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Hu H, Wang Q, Tang H, Xiong L, Lin Q. Multi-slice computed tomography characteristics of solitary pulmonary ground-glass nodules: Differences between malignant and benign. Thorac Cancer 2015; 7:80-7. [PMID: 26913083 PMCID: PMC4718137 DOI: 10.1111/1759-7714.12280] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Accepted: 04/08/2015] [Indexed: 02/06/2023] Open
Abstract
Background Ground‐glass nodules (GGNs), which are possible precursors of lung cancer, attract increasing attention. Many studies have attempted to identify the characteristic imaging features of GGNs for their qualitative diagnosis; however, the comprehension of GGNs remains controversial. We performed this study to identify imaging characteristics helpful to the differential diagnosis of solitary GGNs. Methods We retrospectively evaluated 112 solitary GGNs resected from 112 patients, pathologically examined after surgical resection. Imaging features of the GGNs, such as size, shape, a solid component, lobulation, spiculation, vascular convergence sign, pleural tag, and air cavity density, were assessed. Differences between malignant and benign nodules were analyzed using binary logistic regression analysis. Results Of the 112 GGNs, 82 were malignant and 30 were benign. A solid component, vascular convergence sign, and a larger diameter were risk factors for malignancy, with a sensitivity, specificity, and accuracy of 93.9%, 60.0%, and 84.8%, respectively. Lobulation, spiculation, air cavity densities, and pleural tags were also important indicators of malignancy, with positive predictive values of 93.5%, 83.3%, 91.7%, and 87.2%, respectively. Conclusion GGNs with a solid component, vascular convergence sign, and a larger diameter are highly suggestive of malignancy. The possibility of a neoplasm should also be considered in the case of GGNs that show lobulation, spiculation, air cavity densities, or pleural tags. To obtain a comprehensive and accurate analysis of the nodules, three‐dimensional reconstruction is highly recommended.
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Affiliation(s)
- Haiyang Hu
- Department of Thoracic Surgery Shanghai First People's Hospital Shanghai China
| | - Qingguo Wang
- Department of Radiology Shanghai First People's Hospital Shanghai China
| | - Huamei Tang
- Department of Pathology Shanghai First People's Hospital Shanghai China
| | - Liwen Xiong
- Department of Respiration Shanghai Chest Hospital Shanghai China
| | - Qiang Lin
- Department of Thoracic Surgery Shanghai First People's Hospital Shanghai China
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452
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Porat Y, Abraham E, Karnieli O, Nahum S, Woda J, Zylberberg C. Critical elements in the development of cell therapy potency assays for ischemic conditions. Cytotherapy 2015; 17:817-31. [PMID: 25728414 DOI: 10.1016/j.jcyt.2014.08.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 08/22/2014] [Accepted: 08/26/2014] [Indexed: 12/28/2022]
Abstract
A successful potency assay for a cell therapy product (CTP) used in the treatment of ischemic conditions should quantitatively measure relevant biological properties that predict therapeutic activity. This is especially challenging because of numerous degrees of complexity stemming from factors that include a multifactorial complex mechanism of action, cell source, inherent cell characteristics, culture method, administration mode and the in vivo conditions to which the cells are exposed. The expected biological function of a CTP encompasses complex interactions that range from a biochemical, metabolic or immunological activity to structural replacement of damaged tissue or organ. Therefore, the requirements for full characterization of the active substance with respect to biological function could be taxing. Moreover, the specific mechanism of action is often difficult to pinpoint to a specific molecular entity; rather, it is more dependent on the functionality of the cellular components acting in a in a multifactorial fashion. In the case of ischemic conditions, the cell therapy mechanism of action can vary from angiogenesis, vasculogenesis and arteriogenesis that may activate different pathways and clinical outcomes. The CTP cellular attributes with relation to the suggested mechanism of action can be used for the development of quantitative and reproducible analytical potency assays. CTPs selected and released on the basis of such potency assays should have the highest probability of providing meaningful clinical benefit for patients. This White Paper will discuss and give examples for key elements in the development of a potency assay for treatment of ischemic disorders treated by the use of CTPs.
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Affiliation(s)
- Yael Porat
- BioGenCell Ltd, Hematology BGC Stem Cell Research, Sanz Medical Center Laniado Hospital, Netanya, Israel
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453
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Impairment of vascularization of the surface covering epithelium induces ischemia and promotes malignization: a new hypothesis of a possible mechanism of cancer pathogenesis. Clin Transl Oncol 2014; 17:446-53. [PMID: 25408194 PMCID: PMC4452215 DOI: 10.1007/s12094-014-1255-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2014] [Accepted: 11/01/2014] [Indexed: 12/22/2022]
Abstract
PURPOSE To study the peculiarities of vascularization at the stromal-epithelial interface in different types of epithelia and their alterations in precancerous lesions. MATERIALS AND METHODS Peritumoral tissues of 310 patients, tissues of 180 healthy persons and of 50 human embryos and fetuses were used. Traditional histological as well as immunohistochemical methods have been used. RESULTS The study reveals that the occurrence of blood capillaries in surface squamous epithelium is an ordinary event, both in healthy persons and in peritumoral regions of the patients with squamous cell carcinoma. Glandular epithelial coverings, as well as transitional epithelium, do not contain blood vessels. In squamous epithelium, only basal cells are in contact with the membrane and underlying stroma, the cells of the upper layer receiving nutrients through diffusion. Thus, the cells of squamous epithelium are more vulnerable to blood deficiency, since for instance in the pseudo-multilayered respiratory epithelium each cell is attached directly to the basal membrane and has more ample access to the blood supply. Metaplastic squamous epithelium has a markedly reduced vascularization and seems to be more sensitive to carcinogenic stimuli. High-grade dysplastic squamous epithelium and carcinoma in situ do not contain blood vessels. CONCLUSION The process of redistribution of vascular network occurring at the interface of epithelial-stromal frontier plays an important role in maintaining the adequate metabolism of cells including those of epithelial covering. Impairment of this mechanism most probably promotes precancerous alterations.
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454
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Iida M, Banno K, Yanokura M, Nakamura K, Adachi M, Nogami Y, Umene K, Masuda K, Kisu I, Iwata T, Tanaka K, Aoki D. Candidate biomarkers for cervical cancer treatment: Potential for clinical practice (Review). Mol Clin Oncol 2014; 2:647-655. [PMID: 25054026 DOI: 10.3892/mco.2014.324] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 03/05/2014] [Indexed: 12/14/2022] Open
Abstract
Cervical cancer ranks high among the causes of female cancer mortalities and is an important disease in developing and developed countries. Current diagnosis of cervical cancer depends on colposcopy, pathological diagnosis and preoperative diagnosis using methods, including magnetic resonance imaging and computed tomography. Advanced cervical cancer has a poor prognosis. The tumor marker squamous cell carcinoma is conventionally used for screening, but recent studies have revealed the mechanisms of carcinogenesis and the factors associated with a poor prognosis in cervical cancer. These include epigenetic biomarkers, with the methylation level of the checkpoint with forkhead and ring finger gene being potentially useful for predicting the malignancy of cervical cancer and sensitivity to treatment with paclitaxel. The extent of methylation of the Werner DNA helicase gene is also useful for determining sensitivity to an anticancer agent, CPT-11. In addition to epigenetic changes, the expression levels of hypoxia-inducible factor 1α subunit, epidermal growth factor receptor and cyclooxygenase-2 have been reported as possible biomarkers in cervical cancer. Novel prognostic factors, including angiogenic factors, fragile histidine triad, thymidylate synthase, glucose-related protein 58 and mucin antigens, have also been described, and hemoglobin and platelets may also be significant prognostic biomarkers. Utilization of these biomarkers may facilitate personalized treatment and improved outcomes in cervical cancer.
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Affiliation(s)
- Miho Iida
- Department of Obstetrics and Gynecology, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Kouji Banno
- Department of Obstetrics and Gynecology, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Megumi Yanokura
- Department of Obstetrics and Gynecology, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Kanako Nakamura
- Department of Obstetrics and Gynecology, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Masataka Adachi
- Department of Obstetrics and Gynecology, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Yuya Nogami
- Department of Obstetrics and Gynecology, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Kiyoko Umene
- Department of Obstetrics and Gynecology, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Kenta Masuda
- Department of Obstetrics and Gynecology, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Iori Kisu
- Department of Obstetrics and Gynecology, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Takashi Iwata
- Department of Obstetrics and Gynecology, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Kyoko Tanaka
- Department of Obstetrics and Gynecology, School of Medicine, Keio University, Tokyo 160-8582, Japan
| | - Daisuke Aoki
- Department of Obstetrics and Gynecology, School of Medicine, Keio University, Tokyo 160-8582, Japan
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455
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Improved computer-assisted analysis of the global lymphatic network in human cervical tissues. Mod Pathol 2014; 27:887-98. [PMID: 24309324 DOI: 10.1038/modpathol.2013.195] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 09/20/2013] [Accepted: 09/23/2013] [Indexed: 11/08/2022]
Abstract
Lymphatic dissemination is a key event in cervical cancer progression and related tumor lymphatic markers are viewed as promising prognostic factor of nodal extension. However, validating such parameters requires an objective characterization of the lymphatic vasculature. Here, we performed a global analysis of the lymphatic network using a new computerized method applied on whole uterine cervical digital images. Sixty-eight cases of cervical neoplasia (12 CIN3, 10 FIGO stage 1A and 46 stage IB1) and 10 cases of normal cervical tissue were reacted with antibodies raised against D2-40, D2-40/p16 and D2-40/Ki67. Immunostained structures were automatically detected on whole slides. The lymphatic vessel density (D2-40), proliferating lymphatic vessel density (D2-40/ki67) and spatial lymphatic distribution in respect to the adjacent epithelium were assessed from normal cervix to early cervical cancer and correlated with lymphovascular space invasion and lymph node status. Prominent lymphatic vessel density and proliferating lymphatic vessel density are detected under the transformation zone of benign cervix and no further increase is noted during cancer progression. Notably, a shift of lymphatic vessel distribution toward the neoplastic edges is detected. In IB1 cervical cancer, although intra- and peritumoral lymphatic vessel density are neither correlated with lymphovascular space invasion nor with lymph node metastasis, a specific spatial distribution with more lymphatic vessels in the vicinity of tumor edges is predictive of lymphatic dissemination. Herein, we provide a new computerized method suitable for an innovative detailed analysis of the lymphatic network. We show that the transformation zone of the benign cervix acts as a baseline lymphangiogenic niche before the initiation of neoplastic process. During cancer progression, this specific microenvironment is maintained with lymphatic vessels even in closer vicinity to tumor cells.
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456
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Xing Y, Li Z, Jiang S, Xiang W, Sun X. Analysis of pre-invasive lung adenocarcinoma lesions on thin-section computerized tomography. CLINICAL RESPIRATORY JOURNAL 2014; 9:289-96. [PMID: 24720643 DOI: 10.1111/crj.12142] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 02/28/2014] [Accepted: 04/04/2014] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Recent studies have revealed a potential relationship between the presence of ground glass opacity (GGO) on regular computerized tomography (CT) and adenocarcinomas. OBJECTIVES To investigate features of pre-invasive lung adenocarcinoma lesions on thin-section CT. METHODS We evaluated 59 cases of atypical adenomatous hyperplasia (AAH) and 35 cases of adenoma in situ (AIS) confirmed by histopathology. Comparison of thin-section CT features, such as size, shape, margin, internal characteristics, and adjacent structures of pre-invasive lesions were analyzed. Lesions were further classified to pure ground glass opacity (pGGO) and mixed ground glass opacity (mGGO). Differences were analyzed using Chi-square or Fisher tests. RESULTS There were significant differences in lobulation, spiculation, and bubble lucency between pGGO and mGGO (P < 0.05), while no differences in air bronchogram, pleural indentation, or vascular morphological changes were identified (P > 0.05). In the group of pGGO, AAH and AIS lesions did not differ significantly in size (P > 0.05), while significant differences were found with respect to lobulation, spiculation, pleural indentation, and vascular morphological changes (P < 0.05). In the group of mGGO, AAH and AIS lesions were significantly different with respect to size (P < 0.05), while no differences were found in lobulation, spiculation, bubble lucency, air bronchogram, or pleural indentation (P > 0.05). Only vascular morphological changes were significantly different between AAH and AIS lesions (P < 0.05). CONCLUSION The features of thin-slice CT of AAH and AIS reflected the corresponding morphological changes from AAH progressing to AIS or adenocarcinoma.
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Affiliation(s)
- Yanfen Xing
- Department of Radiology, Traditional Chinese Medicine Hospital of Laiwu, Laiwu, Shandong, China
| | - Zhen Li
- Department of Ultrasound, Maternal and Child Health Care Hospital of Laiwu, Laiwu, Shandong, China
| | - Sen Jiang
- Department of Radiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wenjing Xiang
- Department of Radiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiwen Sun
- Department of Radiology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
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457
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Dias DS, Bueloni-Dias FN, Dias R, Nahás-Neto J, Petri Nahás EA, Leite NJ, Custódio Domingues MA, Bueno Angela SP, Padovani CR. Usefulness of Clinical, Ultrasonographic, Hysteroscopic, and Immunohistochemical Parameters in Differentiating Endometrial Polyps From Endometrial Cancer. J Minim Invasive Gynecol 2014; 21:296-302. [DOI: 10.1016/j.jmig.2013.09.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 09/25/2013] [Accepted: 09/27/2013] [Indexed: 10/26/2022]
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458
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Ribatti D, Crivellato E. “Sprouting angiogenesis”, a reappraisal. Dev Biol 2012; 372:157-65. [DOI: 10.1016/j.ydbio.2012.09.018] [Citation(s) in RCA: 209] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Revised: 09/22/2012] [Accepted: 09/24/2012] [Indexed: 01/15/2023]
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459
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Cimpean AM, Mazuru V, Cernii A, Ceausu R, Saptefrati L, Cebanu A, Fit AM, Raica M. Detection of early lymphangiogenesis by lymphatic microvascular density and endothelial proliferation status in preneoplastic and neoplastic lesions of the uterine cervix. Pathol Int 2011; 61:395-400. [DOI: 10.1111/j.1440-1827.2011.02673.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
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