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International Journal of Hematology

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https://www.readbyqxmd.com/read/28721499/treg-protected-donor-lymphocyte-infusions-a-new-tool-to-address-the-graft-versus-leukemia-effect-in-the-absence-of-graft-versus-host-disease-in-patients-relapsed-after-hsct
#1
Mauro Di Ianni, Paola Olioso, Raffaella Giancola, Stella Santarone, Annalisa Natale, Gabriele Papalinetti, Ida Villanova, Stefano Baldoni, Ambra Di Tommaso, Tiziana Bonfini, Patrizia Accorsi, Paolo Di Bartolomeo
In high-risk acute leukemia patients undergoing haploidentical hematopoietic stem cell transplantation (HSCT), adoptive immunotherapy with T regulatory cells (Tregs) and T conventional cells (Tcons) prevented acute and chronic graft-versus-host disease (GvHD), favored post-transplant immunological reconstitution and was associated with a powerful graft-versus-leukemia (GvL) effect. With a particularly innovative approach, we developed a treatment with a Treg-protected donor lymphocyte infusion (DLI) for patients with early relapse after HSCT and we report here the results obtained in the first patient with APL (M3v) relapsed after a second matched allogeneic HSCT (15% blasts and 75% of donor cells in bone marrow)...
July 18, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28707218/the-dna-damage-response-pathway-in-normal-hematopoiesis-and-malignancies
#2
REVIEW
Domenico Delia, Shuki Mizutani
In mammalian cells, the DNA damage response (DDR) prevents the replication and propagation of DNA errors to the next generation, thus maintaining genomic stability. At the heart of the DDR are the related signaling kinases ATM, ATR, and DNA-PK, which regulate DNA repair and associated events such as cell cycle checkpoints, chromatin remodeling, transcription, and ultimately apoptosis. Several findings highlight the occurrence of DDR in hemopoietic stem cells (HSCs), and persistence of DNA lesions in these cells promotes their functional decline and accumulation of leukemogenic mutations...
July 13, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28699030/dna-damage-response-and-disorders-with-hematology-oncology-and-immunology
#3
EDITORIAL
Shuki Mizutani
No abstract text is available yet for this article.
July 11, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28695414/erratum-to-dna-damage-response-and-hematological-malignancy
#4
Masatoshi Takagi
No abstract text is available yet for this article.
July 10, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28689264/treatment-free-remission-in-patients-with-chronic-myeloid-leukemia
#5
REVIEW
Delphine Rea, Jean-Michel Cayuela
Clinical trials have formally demonstrated that in chronic myeloid leukemia (CML), patients treated with tyrosine kinase inhibitors (TKI) who achieved and maintained deep molecular responses could discontinue their treatment after several years without facing overt signs of disease relapse in approximately 50% of the cases. In patients with a molecular relapse, prompt re-introduction of TKI therapy was able to rapidly restore deep molecular responses. The concept of a lifelong therapy with TKI has thus been challenged and treatment-free remission (TFR) strategies will soon integrate clinical practice, providing that safe recommendations will be established...
July 8, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28687991/retrospective-analysis-of-prognostic-factors-for-waldenstr%C3%B3-m-macroglobulinemia-a-multicenter-cooperative-study-in-japan
#6
Akio Saito, Atsushi Isoda, Masaru Kojima, Akihiko Yokohama, Yutaka Tsukune, Makoto Sasaki, Shigeki Ito, Akihiro Ohtsu, Michiaki Koike, Kayoko Murayama, Keiichi Moriya, Hideto Tamura, Morio Matsumoto, Hirotaka Nakahashi, Sakae Tanosaki, Tohru Sakura, Toshihide Kawamura, Tomomi Miyanaga, Naoya Nakamura, Hirokazu Murakami, Hiroshi Handa, Norifumi Tsukamoto
Although population-based cancer registries have reported lower incidence of Waldenstrӧm macroglobulinemia (WM) in East Asia than in Western countries, previous retrospective analyses have found the clinical features of WM to be similar in these two populations. To clarify the characteristics of Japanese WM patients, we retrospectively analyzed clinical and laboratory characteristics, treatments, outcomes, and prognostic factors in 93 patients with WM. Based on the Second International Workshop on WM (IWWM-2) criteria, symptomatic WM was found in 73 (78...
July 7, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28687990/cd34-negative-hematopoietic-stem-cells-show-distinct-expression-profiles-of-homing-molecules-that-limit-engraftment-in-mice-and-sheep
#7
Tomoyuki Abe, Yoshikazu Matsuoka, Yoshikazu Nagao, Yoshiaki Sonoda, Yutaka Hanazono
We and others have reported that human hematopoietic stem cells (HSCs) are also present in the CD34-negative (CD34(-)) fraction of human cord blood (CB). Here, we examined the hematopoietic engraftment potential of 13 or 18 lineage-negative (13Lin(-) or 18Lin(-)) CD34(+/-) cells from human CB in mice and sheep. Both 13Lin(-) and 18Lin(-) CD34(+) cells efficiently engrafted in mice irrespective of transplantation route, be it by tail-vein injection (TVI) or by intra-bone marrow injection (IBMI). These cells also engrafted in sheep after in utero fetal intra-hepatic injection (IHI)...
July 7, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28687989/screening-novel-autoantigens-targeted-by-serum-igg-autoantibodies-in-immunorelated-pancytopenia-by-serex
#8
Shanfeng Hao, Rong Fu, Huaquan Wang, Zonghong Shao
Immunorelated pancytopenia (IRP) is characterized by pancytopenia caused by autoantibody-mediated destruction or suppression of bone marrow. However, the autoantigens targeted by autoantibodies in IRP remain unclear. In the present study, we screened novel autoantigens in IRP by serological analysis of recombinant cDNA expression libraries and compared anti-UQCR10 antibody levels between IRP and normal controls detected by immunoblotting. Our results indicate that we successfully constructed the K562 cDNA library, which we used to screen seven candidate autoantigens expressed in haematopoietic cells of IRP: ferritin, light polypeptide, ubiquinol-cytochrome c reductase, complex III subunit X (UQCR10), multifunctional methyl-transferase subunit TRM112-like protein isoform 1 (TRMT112), hemoglobin gamma-G, stathmin 1 (STMN1), transcript variant 3, phosphoglycerate kinase 1 (PGK1), and trafficking protein particle complex subunit 4 (TRAPPC4)...
July 7, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28685309/mir-155-enhances-phagocytic-activity-of-%C3%AE-thalassemia-hbe-monocytes-via-targeting-of-bach1
#9
Kanitta Srinoun, Chamnong Nopparatana, Malai Wongchanchailert, Suthat Fucharoen
Abnormal red blood cell (RBC) clearance in β-thalassemia is triggered by activated monocytes. Recent reports indicate that miRNA (miR-) plays a role in monocyte activation. To study phagocytic function, we co-cultured monocytes of normal, non-splenectomized and splenectomized β-thalassemia/HbE individuals with RBCs obtained from normal, non-splenectomized and splenectomized β-thalassemia/HbE individuals. The phagocytic activity of β-thalassemia/HbE monocytes co-cultured with β-thalassemia/HbE RBCs was significantly higher than that of normal monocytes co-cultured with normal RBCs...
July 6, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28685308/pseudo-autologous-stem-cell-transplantation-for-donor-derived-mantle-cell-lymphoma-12%C3%A2-years-after-allogeneic-transplantation
#10
Masaharu Tamaki, Hidenori Wada, Ayumi Gomyo, Jin Hayakawa, Yu Akahoshi, Naonori Harada, Machiko Kusuda, Yuko Ishihara, Koji Kawamura, Aki Tanihara, Miki Sato, Kiriko Terasako-Saito, Kazuaki Kameda, Misato Kikuchi, Shun-Ichi Kimura, Hideki Nakasone, Shinichi Kako, Yoshinobu Kanda
Donor-derived malignancy is a rare morbidity after allogeneic hematopoietic stem cell transplantation (HSCT), in which most previous cases have presented as acute leukemia or myelodysplastic syndrome. There have, however, been very few reports of donor-derived lymphoma. Here, we present a case of donor-derived mantle cell lymphoma 12 years after allogeneic HSCT, which was successfully treated with chemotherapy followed by pseudo-autologous HSCT (pASCT), i.e., an autologous HSC transplant following allogeneic HSCT in which the infused stem cell is considered to be derived from the donor cells...
July 6, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28677113/plasma-chitotriosidase-and-carotid-intima-media-thickness-in-children-with-sickle-cell-disease
#11
Normeen A Kaddah, Dalia A Saied, Hanan A Alwakeel, Rania H Hashem, Sara M Rowizak, Mohamed A Elmonem
The relationship between chronic hemolysis with subsequent iron overload, inflammation, and premature atherosclerosis has been documented in hemolytic anemias, particularly β-thalassemia. However, no such relationship has been established in sickle cell disease (SCD). We sought to evaluate SCD as a risk factor for early vascular insult by measuring carotid intima-media thickness (CIMT) and plasma chitotriosidase and to assess the role of the latter as a potential quantitative indicator of vascular inflammation and atherogenesis...
July 4, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28677112/adult-t-cell-leukemia-cell-induced-uveitis-rapid-increase-in-adult-t-cell-leukemia-cells-disrupts-the-blood-ocular-barrier
#12
Mitsuhito Hirano, Nobuhiro Ohno, Ryuji Tanosaki, Manabu Mochizuki, Kyoko Ohno-Matsui, Kaoru Uchimaru, Arinobu Tojo, Koju Kamoi
Adult T-cell leukemia-lymphoma (ATL), a rare lymphoid malignancy with a high mortality rate, is caused by the human T-cell leukemia virus type 1. Due to its rarity and poor prognosis, ocular manifestations have yet to be well documented. The mechanisms that underlie ocular involvement in ATL patients, thus, remain poorly understood. We report the first successfully tracked case of ocular inflammation (i.e., uveitis) that developed simultaneously in conjunction with a rapid increase in ATL cells. Our findings for this case suggest that a rapid increase in ATL cells contributed to the disruption of the blood-ocular barrier, which may, thus, represent one mechanism underlying the induction of uveitis in ATL patients...
July 4, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28677111/jsh-guideline-for-tumors-of-hematopoietic-and-lymphoid-tissues-leukemia-6-myelodysplastic-syndromes-mds
#13
Yasushi Miyazaki
No abstract text is available yet for this article.
July 4, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28669059/reemergence-of-translocation-t-11-19-q23-p13-1-in-the-absence-of-clinically-overt-leukemia
#14
Suguru Uemura, Akihiro Tamura, Atsuro Saito, Daiichiro Hasegawa, Nanako Nino, Takehito Yokoi, Teppei Tahara, Aiko Kozaki, Kenji Kishimoto, Toshiaki Ishida, Keiichiro Kawasaki, Takeshi Mori, Noriyuki Nishimura, Minenori Ishimae, Mariko Eguchi, Yoshiyuki Kosaka
We report the case of a 10-year-old female with acute myeloid leukemia (AML) FAB M0 carrying a novel t(11;19)(q23;p13.1) MLL-ELL variant, in which intron 8 of MLL is fused to exon 6 of ELL. Complete remission, judged by morphology and cytogenetic analysis, was achieved after the conventional chemotherapy. Eight months after completion of therapy, the level of WT-1 in peripheral blood and the number of cells with the MLL-ELL fusion transcript resurged. However, the patient remained overtly healthy and the morphology in the bone-marrow smear was innocuous, with no sign of relapse or secondary leukemia...
July 1, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28667351/efficacy-and-safety-of-eltrombopag-in-persistent-and-newly-diagnosed-itp-in-clinical-practice
#15
Tomás José González-López, Fernando Fernández-Fuertes, José Angel Hernández-Rivas, Blanca Sánchez-González, Violeta Martínez-Robles, María Teresa Alvarez-Román, Gloria Pérez-Rus, Cristina Pascual, Silvia Bernat, Esther Arrieta-Cerdán, Carlos Aguilar, Abelardo Bárez, María Jesús Peñarrubia, Pavel Olivera, Angeles Fernández-Rodríguez, Erik de Cabo, Luis Javier García-Frade, José Ramón González-Porras
Eltrombopag is safe and effective in primary chronic ITP. However, lack of clinical trials avoids a clear demonstration of its utility in newly diagnosed and persistent ITP. Our aim here is to report Spanish results for this type of patients. We retrospectively evaluated 220 adult primary ITP patients. According to standard definition, patients were allocated to newly diagnosed (n = 30), persistent (n = 30), and chronic (n = 160) ITP. Groups were homogenous regarding most relevant parameters. 180 (90%) of 220 patients achieved a platelet response (R) with 167 (75...
June 30, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28664500/trend-and-treatment-patterns-of-aplastic-anemia-in-korea-pure-red-cell-aplasia-and-myelodysplastic-syndrome-in-korea-a-nation-wide-analysis
#16
Yunsuk Choi, Jae-Cheol Jo, Hee-Jeong Jeon, Dong Wook Kim, Myung Hee Chang, Hawk Kim
Aplastic anemia (AA) and pure red cell aplasia (PRCA) appear to be more prevalent in Asian countries including Korea. However, there are no exact data regarding its prevalence and frequency of allogeneic hematopoietic cell transplantation (HCT) in Korea. Here, we present demographic data relating to AA/PRCA/MDS in Korea. Data were prepared by retrieval from a computerized database maintained by the National Health Insurance Service and Korea National Statistical Office. HCT data were collected from all HCT centers in Korea...
June 29, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28664499/romidepsin-in-japanese-patients-with-relapsed-or-refractory-peripheral-t-cell-lymphoma-a-phase-i-ii-and-pharmacokinetics-study
#17
Dai Maruyama, Kensei Tobinai, Michinori Ogura, Toshiki Uchida, Kiyohiko Hatake, Masafumi Taniwaki, Kiyoshi Ando, Kunihiro Tsukasaki, Takashi Ishida, Naoki Kobayashi, Kenichi Ishizawa, Yoichi Tatsumi, Koji Kato, Toru Kiguchi, Takayuki Ikezoe, Eric Laille, Tokihiro Ro, Hiromi Tamakoshi, Sanae Sakurai, Tomoko Ohtsu
This phase I/II multicenter study evaluated romidepsin treatment in Japanese patients with relapsed/refractory peripheral T-cell lymphoma (PTCL) or cutaneous T-cell lymphoma (CTCL). Patients aged ≥20 years received romidepsin via a 4-h intravenous infusion on days 1, 8, and 15 of each 28-day cycle. Phase I used a 3 + 3 design to identify any dose-limiting toxicity (DLT) for regimens of romidepsin 9 and 14 mg/m(2). The primary endpoints for phase I and II were DLT and overall response rate (ORR), respectively...
June 29, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28643017/safety-and-efficacy-of-daratumumab-in-japanese-patients-with-relapsed-or-refractory-multiple-myeloma-a-multicenter-phase-1-dose-escalation-study
#18
Shinsuke Iida, Kenshi Suzuki, Shigeru Kusumoto, Masaki Ri, Nobuhiro Tsukada, Yu Abe, Masayuki Aoki, Mitsuo Inagaki
Safety, efficacy, and pharmacokinetics (PK) of daratumumab as a monotherapy were investigated in Japanese patients with relapsed/refractory multiple myeloma (MM). This multicenter, dose-escalation study included patients (age ≥20 years) with ≥2 prior therapies. Daratumumab was administered intravenously: 8 mg/kg (n = 4) and 16 mg/kg (n = 5). The primary endpoint was safety. Secondary endpoints included objective response, overall response rate (ORR), progression-free survival (PFS), PK, and immunogenicity...
June 22, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28631178/recent-insights-into-the-molecular-basis-of-fanconi-anemia-genes-modifiers-and-drivers
#19
REVIEW
Ronald S Cheung, Toshiyasu Taniguchi
Fanconi anemia (FA), the most common form of inherited bone marrow failure, predisposes to leukemia and solid tumors. FA is caused by the genetic disruption of a cellular pathway that repairs DNA interstrand crosslinks. The impaired function of this pathway, and the genetic instability that results, is considered the main pathogenic mechanism behind this disease. The identification of breast cancer susceptibility genes (for example, BRCA1/FANCS and BRCA2/FANCD1) as being major players in the FA pathway has led to a surge in molecular studies, resulting in the concept of the FA-BRCA pathway...
June 19, 2017: International Journal of Hematology
https://www.readbyqxmd.com/read/28631177/trail-in-cd8-t-cells-from-patients-with-severe-aplastic-anemia
#20
Chunyan Liu, Mengying Zheng, Tian Zhang, Rong Fu, Huaquan Wang, Ting Wang, Weiwei Qi, Zonghong Shao
Severe aplastic anemia (SAA) is an autoimmune disease caused mainly by activated T lymphocytes. Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a member of TNF family, which can induce apoptosis and play a significant role in the pathogenesis of many autoimmune disorders. In this study, we sought to investigate the role of TRAIL in peripheral CD8+ T cells (CTLs) from SAA patients to clarify the autoimmune mechanisms of bone marrow failure in SAA. The expression of TRAIL and TRAIL-R2 in CTLs from SAA patients and normal controls were determined by flow cytometry, real-time PCR, and western blot...
June 19, 2017: International Journal of Hematology
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