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Acute promyelocytic leukemia

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https://www.readbyqxmd.com/read/29655701/apoptosis-and-pro-death-autophagy-induced-by-a-spirostanol-saponin-isolated-from-rohdea-chinensis-baker-n-tanaka-synonym-tupistra-chinensis-baker-on-hl-60-cells
#1
Xiaomin Yi, Limin Xiang, Yuying Huang, Yihai Wang, Xiangjiu He
BACKGROUND: Our previous study has revealed that the spirostanol saponins isolated from the rhizomes of Rohdea chinensis (Baker) N. Tanaka (synonym Tupistra chinensis Baker) (Convallariaceae) (a reputed folk medicine) exhibited potent antiproliferative activity. However, the underlying mechanism of purified saponins remains unclear. More studies are necessary to assess the apoptosis and autophagy activities of the saponins from R. chinensis and clarify their antiproliferative mechanisms...
March 15, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29653010/-transformation-from-promyelocytic-leukemia-with-t-15-17-q22-q21-to-acute-monocytic-leukemia-with-t-11-17-q23-q21-in-a-case
#2
Zheng Wang, Ye Li, Hui Dang, Yan Shi, Qi He, Lin Feng, Li Bao, Yazhen Qin, Yanrong Liu, Xiaojun Huang, Yueyun Lai
OBJECTIVE: To report on a case of therapy-related acute monocytic leukemia(t-AML) with t(11;17) (q23;q21)/MLL-AF17q after successful treatment for acute promyelocytic leukemia(APL) with t(15;17) (q22;q21)/PML-RARα. METHODS: A MICM method (bone marrow morphology(M), immunophenotype(I), cytogenetics(C), and molecular biology(M)) was used for the diagnosis and classification of the disease at the time of onset and transformation. RESULTS: The patient was initially identified with typical morphology and immunophenotype of APL...
April 10, 2018: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/29650946/a-rare-case-of-relapsed-pediatric-acute-promyelocytic-leukemia-with-skin-involvement-by-myeloid-sarcoma
#3
Nathalia Silva Araújo, Claudio José Dos Santos Júnior, Vitória Mikaelly da Silva Gomes, Luiz Arthur Calheiros Leite, Luana Novaes Bomfim, Amanda Katielly Firmino da Silva Gusmão, Maria Jordana Rocha Gomes Alves, Cyndi Myrelle da Silva Barros Romão, Arthur Moacir Costa Sampaio Batinga, Maria Rosa da Silva, Célio Fernando de Sousa Rodrigues
BACKGROUND Acute promyelocytic leukemia (APL) is a very rare leukemia in children. Extramedullary involvement by APL has been reported in between 3-5% of cases, mainly associated with cases of relapse. A rare case of relapse of APL in a 9-year-old child is presented with skin involvement with myeloid sarcoma. CASE REPORT A 9-year-old male child was admitted to the Oncology Service of the hospital complaining of fever, progressive fatigue, oral petechiae with severe bleeding in the oral cavity. Bone marrow examination showed some promyelocytes...
April 13, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29629493/double-sided-personality-effects-of-arsenic-trioxide-on-inflammation
#4
REVIEW
Juan Zhang, Yue Zhang, Weiyan Wang, Chunling Li, Zhiyi Zhang
In 1992, arsenic trioxide (As2 O3 , ATO) was demonstrated to be an effective therapeutic agent against acute promyelocytic leukemia (APL), rekindling attention to ATO applications in U.S. Food and Drug Administration clinical trials for the treatment of cancers, such as leukemia, lymphomas, and solid tumors. ATO is a potent chemotherapeutic drug that can also be used to treat other diseases, such as autoimmune diseases, because it affects multiple pathways including apoptosis induction, differentiation stimulation, and proliferation inhibition...
April 9, 2018: Inflammation
https://www.readbyqxmd.com/read/29622892/myeloperoxidase-deficient-acute-promyelocytic-leukemia-report-of-two-cases
#5
Pulkit Rastogi, Saniya Sharma, Sreejesh Sreedharanunni, Prashant Sharma, Man Updesh Singh Sachdeva, Richa Jain, Shano Naseem, Amit Trehan, Neelam Varma
No abstract text is available yet for this article.
April 2018: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/29616847/switching-from-all-trans-retinoic-acid-to-arsenic-trioxide-for-newly-diagnosed-acute-promyelocytic-leukemia
#6
Jun Imagawa
No abstract text is available yet for this article.
April 4, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29616132/a-radioresistant-fraction-of-acute-promyelocytic-leukemia-cells-exhibit-cd38-cell-surface-antigen-and-mrna-expression
#7
Satoru Monzen, Mitsuru Chiba, Tatsuya Ueno, Yuki Morino, Kenji Terada, Hiroki Yamaya, Yoichiro Hosokawa
In the present study, the cell viability and cluster of differentiation (CD)38 mRNA expression were evaluated in radioresistant (Res)-HL60 acute promyelocytic leukemia (APL) cells. Cell viability in Res-HL60 cells was higher compared with wild-type HL60 cells, but did not differ between high and mid/low CD38 antigen expression groups in Res-HL60 cells. A higher expression of CD38 mRNA in Res-HL60 cells was observed, particularly in the CD38high cell subpopulation. Furthermore, the expression of CD38 mRNA was upregulated following exposure to X-irradiation...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29615003/role-of-cytarabine-in-paediatric-acute-promyelocytic-leukemia-treated-with-the-combination-of-all-trans-retinoic-acid-and-arsenic-trioxide-a-randomized-controlled-trial
#8
Li Zhang, Yao Zou, Yumei Chen, Ye Guo, Wenyu Yang, Xiaojuan Chen, Shuchun Wang, Xiaoming Liu, Min Ruan, Jiayuan Zhang, Tianfeng Liu, Fang Liu, Benquan Qi, Wenbin An, Yuanyuan Ren, Lixian Chang, Xiaofan Zhu
BACKGROUND: The combination of all-trans-retinoic acid (ATRA) and arsenic trioxide (ATO) has been suggested to be safe and effective for adult acute promyelocytic leukaemia (APL). As of 2010, the role of cytarabine (Ara-C) in APL was controversial. The aim of this study was to test the efficacy and safety of ATRA and ATO in paediatric APL patients. Also, we assessed whether Ara-C could be omitted in ATO and ATRA- based trials in children. METHODS: We performed a randomized controlled trial in paediatric APL patients (≤14 years of age) in our hospital from May 2010 to December 2016...
April 3, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29610575/arsenic-trioxide-induces-apoptosis-and-the-formation-of-reactive-oxygen-species-in-rat-glioma-cells
#9
Yuanyuan Sun, Chen Wang, Ligang Wang, Zhibo Dai, Kongbin Yang
Background: Arsenic trioxide (As2 O3 ) has a dramatic therapeutic effect on acute promyelocytic leukemia (APL) patients. It can also cause apoptosis in various tumor cells. This study investigated whether As2 O3 has an antitumor effect on glioma and explored the underlying mechanism. Results: MTT and trypan blue assays showed that As2 O3 remarkably inhibited growth of C6 and 9 L glioma cells. Cell viability decreased in glioma cells to a greater extent than in normal glia cells...
2018: Cellular & Molecular Biology Letters
https://www.readbyqxmd.com/read/29602066/new-synergistic-combinations-of-differentiation-inducing-agents-in-the-treatment-of-acute-promyelocytic-leukemia-cells
#10
Amir Amanzadeh, Vahid Molla-Kazemiha, Saeed Samani, Mahdi Habibi-Anbouhi, Kayhan Azadmanesh, Mohsen Abolhassani, Mohammad Ali Shokrgozar
Acute promyelocytic leukemia (APL) was considered to be one of the most lethal forms of leukemia in adults before the introduction of the vitamin A metabolite all-trans retinoic acid (ATRA). Surprisingly, it has been confirmed that FICZ (6-Formylindolo (3, 2-b) carbazole) enhances ATRA-induced differentiation. Moreover, a number of studies have demonstrated that anti CD44 monoclonal antibody (mAb) induces to bring back differentiation blockage the leukemic stem cells. The level of differentiation markers including CD11b and CD11c in NB4 cells was assessed by flow cytometry...
January 17, 2018: Leukemia Research
https://www.readbyqxmd.com/read/29599493/ring-tetramerization-is-required-for-nuclear-body-biogenesis-and-pml-sumoylation
#11
Pengran Wang, Shirine Benhenda, Haiyan Wu, Valérie Lallemand-Breitenbach, Tao Zhen, Florence Jollivet, Laurent Peres, Yuwen Li, Sai-Juan Chen, Zhu Chen, Hugues de Thé, Guoyu Meng
ProMyelocyticLeukemia nuclear bodies (PML NBs) are stress-regulated domains directly implicated in acute promyelocytic leukemia eradication. Most TRIM family members bind ubiquitin E2s and many acquire ligase activity upon RING dimerization. In contrast, PML binds UBC9, the SUMO E2 enzyme. Here, using X-ray crystallography and SAXS characterization, we demonstrate that PML RING tetramerizes through highly conserved PML-specific sequences, which are required for NB assembly and PML sumoylation. Conserved residues implicated in RING dimerization of other TRIMs also contribute to PML tetramer stability...
March 29, 2018: Nature Communications
https://www.readbyqxmd.com/read/29596829/influence-of-apl-therapeutic-drugs-on-nuclear-pore-complex-density-and-integrity
#12
Anna Lång, Alexander Øye, Jens Eriksson, Alexander D Rowe, Emma Lång, Stig Ove Bøe
During cell division, a large number of nuclear proteins are released into the cytoplasm due to nuclear envelope breakdown. Timely nuclear import of these proteins following exit from mitosis is critical for establishment of the G1 nuclear environment. Dysregulation of post-mitotic nuclear import may affect the fate of newly divided stem or progenitor cells and may lead to cancer. Acute promyelocytic leukemia (APL) is a malignant disorder that involves a defect in blood cell differentiation at the promyelocytic stage...
March 26, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29594316/an-integrated-approach-to-elucidate-signaling-pathways-of-dioscin-induced-apoptosis-energy-metabolism-and-differentiation-in-acute-myeloid-leukemia
#13
She-Hung Chan, Pi-Hui Liang, Jih-Hwa Guh
Although the therapeutics have improved the rates of remission and cure of acute myelogenous leukemia (AML) in recent decades, there is still an unmet medical need for AML therapies because disease relapses are a major obstacle in patients who become refractory to salvage therapy. The development of therapeutic agents promoting both cytotoxicity and cell differentiation may provide opportunities to improve the clinical outcome. Dioscin-induced apoptosis in leukemic cells was identified through death receptor-mediated extrinsic apoptosis pathway...
March 28, 2018: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/29590658/effects-of-fifty-hertz-electromagnetic-fields-on-granulocytic-differentiation-of-atra-treated-acute-promyelocytic-leukemia-nb4-cells
#14
Alfredo Errico Provenzano, Stefano Amatori, Maria Gemma Nasoni, Giuseppe Persico, Sergio Russo, Anna Rita Mastrogiacomo, Alessandro Gambarara, Mirco Fanelli
BACKGROUND/AIMS: Life on Earth is constantly exposed to electromagnetic fields (EMFs) and the effects induced by EMFs on biological systems have been extensively studied producing different and sometimes contradictory results. Extremely low-frequency electromagnetic fields (ELF-EMFs) have shown to play a role in regulating cell proliferation and differentiation, although how EMFs influence these processes remains unclear. Human acute promyelocytic leukemia (APL) cells are characterized by the arrest of differentiation at the promyelocytic stage due to epigenetic perturbations induced by PML/RARα fusion protein (Promyelocytic Leukemia protein - PML/Retinoic Acid Receptor alpha - RARα)...
March 23, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29589053/loss-of-wilms-tumor-1-protein-is-a-marker-for-apoptosis-in-response-to-replicative-stress-in-leukemic-cells
#15
Miriam Pons, Claudia M Reichardt, Dorle Hennig, Abinaya Nathan, Nicole Kiweler, Carol Stocking, Christian Wichmann, Markus Christmann, Falk Butter, Sigrid Reichardt, Günter Schneider, Thorsten Heinzel, Christoph Englert, Jörg Hartkamp, Oliver H Krämer, Nisintha Mahendrarajah
A remaining expression of the transcription factor Wilms tumor 1 (WT1) after cytotoxic chemotherapy indicates remaining leukemic clones in patients. We determined the regulation and relevance of WT1 in leukemic cells exposed to replicative stress and DNA damage. To induce these conditions, we used the clinically relevant chemotherapeutics hydroxyurea and doxorubicin. We additionally treated cells with the pro-apoptotic kinase inhibitor staurosporine. Our data show that these agents promote apoptosis to a variable extent in a panel of 12 leukemic cell lines and that caspases cleave WT1 during apoptosis...
March 27, 2018: Archives of Toxicology
https://www.readbyqxmd.com/read/29582201/friedelane-isolated-from-pouzolzia-indica-gaud-exhibits-toxic-effect-against-melanoma
#16
Debasish Maiti, Ashish Kumar Singha, Chaitali Sarkar, Soham Sarkar, Indrajit Sil Sarma, Kuntal Manna, Biswanath Dinda
Melanoma is a predominant cause of skin cancer-related deaths. It was reported that, the methanolic extract of Pouzolzia Indica (P. indica) on chromatography gave five compounds (1-hentriacontanyl palmitate, myricyl alcohol, 6,7-dimethoxycoumarin, trichadonic acid and friedelane), which inhibited the acute promyelocytic leukemia cell lines, NB4, and HT93A. Friedelane was extracted as active compound from methanolic extract of P. indica. In this study, friedelane was tested on murine metastatic B16F10 and B16BL6 melanoma cell lines...
March 26, 2018: Cytotechnology
https://www.readbyqxmd.com/read/29579321/long-term-outcome-of-relapsed-acute-promyelocytic-leukemia-treated-with-oral-arsenic-trioxide-based-reinduction-and-maintenance-regimens-a-15-year-prospective-study
#17
Harinder Gill, Rita Yim, Harold K K Lee, Vivien Mak, Shek-Ying Lin, Bonnie Kho, Sze-Fai Yip, June S M Lau, Wah Li, Ho-Wan Ip, Yu-Yan Hwang, Thomas S Y Chan, Eric Tse, Wing-Yan Au, Cyrus R Kumana, Yok-Lam Kwong
BACKGROUND: For patients who have acute promyelocytic leukemia (APL) in second complete remission (CR2), optimal postremission strategies remain undefined. METHODS: The role of an oral arsenic trioxide (As2 O3 )-based regimen in the management of patients who had APL in CR2 was examined. RESULTS: Seventy-three patients with APL in first relapse (R1) were studied. Oral As2 O3 -based reinduction resulted uniformly in CR2, irrespective of previous As2 O3 exposure...
March 26, 2018: Cancer
https://www.readbyqxmd.com/read/29572500/basophil-lineage-commitment-in-acute-promyelocytic-leukemia-predicts-for-severe-bleeding-after-starting-therapy
#18
Sergio Matarraz, Pilar Leoz, Carlos Fernández, Enrique Colado, María Carmen Chillón, María Belén Vidriales, Marcos González, Daniel Rivera, Carlos Salvador Osuna, Teresa Caballero-Velázquez, Vincent Van Der Velden, Mojca Jongen-Lavrencic, Oliver Gutiérrez, Ana Yeguas Bermejo, Luis García Alonso, Monique Bourgeois García, Cristina De Ramón Sánchez, Gloria García-Donas, Aránzazu García Mateo, Isabel Recio, Javier Sánchez-Real, Andrea Mayado, María Laura Gutiérrez, Paloma Bárcena, Susana Barrena, Antonio López, Jacques Van Dongen, Alberto Orfao
Severe hemorrhagic events occur in a significant fraction of acute promyelocytic leukemia patients, either at presentation and/or early after starting therapy, leading to treatment failure and early deaths. However, identification of independent predictors for high-risk of severe bleeding at diagnosis, remains a challenge. Here, we investigated the immunophenotype of bone marrow leukemic cells from 109 newly diagnosed acute promyelocytic leukemia patients, particularly focusing on the identification of basophil-related features, and their potential association with severe bleeding episodes and patient overall survival...
March 23, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29569971/src-family-kinase-inhibitor-bosutinib-enhances-retinoic-acid-induced-differentiation-of-hl-60-leukemia-cells
#19
Robert J MacDonald, Rodica P Bunaciu, Victoria Ip, David Dai, David Tran, Jeffrey D Varner, Andrew Yen
The acute promyelocytic leukemia (APL) has been treated with all-trans retinoic acid (RA) for decades. While RA has largely been ineffective in non-APL AML subtypes, co-treatments combining RA and other agents are currently in clinical trials. Using the RA-responsive non-APL AML cell line HL-60, we tested the efficacy of the Src family kinase (SFK) inhibitor bosutinib on RA-induced differentiation. HL-60 has been recently shown to bear fidelity to a subtype of AML that respond to RA. We found that co-treatment with RA and bosutinib enhanced differentiation evidenced by increased CD11b expression, G1 /G0 cell cycle arrest, and respiratory burst...
March 23, 2018: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29568099/identification-of-a-novel-cpsf6-rarg-fusion-transcript-in-acute-myeloid-leukemia-resembling-acute-promyelocytic-leukemia
#20
Ya-Zhen Qin, Xiao-Jun Huang, Hong-Hu Zhu
No abstract text is available yet for this article.
March 14, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
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