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https://www.readbyqxmd.com/read/29344312/an-endogenous-vaccine-based-on-fluorophores-and-multivalent-immunoadjuvants-regulates-tumor-micro-environment-for-synergistic-photothermal-and-immunotherapy
#1
Ling Li, Suleixin Yang, Linjiang Song, Yan Zeng, Tao He, Ning Wang, Chuan Yu, Tao Yin, Li Liu, Xiawei Wei, Qinjie Wu, Yuquan Wei, Li Yang, Changyang Gong
Recently, near-infrared (NIR) light-based photothermal therapy (PTT) has been widely applied in cancer treatment. However, in most cases, the tissue penetration depth of NIR light is not sufficient and thus photothermal therapy is unable to completely eradicate deep, seated tumors inevitably leading to recurrence of the tumor. Due to this significant limitation of NIR, improved therapeutic strategies are urgently needed. Methods: We developed an endogenous vaccine based on a novel nanoparticle platform for combinatorial photothermal ablation and immunotherapy...
2018: Theranostics
https://www.readbyqxmd.com/read/29344162/effects-of-rat-bone-marrow-derived-mesenchymal-stem-cells-on-breast-cancer-cells-with-differing-hormone-receptor-status
#2
Ying Wang, Shan Shao, Minna Luo, Shangke Huang, Lu Feng, Na Yuan, Fang Wu, Chengxue Dang, Xinhan Zhao
Breast cancer is a heterogeneous disease that can be classified into several molecular intrinsic subtypes according to hormone markers, including estrogen receptor, progesterone receptor and human epidermal growth factor receptor-2. Breast cancer cases with different hormone status vary with respect to patient morbidity, metastasis organotropism and disease progression. It is well known that the most preferential relapse site of breast cancer is in the bone, but the metastatic incidence is markedly higher in hormone receptor-positive cancer compared with that in hormone receptor-negative cancers...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29343434/a-long-distance-relay-tionship-between-tumor-and-bone
#3
Klara Soukup, Johanna A Joyce
Myeloid cells, including neutrophils, are important regulators of tumor growth and metastasis. In Science, Engblom et al. (2017) reveal how lung tumors remotely engage bone-resident cells through a relay mechanism that achieves a sustained supply of tumor-promoting neutrophils.
January 16, 2018: Immunity
https://www.readbyqxmd.com/read/29340117/the-regulation-of-pre-metastatic-niche-formation-by-neutrophils
#4
REVIEW
Jadwiga Jablonska, Stephan Lang, Ronit Vogt Sionov, Zvi Granot
Metastasis is a multistep process requiring tumor cell detachment from the primary tumor and migration to target organs through the lymphatic or blood circulatory systems. Specific organs are predisposed to metastases in certain cancers and the formation of supportive metastatic microenvironment determines tumor cell homing. Such an environment is provided by a pre-metastatic niche that is formed through the recruitment of bone marrow-derived myeloid cells, however the mechanisms of its formation are not fully understood...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29339479/hif-signaling-in-osteoblast-lineage-cells-promotes-systemic-breast-cancer-growth-and-metastasis-in-mice
#5
Claire-Sophie Devignes, Yetki Aslan, Audrey Brenot, Audrey Devillers, Koen Schepers, Stéphanie Fabre, Jonathan Chou, Amy-Jo Casbon, Zena Werb, Sylvain Provot
Bone metastasis involves dynamic interplay between tumor cells and the local stromal environment. In bones, local hypoxia and activation of the hypoxia-inducible factor (HIF)-1α in osteoblasts are essential to maintain skeletal homeostasis. However, the role of osteoblast-specific HIF signaling in cancer metastasis is unknown. Here, we show that osteoprogenitor cells (OPCs) are located in hypoxic niches in the bone marrow and that activation of HIF signaling in these cells increases bone mass and favors breast cancer metastasis to bone locally...
January 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29339080/prostate-cancer-disseminated-tumor-cells-are-rarely-detected-in-the-bone-marrow-of-localized-patients-undergoing-radical-prostatectomy-across-multiple-rare-cell-detection-platforms
#6
Heather J Chalfin, Stephanie A Glavaris, Paymaneh D Malihi, Jamie M Sperger, Michael A Gorin, Changxue Lu, C Rory Goodwin, Yan Chen, Emily A Caruso, Ruth Dumpit, Peter Kuhn, Joshua M Lang, Peter S Nelson, Jun Luo, Kenneth J Pienta
PURPOSE: Prostate circulating tumor cells escape into the peripheral blood and enter the bone marrow as disseminated tumor cells, representing an early step before conventionally detectable metastasis. It is unclear how frequently this occurs in localized disease, and existing detection methods rely on epithelial markers with low specificity and sensitivity. Here we employed multiple methodologies of disseminated tumor cell detection in bone marrow harvested at radical prostatectomy. MATERIALS AND METHODS: Bone marrow was harvested from 208 clinically localized patients, 16 controls, and 5 metastatic patients, with peripheral blood from 37 metastatic patients...
January 12, 2018: Journal of Urology
https://www.readbyqxmd.com/read/29337282/comparative-proteome-analysis-of-monolayer-and-spheroid-culture-of-canine-osteosarcoma-cells
#7
Christiane Gebhard, Ingrid Miller, Karin Hummel, Martina Neschi Née Ondrovics, Sarah Schlosser, Ingrid Walter
Osteosarcoma is an aggressive bone tumor with high metastasis rate in the lungs and affects both humans and dogs in a similar way. Three-dimensional tumor cell cultures mimic the in vivo situation of micro-tumors and metastases and are therefore better experimental in vitro models than the often applied two-dimensional monolayer cultures. The aim of the present study was to perform comparative proteomics of standard monolayer cultures of canine osteosarcoma cells (D17) and three-dimensional spheroid cultures, to better characterize the 3D model before starting with experiments like migration assays...
January 11, 2018: Journal of Proteomics
https://www.readbyqxmd.com/read/29337106/loss-of-tgf-%C3%AE-signaling-in-osteoblasts-increases-basic-fgf-and-promotes-prostate-cancer-bone-metastasis
#8
Xiangqi Meng, Alexandra Vander Ark, Paul Daft, Erica Woodford, Jie Wang, Zachary Madaj, Xiaohong Li
TGF-β plays a central role in prostate cancer (PCa) bone metastasis, and it is crucial to understand the bone cell-specific role of TGF-β signaling in this process. Thus, we used knockout (KO) mouse models having deletion of the Tgfbr2 gene specifically in osteoblasts (Tgfbr2Col1CreERT KO) or in osteoclasts (Tgfbr2LysMCre KO). We found that PCa-induced bone lesion development was promoted in the Tgfbr2Col1CreERT KO mice, but was inhibited in the Tgfbr2LysMCre KO mice, relative to their respective control Tgfbr2FloxE2 littermates...
January 11, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29333006/rational-use-of-imaging-to-stage-breast-cancer-evidences-for-a-selective-approach
#9
S G D Gangadaran
Introduction: Staging investigations at diagnosis are customary to accurately assign a clinical stage before therapy. The practice of routine imaging in patients asymptomatic for metastasis is not recommended but widely adopted. This study was done to reexamine the basis behind guideline recommendations and to identify the factors predictive of asymptomatic metastasis. Methods: Oncology records of 200 breast cancer patients in clinical Stages I-III at diagnosis were prospectively reviewed...
October 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29330462/mir-143-3p-inhibits-the-proliferation-migration-and-invasion-in-osteosarcoma-by-targeting-fosl2
#10
Xiangran Sun, Guo Dai, Ling Yu, Qingzhu Hu, Jingteng Chen, Weichun Guo
Osteosarcoma (OS) is the most common type of primary malignant bone tumor and mainly occurs in children and adolescent. Because of its early migration and invasion, OS has a poor prognosis. It has been reported that mircoRNAs (miRNAs) play a crucial role in the occurrence and development of multiple tumors. In this study, we identified the aberrant-expression of miR-143-3p in osteosarcoma and examined the role of miR-143-3p in OS development. Further, we searched the miR-143-3p target gene and verified its accuracy by luciferase experiments...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29330051/anti-tumor-effects-of-triptolide-on-angiogenesis-and-cell-apoptosis-in-osteosarcoma-cells-by-inducing-autophagy-via-repressing-wnt-%C3%AE-catenin-signaling
#11
Xugui Li, Qilin Lu, Wei Xie, Yang Wang, Guanqing Wang
Osteosarcoma is a common malignant bone tumor occurring in adolescents and children. The poor prognosis and low 5-year survival rate of osteosarcoma partly due to high metastasis of osteosarcoma. Triptolide (TPL), an extract from Tripterygium wilfordii, is widely used in cancer treatment. In our present study, we aimed to study the effect of TPL in osteosarcoma treatment and explore the associated regulation mechanism. Our study revealed that TPL inhibited angiogenesis by suppressing the expression of hypoxia inducible factor-1α (HIF-1α) and vascular endothelial growth factor (VEGF) in dose dependent manner...
January 9, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29327939/blockade-of-the-complement-c5a-c5ar1-axis-impairs-lung-cancer-bone-metastasis-by-cxcl16-mediated-effects
#12
Daniel Ajona, Carolina Zandueta, Leticia Corrales, Haritz Moreno, María J Pajares, Sergio Ortiz-Espinosa, Elena Martínez-Terroba, Naiara Perurena, Fernando J de Miguel, Eloisa Jantus-Lewintre, Carlos Camps, Silvestre Vicent, Jackeline Agorreta, Luis M Montuenga, Ruben Pio, Fernando Lecanda
RATIONALE: C5aR1(CD88), a receptor for complement anaphylatoxin C5a, is a potent immune mediator. Its impact on malignant growth and dissemination of NSCLC cells is poorly understood. OBJECTIVES: To investigate the contribution of the C5a/C5aR1 axis to the malignant phenotype of NSCLC cells, particularly in skeletal colonization, a preferential lung metastasis site. METHODS: Association between C5aR1 expression and clinical outcome was assessed in silico and validated by immunohistochemistry...
January 12, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29325948/spinal-metastasis-resulting-from-atypical-thymic-carcinoid-a-case-report
#13
Xinjie Wu, Yingna Qi, Feng Yang, Mingsheng Tan, Jie Lin
BACKGROUND: Thymic carcinoid with spinal metastasis is an extremely rare entity. Clinically, the tumor presents either by its endocrine manifestations or by mechanical compression of surrounding structures. However, no previous studies reported a case with neck pain, and neurological deficit as initial presentation of an atypical thymic carcinoid. METHOD: A 56-year-old non-smoking man presented with 12-month history of intermittent neck pain and 1-month history of progressive numbness and weakness of the right upper limb...
January 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29325640/selective-egf-receptor-inhibition-in%C3%A2-cd4-%C3%A2-t%C3%A2-cells-induces-anergy-and%C3%A2-limits%C3%A2-atherosclerosis
#14
Lynda Zeboudj, Mikael Maître, Lea Guyonnet, Ludivine Laurans, Jeremie Joffre, Jeremie Lemarie, Simon Bourcier, Wared Nour-Eldine, Coralie Guérin, Jonas Friard, Abdelilah Wakkach, Elizabeth Fabre, Alain Tedgui, Ziad Mallat, Pierre-Louis Tharaux, Hafid Ait-Oufella
BACKGROUND: Several epidermal growth factor receptor (EGFR) inhibitors have been successfully developed for the treatment of cancer, limiting tumor growth and metastasis. EGFR is also expressed by leukocytes, but little is known about its role in the modulation of the immune response. OBJECTIVES: The aim of this study was to determine whether EGFR expressed on CD4+ T cells is functional and to address the consequences of EGFR inhibition in atherosclerosis, a T cell-mediated vascular chronic inflammatory disease...
January 16, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29324926/risk-stratification-and-staging-in-prostate-cancer-with-prostatic-specific-membrane-antigen-pet-ctobjective-a-one-stop-shop
#15
Manoj Gupta, Partha Sarathi Choudhury, Sudhir Rawal, Harish Chandra Goel, Amitabh Singh, Vineet Talwar, Saroj Kumar Sahoo
OBJECTIVE: Current imaging modalities for prostate cancer (PC) had limitations for risk stratification and staging. Magnetic resonance imaging (MRI) frequently underestimated lymphatic metastasis while bone scintigraphy often had diagnostic dilemmas. Prostatic specific membrane antigen (PSMA) positron emission tomography-computed tomography (PET/CT) has been remarkable in diagnosing PC recurrence and staging. We hypothesized it can become one-stop-shop for initial risk stratification and staging...
September 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29323740/long-non-coding-rna-asbel-promotes-osteosarcoma-cell-proliferation-migration-and-invasion-by-regulating-microrna-21
#16
Jianhui Zhao, Zhongli Gao, Chao Zhang, Han Wu, Rui Gu, Rui Jiang
Osteosarcoma is the most common malignant bone tumor in children and adolescents with high rate of incidence, high frequency of recurrence and high degree of metastasis. This study aimed to investigate the effects of long noncoding RNA antisense ncRNA in the Abundant in neuroepithelium area (ANA)/B-cell translocation gene 3 (BTG3) locus (lncRNA ASBEL) on the pathogenesis of osteosarcoma. The expression levels of ASBEL in human osteoblast cells and human osteosarcoma cells were evaluated using qRT-PCR. Effects of ASBEL knockdown on cell viability, migration and invasion were detected using trypan blue exclusion assay, cell migration and invasion assay, respectively...
January 11, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29318761/suitability-of-the-cellienttm-cell-block-method-for-diagnosing-soft-tissue-and-bone-tumors
#17
W Song, B M van Hemel, A J H Suurmeijer
BACKGROUND: The diagnosis of tumors of soft tissue and bone (STB) heavily relies on histological biopsies, whereas cytology is not widely used. CellientTM cell blocks often contain small tissue fragments. In addition to Hematoxylin and Eosin (H&E) interpretation of histological features, immunohistochemistry (IHC) can be applied after optimization of protocols. The objective of this retrospective study was to see whether this cytological technique allowed us to make a precise diagnosis of STB tumors...
January 10, 2018: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/29316907/expression-of-mmp-9-decreases-metastatic-potential-of-chondrosarcoma-an-immunohistochemical-study
#18
Dominik Malcherczyk, Thomas J Heyse, Bilal F El-Zayat, Vanessa Kunzke, Roland Moll, Susanne Fuchs-Winkelmann, Jürgen R J Paletta
BACKGROUND: Chondrosarcoma is the second most common primary malignant bone tumor. Because of their heterogeneity, with differences in invasive and metastatic behavior, it is important to identify biological markers that will allow for a more accurate estimation of prognosis in patients with these tumors. Matrix metalloproteinases (MMP) play a crucial role in tumor progression, invasion and metastasis. The mechanism of tumor progression dependent of MMPs is complex and influences malignant transformation, angiogenesis and tumor growth at the primary and metastatic sites...
January 9, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29315595/mid-to-long-term-clinical-outcome-of-giant-cell-tumor-of-bone-treated-with-calcium-phosphate-cement-following-thorough-curettage-and-phenolization
#19
Akihiko Takeuchi, Prakrit Suwanpramote, Norio Yamamoto, Toshiharu Shirai, Katsuhiro Hayashi, Hiroaki Kimura, Shinji Miwa, Takashi Higuchi, Kensaku Abe, Hiroyuki Tsuchiya
BACKGROUND AND OBJECTIVES: Giant cell tumors of bone (GCTB) are intermediate and locally aggressive bone tumor. Calcium phosphate cement (CPC) is a bone void filler used in orthopaedic surgery. This study investigated the clinical outcome of GCTB treated with thorough curettage, phenolization, and CPC. METHODS: We investigated 26 patients with at least 36 months of follow-up. The mean age and follow-up were 37 years (range: 19-63) and 87 months (range: 38-169), respectively...
January 8, 2018: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29315431/receptor-conversion-in-distant-breast-cancer-metastases-a-systematic-review-and-meta-analysis
#20
Willemijne A M E Schrijver, Karijn P M Suijkerbuijk, Carla H van Gils, Elsken van der Wall, Cathy B Moelans, Paul J van Diest
Background: In metastatic breast cancer, hormone and/or human epidermal growth factor receptor 2 (HER2)-targeted therapy decision-making is still largely based on tissue characteristics of the primary tumor. However, a change of estrogen receptor alpha (ERα), progesterone receptor (PR), and HER2 status in distant metastases has frequently been reported. The actual incidence of this phenomenon has been debated. Methods: We performed a meta-analysis including 39 studies assessing receptor conversion from primary breast tumors to paired distant breast cancer metastases...
January 5, 2018: Journal of the National Cancer Institute
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