• Title/Summary/Keyword: Myelocytic leukemia

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Construction of a Protein-Protein Interaction Network for Chronic Myelocytic Leukemia and Pathway Prediction of Molecular Complexes

  • Zhou, Chao;Teng, Wen-Jing;Yang, Jing;Hu, Zhen-Bo;Wang, Cong-Cong;Qin, Bao-Ning;Lv, Qing-Liang;Liu, Ze-Wang;Sun, Chang-Gang
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.13
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    • pp.5325-5330
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    • 2014
  • Background: Chronic myelocytic leukemia is a disease that threatens both adults and children. Great progress has been achieved in treatment but protein-protein interaction networks underlining chronic myelocytic leukemia are less known. Objective: To develop a protein-protein interaction network for chronic myelocytic leukemia based on gene expression and to predict biological pathways underlying molecular complexes in the network. Materials and Methods: Genes involved in chronic myelocytic leukemia were selected from OMIM database. Literature mining was performed by Agilent Literature Search plugin and a protein-protein interaction network of chronic myelocytic leukemia was established by Cytoscape. The molecular complexes in the network were detected by Clusterviz plugin and pathway enrichment of molecular complexes were performed by DAVID online. Results and Discussion: There are seventy-nine chronic myelocytic leukemia genes in the Mendelian Inheritance In Man Database. The protein-protein interaction network of chronic myelocytic leukemia contained 638 nodes, 1830 edges and perhaps 5 molecular complexes. Among them, complex 1 is involved in pathways that are related to cytokine secretion, cytokine-receptor binding, cytokine receptor signaling, while complex 3 is related to biological behavior of tumors which can provide the bioinformatic foundation for further understanding the mechanisms of chronic myelocytic leukemia.

Monitoring the Expression Profiles of Doxorubicin-Resistant Acute Myelocytic Leukemia Cells by DNA Microarray Analysis

  • Song, Ju-Han;Kim, Tae-Sung
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.167.2-168
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    • 2003
  • Anticancer drug resistance occasionally occurs in malignant hematologic diseases such as acute myelocytic leukemia (AML) treated with chemotherapy and is a major problem to complete remission. Malignant cells primarily induce intrinsic resistance to treatment of anticancer drug, but gradually obtain acquired resistance to cytotoxic activities of chemotherapy. In this study, we monitored the expression profiles of doxorubicin resistance-related genes in AML-2/DX100, a doxorubicin-resistant human acute myelocytic leukemia cell line. (omitted)

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Immunological Studies on the Surface Antigens of Tumor Cells (종양세포 표면항원에 대한 분자면역학적 연구)

  • 김한도;김규원
    • The Korean Journal of Zoology
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    • v.32 no.2
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    • pp.142-152
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    • 1989
  • We have produced a new monoclonal antibody detecting common acute lymphoblastic leukemia antigen (CALLA) and designated as KP-22. CALIA detected by KP-22 is expressed on the all of the various cefl lines examined including common ALL. Burkitt's lymphoma, human fibroblasts and cultured normal human fibroblasts. However out of cell lines tested, a fraction of J-ALL and all of myelocytic leukemia and all other nonleukemia cell lines except for fibroblast are CALIA negative. Immunoprecipitation of solubilized 125 I-labeled membrane proteins from cultured human fibroblasts and leukemia cell lines with KP-22 revealed a major polypeptide chain with an apparent molecular weight of approximately 100 Kd and 95 Kd, respectively. Even though a microheterogeneity in terms of molecular weight between two CALLAs, the peptide mapping patterns of them &e identical indicating that such a microheterogeneity seems to be partly due to heterogeneous terminal sialic acid compositions added by a posttranslational modification process.

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Gingival Enlargement Occurred in Acute Leukemia (급성 백혈병에 발생한 치은증식증 1례)

  • Cho, Young-Pill;Lee, Nyoun-Jong;Kim, Bong-Hwan
    • The Journal of the Korean dental association
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    • v.17 no.4 s.119
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    • pp.291-296
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    • 1979
  • This patient, 30 year-old korean male, was admitted with complaints of the gingival enlargement and spontaneous bleeding of the gingival tissue with acute leukemia. In reviewing this case, the following points should have been understood; 1. This is a case of the gingivitis, gingival enlargement, gingival bleeding, so the patient showed the masticatory disturbances. 2. The generalized weakness, petechia in skin, anemia, and hepatomegaly on palpation were seen. 3. With the histopathological examination by means of microscopic views, numerous myelocytic cells, of which their shapes were in irregular, were appeared. 4. The prognosis was poor in spite of any other internal treatments.

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Inhibitory Effect of Curcumin on WT1 Gene Expression in Patient Leukemic Cells

  • Anuchapreeda, Songyot;Limtrakul, Pornngarm;Thanarattanakorn, Pattra;Sittipreechacharn, Somjai;Chanarat, Prasit
    • Archives of Pharmacal Research
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    • v.29 no.1
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    • pp.80-87
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    • 2006
  • Leukemias are common worldwide. Wilms'tumor1 (WT1) protein is highly expressed in leukemic blast cells of myeloid and lymphoid origin. Thus, WT1 mRNA serves as a tumor marker for leukemias detection and monitoring disease progression. Curcumin is well known for its anticancer property. The objective of this study was to investigate the effect of curcumin on WT1 gene expression in patient leukemic cells. The leukemic cells were collected from 70 childhood leukemia patients admitted at Maharaj Nakorn Chiang Mai Hospital, Chiang Mai, Thailand, in the period July 2003 to February 2005. There were 58 cases of acute lymphoblastic leukemia (ALL), 10 cases of acute myeloblastic leukemia (AML), and 2 cases of chronic myelocytic leukemia (CML). There were 41 males and 29 females ranging from 1 to 15 years old. Leukemic cells were cultured in the presence or absence of 10 mM curcumin for 48 h. WT1 mRNA levels were determined by RT-PCR. The result showed that curcumin reduced WT1 gene expression in the cells from 35 patients (50%). It affected the WT1 gene expression in 4 of 8 relapsed cases (50%), 12 of 24 cases of drug maintenance (50%), 7 of 16 cases of completed treatment (44%), and 12 of 22 cases of new patients (54%). The basal expression levels of WT1 gene in leukemic patient cells as compared to that of K562 cells were classified as low level (1-20%) in 6 of 20 cases (30%), medium level (21-60%) in 12 of 21 cases (57%), and high level (61-100%) in 17 of 23 cases (74%). In summary, curcumin decreased WT1 mRNA in patient leukemic cells. Thus, curcumin treatment may provide a lead for clinical treatment in leukemic patients in the future.

Suppression of Phorbol Ester-Induced NF-kB Activation by Capsaicin in Cultured Human Promyelocytic Leukemia Cells

  • Han, Seong-Su;Keum, Young-Sam;Chun, Kyung-Soo;Surh, Young-Joon
    • Archives of Pharmacal Research
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    • v.25 no.4
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    • pp.475-479
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    • 2002
  • Capsaicin, a major pungent constituent of red pepper (Capsicum annuum L.) possesses a vast variety of pharmacologic and physiologic activities. Despite its irritant properties, the compound exerts anti-inflammatory and anti-nociceptive effects. Previous studies from this laboratory revealed that capsaicin, when topically applied onto dorsal skin of female ICR mice, strongly attenuated activation of NF-kB and AP-1 induced by the typical tumor promoter, 12-O-tetradecanoylphorbol-13-acetate (TPA), which may account for its anti-tumor promoting activity in mouse skin. In the present work, we have found that capsaicin suppresses TPA-stimulated activation of NF-kB through inhibition of $IkB{\alpha}$ degradation and blockade of subsequent nuclear translocation of p65 in human pro myelocytic leukemia HL-60 cells. Methylation of the phenolic hydroxyl group of capsaicin abolished its inhibitory effect on NF-kB DNA binding. Likewise, TPA-induced activation of AP-1 was mitigated by capsaicin treatment.

A Case of a 16-Year-Old Patient With Chronic Invasive Aspergillosis in the Trachea Treated With Segmental Tracheal Resection and Cricotracheal Anastomosis

  • Heo, Yujin;Choi, Nayeon;Yoo, Keon Hee;Chung, Man Ki
    • Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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    • v.33 no.1
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    • pp.42-44
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    • 2022
  • Chronic invasive aspergillosis is a life-threatening disease, especially in immunocompromised patients. The diagnosis and treatment of tracheal aspergillosis (TA) are challenging because of its rarity and nonspecific clinical presentations. The treatment standard of TA has been medical treatment like other forms of invasive aspergillosis, but patients with medically resistant TA require surgical intervention. We demonstrated a successful surgical outcome of chronic invasive TA in a 16-year-old patient with immunocompromised status related to acute myelocytic leukemia.

Study of Acute Myelocytic Leukemia Patient Treatment That Used Total Skin Electron Beam (Total Skin Electron Beam을 이용한 급성 골수성 백혈병 환자 치료에 대한 연구)

  • Lee, Sang-Ryul;Kang, Min-Kyu;Kim, Sung-Kyu
    • Progress in Medical Physics
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    • v.20 no.3
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    • pp.152-158
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    • 2009
  • Total Skin Electron Beam Therapy (TSEBT) of linear accelerator has become use so as to be useful, 2~9 MeV of energy territories came to be used with mycosis fungoides and cutaneous lymphomas in the superficial lesion treatment which covers the major portion of the body. I treat a patient to Stanford technique in this study, and it is $60^{\circ}$ around the patients whom Stanford technique irradiated electronic beam to a linear accelerator in horizontal directions and there is a way a standard of TSEBT treat it to six located field (anterior, posterior, and four obliques) becoming. An each field does horizontally it and consist to beam of the two component which fitted the center to a suitable angle. a patient treats it to three dual field a day in order to make short treatment time. when a first day, we treat one dual field at anterior position and two dual field at posterior position. when the second day, treat one dual field at posterior position and two dual field at anterior position. Therefore, six dual field is finished in perfect periodic two days. we made cylindrical acrylic phantom, and I inserted a dosimeter film between phantom. in order to measure a dose distribution calculation before treat a patient, and a patient checked it in six field directions that got from a treatment. It is after that thermoluminescent dosimetry (TLD) as it uses Rando phantom and then measurement dose distribution in six field directions after attaching at chest, the right and left flank, a back after irradiation.

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