• Title/Summary/Keyword: Hematology

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Skin Graft-versus-host Disease Following Autologous Stem Cell Transplantation for Multiple Myeloma

  • Lee, Sung-Eun;Yoon, Jae-Ho;Shin, Seung-Hwan;Park, Gyeongsin;Min, Chang-Ki
    • IMMUNE NETWORK
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    • v.13 no.3
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    • pp.107-110
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    • 2013
  • Graft-versus-host disease (GVHD) is a common complication of allogeneic stem cell transplantation (allo-SCT). However, a similar syndrome has been reported in autologous stem cell transplantation (ASCT) as well. The target organs of GVHD in ASCT are the skin, liver and gastrointestinal (GI) tract, which are consistent with those in allo-SCT. Histologic findings from the skin and the mucosa of the GI tract also show similar features. Here we describe a case of autologous GVHD involving the skin of a patient who underwent ASCT for multiple myeloma. In this patient, the response to a total prednisone dose of 0.5 mg/kg/day was unsatisfactory, and the patient required more intensive and prolonged immunosuppressive therapy with slow tapering.

Prevention of Lung Cancer: Future Perspective with Natural Compounds

  • Brandes, Johann C.;Amin, A.R.M. Ruhul;Khuri, Fadlo;Shin, Dong-Moon
    • Tuberculosis and Respiratory Diseases
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    • v.69 no.1
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    • pp.1-15
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    • 2010
  • Lung cancer remains the most common cause of cancer death in the United States and worldwide. About 80~90% of cases are smoking-related and smoking cessation programs are of great importance in reducing lung cancer risk. However, the lifetime risk for lung cancer remains elevated even in ex-smokers. Chemoprevention holds the promise to further reduce this risk and thus to decrease lung cancer incidence and mortality. Over the last decades, most chemoprevention trials for lung cancer have yielded negative outcomes. Population-based studies suggest that high intake of certain foods such as soy, red wine or green vegetables may be associated with decreased cancer risk. Because of these observations and their general safety, a plethora of natural compounds is currently being studied for the chemoprevention of cancer. In this review we discuss promising in vitro and in vivo data of novel natural compounds, their interference with molecular mechanisms responsible for lung cancer development and potential implications for their further preclinical and clinical investigation.

Application of a Commercial Diff-Quick Kit for Fish Hematology (어류 혈액 염색에 Diff-Quick kit의 적용 가능성 검토)

  • Park, Seong-U;Kim, Dong-Wan;Choe, Min-Sun
    • Journal of fish pathology
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    • v.17 no.2
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    • pp.151-157
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    • 2004
  • Application of a commercial Diff-Quick kit for fish hematology was evaluated. Diff-Quick stain was incomplete in staining not only the nucleus and cytoplasm but also granules of leucocytes that were stained in soluton I and II for five seconds. However, when the staining time changed to 5 seconds in solution I and 10 seconds in solution II, followed by washing with deionized distilled water, the kit showed the similar results as in May-Grunwald Giemsa stain. The results indicate that the kit can be used in fish hematology for rapid staining.

Human selenium binding protein-1 (hSP56) is a negative regulator of HIF-1α and suppresses the malignant characteristics of prostate cancer cells

  • Jeong, Jee-Yeong;Zhou, Jin-Rong;Gao, Chong;Feldman, Laurie;Sytkowski, Arthur J.
    • BMB Reports
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    • v.47 no.7
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    • pp.411-416
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    • 2014
  • In the present study, we demonstrate that ectopic expression of 56-kDa human selenium binding protein-1 (hSP56) in PC-3 cells that do not normally express hSP56 results in a marked inhibition of cell growth in vitro and in vivo. Down-regulation of hSP56 in LNCaP cells that normally express hSP56 results in enhanced anchorage-independent growth. PC-3 cells expressing hSP56 exhibit a significant reduction of hypoxia inducible protein (HIF)-$1{\alpha}$ protein levels under hypoxic conditions without altering HIF-$1{\alpha}$ mRNA (HIF1A) levels. Taken together, our findings strongly suggest that hSP56 plays a critical role in prostate cells by mechanisms including negative regulation of HIF-$1{\alpha}$, thus identifying hSP56 as a candidate anti-oncogene product.

Evaluation of feed types based on growth performance, survival, hematology, and resistance in celebes rainbow (Marosantherina ladigesi)

  • Amrullah;Wahidah;Khusnul Khatimah;Ardiansyah;Eka Rosyida;Imam Taufik
    • Fisheries and Aquatic Sciences
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    • v.26 no.10
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    • pp.583-592
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    • 2023
  • Celebes rainbow (Marosantherina ladigesi) is one of Indonesia's exported ornamental fish commodities, but the exploitation of this fish only relies on wild catches. The rise of unlimited fishing, especially those using poison, has changed the aquatic environment, threatening sustainability and causing fish extinction. This study aimed to evaluate the effectiveness of several types of feed in improving the absolute growth rate (AGR), specific growth rate (SGR), survival rate (SR), feed conversion ratio (FCR), feed efficiency (FE), hematology, and immune response of Celebes rainbow. The fish used in this study were male ornamental Celebes rainbow (M. ladigesi) weighing 1.32 ± 0.21 g/ind, reared in 54 L-aquariums at a stocking density of 30 individuals/aquarium for six weeks. The fish were fed according to the test diet consisting of live Tubifex sp worms, dry Tubifex sp worms, Spirulina platensis, and crumble pellets. The parameters observed were AGR, SGR, SR, FCR, FE, hematology, intestinal histology, liver histology, and a challenge test with the pathogenic bacteria Aeromonas hydrophila. The results showed that fish-fed live Tubifex sp worms had better AGR, SGR, SR, FCR, FE, hematology, and disease resistance compared to all other treatments. These results indicate that live Tubifex sp worms are the best feed for rearing Celebes rainbow.

Diagnostic and therapeutic advances in adults with acute lymphoblastic leukemia in the era of gene analysis and targeted immunotherapy

  • Jae-Ho Yoon;Seok Lee
    • The Korean journal of internal medicine
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    • v.39 no.1
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    • pp.34-56
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    • 2024
  • Acute lymphoblastic leukemia (ALL) is one of the most rapidly changing hematological malignancies with advanced understanding of the genetic landscape, detection methods of minimal residual disease (MRD), and the development of immunotherapeutic agents with good clinical outcomes. The annual incidence of adult ALL in Korea is 300-350 patients per year. The WHO classification of ALL was revised in 2022 to reflect the molecular cytogenetic features and suggest new adverse-risk subgroups, such as Ph-like ALL and ETP-ALL. We continue to use traditional adverse-risk features and cytogenetics, with MRD-directed post-remission therapy including allogeneic hematopoietic cell transplantation. However, with the introduction of novel agents, such as ponatinib, blinatumomab, and inotuzumab ozogamicin incorporated into frontline therapy, good MRD responses have been achieved, and overall survival outcomes are improving. Accordingly, some clinical trials have suggested a possible era of chemotherapy-free or transplantation-free approaches in the near future. Nevertheless, relapse of refractory ALL still occurs, and some poor ALL subtypes, such as Ph-like ALL and ETP-ALL, are unsolved problems for which novel agents and treatment strategies are needed. In this review, we summarize the currently applied diagnostic and therapeutic practices in the era of advanced genetic analysis and targeted immunotherapies in United States and Europe and introduce real-world Korean data.

Combined chemotherapy and intra-arterial chemotherapy of retinoblastoma

  • Choi, Saerom;Han, Jung Woo;Kim, Hyosun;Kim, Beom Sik;Kim, Dong Joon;Lee, Sung Chul;Lyu, Chuhl Joo
    • Clinical and Experimental Pediatrics
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    • v.56 no.6
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    • pp.254-259
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    • 2013
  • Purpose: Retinoblastoma (RB) is the most common primary malignant intraocular tumor in children. Although systemic chemotherapy has been the primary treatment, intra-arterial chemotherapy (IAC) represents a new treatment option. Here, we performed alternate systemic chemotherapy and IAC and retrospectively reviewed the efficacy and safety of this approach. Methods: Patients diagnosed with intraocular RB between January 2000 and December 2011 at Severance Children's Hospital, Yonsei University, were reviewed. Before February 2010, the primary treatment for RB was chemotherapy (non-IAC/CTX). Since February 2010, the primary treatment for RB has been IAC (IAC/CTX). External beam radiotherapy or high-dose chemotherapy were used as "last resort" treatments just prior to enucleation at the time of progression or recurrence during primary treatment. Enucleation-free survival (EFS) and progression-free survival were assessed. Results: We examined 19 patients (median age, 11.9 months; range, 1.4 to 75.6 months) with a sum of 25 eyes, of which, 60.0% were at advanced Reese Ellsworth (RE) stages. The enucleation rate was 33.3% at early RE stages and 81.8% at advanced RE stages (P=0.028). At 36 months, EFS was significantly higher in the IAC/CTX group than in the non-IAC/CTX group (100% vs. 40.0%, P=0.016). All 5 patients treated with IAC achieved eye preservation, although most patients were at advanced RE stages (IV-V). Conclusion: Despite the limitation of a small sample size, our work shows that an alternative combined approach using IAC and CTX may be safe and effective for eye preservation in advanced RB.

Lack of Influence of TP53 Arg72Pro and 16bp Duplication Polymorphisms on Risk of Breast Cancer in Iran

  • Gohari-Lasaki, Sahar;Gharesouran, Jalal;Ghojazadeh, Morteza;Montazeri, Vahid;Ardebili, Seiied Moitaba Mohaddes
    • Asian Pacific Journal of Cancer Prevention
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    • v.16 no.7
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    • pp.2971-2974
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    • 2015
  • TP53 is assumed to be a very important tumour suppressor gene, as illustrated by recent reports that have shown effects of its polymorphisms on breast cancer risk. Arg72Pro and PIN3(16bp duplication) polymorphisms are proposed to have an effective role in structural changes of p53 and have therefore attracted interest as a risk factor for breast cancer in different populations. The aim of this study was to examine and determine whether p53 codon 72 and PIN3 Ins16 bp may be associated with an increased risk for breast cancer in female patients from the northwest of Iran. Genotyping was performed by PCR-RFLP (polymerase chain reaction-restriction fragment length polymorphism) method for a total of 100 women with breast cancer and 100 healthy women without any background of cancer, focusing on the TP53 Arg72Pro-16Del/Ins haplotypes and the combined genotypes. The results in this study established no statistical significant distinctions between the genotypes and a llele frequency were found for Arg72Pro and PIN3 Ins 16 bp polymorphisms between patients and controls.

The rs61764370 Functional Variant in the KRAS Oncogene is Associated with Chronic Myeloid Leukemia Risk in Women

  • Gutierrez-Malacatt, Humberto;Ayala-Sanchez, Manuel;Aquino-Ortega, Xochitl;Dominguez-Rodriguez, Jacqueline;Martinez-Tovar, Adolfo;Olarte-Carrillo, Irma;Martinez-Hernandez, Angelica;Cecilia, Contreras-Cubas C;Orozco, Lorena;Cordova, Emilio J
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.4
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    • pp.2265-2270
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    • 2016
  • Background: Chronic myeloid leukemia (CML) is one of the most frequent hematopoietic malignancies in the elderly population; however, knowledge is limited regarding the genetic factors associated with increased risk for CML. Polymorphisms affecting microRNA (miRNA) biogenesis or mRNA:miRNA interactions are important risk factors in the development of different types of cancer. Thus, we carried out a case-control study to test the association with CML susceptibility of gene variants located in the miRNA machinery genes AGO1 (rs636832) and GEMIN4 (rs2740348), as well as in the miRNA binding sites of the genes BRCA1 (rs799917) and KRAS (rs61764370). Materials and Methods: We determined the genotype of 781 Mexican-Mestizo individuals (469 healthy subjects and 312 CML cases) for the four polymorphisms using TaqMan probes to test the association with CML susceptibility. Results: We found a borderline association of the minor homozygote genotype of the KRAS_rs61764370 polymorphism with an increased risk for CML susceptibility (P = 0.06). After gender stratification, this association was significant only for women (odds ratio [OR] = 13.41, P = 0.04). The distribution of the allelic and genotypic frequencies of the four studied SNPs was neither associated with advanced phases of CML nor treatment response. Conclusions: To the best of our knowledge, this study is the first to show a significant association of the KRAS_rs61764370 SNP with CML. To further determine such an association of with CML susceptibility, our results must be replicated in different ethnic groups.