• Title/Summary/Keyword: Therapeutic Park

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Therapeutic effect of a TM4SF5-specific peptide vaccine against colon cancer in a mouse model

  • Kwon, Sanghoon;Kim, Young-Eun;Park, Jeong-A;Kim, Doo-Sik;Kwon, Hyung-Joo;Lee, Younghee
    • BMB Reports
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    • v.47 no.4
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    • pp.215-220
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    • 2014
  • Molecular-targeted therapy has gained attention because of its high efficacy and weak side effects. Previously, we confirmed that transmembrane 4 superfamily member 5 protein (TM4SF5) can serve as a molecular target to prevent or treat hepatocellular carcinoma (HCC). We recently extended the application of the peptide vaccine, composed of CpG-DNA, liposome complex, and TM4SF5 peptide, to prevent colon cancer in a mouse model. Here, we first implanted mice with mouse colon cancer cells and then checked therapeutic effects of the vaccine against tumor growth. Immunization with the peptide vaccine resulted in robust production of TM4SF5-specific antibodies, alleviated tumor growth, and reduced survival rate of the tumor-bearing mice. We also found that serum levels of VEGF were markedly reduced in the mice immunized with the peptide vaccine. Therefore, we suggest that the TM4SF5-specific peptide vaccine has a therapeutic effect against colon cancer in a mouse model.

The Evaluation of Multiplane-Parallel Chamber Using Crystal Plate as Ionization Medium for Therapeutic Radiation Beams

  • Young W. Vahc;Park, Kyung R.;Kim, Sookil;Chul W. Joh;Kim, Tae H.
    • Progress in Medical Physics
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    • v.9 no.1
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    • pp.29-35
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    • 1998
  • There has been necessity of an air free ionization chamber using the gold-crystal-aluminium plates, henceforth called the crystal chamber. The crystal chamber formed of parallel plates is very small in size and has more response for absorbed dose of therapeutic radiation beams. The gold plate on the crystal facing the photon and electron beam acts as an intensifier of signals and crystal plate as an ionization medium respectively. Both the copper guard ring and the aluminum collecting electrode are connected to an electrometer. Using high energy photon (6, 15 MV) and electron (9, 12, 15, 18 MeV) beams, the responses of the crystal chamber are evaluated against a PTW Farmer-type chamber at a field size of 10${\times}$10cm$^2$ and 100 cm SSD. The responses of crystal chamber for therapeutic radiation electron and photon beams are greater in magnitude by several order than Farmer. The crystal chamber has good linearity without correction factor C$\_$t,p/ with respect to the signals, a reading reproduction with good accuracy and precision less than 0.5%, and has other useful functions in measuring radiation beams.

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Usage of Human Mesenchymal Stem Cells in Cell-based Therapy: Advantages and Disadvantages

  • Kim, Hee Jung;Park, Jeong-Soo
    • Development and Reproduction
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    • v.21 no.1
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    • pp.1-10
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    • 2017
  • The use of human mesenchymal stem cells (hMSCs) in cell-based therapy has attracted extensive interest in the field of regenerative medicine, and it shows applications to numerous incurable diseases. hMSCs show several superior properties for therapeutic use compared to other types of stem cells. Different cell types are discussed in terms of their advantages and disadvantages, with focus on the characteristics of hMSCs. hMSCs can proliferate readily and produce differentiated cells that can substitute for the targeted affected tissue. To maximize the therapeutic effects of hMSCs, a substantial number of these cells are essential, requiring extensive ex vivo cell expansion. However, hMSCs have a limited lifespan in an in vitro culture condition. The senescence of hMSCs is a double-edged sword from the viewpoint of clinical applications. Although their limited cell proliferation potency protects them from malignant transformation after transplantation, senescence can alter various cell functions including proliferation, differentiation, and migration, that are essential for their therapeutic efficacy. Numerous trials to overcome the limited lifespan of mesenchymal stem cells are discussed.

Studies on application of Cimicifuga heracleifolia blended Prescriptions from Donguibogam (동의보감(東醫寶鑑) 중(中) 승마(升麻)가 배오(配伍)된 방제(方劑)의 활용(活用)에 대한 고찰(考察))

  • Park Sang-Nam;Kook Yoon-Bum;Lee Jang-Chun;Yun Young-Gab
    • Herbal Formula Science
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    • v.10 no.2
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    • pp.5-46
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    • 2002
  • This report describes the studies as follows through the research into the data of Cimicifuga heraclefolia Komarov blended prescriptions from Donguibogam. Cimicifuga heracleifola Komarov blended prescriptions are utilized for 39 therapeutic ranges. such as in dentistry, onclology, and 16 therapeutic ranges occupy over 84% totally, from dentistry to nasal disease. Cimicifuga heracleifola Komarov blended prescriptions use in the symptpms resulting from dentistry, intestine, internal disease, and they are used 22 disease also. The main pathologies of Cimicifuga heracleifola Komarov blended prescriptions found weakness in the digestive system, heat of stomach, wind of stomach in the splanchnology, and pathologies of wind-heat, wind-moisture, cold, excluding they are using for energy-blood, weakness, internal disease. The actual amount of Cimicifuga heracleifola Komarov blended has a wide capacity from 2 pun to 5 don, 1 don is broadlly used by 26%. Through the research into the main factors that we know Cimicifuga heracleifola Komarov blended prescriptions are listed in Yangmyungkyung, as they are regularly used as disease treatment and increasing the level of the general energy of the body, relaxing a skin, increasing stamina, detoxication, eliminating tumor, widely.

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Recent advances in stem cell therapeutics and tissue engineering strategies

  • Kwon, Seong Gyu;Kwon, Yang Woo;Lee, Tae Wook;Park, Gyu Tae;Kim, Jae Ho
    • Biomaterials Research
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    • v.22 no.4
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    • pp.311-318
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    • 2018
  • Background: Tissue regeneration includes delivering specific types of cells or cell products to injured tissues or organs for restoration of tissue and organ function. Stem cell therapy has drawn considerable attention since transplantation of stem cells can overcome the limitations of autologous transplantation of patient's tissues; however, it is not perfect for treating diseases. To overcome the hurdles associated with stem cell therapy, tissue engineering techniques have been developed. Development of stem cell technology in combination with tissue engineering has opened new ways of producing engineered tissue substitutes. Several studies have shown that this combination of tissue engineering and stem cell technologies enhances cell viability, differentiation, and therapeutic efficacy of transplanted stem cells. Main body: Stem cells that can be used for tissue regeneration include mesenchymal stem cells, embryonic stem cells, and induced pluripotent stem cells. Transplantation of stem cells alone into injured tissues exhibited low therapeutic efficacy due to poor viability and diminished regenerative activity of transplanted cells. In this review, we will discuss the progress of biomedical engineering, including scaffolds, biomaterials, and tissue engineering techniques to overcome the low therapeutic efficacy of stem cells and to treat human diseases. Conclusion: The combination of stem cell and tissue engineering techniques overcomes the limitations of stem cells in therapy of human diseases, and presents a new path toward regeneration of injured tissues.

Immediate Effects of Combined Stretching Exercise and Therapeutic Ultrasound on the Muscles Around the Neck in Tension-type Headache Patients (치료적 초음파를 결합한 뻗침운동이 긴장성 두통 환자의 목주변 근육에 미치는 즉각적인 효과)

  • Heo, Jae-Won;Park, Sam-Heon
    • Journal of muscle and joint health
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    • v.29 no.1
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    • pp.11-17
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    • 2022
  • Purpose: This study aimed to provide objective and basic data for an effective treatment method by examining changes in the mechanical properties of muscles and the degree of tenderness when a combination of stretching exercise and ultrasound therapy is applied to patients with tension headaches. Methods: The participants were classified into two groups based on the intervention received: the therapeutic ultrasound combined with suboccipital stretching (n=15, experimental group) and infrared combined with suboccipital stretching (n=15, control group) groups. The intragroup differences in mechanical muscle properties and modified total tenderness score were compared and analyzed. Results: The comparison and analyses of the changes in muscle tone and stiffness revealed statistically significant intragroup decreases in the upper trapezius and suboccipitalis in the experimental group. Similarly, the comparison and analyses of the changes in muscle stiffness revealed statistically significant intragroup decreases in the upper trapezius in the control group. Conclusion: Therapeutic ultrasound combined with suboccipitalis stretching effectively increased the flexibility of the muscles around the cervical vertebrae and reduced muscle tension and stiffness in tension-type headache patients

Current Status and Future Direction of Immunotherapy in Hepatocellular Carcinoma: What Do the Data Suggest?

  • Hye Won Lee;Kyung Joo Cho;Jun Yong Park
    • IMMUNE NETWORK
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    • v.20 no.1
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    • pp.11.1-11.14
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    • 2020
  • Most patients with hepatocellular carcinoma (HCC) are diagnosed at an advanced stage of disease. Until recently, systemic treatment options that showed survival benefits in HCC have been limited to tyrosine kinase inhibitors, antibodies targeting oncogenic signaling pathways or VEGF receptors. The HCC tumor microenvironment is characterized by a dysfunction of the immune system through multiple mechanisms, including accumulation of various immunosuppressive factors, recruitment of regulatory T cells and myeloid-derived suppressor cells, and induction of T cell exhaustion accompanied with the interaction between immune checkpoint ligands and receptors. Immune checkpoint inhibitors (ICIs) have been interfered this interaction and have altered therapeutic landscape of multiple cancer types including HCC. In this review, we discuss the use of anti-PD-1, anti-PD-L1, and anti-CTLA-4 antibodies in the treatment of advanced HCC. However, ICIs as a single agent do not benefit a significant portion of patients. Therefore, various clinical trials are exploring possible synergistic effects of combinations of different ICIs (anti-PD-1/PD-L1 and anti-CTLA-4 antibodies) or ICIs and target agents. Combinations of ICIs with locoregional therapies may also improve therapeutic responses.

AMD3100 improves ovariectomy-induced osteoporosis in mice by facilitating mobilization of hematopoietic stem/progenitor cells

  • Im, Jin Young;Min, Woo-Kie;Park, Min Hee;Kim, NamOh;Lee, Jong Kil;Jin, Hee Kyung;Choi, Je-Yong;Kim, Shin-Yoon;Bae, Jae-Sung
    • BMB Reports
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    • v.47 no.8
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    • pp.439-444
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    • 2014
  • Inhibition of an increase of osteoclasts has become the most important treatment for osteoporosis. The CXCR4 antagonist, AMD3100, plays an important role in the mobilization of osteoclast precursors within bone marrow (BM). However, the actual therapeutic impact of AMD3100 in osteoporosis has not yet been ascertained. Here we demonstrate the therapeutic effect of AMD3100 in the treatment of ovariectomy-induced osteoporosis in mice. We found that treatment with AMD3100 resulted in direct induction of release of SDF-1 from BM to blood and mobilization of hematopoietic stem/progenitor cells (HSPCs) in an osteoporosis model. AMD3100 prevented bone density loss after ovariectomy by mobilization of HSPCs, suggesting a therapeutic strategy to reduce the number of osteoclasts on bone surfaces. These findings support the hypothesis that treatment with AMD3100 can result in efficient mobilization of HSPCs into blood through direct blockade of the SDF-1/CXCR4 interaction in BM and can be considered as a potential new therapeutic intervention for osteoporosis.

Structuration of literatherapy transition (문학치료 전이의 구조화)

  • Park, In-Kwa
    • The Journal of the Convergence on Culture Technology
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    • v.1 no.2
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    • pp.21-36
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    • 2015
  • This study is a descriptive study to examine how poem causes effects of literary treatment for the contemporary people and how to improve therapeutic effect with poem by illustrating the process of therapeutic effect by poem. Each poem in the poetry book has a well-organized flow. While those poems are mixed, it can be synapsed into the cognitive system of readers by their taste in the form of introduction, development, turn, and conclusion.' The poetry book is structured with the transition of literary treatment. Such transition structure is embodied in a circle. If poetic contents are positive and creative in such transitive structure, it gives more comfort and excitement to readers increasing therapeutic effect. Therefore, it is very important to progress literatherapy narrative with such creative works.

Percutaneous Radiofrequency Facet Rhizotomy for Cervical Dorsal Ramus Syndrome

  • Cho, Tack-Geun;Hwang, Sung-Nam;Park, Seung-Won;Nam, Taek-Kyun;Hong, Hyun-Jong;Kim, Young-Baeg
    • Journal of Korean Neurosurgical Society
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    • v.40 no.6
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    • pp.419-422
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    • 2006
  • Objective : Radiofrequency facet rhizotomy[RFFR] has been widely performed for treatment of chronic neck pain caused by cervical dorsal ramus syndrome[CDRS]. To evaluate the therapeutic effectiveness of RFFR in the patients with CDRS, we analyzed patients with various cervical pathologic conditions. Methods : The therapeutic results in forty-four patients who underwent RFFR for CDRS from January, 2000 to December, 2002 were analyzed according to the underlying pathologic conditions causing CDRS. The pathologic conditions were sprain [33 cases], herniated nucleus pulposus [6], foraminal stenosis [4], and compression fracture [1]. The therapeutic results were evaluated one month after the operation and graded as excellent, good, fair of poor. Treatments were considered successful if the therapeutic results were graded as either excellent of good. Results : The overall success rate in all patients was 72.7%. The success fate for treatment of cases with cervical sprain was 87.9%, but treatment of cases with herniated nucleus pulposus, foraminal stenosis, and fracture showed unsatisfactory results [mean success rate was 27.3%]. Some patients complained of transient hypesthesia [4 cases] of transient dull pain at the electrode insertion sites [2 cases]. Conclusion : RFFR is an effective and safe treatment for CDRS caused by cervical sprain, regardless of the patient's age, the duration of the symptoms, and the presence of radiating pain.