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Liposarcoma treatment

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https://www.readbyqxmd.com/read/29234568/long-term-quality-of-life-of-retroperitoneal-sarcoma-patients-treated-with-pre-operative-radiotherapy-and-surgery
#1
Philip Wong, Zahra Kassam, Amanda N Springer, Rebecca Gladdy, Peter Chung, Jolie Ringash, Charles Catton
PURPOSE: Retroperitoneal sarcomas (RPS) are connective tissue cancers that are often large and anatomically in close proximity to critical and radiation-sensitive normal structures and organs within the abdomen and pelvis. The management of RPS may include preoperative radiotherapy (RT) and surgery. We aimed to examine how treatment-related toxicities affect patient quality of life (QOL).  Methods and materials: Within two prospective cohort studies, 48 RPS patients who were treated with preoperative RT from 1998-2012 were recruited and assessed for QOL (EORTC-QLQ-C30) and to determine toxicities potentially related to RT and surgery (graded using CTCAE V...
October 11, 2017: Curēus
https://www.readbyqxmd.com/read/29220294/clinical-and-molecular-spectrum-of-liposarcoma
#2
Alex Thomas John Lee, Khin Thway, Paul H Huang, Robin Lewis Jones
Liposarcomas are rare malignant tumors of adipocytic differentiation. The classification of liposarcomas into four principal subtypes reflects the distinct clinical behavior, treatment sensitivity, and underlying biology encompassed by these diseases. Increasingly, clinical management decisions and the development of investigational therapeutics are informed by an improved understanding of subtype-specific molecular pathology. Well-differentiated liposarcoma is the most common subtype and is associated with indolent behavior, local recurrence, and insensitivity to radiotherapy and chemotherapy...
December 8, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29216884/intensity-modulated-radiation-therapy-and-surgery-for-management-of-retroperitoneal-sarcomas-a-single-institution-experience
#3
Pippa F Cosper, Jeffrey Olsen, Todd DeWees, Brian A Van Tine, William Hawkins, Jeff Michalski, Imran Zoberi
BACKGROUND: Peri-operative radiation of retroperitoneal sarcomas (RPS) is an important component of multidisciplinary treatment. All retrospective series thus far included patients treated with older radiation therapy (RT) techniques including 2D and 3DRT. Intensity modulated radiation therapy (IMRT) allows for selective dose escalation while sparing adjacent organs. We therefore report the first series of patients with RPS treated solely with IMRT, surgery and chemotherapy. We hypothesized that IMRT would permit safe dose escalation and superior rates of local control (LC) in this high-risk patient population...
December 8, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/29203756/12-years-of-fighting-liposarcoma-a-case-report
#4
Mykola Kononenko, Ihor Vynnychenko, Yuliia Moskalenko, Oleksandr Vynnychenko
The proportion of liposarcoma in the structure of cancer incidence is from 10 to 35% of all mesenchymal tumors. This clinical observation describes an 12-year struggle with myxoid liposarcoma of the left upper arm, during which 17 surgeries were performed due to local recurrences, 17 radiation therapy courses and 5 chemotherapy courses were conducted. Clinical observation shows the whole complexity of myxoid liposarcoma treatment. The effectiveness of therapeutic management is determined by persistent surgery, and also by the lack of expression of Pgp, glutathione-S-transferase, metallothionein and mutant p53 in tumor structure...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29197031/preclinical-evaluation-of-the-aurora-kinase-inhibitors-amg-900-azd1152-hqpa-and-mk-5108-on-sw-872-and-93t449-human-liposarcoma-cells
#5
Sandhya Noronha, Lauren A C Alt, Taylor E Scimeca, Omran Zarou, Justyna Obrzut, Brian Zanotti, Elizabeth A Hayward, Akhil Pillai, Shubha Mathur, Joseph Rojas, Ribhi Salamah, Nalini Chandar, Michael J Fay
Liposarcoma is a malignant soft tissue tumor that originates from adipose tissue and is one of the most frequently diagnosed soft tissue sarcomas in humans. There is great interest in identifying novel chemotherapeutic options for treating liposarcoma based upon molecular alterations in the cancer cells. The Aurora kinases have been identified as promising chemotherapeutic targets based on their altered expression in many human cancers and cellular roles in mitosis and cytokinesis. In this study, we investigated the effects of an Aurora kinase A inhibitor (MK-5108), an Aurora kinase B inhibitor (AZD1152-HQPA), and a pan-Aurora kinase inhibitor (AMG 900) on undifferentiated SW-872 and well-differentiated 93T449 human liposarcoma cells...
December 1, 2017: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/29190494/fus-chop-promotes-invasion-in-myxoid-liposarcoma-through-a-src-fak-rho-rock-dependent-pathway
#6
Juan Tornin, Francisco Hermida-Prado, Ranjit Singh Padda, M Victoria Gonzalez, Carlos Alvarez-Fernandez, Veronica Rey, Lucia Martinez-Cruzado, Oscar Estupiñan, Sofia T Menendez, Lucia Fernandez-Nevado, Aurora Astudillo, Juan P Rodrigo, Fabrice Lucien, Yohan Kim, Hon S Leong, Juana Maria Garcia-Pedrero, Rene Rodriguez
Deregulated SRC/FAK signaling leads to enhanced migration and invasion in many types of tumors. In myxoid and round cell liposarcoma (MRCLS), an adipocytic tumor characterized by the expression of the fusion oncogene FUS-CHOP, SRC have been found as one of the most activated kinases. Here we used a cell-of-origin model of MRCLS and an MRCLS cell line to thoroughly characterize the mechanisms of cell invasion induced by FUS-CHOP using in vitro (3D spheroid invasion assays) and in vivo (chicken chorioallantoic membrane model) approaches...
November 27, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29189868/-breast-osteosarcoma-originating-in-a-phyllodes-tumor-report-of-one-case
#7
Tereza Nieto-Coronel, Jessica Elizabeth Salazar-Campos, David Cantú de León, Raúl Díaz-Molina, Rafael Vázquez-Romo, Enrique Bargalló-Rocha
Phyllodes tumors account for less than 1% of tumors of the mammary gland, have both epithelial and stromal components and are classified as benign, borderline and malignant. The malignant tumors are highly heterogeneous: they can differentiate to liposarcomas, fibrosarcomas, rhabdomyosarcomas, chondrosarcomas or osteosarcomas. The differentiation to osteosarcoma is extremely rare, constitutes 1.3% of cases and is very aggressive. The standard treatment of these tumors is surgical. The role of radiotherapy and chemotherapy is not clear...
August 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/29184870/a-retroperitoneal-dedifferentiated-liposarcoma-mimicking-an-ovarian-tumor
#8
Hyojin Kim, Taewon Jeong, Yeongho Lee, Gyeonga Kim, Sanggi Hong, Sukyung Beck, Jeongbeom Mun, Kyongjin Kim, Myeongjin Ju
A 74-year-old postmenopausal woman visited our gynecology clinic complaining of a palpable abdominal mass. Physical and radiological evaluation indicated that the mass exhibited features of a left ovarian neoplasm showing heterogeneous enhancement. Surgical resection was performed to confirm this suspicion. During surgery, a mass was observed only in the left ovary with no invasive growth, but adhesions to the surrounding peritoneum were seen. Given the patient's age, large mass size, and accompanying uterine myoma and right ovarian cyst, total abdominal hysterectomy with bilateral salpingo-oophorectomy was performed...
November 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/29184799/liposarcoma-in-the-spermatic-cord-presenting-as-an-inguinal-swelling
#9
Maria Feldborg Bruun Andersen, Mikkel Fode, Anette Pedersen Pilt, Nessn Htum Majeed Azawi
Liposarcoma in the spermatic cord is a rare condition with an incidence of 1 per 2.5 million. The condition can present as paratesticular pain and a quick diagnosis is important in order to ensure proper treatment and to improve the prognosis. We describe a case of a 69-year-old man who suffered from long-lasting swelling in the inguinal area and experienced increasing pain through a period of 2 weeks. Due to increasing pain and fast growing swelling, an exploration of the inguinal area was performed and peroperatively a tumour in the spermatic cord was found...
October 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/29176397/a-case-of-heavily-pretreated-metastatic-cardiac-angiosarcoma-treated-successfully-using-eribulin
#10
Chiaki Inagaki, Tatsunori Shimoi, Hitomi Okuma, Akiko Kitano, Akihiko Shimomura, Emi Noguchi, Makoto Kodaira, Mayu Yunokawa, Kan Yonemori, Chikako Shimizu, Akihiko Yoshida, Yasuhiro Fujiwara, Kenji Tamura
Eribulin mesylate (eribulin) is a nontaxane microtubule inhibitor approved in Japan for treating soft tissue sarcoma irrespective of histological subtypes. Thus, our department routinely uses eribulin to treat any histological subtype of sarcoma for patients who have experienced disease progression during standard therapy. However, evidence on the efficacy of eribulin in treating sarcomas that are neither liposarcoma nor leiomyosarcoma is limited. Recently, we encountered a case of a heavily pretreated cardiac angiosarcoma that responded well to eribulin treatment...
November 23, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/29142149/liposarcoma-of-the-spermatic-cord-in-a-toy-poodle
#11
Daji Noh, Wooson Choi, Woochan Son, Manhee Lee, Seungchun Park, Kija Lee
Liposarcoma of the spermatic cord is extremely rare in dogs and humans. This report describes the clinical signs, typical diagnostic imaging including ultrasound and computed tomography, and treatment of a liposarcoma of the spermatic cord of a Toy Poodle confirmed by histological examination after a surgical procedure. This case highlights the importance of preoperative diagnostic imaging and histopathological examination in dogs with an inguinal or scrotal mass.
November 14, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29139652/liposarcoma-of-the-spermatic-cord-%C3%A2-a-rare-pathological-entity
#12
Nikola Radović, Arianna Bizatzki, Rajka Turner
Liposarcoma of the spermatic cord is a very rare neoplasm with fewer than 200 cases recorded in world literature. This report describes a case of liposarcoma of the spermatic cord which developed after radical prostatectomy and salvage radiotherapy for prostate cancer treatment. Four years following surgical treatment of the primary neoplasm and one year following radiotherapy, the 67 –year –old patient was referred to the urology clinic for the emergence of a mass in the right hemiscrotum region. Ultrasonography revealed a homogenous isodense mass measuring 4...
March 2017: Collegium Antropologicum
https://www.readbyqxmd.com/read/29132397/kinase-profiling-of-liposarcomas-using-rnai-and-drug-screening-assays-identified-druggable-targets
#13
Deepika Kanojia, Manoj Garg, Jacqueline Martinez, Anand M T, Samuel B Luty, Ngan B Doan, Jonathan W Said, Charles Forscher, Jeffrey W Tyner, H Phillip Koeffler
BACKGROUND: Liposarcoma, the most common soft tissue tumor, is understudied cancer, and limited progress has been made in the treatment of metastatic disease. The Achilles heel of cancer often is their kinases that are excellent therapeutic targets. However, very limited knowledge exists of therapeutic critical kinase targets in liposarcoma that could be potentially used in disease management. METHODS: Large RNAi and small-molecule tyrosine kinase inhibitor screens were performed against the proliferative capacity of liposarcoma cell lines of different subtypes...
November 13, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/29127917/a-giant-mediastinal-liposarcoma-weighing-3500g-resected-with-clam-shell-approach-a-case-report-with-review-of-literature
#14
Yasoo Sugiura, Toshinori Hashizume, Hiroyuki Fujimoto, Etsuo Nemoto
INTRODUCTION: Liposarcoma is rare in the mediastinum and is less than 1% of all mediastinal tumors. In the present report, we demonstrated our case and summarized the principal treatment of the mediastinal liposarcoma with literature review. PRESENTATION OF CASE: A 50-year-old man presented at our hospital with complain of dyspnea. Chest radiography showed remarkable cardiomegaly. Computed tomography revealed an anterior mediastinal tumor from the level of the cephalic vein to the diaphragm of bilateral thoracic cavity with fat component...
November 7, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29069637/redox-active-metals-and-h2o2-mediate-the-increased-efficacy-of-pharmacological-ascorbate-in-combination-with-gemcitabine-or-radiation-in-pre-clinical-sarcoma-models
#15
Joshua D Schoenfeld, Zita A Sibenaller, Kranti A Mapuskar, Megan D Bradley, Brett A Wagner, Garry R Buettner, Varun Monga, Mohammed Milhem, Douglas R Spitz, Bryan G Allen
Soft tissue sarcomas are a histologically heterogeneous group of rare mesenchymal cancers for which treatment options leading to increased overall survival have not improved in over two decades. The current study shows that pharmacological ascorbate (systemic high dose vitamin C achieving ≥ 20mM plasma levels) is a potentially efficacious and easily integrable addition to current standard of care treatment strategies in preclinical models of fibrosarcoma and liposarcoma both in vitro and in vivo. Furthermore, enhanced ascorbate-mediated toxicity and DNA damage in these sarcoma models were found to be dependent upon H2O2 and intracellular labile iron...
September 28, 2017: Redox Biology
https://www.readbyqxmd.com/read/29061812/tumor-suppression-efficacy-of-heat-shock-protein-90-inhibitor-17aag-in-a-liposarcoma-mouse-model
#16
Seunghoon Nam, Hyungjoon Kim, Doopyo Hong, Jae Berm Park, Sung Joo Kim
BACKGROUND/AIM: Heat shock protein 90 (HSP90) inhibitors have recently been tested as anticancer drugs in a variety of carcinomas. Yet, there exist only few reports about HSP90 inhibitor and its thepeutic effect on liposarcoma. The therapeutic effects of HSP90 inhibitors have been mainly observed in oncogenic and tumor angiogenic signaling cascades by observing tumor growth. MATERIALS AND METHODS: We used the the LPS 246 liposarcoma cell line and GS-076 PDC (patient-derived cell lines)...
November 2017: Anticancer Research
https://www.readbyqxmd.com/read/29031176/a-case-of-dedifferentiated-liposarcoma-of-the-heart-and-stomach
#17
Yoichi Hisata, Yuichi Tasaki, Satoshi Kozaki, Takafumi Yamada
INTRODUCTION: Liposarcoma of the heart and stomach is rare. PRESENTAION OF CASE: We report a case of liposarcoma in both organs with dedifferentiated histology. A patient was referred to our hospital with anorexia and weight loss. Upper gastrointestinal tract endoscopy revealed 5-10-mm elevated lesions, and echocardiography and computed tomography showed tumorous lesions in the left atrium. Tumor resection and mitral valve replacement were performed, and biopsy was performed for the gastric tumor...
October 6, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29023299/reconstruction-of-liposarcoma-resection-defect-with-a-made-to-measure-polyethylene-prosthesis-using-three-dimensional-digital-technology
#18
Josué Hernando, David Geijo, Ignacio Osoitz Leizaola-Cardesa, Antonio Aguilar-Salvatierra, María Carmen Gómez, Cristina Erce, Javier Martín, Gerardo Gómez-Moreno
BACKGROUND: Liposarcoma is considered one of the most frequently occurring tumors of the soft tissues, representing 17% to 30% of all mesenchymal cell tumors. It is less common in the head and neck representing <10% of tumors in this region. The reconstruction of defects derived from resection of these tumors presents a surgical challenge. New three-dimensional digital technologies allow more exact surgery, cause less morbidity, and achieve adequate aesthetic outcomes. OBJECTIVE: The aim of this article was to describe the complex reconstruction of a defect caused by the resection of a liposarcoma in the temporal region...
October 11, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29022281/isolated-limb-perfusion-and-infusion-for-extremity-soft-tissue-sarcoma-a-contemporary-systematic-review-and-meta-analysis
#19
Madalyn G Neuwirth, Yun Song, Andrew J Sinnamon, Douglas L Fraker, Jonathan S Zager, Giorgos C Karakousis
BACKGROUND: Isolated limb perfusion (ILP) and isolated limb infusion (ILI) have been variably used in recent years for the treatment of locally advanced or marginally resectable extremity soft tissue sarcomas (STSs). We performed a systematic review and meta-analysis of contemporary studies to further characterize treatment patterns and outcomes. METHODS: PubMed was queried for articles published in or after the year 2000, in the English language, with > 10 patients, and with adequate outcome data following ILP/ILI...
December 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28994196/demographics-management-and-treatment-outcomes-of-benign-and-malignant-retroperitoneal-tumors-in-japan
#20
Naohiro Fujimoto, Tatsuhiko Kubo, Masanori Hisaoka, Kazuma Udo, Akira Yokomizo, Tadamasa Shibuya, Hironobu Wakeda, Kiyoaki Nishihara, Ryosuke Moriya, Keiko Iwakuma
OBJECTIVES: To show the demographics, type of treatment and clinical outcomes of patients with retroperitoneal tumors in Japan. METHODS: We carried out a retrospective analysis of patients with retroperitoneal tumors treated between 2000 and 2012 at 12 university hospitals in Japan. Histology was re-evaluated using the 2013 World Health Organization classification. RESULTS: A total of 167 patients were included in the analysis. The number of diagnosed patients increased over the 12-year study period...
October 9, 2017: International Journal of Urology: Official Journal of the Japanese Urological Association
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