scholarly journals Rhabdomyosarcoma: Advances in Molecular and Cellular Biology

Sarcoma ◽  
2015 ◽  
Vol 2015 ◽  
pp. 1-14 ◽  
Author(s):  
Xin Sun ◽  
Wei Guo ◽  
Jacson K. Shen ◽  
Henry J. Mankin ◽  
Francis J. Hornicek ◽  
...  

Rhabdomyosarcoma (RMS) is the most common soft tissue malignancy in childhood and adolescence. The two major histological subtypes of RMS are alveolar RMS, driven by the fusion protein PAX3-FKHR or PAX7-FKHR, and embryonic RMS, which is usually genetically heterogeneous. The prognosis of RMS has improved in the past several decades due to multidisciplinary care. However, in recent years, the treatment of patients with metastatic or refractory RMS has reached a plateau. Thus, to improve the survival rate of RMS patients and their overall well-being, further understanding of the molecular and cellular biology of RMS and identification of novel therapeutic targets are imperative. In this review, we describe the most recent discoveries in the molecular and cellular biology of RMS, including alterations in oncogenic pathways, miRNA (miR),in vivomodels, stem cells, and important signal transduction cascades implicated in the development and progression of RMS. Furthermore, we discuss novel potential targeted therapies that may improve the current treatment of RMS.

2016 ◽  
Vol 311 (1) ◽  
pp. F63-F65 ◽  
Author(s):  
Maria Del Nogal-Avila ◽  
Hector Donoro-Blazquez ◽  
Manish K. Saha ◽  
Caroline B. Marshall ◽  
Lionel C. Clement ◽  
...  

Improved understanding of glomerular disease mechanisms over the past decade has led to the emergence of new and targeted therapeutic strategies for chronic kidney disease (CKD). Most promising among these are the administration of recombinant mutated human angiopoietin-like 4, sialic acid-related sugars that induce sialylation in vivo, compounds related to Bis-T-23, and immune depletion of the soluble urokinase receptor from the circulation. Taking these therapeutic strategies into clinical trials will be the first step away from repurposed and relatively toxic drugs currently used for treating kidney disease.


Oncogenesis ◽  
2021 ◽  
Vol 10 (5) ◽  
Author(s):  
Yi-Wen Wu ◽  
Min-Wu Chao ◽  
Huang-Ju Tu ◽  
Liang-Chieh Chen ◽  
Kai-Cheng Hsu ◽  
...  

AbstractAcute leukemia is a highly heterogeneous disease; therefore, combination therapy is commonly used for patient treatment. Drug–drug interaction is a major concern of combined therapy; hence, dual/multi-target inhibitors have become a dominant approach for cancer drug development. HDACs and HSP90 are involved in the activation of various oncogenic signaling pathways, including PI3K/AKT/mTOR, JAK/STAT, and RAF/MEK/ERK, which are also highly enriched in acute leukemia gene expression profiles. Therefore, we suggest that dual HDAC and HSP90 inhibitors could represent a novel therapeutic approach for acute leukemia. MPT0G449 is a dual effect inhibitor, and it showed cytotoxic effectiveness in acute leukemia cells. Molecular docking analysis indicated that MPT0G449 possessed dual HDAC and HSP90 inhibitory abilities. Furthermore, MPT0G449 induced G2 arrest and caspase-mediated cell apoptosis in acute leukemia cells. The oncogenic signaling molecules AKT, mTOR, STAT3, STAT5, MEK, and ERK were significantly downregulated after MPT0G449 treatment in HL-60 and MOLT-4 cells. In vivo xenograft models confirmed the antitumor activity and showed the upregulation of acetyl-histone H3 and HSP70, biomarkers of pan-HDAC and HSP90 inhibition, with MPT0G449 treatment. These findings suggest that the dual inhibition of HDAC and HSP90 can suppress the expression of oncogenic pathways in acute leukemia, and MPT0G449 represents a novel therapeutic for anticancer treatment.


In recent years, interest in the lives of children in antiquity has flourished, creating many exciting new research opportunities for bioarchaeologists. In this book, the exploration of children’s lives in the past is being addressed on multiple levels and draws from many sub-disciplines. These multi-disciplinary approaches include detailed analyses of growth and ontogeny interpreted through differing biocultural perspectives, complex reconstructions of childhood health and well-being, and rich contextual investigations of social aging and changing identity throughout childhood and adolescence. All of these research streams contribute substantially to our understanding of childhood in the past, but there is often a disconnect between biological and social spheres of research. A central theme of this volume is that future work on the lives of children in antiquity should be built on a strong foundation of biocultural research that draws from, and more successfully integrates, multiple sub-disciplines, including skeletal biology and physiology, archaeology, and socio-cultural anthropology. This deepening of biocultural approaches is essential if we are to study the lives of children in ways that better reflect the complexity of the juvenile period. The end goal is to highlight how diverse research interests can be brought together to enrich our understanding of childhood in the past and particularly to better understand childhood as a dynamic, embodied experience (“lived through” both physically and socially).


2020 ◽  
Vol 43 (3) ◽  
pp. 202-204
Author(s):  
Tracy L. Cross

Over the past 10-15 years, parents, educators, counselors and others who work with or care for students with gifts and talents have expressed increasing concerns about the students’ psychological well-being. The stressors of today’s world offer one explanation for potentially more difficult experiences. The column includes steps that may be taken to help students with gifts and talents navigate the unfortunate experiences that will likely define their childhood and adolescence.


Author(s):  
K.E. Krizan ◽  
J.E. Laffoon ◽  
M.J. Buckley

With increase use of tissue-integrated prostheses in recent years it is a goal to understand what is happening at the interface between haversion bone and bulk metal. This study uses electron microscopy (EM) techniques to establish parameters for osseointegration (structure and function between bone and nonload-carrying implants) in an animal model. In the past the interface has been evaluated extensively with light microscopy methods. Today researchers are using the EM for ultrastructural studies of the bone tissue and implant responses to an in vivo environment. Under general anesthesia nine adult mongrel dogs received three Brånemark (Nobelpharma) 3.75 × 7 mm titanium implants surgical placed in their left zygomatic arch. After a one year healing period the animals were injected with a routine bone marker (oxytetracycline), euthanized and perfused via aortic cannulation with 3% glutaraldehyde in 0.1M cacodylate buffer pH 7.2. Implants were retrieved en bloc, harvest radiographs made (Fig. 1), and routinely embedded in plastic. Tissue and implants were cut into 300 micron thick wafers, longitudinally to the implant with an Isomet saw and diamond wafering blade [Beuhler] until the center of the implant was reached.


Author(s):  
Robert Klinck ◽  
Ben Bradshaw ◽  
Ruby Sandy ◽  
Silas Nabinacaboo ◽  
Mannie Mameanskum ◽  
...  

The Naskapi Nation of Kawawachikamach is an Aboriginal community located in northern Quebec near the Labrador Border. Given the region’s rich iron deposits, the Naskapi Nation has considerable experience with major mineral development, first in the 1950s to the 1980s, and again in the past decade as companies implement plans for further extraction. This has raised concerns regarding a range of environmental and socio-economic impacts that may be caused by renewed development. These concerns have led to an interest among the Naskapi to develop a means to track community well-being over time using indicators of their own design. Exemplifying community-engaged research, this paper describes the beginning development of such a tool in fall 2012—the creation of a baseline of community well-being against which mining-induced change can be identified. Its development owes much to the remarkable and sustained contribution of many key members of the Naskapi Nation. If on-going surveying is completed based on the chosen indicators, the Nation will be better positioned to recognize shifts in its well-being and to communicate these shifts to its partners. In addition, long-term monitoring will allow the Naskapi Nation to contribute to more universal understanding of the impacts of mining for Indigenous peoples.


2018 ◽  
Vol 18 (2) ◽  
pp. 156-165 ◽  
Author(s):  
Jiaqiang Wang ◽  
Chien-shan Cheng ◽  
Yan Lu ◽  
Xiaowei Ding ◽  
Minmin Zhu ◽  
...  

Background: Propofol, a widely used intravenous anesthetic agent, is traditionally applied for sedation and general anesthesia. Explanation: Recent attention has been drawn to explore the effect and mechanisms of propofol against cancer progression in vitro and in vivo. Specifically, the proliferation-inhibiting and apoptosis-inducing properties of propofol in cancer have been studied. However, the underlying mechanisms remain unclear. Conclusion: This review focused on the findings within the past ten years and aimed to provide a general overview of propofol's malignance-modulating properties and the potential molecular mechanisms.


Author(s):  
Abbie J. Shipp

Temporal focus is the individual tendency to characteristically think more or less about the past, present, and future. Although originally rooted in early work from psychology, research on temporal focus has been steadily growing in a number of research areas, particularly since Zimbardo and Boyd’s (1999) influential article on the topic. This chapter will review temporal focus research from the past to the present, including how temporal focus has been conceptualized and measured, and which correlates and outcomes have been tested in terms of well-being and behavior. Based on this review, an agenda for research is created to direct temporal focus research in the future.


1970 ◽  
Vol 2 (3) ◽  
pp. 17-19 ◽  
Author(s):  
Jack D Ives

Preview of Himalayan perceptions: Environmental change and the well-being of mountain peoples by JD Ives Routledge, London and New York To be published in August 2004 Himalayan Perspectives returns to the enormously popular development paradigm that Ives dubbed the ‘Theory of Himalayan Degradation’. According to this seductive construct, poverty and overpopulation in the Himalayas was leading to degradation of highland forests, erosion, and downstream flooding. In the ‘Himalayan Dilemma’, Ives and Messerli exposed this “Theory” as a dangerous collection of assumptions and misrepresentations. While most scholars in the field promptly conceded Ives and Messerli’s points, the Theory has somehow survived as the guiding myth of development planners and many government agencies. In his new book, Ives returns to drive a stake through the heart of this revenant. His book not only reviews the research that, over the past 15 years, has confirmed the arguments of the ‘Himalayan Dilemma’; it also takes a close look at all those destructive factors that were overlooked by the conveniently simplistic ‘Theory of Himalayan Environmental Degradation’: government mismanagement, oppression of mountain minorities, armed conflict, and inappropriate tourism development. Himalayan Journal of Sciences 2(3): 17-19, 2004 The full text is of this article is available at the Himalayan Journal of Sciences website


2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
S Brolin Låftman ◽  
Y Bjereld ◽  
B Modin ◽  
P Löfstedt

Abstract Background Students who are subjected to sexual harassment at school report lower psychological well-being than those who are not exposed. Yet, it is possible that the occurrence of sexual harassment in the school class is stressful also for those who are not directly targeted, with potential negative effects on well-being for all students. The aim was to examine whether sexual harassment at the student- and at the class-level was associated with students' psychological complaints. Methods Data from the Swedish Health Behaviour in School-aged Children (HBSC) of 2017/18 was used, with information from students aged 11, 13 and 15 years (n = 3,720 distributed across 209 classes). Psychological complaints were constructed as a summative index of four items capturing how often the student had felt low, felt irritable or bad tempered, felt nervous, or had difficulties to fall asleep, during the past six months (Cronbach's alpha=0.78). Sexual harassment at the student-level was measured by one item concerning bullying at school: “Other students have exposed me to sexual jokes”. Students who reported that this had happened at least “2 or 3 times a month” were classified as exposed to sexual harassment at school. Sexual harassment at the class-level was defined as the school class proportion of students exposed to sexual harassment, reported in per cent. Two-level linear regression analysis was applied. Results Students who had been exposed to sexual harassment had higher levels of psychological complaints (b = 2.74, p < 0.001). The proportion of students in the school class who had been exposed to sexual harassment was also associated with higher levels of psychological complaints, even when adjusting for sexual harassment at the student-level, gender and grade (b = 0.03, p = 0.015). Conclusions Sexual harassment is harmful for those who are exposed, but may also affect other students negatively. Thus, a school climate free from sexual harassment will profit all students. Key messages Using data collected among students aged 11, 13 and 15 years, this study showed that sexual harassment at the student- and class-level was associated with higher levels of psychological complaints. Sexual harassment is harmful for those who are exposed, but may also affect other students negatively. Thus, a school climate free from sexual harassment will profit all students.


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