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https://www.readbyqxmd.com/read/28498285/c-myc-and-its-main-ubiquitin-ligase-fbxw7-influence-cell-proliferation-and-prognosis-in-adult-t-cell-leukemia-lymphoma
#1
Yasuhito Mihashi, Mikio Mizoguchi, Yasushi Takamatsu, Kenji Ishitsuka, Hiromi Iwasaki, Monji Koga, Kazunori Urabe, Seiya Momosaki, Toshifumi Sakata, Fumiaki Kiyomi, Morishige Takeshita
Smoldering-type and chronic-type adult T-cell leukemia/lymphomas (ATLL) patients have relatively indolent clinical courses, but often progress into aggressive lymphoma-type and acute-type disease. We examined the roles of transcription factor C-MYC and its ubiquitin ligase FBXW7 in tumor tissues from 137 patients with ATLL. Immunohistochemical tests showed ≥50% of lymphoma cells in 78.7% (48/61) of lymphoma-type, and 64.9% (24/37) of acute-type samples expressed C-MYC, significantly higher than was seen in smoldering-type (3...
May 11, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28466382/assessment-of-htlv-1-proviral-load-lat-bim-c-fos-and-rad51-gene-expression-in-adult-t-cell-leukemia-lymphoma
#2
Samaneh Ramezani, Abbas Shirdel, Houshang Rafatpanah, Mohammad Mehdi Akbarin, Hanieh Tarokhian, Hossein Rahimi, Alireza Bari, Hamid Reza Jahantigh, Seyed Abdolrahim Rezaee
Adult T cell leukemia/lymphoma (ATLL) is a life-threatening malignancy of HTLV-1 infected Th lymphocytes. In the present study host-virus interactions were investigated by assessment of HTLV-1 proviral load (PVL) and host gene expression. A cross-sectional study was carried out on 18 ATLL, 10 HAM/TSP patients and 18 HTLV-1 asymptomatic carriers (ACs). DNA and mRNA of the peripheral blood mononuclear cells were extracted for PVL and LAT, BIM, c-FOS and RAD51 gene expression measurement using qRT-PCR. The mean PVL in ATLL patients was 11,430 ± 3770 copies/10(4) which was statistically higher than ACs, 530 ± 119 copies/10(4), (p < 0...
May 2, 2017: Medical Microbiology and Immunology
https://www.readbyqxmd.com/read/28426803/dendritic-cell-maturation-but-not-type-i-interferon-exposure-restricts-infection-by-htlv-1-and-viral-transmission-to-t-cells
#3
Gergès Rizkallah, Sandrine Alais, Nicolas Futsch, Yuetsu Tanaka, Chloé Journo, Renaud Mahieux, Hélène Dutartre
Human T lymphotropic Virus type 1 (HTLV-1) is the etiological agent of Adult T cell Leukemia/Lymphoma (ATLL) and HTLV-1-Associated Myelopathy/Tropical Spastic Paraparesis (HAM/TSP). Both CD4+ T-cells and dendritic cells (DCs) infected with HTLV-1 are found in peripheral blood from HTLV-1 carriers. We previously demonstrated that monocyte-derived IL-4 DCs are more susceptible to HTLV-1 infection than autologous primary T-cells, suggesting that DC infection precedes T-cell infection. However, during blood transmission, breast-feeding or sexual transmission, HTLV-1 may encounter different DC subsets present in the blood, the intestinal or genital mucosa respectively...
April 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28420814/cell-adhesion-molecule-1-cadm1-expressed-on-adult-t-cell-leukemia-lymphoma-cells-is-not-involved-in-the-interaction-with-macrophages
#4
Yoshihiro Komohara, Chaoya Ma, Hiromu Yano, Cheng Pan, Hasita Horlad, Yoichi Saito, Koji Ohnishi, Yukio Fujiwara, Yutaka Okuno, Kisato Nosaka, Shunsuke Shimosaki, Kazuhiro Morishita, Masao Matsuoka, Tomohiko Wakayama, Motohiro Takeya
Cell adhesion molecule 1 (CADM1) is a cell adhesion molecule that is expressed in brain, liver, lung, testis, and some kinds of cancer cells including adult T-cell leukemia/lymphoma (ATLL). Recent studies have indicated the involvement of CADM1 in cell-cell contact between cytotoxic T-lymphocytes and virus infected cells. We previously reported that cell-cell interaction between lymphoma cells and macrophages induces lymphoma cell proliferation. In the present study, we investigated whether CADM1 is associated with cell-cell interaction between several human lymphoma cell lines and macrophages...
April 18, 2017: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/28420813/establishment-of-cell-lines-from-adult-t-cell-leukemia-cells-dependent-on-negatively-charged-polymers
#5
Yoshitoyo Kagami, Susumu Uchiyama, Harumi Kato, Yasutaka Okada, Masao Seto, Tomohiro Kinoshita
Growing adult T-cell leukemia/lymphoma (ATLL) cells in vitro is difficult. Here, we examined the effects of static electricity in the culture medium on the proliferation of ATLL cells. Six out of 10 ATLL cells did not proliferate in vitro and thus had to be cultured in a medium containing negatively charged polymers. In the presence of poly-γ-glutamic acid (PGA) or chondroitin sulfate (CDR), cell lines (HKOX3-PGA, HKOX3-CDR) were established from the same single ATLL case using interleukin (IL)-2, IL-4, and feeder cells expressing OX40L (OX40L(+)HK)...
April 18, 2017: Journal of Clinical and Experimental Hematopathology: JCEH
https://www.readbyqxmd.com/read/28340877/adult-t-cell-leukemia-lymphoma-a-problem-abroad-and-at-home
#6
REVIEW
Christopher Dittus, J Mark Sloan
Adult T-cell leukemia/lymphoma (ATLL) is a rare T-cell disorder that is etiologically linked to chronic infection with human T-cell lymphotropic virus type 1. ATLL is divided into four subtypes: acute, lymphomatous, chronic, and smoldering. The acute and lymphomatous variants are often described clinically as the aggressive types of ATLL. Treatment strategies traditionally have focused on antiviral therapy with zidovudine and interferon-alpha and combination chemotherapy. Novel therapeutic approaches include the use of monoclonal antibodies, anti-CCR4 therapy, immunomodulatory therapy, and anti-TAX vaccines...
April 2017: Hematology/oncology Clinics of North America
https://www.readbyqxmd.com/read/28329538/primary-cutaneous-smoldering-adult-t-cell-leukemia-lymphoma
#7
Julia Gittler, Kathryn Martires, Vitaly Terushkin, Nooshin Brinster, David Ramsay
HTLV-1 is a virus that is endemic in southwesternJapan and the Caribbean and has been implicatedin the development of ATLL. ATLL, which is anuncommon malignant condition of peripheralT-lymphocytes, is characterized by four clinicalsubtypes, which include acute, lymphomatous,chronic, and smoldering types, that are based onLDH levels, calcium levels, and extent of organinvolvement. We present a 52-year- old woman withpruritic patches with scale on the buttocks and withtender, hyperpigmented macules and papules oftwo-years duration...
December 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28321034/galectin-9-as-a-predictive-marker-for-the-onset-of-immune-related-adverse-effects-associated-with-anti-ccr4-moab-therapy-in-patients-with-adult-t-cell-leukemia
#8
Tareg Omer Mohammed, Haorile Chagan-Yasutan, Yugo Ashino, Wakana Nakayama, Yayoi Takahashi, Taizo Shimomura, Tetsuhiro Fujimoto, Yuko Watanabe, Toshiro Niki, Hitoshi Suzushima, Toshio Hattori
Adult T-cell leukemia/lymphoma (ATL/ATLL) is one of the most malignant lymphomas with poor prognosis. ATL/ATLL cells express CC chemokine receptor 4, and mogamulizumab (anti-CCR4 monoclonal antibody) exhibits strong cytotoxicity for ATL/ATLL cells. We analyzed plasma samples of 6 patients with ATL/ATLL treated with chemotherapy followed by mogamulizumab therapy (mogatherapy) for changes in the levels of biomarkers in relation to immune-related adverse effects. As treatment is often associated with skin eruptions, we investigated the profiles of inflammatory cytokines, including galectin-9 (Gal-9), which becomes increased in various infectious diseases and allergic patients...
March 2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28251608/adult-t-cell-leukemia-lymphoma-in-a-peruvian-hospital-in-human-t-lymphotropic-virus-type-1-htlv-1-positive-patients
#9
Milton José Max Rodríguez-Zúñiga, Florencio Cortez-Franco, Eberth Qujiano-Gomero
BACKGROUND: Adult T-cell leukemia/lymphoma (ATLL) is an aggressive neoplasm of T-lymphocytes associated with human T-lymphotropic virus type I (HTLV-1) infection. As HTLV-1 is endemic in native ethnics in South America, and its infection leads to several chronic diseases as ATLL with poor prognosis, we aimed to present three ATLL cases and to review current literature. CASE REPORTS: Two cases were from the mountains of Peru, while one was from an endemic harbor of the country...
March 2, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28214593/jak-stat-pathway-directed-therapy-of-t-cell-leukemia-lymphoma-inspired-by-functional-and-structural-genomics
#10
REVIEW
Thomas A Waldmann
Abnormal activation of the γc cytokine JAK/STAT signaling pathway assessed by STAT3 or STAT5b phosphorylation was present in a proportion of many T-cell malignancies. Activating mutations of STAT3/STAT5b and JAK1/3 were present in some but not in all cases with constitutive signaling pathway activation. Using shRNA analysis pSTAT malignant T-cell lines were addicted to JAKs/STATs whether they were mutated or not. Activating JAK/STAT mutations were not sufficient to support leukemic cell proliferation but only augmented upstream pathway signals...
February 15, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28190863/successful-umbilical-cord-blood-hematopoietic-stem-cell-transplantation-in-a-patient-with-adult-t-cell-leukemia-lymphoma-initially-achieving-complete-remission-with-anti-cc-chemokine-receptor-4-antibody-combined-chemotherapy
#11
Tatsuya Suwabe, Yasuhiko Shibasaki, Akane Kaihatsu, Takayuki Katagiri, Shukuko Miyakoshi, Kyoko Fuse, Hironori Kobayashi, Takashi Ushiki, Masato Moriyama, Jun Takizawa, Miwako Narita, Hirohito Sone, Masayoshi Masuko
A 62-year-old man with CHOP refractory adult T-cell leukemia/lymphoma (ATLL) received anti-CC chemokine receptor 4 antibody (mogamulizumab) combined with CHOP and achieved complete remission. At 71 days after the final administration of mogamulizumab, he received umbilical cord blood transplantation (CBT) using reduced intensity conditioning. Umbilical cord blood engraftment was confirmed on day16. Grade II acute graft-versus-host disease (GVHD) was diagnosed on day60 and was controlled by administration of methylprednisolone...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28152225/effects-of-mogamulizumab-in-adult-t-cell-leukemia-lymphoma-in-clinical-practice
#12
Masaaki Sekine, Yoko Kubuki, Takuro Kameda, Masanori Takeuchi, Takanori Toyama, Noriaki Kawano, Kouichi Maeda, Seiichi Sato, Junzo Ishizaki, Hiroshi Kawano, Ayako Kamiunten, Keiichi Akizuki, Yuki Tahira, Haruko Shimoda, Kotaro Shide, Tomonori Hidaka, Akira Kitanaka, Kiyoshi Yamashita, Hitoshi Matsuoka, Kazuya Shimoda
OBJECTIVE: The efficacy of mogamulizumab in adult T-cell leukemia/lymphoma (ATLL) was reported in a previous phase 2 study. Compared with patients in clinical trials, however, most patients in real-life settings have demonstrated worse outcomes. METHOD: We retrospectively analyzed 96 patients with relapsed/refractory ATLL who received mogamulizumab treatment. RESULTS: Relapsed/refractory ATLL patients with a median age of 70 years received a median of five courses of mogamulizumab...
February 2, 2017: European Journal of Haematology
https://www.readbyqxmd.com/read/28110427/evaluation-of-inos-icam-1-and-vcam-1-gene-expression-a-study-of-adult-t-cell-leukemia-malignancy-associated-with-htlv-1
#13
Mahdokht Jafarian, Sayed-Hamidreza Mozhgani, Elham Patrad, Hamidreza Vaziri, Seyed Abdolrahim Rezaee, Mohammad Mehdi Akbarin, Mehdi Norouzi
The main aim of this study was to evaluate the expression of intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), and inducible nitric oxide synthase (iNOS) as host factors, and proviral load as the viral parameter, in adult T-cell leukemia/lymphoma (ATLL) individuals and healthy carrier (HC(s)) groups. Peripheral blood mononuclear cells (PBMC) from ATLL patients (n = 17) and HC subjects (as the control group, n = 17) were evaluated using real-time PCR to determine the levels of HTLV-1 proviral load and mRNA expression of ICAM, VCAM-1, and iNOS...
April 2017: Archives of Virology
https://www.readbyqxmd.com/read/28088963/-clinical-characteristics-and-prognosis-in-12-patients-with-adult-t-cell-leukemia-lymphoma-confirmed-by-htlv-1-provirus-gene-detection
#14
Z J Wu, X Y Zheng, X Z Yang, T B Liu, T Yang, Z H Zheng, F Gao, C X Chen, J G Li, C Q Zhang, W Q Lin, H Y Zheng, S X Lin, J D Hu
Objective: To analyze the clinical characteristics and prognosis of adult T cell leukemia/lymphoma (ATLL). Methods: Peripheral blood samples from patients who were suspected as ATLL from March, 2013 to July, 2015, were collected for HTLV-1 provirus genes detection in genomic DNA extraction by PCR. Cases showing positive results were confirmed as ATLL. Clinical and laboratory characteristics, therapeutic outcomes and survival evaluation were collected. Results: 12 out of 23 suspected patients were confirmedly diagnosed as ATLL through HTLV-1 provirus genes detection by PCR...
December 14, 2016: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28040482/schistosoma-antigens-downregulate-cxcl9-production-by-pbmc-of-htlv-1-infected-individuals
#15
Luciane Mota Lima, Luciana Santos Cardoso, Silvane Braga Santos, Ricardo Riccio Oliveira, Sérgio Costa Oliveira, Alfredo Miranda Góes, Alex Loukas, Maria Ilma Araujo
HTLV-1 is the causal agent of Adult T cell Leukemia/lymphoma (ATLL) and HTLV-1-associated Myelopathy/Tropical Spastic Paraparesis (HAM/TSP). The immune response to HTLV-1-infection is polarized to the Th1-type, and the presence of CXCL9/CXCL10 chemokines may lead to an increase in the recruitment of pro-inflammatory molecules in spinal cord tissue, contributing to the damage observed in the development of HAM/TSP. It has been observed that in chronic helminth-infections, such as schistosomiasis, there is a deviation toward the Th2/regulatory immune response...
March 2017: Acta Tropica
https://www.readbyqxmd.com/read/28034804/whole-body-clonality-analysis-in-an-aggressive-stlv-1-associated-leukemia-atll-reveals-an-unexpected-clonal-complexity
#16
Jocelyn Turpin, Sandrine Alais, Ambroise Marçais, Julie Bruneau, Anat Melamed, Nicolas Gadot, Yuetsu Tanaka, Olivier Hermine, Sandrine Melot, Romain Lacoste, Charles R Bangham, Renaud Mahieux
HTLV-1 causes Adult T cell Leukemia/Lymphoma (ATLL) in humans. We describe an ATL-like disease in a 9 year-old female baboon naturally infected with STLV-1 (the simian counterpart of HTLV-1), with a lymphocyte count over 10(10)/L, lymphocytes with abnormal nuclear morphology, and pulmonary and skin lesions. The animal was treated with a combination of AZT and alpha interferon. Proviral load (PVL) was measured every week. Because the disease continued to progress, the animal was euthanized. Abnormal infiltrates of CD3(+)CD25(+) lymphocytes and Tax-positive cells were found by histological analyses in both lymphoid and non-lymphoid organs...
December 26, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27903986/adult-t-cell-leukemia-aggressivenness-correlates-with-loss-of-both-5-hydroxymethylcytosine-and-tet2-expression
#17
Ambroise Marçais, Laetitia Waast, Julie Bruneau, Katia Hanssens, Vahid Asnafi, Philippe Gaulard, Felipe Suarez, Patrice Dubreuil, Antoine Gessain, Olivier Hermine, Claudine Pique
Mutations in TET2, encoding one of the TET members responsible for the conversion of DNA cytosine methylation to hydroxymethylation (5-hmc), have been recently described in Human T-lymphotropic virus type 1-associated adult T-cell leukemia/lymphoma (ATLL). However, neither the amount of genomic 5-hmc in ATLL tumor cells nor TET2 expression has been studied yet. In this study, we analyzed these two parameters as well as the mutational status of TET2 in ATLL patients. By employing a direct in situ approach, we documented that tumor T cells infiltrating lymph nodes exhibit low level of 5-hmc compared to residual normal T cells...
November 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27868052/friend-or-foe-mogamulizumab-in-allogeneic-hematopoietic-stem-cell-transplantation-for-adult-t-cell-leukemia-lymphoma
#18
REVIEW
Shigeo Fuji, Takero Shindo
Adult T-cell leukemia/lymphoma (ATL/ATLL) is a peripheral T-cell neoplasm associated with human T-lymphotropic virus type-1 (HTLV-1). Even the currently most intensive chemotherapy regimen modified LSG15 (mLSG15, VCAP-AMP-VECP) results in a dismal clinical outcome, with a median overall survival of only around 1 year. Although allogeneic hematopoietic stem cell transplantation (allo-HSCT) may lead to long-term remission in a proportion of patients with aggressive ATL, the clinical outcome in patients with refractory or relapsed ATL is unsatisfactory...
2016: Stem Cell Investigation
https://www.readbyqxmd.com/read/27829440/wrn-targeted-therapy-using-inhibitors-nsc-19630-and-nsc-617145-induce-apoptosis-in-htlv-1-transformed-adult-t-cell-leukemia-cells
#19
R Moles, X T Bai, H Chaib-Mezrag, C Nicot
BACKGROUND: Human T-cell leukemia virus type 1 (HTLV-1) infection is associated with adult T-cell leukemia/lymphoma (ATLL), a lymphoproliferative malignancy with a dismal prognosis and limited therapeutic options. Recent evidence shows that HTLV-1-transformed cells present defects in both DNA replication and DNA repair, suggesting that these cells might be particularly sensitive to treatment with a small helicase inhibitor. Because the "Werner syndrome ATP-dependent helicase" encoded by the WRN gene plays important roles in both cellular proliferation and DNA repair, we hypothesized that inhibition of WRN activity could be used as a new strategy to target ATLL cells...
November 9, 2016: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/27829385/complete-response-of-extramedullary-relapse-in-breast-of-acute-t-lymphoblastic-leukemia-after-bone-marrow-transplantation-to-chemoradiotherapy-a-case-report-and-literature-review
#20
Bailong Liu, Bin Liu, Xu Wang, Liang Guo, Xiaoliang Liu, Wei Han, Lihua Dong, Min Liu
BACKGROUND: Relapse of acute lymphoblastic leukemia (ALL) occurring in the breast after allografting is extremely rare, with only 22 reported cases in the literature thus far. Further, the lack of a systemic analysis provides little information about this entity. We present a case of isolated extramedullary relapse from acute T lymphoblastic leukemia (ATLL) after allogeneic hematopoietic stem cell transplantation (HSCT). CASE PRESENTATION: A 32-year-old Chinese woman diagnosed with ATLL with myeloid antigen expression received HSCT from her human leukocyte antigen (HLA)-matched sister and presented with two lesions in her right breast 6 months later...
November 9, 2016: BMC Cancer
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