• Title/Summary/Keyword: Therapeutic strategies

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Epstein-Barr Virus-Associated Classical Hodgkin Lymphoma and Its Therapeutic Strategies

  • Lee, Im-Soon
    • Biomolecules & Therapeutics
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    • v.19 no.4
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    • pp.398-410
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    • 2011
  • Over the past few decades, our understanding of the epidemiology and immunopathogenesis of Hodgkin lymphoma (HL) has made enormous advances. Consequently, the treatment of HL has changed significantly, rendering this disease of the most curable human cancers. To date, about 80% of patients achieve long-term disease-free survival. However, therapeutic challenges still remain, particularly regarding the salvage strategies for relapsed and refractory disease, which need further identification of better prognostic markers and novel therapeutic schemes. Although the precise molecular mechanism by which Epstein-Barr virus (EBV) contributes to the generation of malignant cells present in HL still remains unknown, current increasing data on the role of EBV in the pathobiology of HL have encouraged people to start developing novel and specific therapeutic strategies for EBV-associated HL. This review will provide an overview of therapeutic approaches for acute EBV infection and the classical form of HL (cHL), especially focusing on EBV-associated HL cases.

A non-replicating oncolytic vector as a novel therapeutic tool against cancer

  • Kaneda, Yasufumi
    • BMB Reports
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    • v.43 no.12
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    • pp.773-780
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    • 2010
  • Cancers are still difficult targets despite recent advances in cancer therapy. Due to the heterogeneity of cancer, a single-treatment modality is insufficient for the complete elimination of cancer cells. Therapeutic strategies from various aspects are needed. Gene therapy has been expected to bring a breakthrough to cancer therapy, but it has not yet been successful. Gene therapy also should be combined with other treatments to enhance multiple therapeutic pathways. In this view, gene delivery vector itself should be equipped with intrinsic anti-cancer activities. HVJ (hemagglutinating virus of Japan; Sendai virus) envelope vector (HVJ-E) was developed to deliver therapeutic molecules. HVJ-E itself possessed anti-tumor activities such as the generation of anti-tumor immunities and the induction of cancer-selective apoptosis. In addition to the intrinsic anti-tumor activities, therapeutic molecules incorporated into HVJ-E enabled to achieve multi-modal therapeutic strategies in cancer treatment. Tumor-targeting HVJ-E was also developed. Thus, HVJ-E will be a novel promising tool for cancer treatment.

Novel biological strategies to enhance the radiation therapeutic ratio

  • Kim, Jae Ho;Jenrow, Kenneth A.;Brown, Stephen L.
    • Radiation Oncology Journal
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    • v.36 no.3
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    • pp.172-181
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    • 2018
  • Successful anticancer strategies require a differential response between tumor and normal tissue (i.e., a therapeutic ratio). In fact, improving the effectiveness of a cancer therapeutic is of no clinical value in the absence of a significant increase in the differential response between tumor and normal tissue. Although radiation dose escalation with the use of intensity modulated radiation therapy has permitted the maximum tolerable dose for most locally advanced cancers, improvements in tumor control without damaging normal adjacent tissues are needed. As a means of increasing the therapeutic ratio, several new approaches are under development. Drugs targeting signal transduction pathways in cancer progression and more recently, immunotherapeutics targeting specific immune cell subsets have entered the clinic with promising early results. Radiobiological research is underway to address pressing questions as to the dose per fraction, irradiated tumor volume and time sequence of the drug administration. To exploit these exciting novel strategies, a better understanding is needed of the cellular and molecular pathways responsible for both cancer and normal tissue and organ response, including the role of radiation-induced accelerated senescence. This review will highlight the current understanding of promising biologically targeted therapies to enhance the radiation therapeutic ratio.

Glyco-engineering strategies for the development of therapeutic enzymes with improved efficacy for the treatment of lysosomal storage diseases

  • Oh, Doo-Byoung
    • BMB Reports
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    • v.48 no.8
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    • pp.438-444
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    • 2015
  • Lysosomal storage diseases (LSDs) are a group of inherent diseases characterized by massive accumulation of undigested compounds in lysosomes, which is caused by genetic defects resulting in the deficiency of a lysosomal hydrolase. Currently, enzyme replacement therapy has been successfully used for treatment of 7 LSDs with 10 approved therapeutic enzymes whereas new approaches such as pharmacological chaperones and gene therapy still await evaluation in clinical trials. While therapeutic enzymes for Gaucher disease have N-glycans with terminal mannose residues for targeting to macrophages, the others require N-glycans containing mannose-6-phosphates that are recognized by mannose-6-phosphate receptors on the plasma membrane for cellular uptake and targeting to lysosomes. Due to the fact that efficient lysosomal delivery of therapeutic enzymes is essential for the clearance of accumulated compounds, the suitable glycan structure and its high content are key factors for efficient therapeutic efficacy. Therefore, glycan remodeling strategies to improve lysosomal targeting and tissue distribution have been highlighted. This review describes the glycan structures that are important for lysosomal targeting and provides information on recent glyco-engineering technologies for the development of therapeutic enzymes with improved efficacy. [BMB Reports 2015; 48(8): 438-444]

The Recovery Process of Alcohol Dependent Men Living in a Therapeutic Community (치료공동체에 거주하는 남성 알코올의존자의 회복과정)

  • Kang, Sungye
    • Journal of Korean Academy of Nursing
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    • v.47 no.2
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    • pp.267-276
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    • 2017
  • Purpose: The purpose of this study was to explore the recovering process of men who had abused alcohol and has lived in a therapeutic community. Methods: Individual in-depth interviews were used to collect data from 10 of these men who has lived in the therapeutic community for more than one year. Qualitative data from field notes and transcribed notes were analyzed using the grounded theory methodology developed by Strauss and Corbin. Results: The core category about the recovering process of the men who had abused alcohol and are now in the therapeutic community was identified as "reconstructing a broken life". The recovering process of these men in the therapeutic community consisted of four phases; 'self-awareness stage', 'unfreezing stage', 'readjustment stage', and 'challenging stage'. Conclusion: In this study "reconstructing a broken life", as the core category vividly showed joys and sorrows of men who had abused alcohol and has lived in the recovering process of managing the yoke of life-long disease. In this process of recovery from alcoholic dependence the men gradually adjusted themselves to their given condition. Also they gained coping strategies to care for, and protect themselves. Therefore health care providers can establish supportive programs in the clinical field to empower these men by reflecting their proactive coping strategies.

Tumor Stroma as a Therapeutic Target for Pancreatic Ductal Adenocarcinoma

  • Dae Ui Lee;Beom Seok Han;Kyung Hee Jung;Soon-Sun Hong
    • Biomolecules & Therapeutics
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    • v.32 no.3
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    • pp.281-290
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    • 2024
  • Pancreatic ductal adenocarcinoma (PDAC) has a poor prognosis owing to its desmoplastic stroma. Therefore, therapeutic strategies targeting this tumor stroma should be developed. In this study, we describe the heterogeneity of cancer-associated fibroblasts (CAFs) and their diverse roles in the progression, immune evasion, and resistance to treatment of PDAC. We subclassified the spatial distribution and functional activity of CAFs to highlight their effects on prognosis and drug delivery. Extracellular matrix components such as collagen and hyaluronan are described for their roles in tumor behavior and treatment outcomes, implying their potential as therapeutic targets. We also discussed the roles of extracellular matrix (ECM) including matrix metalloproteinases and tissue inhibitors in PDAC progression. Finally, we explored the role of the adaptive and innate immune systems in shaping the PDAC microenvironment and potential therapeutic strategies, with a focus on immune cell subsets, cytokines, and immunosuppressive mechanisms. These insights provide a comprehensive understanding of PDAC and pave the way for the development of prognostic markers and therapeutic interventions.

Physical Therapy Strategies for the Patient With Hysterical Motor Paralysis Disorder : A Case Report and Literature Review

  • Oh, Duck-Won;Yoo, Eun-Young
    • Physical Therapy Korea
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    • v.11 no.4
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    • pp.43-49
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    • 2004
  • It is not common in rehabilitation situation to encounter patients exhibiting paralysis or other disabilities which have no apparent organic basis. Even without organic causes for their signs and symptoms these patients often require comprehensive treatment and management. Patients with conversion disorder often pose particular difficulties because of diagnostic confusion and the lack of therapeutic strategies for rehabilitation management. We feel that systematic functional rehabilitation is helpful in resolving symptom and recovering normal function in the patient suffering from conversion disorder since it provides motivation and reduces reinforcements which contribute to sustained disabled state. This report describes the patient with hysterical motor paralysis who is successfully treated with structured physical therapy. The objectives of this report are to provide therapeutic guidelines for physical therapy and to emphasize the role of physical therapist in the assessment and treatment of hysterical paralysis.

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Prostate Cancer in Younger and Older Patients: Do We Treat Them Differently?

  • Situmorang, Gerhard Reinaldi;Umbas, Rainy;Mochtar, Chaidir A.;Santoso, Rachmat Budi
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.9
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    • pp.4577-4580
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    • 2012
  • Diagnostic and therapeutic strategies of prostate cancer may largely influenced by patients' age at presentation. This study is aimed to evaluate the characteristics, diagnostic and treatment strategies in prostate cancer patients in our centres. A cross-sectional analytic study of prostate cancer data in two main referral cancer centres, Cipto Mangunkusumo General Hospital and Dharmais National Cancer Centre from 1995-2010, was therefore performed. Patients were divided into 2 sub-populations; below 60 years (younger patients) and 75 years old and above (older patients). PSA levels, diagnostic modalities, Gleason score and therapeutic options were analysed for both and compared using bivariate analysis. 152 patients were <60 years and 210 were ${\geq}75$ years. There was no statistical difference in mean PSA level (797.9ng/mL vs 345.3 ng/mL, respectively; p>0.05) and diagnosis was made by biopsy in majority of patients in both groups (68.2% and 71.6% in younger and older groups respectively). Most presented with an advanced disease stage (65.1% and 66.0%, respectively) and there was no statistically significant difference in mean Gleason scores f (8.1 vs 7.7; p>0.05). Primary androgen deprivation therapy (PADT) was the main treatment for overall patients (48.0% and 50.7%, respectively). Radiotherapy and radical prostatectomy are the main therapeutic modalities for younger patients with local and locally advanced disease (39.6% and 35.4% respectively), while the majority of older patients with the same disease stage were treated with radiotherapy and PADT (45.8% and 39.0% respectively). Differences observed in treatment modalities were statistically significant (p<0.0003). We conclude that there is no difference in disease clinical aggressiveness of the two groups but significant differences were observed in therapeutic strategies utilised with younger and older patients.