is one of such alternative metabolic fuels, which is mainly consumed in carbohydrate and lipid metabolism. However, studies demonstrate the contradictory effects of acetate on tumor cell survival...
November 1, 2018: Biochimie
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