• Title/Summary/Keyword: Cancer Immunotherapy

Search Result 238, Processing Time 0.022 seconds

The Role of Uteroglobin in the Immunomodulation of Nonsmall Cell Lung Cancer Cells (비소세포 폐암세포에서 Uteroglobin의 면역 조절 기능에 대한 연구)

  • Yoon, Jung Min;Lim, Jae-Jun;Yoo, Chul-Gyu;Lee, Choon-Taek;Han, Sung Koo;Shim, Young-Soo;Kim, Young Whan
    • Tuberculosis and Respiratory Diseases
    • /
    • v.57 no.4
    • /
    • pp.336-344
    • /
    • 2004
  • Background : Immunotherapy for cancer has not been successful because of several obstacles in tumor and its environment. Inappropriate secretions of cytokines and growth factors by tumors cause substantial changes in the immune responses against tumors, affording the tumors some degree of protection from immune attack. Uteroglobin (UG, Clara cell secretory protein) has been known to have anti-inflammatory, immunomodulatory and anti-cancer activities. However, in lung cancer cells, UG expression is decreased. This study investigated the role of UG in the immunomodulation of lung cancer. Methods : The UG protein was overexpressed by Adenovirus(Ad)-UG transduction in non-small cell lung cancer cell lines. The concentration of Prostaglandin $E_2$ ($PGE_2$) was measured by Enzyme Immunoassay (EIA). Peripheral blood mononuclear cells (PBMC) from whole blood were prepared with Ficoll. PBMC were cultured in RPMI 1640, supernatant of A549, or A549 with UG or NS-398. Concentration of Th 1 type and Th 2 type cytokines from PBMC were measured by ELISA. Results : UG suppressed $PGE_2$, Cyclooxygenase-2 (COX-2) product. Both Th1 type such as Interleukin-2 (IL-2), Interferon-${\gamma}$ (IFN-${\gamma}$) and Tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$) and Th2 type cytokines such as IL-10 and Tumor growth factor-${\beta}$ (TGF-${\beta}$) were increased when PBMC were cultured with supernatant of non small lung cancer cells. UG and COX-2 inhibitor, NS-398 induced normal immune response of PBMC. Although Th 1 type cytokines were increased, Th 2 type cytokines were reduced by UG. Conclusion : UG suppressed PGE2, COX-2 product. Supernatant of NSCLC induced imbalance of immune response of PBMC. However, UG reversed this imbalance. These results suggest that UG may be used in the development of immunotherapy for lung cancer.

CELL-MEDIATED IMMUNE PROCESSES AND CONTROL OF CANCER

  • Lee, Kwon-Soon;Chung, Hyeng-Hwan
    • Proceedings of the KOSOMBE Conference
    • /
    • v.1991 no.05
    • /
    • pp.82-85
    • /
    • 1991
  • Cell kinetics and the chemical mass action principle formulate the basis of immune system dynamics which may be synthesized mathematically as cascades of bilinear systems which are connected by nonlinear nondynamical terms. In this manner, a model for cell-mediated immune response (CMI) to tumor antigens and debris is developed. We also consider parametric control variables relevant to the latest experimental data, i.e., sigmoidal dose-response relationship and Michaelis-Menten dynamics. The preliminary results show that the parametric control variable is important in the destruction of tumors. As well as that, the exacerbation theory is a good method for tumor treatment. Finally, tumor control as an application of immunotherapy is analyzed from the basis established above.

  • PDF

Oncolytic Vaccinia Virus Expressing 4-1BBL Inhibits Tumor Growth by Increasing CD8+ T Cells in B16F10 Tumor Model

  • Lee, Na-Kyung;Kim, Hong-Sung
    • Biomedical Science Letters
    • /
    • v.18 no.3
    • /
    • pp.210-217
    • /
    • 2012
  • Oncolytic viral vectors have shown good candidates for cancer treatment but have many limitations. To improve the therapeutic potential of oncolytic vaccinia virus, we developed a recombinant vaccinia virus expressing the 4-1BBL co-stimulatory molecule or CCL21. 4-1BBL and CCL21 expression was identified by FACS analysis and immunoblotting. rV-4-1BBL vaccination shows significant tumor regression compared to rV-LacZ, but rV-CCL21 shows rapid tumor growth compared to rV-LacZ in the poorly immunogenic B16 murine melanoma model. 4-1BBL expression resulted in the increase of the number of CD8+ T cells and especially the increase of effector (CD62L-CD44+) CD8+ T cells. These data suggest 4-1BBL may be the potential target for enhancement of tumor immunotherapy.

Alpha-emitting Radioisotopes Production for Radioimmunotherapy (방사면역치료를 위한 알파 방출 방사성 동위원소 생산)

  • Chun, Kwon-Soo
    • Nuclear Medicine and Molecular Imaging
    • /
    • v.41 no.1
    • /
    • pp.1-8
    • /
    • 2007
  • This review discusses the production of alpha-particle-emitting radionuclides in radioimmunotherapy. Radioimmunotherapy labeled with alpha-particle is expected to be very useful for the treatment of monocellular cancer (e.g. leukemia) and micrometastasis at an early stage, residual tumor remained in tissues after chemotherapy and tumor resection, due to the high linear energy transfer (LET) and the short path length in biological tissue of alpha particle. Despite of the expected effectiveness of alpha-particle in radioimmunotherapy, its clinical research has not been activated by the several reasons, shortage of a suitable a-particle development and a reliable radionuclide production and supply system, appropriate antibody and chelator development. Among them, the establishment of radionuclide development and supply system is a key factor to make an alpha-immunotherapy more popular in clinical trial. Alpha-emitter can be produced by several methods, natural radionuclides, reactor irradiation, cyclotron irradiation, generator system and elution. Due to the sharply increasing demand of $^{213}Bi$, which is a most promising radionuclide in radioimmunotherapy and now has been produced with reactor, the cyclotron production system should be developed urgently to meet the demand.

The Physical Therapy Approaches on Post-Mastectomy (유방절제술 후 물리치료적 접근)

  • Jeon, You-Jin
    • Journal of Korean Physical Therapy Science
    • /
    • v.7 no.2
    • /
    • pp.439-457
    • /
    • 2000
  • The causes, risk factors and sequelae of mastectomy were studied, and the physical therapy approaches on post-mastectomy was discussed in this study. It was found that the patients taken mastectomy have experienced pins and needles in muscle, weakening of muscle, pains, deterioration of motion in joint region and activities of daily living, psychiatric sequelae, and etc even after the conservertive therapies like the chemical therapy, radiotherapy, immunotherapy, and hormone therapy. However, few study on the physical therapy approaches for patients with breast cancer has been carried in Korea at present. The followings were proposed as the physical therapy approaches. 1. Shoulder joint motion approach to relax the limit of range of motion 2. Control of breathing exercise for dealing with removal of the pectorailis muscle 3. Method to reduce the edema of arms for tackling the cut of lymph node 4. Method to reduce pains, pins and needles 5. Support home exercise program after discharging from hospital, sexual life and pregnancy, and activities of daily living training method.

  • PDF

A Study on statistical inference on IL-2 titer (IL-2 역가의 통계적 추정에 관한 연구)

  • 박래현;박석영;이석훈
    • The Korean Journal of Applied Statistics
    • /
    • v.2 no.2
    • /
    • pp.27-35
    • /
    • 1989
  • This article deals with statistical inference on Interleukin-2 titer of which the clinical applications to cancer immunotherapy and some immunodeficiency diseases have been widely tried. A Linear model and the Bayesian approach are used to explain the bioassay which performs the measurements of IL-2 activity from an patient and an inference procedure including confidence intervals for the IL-2 titer of the patient through comparision with the Standard IL-2 is suggested and a real case of example is illustrated.

  • PDF

Immunomodulatory Function of Murine NK Cell Activity by Alginate

  • Son Eun-Wha;Yang Kwang-Hee;Rhee Dong-Kwon;Pyo Suhkneung
    • Archives of Pharmacal Research
    • /
    • v.28 no.11
    • /
    • pp.1282-1286
    • /
    • 2005
  • The in vivo immunomodulatory function of the activity of murine natural killer (NK) cells induced by high mannuronic acid-containing alginate (HMA) was examined. HMA was injected i.p at doses of 25 and 100 mg/kg. The NK activity was 3 times higher with 100 mg/kg HMA than the baseline. In addition, in vitro studies of splenocytes cultured with HMA for 20 h showed a significant increase in NK activity at E:T ratio of 100: 1; a 160$\%$ and 210$\%$ increase at 10 and 100 $\mu$g/mL, respectively. There was a six fold increase in interferon-$\gamma$ production in a postculture of splenocytes with 100 $\mu$g/mL HMA. HMA had no suppressive effects on the lymphocyte function in the presence or absence of mitogens. This suggests that HMA is useful in cancer immunotherapy.

Osteonecrosis of the jaw in the era of targeted therapy and immunotherapy in oncology

  • Nifosi, Antonio Fabrizio;Zuccarello, Mariateresa;Nifosi, Lorenzo;Saus, Vanessa Hervas;Nifosi, Gianfilippo
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • v.45 no.1
    • /
    • pp.3-8
    • /
    • 2019
  • Osteonecrosis of the jaw (ONJ) is a well-known pathological condition in oncology derived from the use of bisphosphonates (BPs) and denosumab. Many molecular and immunological targets have been introduced for daily use in cancer treatment in recent years; consequently, new cases of ONJ have been reported in association with these drugs, especially if administered with BPs and denosumab. When the drugs are administered alone, ONJ is rarely seen. The objective of our study was to analyze the recent literature relative to the association of ONJ with these new drugs highlighting the pathogenic, clinical and therapeutic aspects. The close collaboration between maxillofacial surgeon, oncologist, dentist, and dental hygienist remains the most important aspect for the prevention, prompt recognition, and treatment of this pathology.

Emerging Mechanisms of Cyr61/CTGF/NOV Secretion in the Nervous System

  • Yang, Hayoung;Park, Young-Jun;Shim, Sungbo
    • Biomedical Science Letters
    • /
    • v.28 no.2
    • /
    • pp.59-66
    • /
    • 2022
  • The Cyr61/CTGF/NOV (CCN) family is dynamically expressed in various tissues, including the nervous system, from the prenatal period to adulthood. However, major studies have been conducted only in limited fields, such as the cardiovascular and muscular systems, skeletal development, and cancer. In addition, although the CCN family is a secretory protein, very few studies have described its mechanism of secretion. Recently, it has been suggested that overexpression of CCN3 or intracellular accumulation due to problems in the secretory pathway can inhibit neuronal axonal growth. In this review, we have briefly summarized the structure and characteristics of the CCN family and its related diseases, with particular emphasis on the secretory mechanism and modifiers of the CCN family, newly identified in the nervous system.

Intravesical bacillus Calmette-Guérin-induced myopathy presenting as rhabdomyolysis: a case report

  • Chae Hun Lee;Byeong Joo Choi;Jung Hun Kim;Tae Woong Yang;Gi Jeong Kim;Ha Young Shin;Se Hoon Kim;Seung Woo Kim
    • Journal of Yeungnam Medical Science
    • /
    • v.40 no.4
    • /
    • pp.430-434
    • /
    • 2023
  • Intravesical bacillus Calmette-Guérin (BCG) instillation is an adjuvant treatment for non-muscle-invasive urinary bladder cancer. Although most complications associated with BCG immunotherapy are mild and self-limiting, rare albeit serious complications have been reported. Only a few cases of BCG-related rhabdomyolysis have been reported. In this study, we present the case of a 72-year-old woman who developed severe weakness and hyperCKemia following intravesical BCG instillation. A muscle biopsy was performed, and a diagnosis of drug-induced myopathy was made.