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philadelphia chromosome-positive acute lymphoblastic leukemia

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https://www.readbyqxmd.com/read/29236701/anti-leukemic-activity-of-bortezomib-and-carfilzomib-on-b-cell-precursor-all-cell-lines
#1
Kazuya Takahashi, Takeshi Inukai, Toshihiko Imamura, Mio Yano, Chihiro Tomoyasu, David M Lucas, Atsushi Nemoto, Hiroki Sato, Meixian Huang, Masako Abe, Keiko Kagami, Tamao Shinohara, Atsushi Watanabe, Shinpei Somazu, Hiroko Oshiro, Koshi Akahane, Kumiko Goi, Jiro Kikuchi, Yusuke Furukawa, Hiroaki Goto, Masayoshi Minegishi, Shotaro Iwamoto, Kanji Sugita
Prognosis of childhood acute lymphoblastic leukemia (ALL) has been dramatically improved. However, prognosis of the cases refractory to primary therapy is still poor. Recent phase 2 study on the efficacy of combination chemotherapy with bortezomib (BTZ), a proteasome inhibitor, for refractory childhood ALL demonstrated favorable clinical outcomes. However, septic death was observed in over 10% of patients, indicating the necessity of biomarkers that could predict BTZ sensitivity. We investigated in vitro BTZ sensitivity in a large panel of ALL cell lines that acted as a model system for refractory ALL, and found that Philadelphia chromosome-positive (Ph+) ALL, IKZF1 deletion, and biallelic loss of CDKN2A were associated with favorable response...
2017: PloS One
https://www.readbyqxmd.com/read/29233926/targeting-cdk6-and-bcl2-exploits-the-myb-addiction-of-ph-acute-lymphoblastic-leukemia
#2
Marco De Dominici, Patrizia Porazzi, Angela Rachele Soliera, Samanta A Mariani, Sankar Addya, Paolo Fortina, Luke F Peterson, Orietta Spinelli, Alessandro Rambaldi, Giovanni Martinelli, Anna Ferrari, Ilaria Iacobucci, Bruno Calabretta
Philadelphia Chromosome-positive acute lymphoblastic leukemia (Ph+ ALL) is currently treated with BCR-ABL1 tyrosine kinase inhibitors (TKI) in combination with chemotherapy. However, most patients develop resistance to TKI through BCR-ABL1-dependent and -independent mechanisms. Newly developed TKI can target Ph+ ALL cells with BCR-ABL1-dependent resistance; however, overcoming BCR-ABL1-independent mechanisms of resistance remains challenging because transcription factors (TF), which are difficult to inhibit, are often involved...
December 12, 2017: Cancer Research
https://www.readbyqxmd.com/read/29222233/current-management-of-philadelphia-chromosome-positive-all-and-the-role-of-stem-cell-transplantation
#3
REVIEW
Farhad Ravandi
Treatment of Philadelphia chromosome positive acute lymphoblastic leukemia exemplifies how the addition of potent targeted agents, directed at the molecular aberrations responsible for leukemic transformation, can overcome resistance mechanisms to traditional regimens and lead to improved outcomes. The introduction of BCR-ABL1 targeted tyrosine kinase inhibitors (TKIs) has significantly improved the outcomes not only by allowing more patients to undergo allogeneic hematopoietic cell transplantation (alloHCT) but also by decreasing our reliance on this potentially toxic strategy, particularly in the less fit population...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29214878/combination-of-ikzf1-deletion-and-early-molecular-response-show-significant-roles-on-prognostic-stratification-in-philadelphia-chromosome-positive-acute-lymphoblastic-leukemia-patients
#4
He Li, Wanhua Zhang, Pu Kuang, Yuanxin Ye, Jinjun Yang, Yang Dai, Xiaojun Lu, Yuhuan Zheng, Ting Liu
We retrospectively analyzed the samples collected from 66 patients with Ph+ALL enrolled on ChiCTR-TNRC-09000309 clinical trial. CR rate was 95.5%, and estimated 2-year OS and DFS were 51.7 ± 11.7% and 26.9 ± 11.6%, 3-year OS and DFS were 31.6 ± 12.0% and 23.4 ± 11.6%. By combining IKZF1 deletion and early molecular responses, we redefined the patients as low, intermediate, and high risk 3 groups separately. Patients with double negative in IKZF1 and early molecular response experienced significant superior survival, while patients with double positive would have the worst outcome, and patients who were one or the other with IKZF1 deletion or MRD status had intermediate outcome...
December 7, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29212977/-philadelphia-chromosome-positive-acute-lymphoblastic-leukemia-complicated-by-concomitant-achromobacter-xylosoxidans-and-corynebacterium-striatum-bacteremia-following-allogeneic-hematopoietic-stem-cell-transplantation
#5
Yuta Katayama, Kouhei Kyo, Koji Iwato, Takeshi Okatani, Ryota Imanaka, Mitsuhiro Itagaki, Shinya Katsutani, Hideki Asaoku
A 54-year-old woman with Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ALL) underwent hematopoietic stem cell transplantation from an HLA-matched sibling. Subsequently, she suffered from chronic graft versus host disease (GvHD) and received medical treatment. Fever developed on day 697 and resulted in a shock state at 10 h after the visit. Achromobacter xylosoxidans was detected in the initial blood culture on day 699. General conditions exacerbated even after the start of meropenem hydrate (MEPM, Meropen®) administration, with Corynebacterium striatum detected as an additional species in the initial blood culture on day 701...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/29212964/simple-determination-of-plasma-ponatinib-concentration-using-hplc
#6
Takeo Yasu, Kenji Momo, Shunsuke Kobayashi, Seiichirou Kuroda, Arinobu Tojo
Ponatinib, a novel tyrosine kinase inhibitor marketed in 2016, is a key drug used for treating chronic myeloid leukemia and Philadelphia chromosome-positive acute lymphoblastic leukemia. This study aimed to develop a simple method for determining plasma ponatinib concentration. The analysis required extraction of a 400-μL sample of plasma and precipitation of proteins using an Oasis HLB cartridge. Ponatinib and bosutinib, which is used as an internal standard, were separated by HPLC using a mobile phase of acetonitrile: 0...
December 6, 2017: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29188580/10-year-complete-remission-in-a-philadelphia-chromosome-positive-acute-lymphoblastic-leukemia-patient-using-imatinib-without-high-intensity-chemotherapy-or-allogeneic-stem-cell-transplantation
#7
Katsumichi Fujimaki, Yukako Hattori, Hideaki Nakajima
The outcome of Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph-ALL) has improved with the use of tyrosine kinase inhibitors, such as imatinib and dasatinib. We report a 63-year-old woman with Ph-ALL who maintained complete remission for 10 years using imatinib without high-intensity chemotherapy or allogeneic stem cell transplantation. She underwent induction therapy with imatinib plus prednisolone and achieved complete remission by day 53. Imatinib was continued until 103 months, when it was stopped in response to renal dysfunction; however, the patient continued to exhibit molecular remission at 120 months...
November 29, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/29152059/gzd824-suppresses-the-growth-of-human-b-cell-precursor-acute-lymphoblastic-leukemia-cells-by-inhibiting-the-src-kinase-and-pi3k-akt-pathways
#8
Wei Ye, Zhiwu Jiang, Xiaoyun Lu, Xiaomei Ren, Manman Deng, Shouheng Lin, Yiren Xiao, Simiao Lin, Suna Wang, Baiheng Li, Yi Zheng, Peilong Lai, Jianyu Weng, Donghai Wu, Yuguo Ma, Xudong Chen, Zhesheng Wen, Yaoyu Chen, Xiaoyan Feng, Yangqiu Li, Pentao Liu, Xin Du, Duanqing Pei, Yao Yao, Bing Xu, Ke Ding, Peng Li
Available therapeutic options for advanced B cell precursor acute lymphoblastic leukemia (pre-B ALL) are limited. Many lead to neutropenia, leaving patients at risk of life-threatening infections and result in bad outcomes. New treatment options are needed to improve overall survival. We previously showed that GZD824, a novel BCR-ABL tyrosine kinase inhibitor, has anti-tumor activity in Philadelphia chromosome-positive (Ph+) chronic myeloid leukemia cells and tumor models. Here, we show that GZD824 decreases cell viability, induces cell-cycle arrest, and causes apoptosis in pre-B ALL cells...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29140408/philadelphia-chromosome-like-mixed-phenotype-acute-leukemia-demonstrating-p2ry8-crlf2-fusion-and-jak1-mutation
#9
Sarah M Choi, John K Frederiksen, Charles W Ross, Dale L Bixby, Lina Shao
Objectives: Philadelphia chromosome-like (Ph-like) genetic alterations define a subset of B lymphoblastic leukemia/lymphoma (B-ALL), which represents a separate provisional entity in the World Health Organization 2016 updated classification. However, these alterations have not been described outside the context of B-ALL. Methods: Cytogenomic array and molecular analysis identified a Ph-like signature in a mixed-phenotype acute leukemia (MPAL), B/myeloid, confirmed using conventional immunophenotypic and cytochemical analysis...
November 20, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29132472/-research-progress-in-ph-like-childhood-acute-lymphoblastic-leukemia
#10
Xue Tang, Xia Guo
Philadelphia chromosome-like acute lymphoblastic leukemia (Ph-like ALL) is a subtype of B-lineage ALL (B-ALL) that displays a gene expression profile (GEP) similar to Philadelphia chromosome-positive ALL (Ph(+) ALL). It has a diverse range of genetic alterations that activate cytokine receptor genes and kinase signaling pathways, frequently accompanied by abnormal transcription factors related to lymphatic development. Children with Ph-like ALL account for 15% of children with high-risk B-ALL. It has adverse clinical features and a poor prognosis...
November 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29082835/efficacy-and-safety-of-bispecific-t-cell-engager-blinatumomab-and-the-potential-to-improve-leukemia-free-survival-in-b-cell-acute-lymphoblastic-leukemia
#11
Josep-Maria Ribera
Immunotherapy is a promising modality of treatment of neoplastic diseases, including acute lymphoblastic leukemia (ALL). The CD19/CD3-bispecific T cell-engaging (BiTE®) monoclonal antibody blinatumomab can transiently bind cytotoxic T cells to CD19(+) target B cells of ALL inducing their serial lysis. Areas covered: This review focuses on the efficacy and safety of blinatumomab used for the treatment of relapsed/refractory (R/R) ALL and minimal residual disease (MRD)-positive B-cell precursor (BCP) ALL in adults and children, as well as the future prospects of this drug in the treatment of ALL...
October 30, 2017: Expert Review of Hematology
https://www.readbyqxmd.com/read/29058281/decitabine-for-relapsed-acute-lymphoblastic-leukemia-after-allogeneic-hematopoietic-stem-cell-transplantation
#12
Jie-Ke Cui, Yin Xiao, Yong You, Wei Shi, Qing Li, Yi Luo, Lin Jiang, Zhao-Dong Zhong
Relapse after allogeneic hematopoietic stem cell transplantation (allo-HSCT) remains a main question on treatment failure. Current strategies for management that usually include salvage chemotherapy, donor lymphocytic infusion and second transplantation. Our study assessed the efficacy of decitabine (DAC) for treating patients with acute lymphoblastic leukemia (ALL) who relapsed after allogeneic hematopoietic stem cell transplantation (allo-HSCT). We retrospectively analyzed the outcomes of 12 patients with relapsed ALL after allo-HSCT who received DAC therapy...
October 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/29050695/how-is-the-ph-like-signature-being-incorporated-into-all-therapy
#13
REVIEW
Luke Maese, Sarah K Tasian, Elizabeth A Raetz
Philadelphia chromosome-like acute lymphoblastic leukemia (Ph-like ALL) is a recently identified high risk disease subtype characterized by a gene expression profile similar to that observed in Philadelphia chromosome-positive (Ph-positive) ALL, but without an underlying BCR-ABL1 translocation. Adults and children with Ph-like ALL harbor a diversity of alterations that all lead to activated kinase signaling. Outcomes for patients with Ph-like ALL are poor, which has prompted investigation into the role of tyrosine kinase inhibitor (TKI)-based therapies for this disease...
September 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/29050694/the-biology-of-philadelphia-chromosome-like-all
#14
REVIEW
Kathryn G Roberts
Philadelphia chromosome-like acute lymphoblastic leukemia (Ph-like ALL) is a recently described subtype of B-cell precursor ALL with a gene expression profile similar to Ph-positive ALL and a high frequency of IKZF1 alterations. The prevalence of Ph-like ALL increases with age, ranging from 10-15% of children to over 25% of young adults with ALL. It occurs more frequently in males and is associated with adverse clinical features including elevated minimal residual disease levels and poor survival in both children and adults...
September 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/29050693/how-should-we-treat-older-adults-with-ph-adult-all-and-what-novel-approaches-are-being-investigated
#15
REVIEW
Matthew J Wieduwilt
Treatment of older patients with Philadelphia-chromosome-positive (Ph+) acute lymphoblastic leukemia presents unique challenges. Advanced age, comorbidities, high treatment-related death rates with traditional chemotherapy, and relapse combine to yield poor survival. Reduced-intensity induction with BCR-ABL1 targeted tyrosine kinase inhibitors (TKIs) and corticosteroids yields CR rates 96-100% with no induction mortality but relapse is nearly certain without effective consolidation. Few clinical trials provide guidance on optimal consolidation for older Ph+ ALL...
September 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/29050692/which-tyrosine-kinase-inhibitor-should-we-use-to-treat-philadelphia-chromosome-positive-acute-lymphoblastic-leukemia
#16
REVIEW
Nicholas J Short, Hagop Kantarjian, Elias Jabbour, Farhad Ravandi
The incorporation of tyrosine kinase inhibitors (TKIs) into chemotherapy regimens has significantly improved the long-term survival of patients with Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ ALL). Successive generations of TKIs with increased potency against BCR-ABL and broader spectrum of activity against ABL kinase domain mutations have led to incremental improvements in the outcomes of patients with this disease. In particular, ponatinib, a potent pan-BCR-ABL TKI capable of overcoming the T315I mutation, holds significant promise in the treatment of Ph+ ALL, although the potential cardiovascular toxicity of this agent remains a concern...
September 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/29050691/philadelphia-chromosome-negative-b-cell-acute-lymphoblastic-leukemia-in-older-adults-current-treatment-and-novel-therapies
#17
REVIEW
Kristen M O'Dwyer, Jane L Liesveld
Older adults with Philadelphia chromosome negative (Ph-),-B-cell acute lymphoblastic leukemia (ALL) have the highest rates of treatment failure and treatment complications with current therapy, and, thus, there is no standard treatment for these patients. Approximately 16 percent of patients with newly diagnosed Ph- B-cell ALL are aged 60 years or older [1]. The five-year overall survival for this older cohort of patients is approximately 20 percent, and there has been no improvement in their survival in decades [2]...
September 2017: Best Practice & Research. Clinical Haematology
https://www.readbyqxmd.com/read/29046900/us-intergroup-study-of-chemotherapy-plus-dasatinib-and-allogeneic-stem-cell-transplant-in-philadelphia-chromosome-positive-all
#18
Farhad Ravandi, Megan Othus, Susan M O'Brien, Stephen J Forman, Chul S Ha, Jeffrey Y C Wong, Martin S Tallman, Elisabeth Paietta, Janis Racevskis, Geoffrey L Uy, Mary Horowitz, Naoko Takebe, Richard Little, Uma Borate, Partow Kebriaei, Laura Kingsbury, Hagop M Kantarjian, Jerald P Radich, Harry P Erba, Frederick R Appelbaum
This multicenter trial was conducted to determine whether the addition of dasatinib to chemotherapy followed by an allogeneic hematopoietic cell transplant (HCT) in patients with Philadelphia chromosome positive (Ph+) acute lymphoblastic leukemia (ALL) was feasible. Patients ≥ 18 and ≤ 60 years of age with newly diagnosed Ph+ ALL received up to 8 cycles of alternating hyperCVAD and high dose cytarabine and methotrexate with dasatinib. Patients with an available matched sibling or unrelated donor underwent an allogeneic HCT in first complete remission (CR1) followed by daily dasatinib starting from day 100...
December 27, 2016: Blood Advances
https://www.readbyqxmd.com/read/29046392/nutlin-3-plus-tanshinone-iia-exhibits-synergetic-anti-leukemia-effect-with-imatinib-by-reactivating-p53-and-inhibiting-the-akt-mtor-pathway-in-ph-all
#19
Yong Guo, Yi Li, Bing Xiang, Xiao-Ou Huang, Hong-Bing Ma, Fang-Fang Wang, Yu-Ping Gong
Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ ALL) is triggered by BCR/ABL kinase. Recent efforts focused on the development of more potent tyrosine kinase inhibitors (TKIs) that also inhibit mutant tyrosine kinases such as nilotinib and dasatinib. Although major advances in the treatment of this aggressive disease with potent inhibitors of the BCR/ABL kinases, patients in remission frequently relapse due to drug resistance possibly mediated, at least in part, by compensatory activation of growth-signaling pathways and protective feedback signaling of leukemia cells in response to TKI treatment...
December 6, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/29043880/concurrent-therapy-of-chronic-lymphocytic-leukemia-and-philadelphia-chromosome-positive-acute-lymphoblastic-leukemia-utilizing-cd19-targeted-car-t-cells
#20
Mark B Geyer, Shwetha H Manjunath, Andrew G Evans, Jae H Park, Marco L Davila, Corey S Cutler, Xiuyan Wang, Yongzeng Wang, Brigitte Senechal, Isabelle Rivière, Michel Sadelain, Jane L Liesveld, Renier J Brentjens
No abstract text is available yet for this article.
October 18, 2017: Leukemia & Lymphoma
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