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https://www.readbyqxmd.com/read/28927044/isolation-and-characterization-of-adult-mammary-stem-cells-from-breast-cancer-adjacent-tissues
#1
Ai-Ping Shi, Zhi-Min Fan, Ke-Wei Ma, Yan-Fang Jiang, Lei Wang, Ke-Wei Zhang, Shi-Bo Fu, Ning Xu, Zhi-Ru Zhang
Normal adult mammary stem cells (AMSCs) are promising sources for breast reconstruction, particularly following the resection of breast tumors. However, carcinogenic events can potentially convert normal AMSCs to cancer stem cells, posing a safety concern for the use of AMSCs for clinical tissue regeneration. In the present study, AMSCs and autologous primary breast cancer cells were isolated and compared for their ability to differentiate, their gene expression profile, and their potential to form tumors in vivo...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28926105/loss-of-runx1-is-associated-with-aggressive-lung-adenocarcinomas
#2
Jon Ramsey, Kelly Butnor, Zhihua Peng, Tim Leclair, Jos van der Velden, Gary Stein, Jane Lian, C Matthew Kinsey
The mammalian runt-related factor 1 (RUNX1) is a master transcription factor that regulates lineage specification of hematopoietic stem cells. RUNX1 translocations result in the development of myeloid leukemias. Recently, RUNX1 has been implicated as a tumor suppressor in other cancers. We postulated RUNX1 expression may be associated with lung adenocarcinoma etiology and/or progression. We evaluated the association of RUNX1 mRNA expression with overall survival data from The Cancer Genome Atlas (TCGA), a publically available database...
September 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28925880/antileukemic-properties-of-sesquiterpene-lactones-a-systematic-review
#3
Elaine da Silva Castro, Lívia Azeredo Alves Antunes, Jonathas Felipe Revoredo Lobo, Norman Arthur Ratcliffe, Ricardo Moreira Borges, Leandro Rocha, Patrícia Federal Burth, Lidia Maria Fonte Amorim
This review summarizes the reported molecular mechanisms underlying the antileukemic property of Sesquiterpene Lactones (SLs). This systematic review was registered in the PROSPERO database and conducted following the PRISMA Statements. The MeSH terms, Sesquiterpenes, Lactones and Leukemia were used in four databases (Pubmed, Web of Science, Scopus and Bireme). There were 281 studies selected, but after exclusions, due to replication (n = 172) or not following PECOS criteria (n = 24), 148 studies remained. Of the 148 articles, only 22 were submitted to quality assessment and were scored in high level if more than two techniques, to elucidate antileukemic proprieties, were described, and then data were extracted...
September 18, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28920078/notch1-activation-depletes-the-pool-of-side-population-stem-cells-in-atl
#4
Xue Tao Bai, Chien-Hung Yeh, Christophe Nicot
BACKGROUND: HTLV-I infection is associated with the development of adult T-cell leukemia (ATL), a malignancy characterized by a high rate of disease relapse and poor survival. Previous studies reported the existence of side population (SP) cells in HTLV-I Tax transgenic mouse models. These studies showed that these ATL-like derived SP cells have both self-renewal and leukemia renewal capacity and represent Cancer Stem Cells (CSC)/Leukemia-Initiating Cells (LIC). Since CSC/LIC are resistant to conventional therapies, a better characterization is needed...
June 2017: Journal of Cancer Sciences
https://www.readbyqxmd.com/read/28919910/chloroma-of-the-testis-in-a-patient-with-a-history-of-acute-myeloid-leukemia
#5
Mohammad Hossein Sanei, Matin Shariati
Chloroma, or granulocytic sarcoma, is a rare extramedullary solid hematologic cancer, found concomitant with acute myeloid leukemia. It is infrequently associated with other myeloproliferative disorders or chronic myelogenous leukemia. Chloroma of the testis after allogeneic bone marrow transplantation is particularly sparsely represented in the literature. It is suggested that an appropriate panel of marker studies be performed along with clinical correlation and circumspection to avoid misleading conclusions...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/28916148/chemokine-receptor-directed-imaging-and-therapy
#6
REVIEW
Andreas K Buck, Antje Stolzenburg, Heribert Hänscheid, Andreas Schirbel, Katharina Lückerath, Margret Schottelius, Hans-Jürgen Wester, Constantin Lapa
The C - X - C chemokine receptor 4 (CXCR4) and its natural ligand CXCL12 are key factors in the process of cell migration, homing of hematopoietic stem cells to the bone marrow, and represent important mediators of angiogenesis and cell proliferation. The CXCR4/CXCL12 interplay can be disrupted by CXCR4 antagonists such as Plerixafor which are already in daily clinical use, i.e. for mobilization and subsequent harvesting of hematopoietic progenitor cells and stem cell transplantation. In a pathological condition, involvement in the process of metastasis and homing of cancer cells to a protective niche has been described, making CXCR4 an attractive target for imaging and treatment of malignant diseases...
September 12, 2017: Methods: a Companion to Methods in Enzymology
https://www.readbyqxmd.com/read/28911263/potential-role-of-oct4-in-leukemogenesis
#7
Tiphanie Picot, Sanae Kesr, Yuenv Wu, Carmen Aanei, Pascale Flandrin-Gresta, Sylvie Tondeur, Emmanuelle Tavernier, Eric Wattel, Denis Guyotat, Lydia Campos
Embryonic stem cells typically show properties of long term self-renewal and lack of differentiation. When appropriately stimulated, they are able to differentiate into all cell lineages, and lose their self-renewal characteristics. These properties are controlled by a series of genes encoding several transcription factors including OCT4, the product of POU5F1 gene. OCT4 is expressed in germ-cell tumors, but also aberrantly in cancers developing in differentiated tissues. In a previous study, we observed a high expression of OCT4 in acute myeloid cell lines and primary cells, regardless of the Acute Myeloid Leukemia subtype...
September 14, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28898691/leukemic-cells-gas-up-leaky-bone-marrow-blood-vessels
#8
Tomer Itkin, Shahin Rafii
In this issue of Cancer Cell, Passaro et al. demonstrate how leukemia through aberrant induction of reactive oxygen species and nitric oxide production trigger marrow vessel leakiness, instigating pro-leukemic function. Disrupted tumor blood vessels promote exhaustion of non-malignant stem and progenitor cells and may facilitate leukemia relapse following chemotherapeutic treatment.
September 11, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28895362/-cd133-epitope-vaccine-with-gp96-as-adjuvant-elicits-an-antitumor-t-cell-response-against-leukemia
#9
Shuo Wang, Hongxia Fan, Yang Li, Huaguo Zheng, Xin Li, Changfei Li, Lizhao Chen, Ying Ju, Songdong Meng
Cancer stem cells are currently under intensive investigation due to their capabilities for tumor initiation, self-renewal, and resistance to chemotherapy. CD133 is implicated in stemness and the malignancy of tumor cells. Here, we explored heat shock protein gp96 adjuvanted CD133 epitope vaccine against leukemia. We screened and identified three H2-Kd-restricted cytotoxic T lymphocyte (CTL) epitopes derived from CD133, CD133₄₁₉₋₄₂₈, CD133₇₀₂₋₇₁₀ and CD133₇₆₀₋₇₆₉. The immunogenicity and antitumor activity of the epitope vaccine using heat shock protein gp96 as adjuvant were further determined in CD133⁺ leukemia xenograft mice...
June 25, 2017: Sheng Wu Gong Cheng Xue Bao, Chinese Journal of Biotechnology
https://www.readbyqxmd.com/read/28886361/survival-of-the-fittest-darwinian-selection-underpins-chemotherapy-resistance-in-aml
#10
Laura MacPherson, Mark A Dawson
Intratumor heterogeneity driving therapeutic resistance is a major challenge in cancer management. Recently in Nature, Shlush et al. (2017) provide a tour de force of genomics coupled to functional assays to demonstrate that resistance emerges from a pre-existing subpopulation of acute myeloid leukemia (AML) cells with a stem cell transcription program.
September 7, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/28875010/anti-apoptotic-effects-of-osteopontin-via-the-up-regulation-of-akt-mtor-%C3%AE-catenin-loop-in-acute-myeloid-leukemia-cells
#11
Mahdi Zahed Panah, Mohsen Nikbakht, Seyed Mehdi Sajjadi, Shahrbano Rostami, Amir Hossein Norooznezhad, Hosein Kamranzadeh Fumani, Ardeshir Ghavamzadeh, Saeed Mohammadi
Background: The conventional chemotherapeutic regimens which applied for treatment of acute myeloid leukemia (AML) mostly target tumor bulk but not leukemic stem cells (LSCs). Aberrant expression or activation of mediators such as osteopontin (OPN) or PI3K/PTEN/Akt/mTOR pathway plays a key role in making prone to develop leukemia. Preventing or treating cancer by curcumin (CUR) has been suggested recently. CUR induces apoptosis and growth inhibition through various mechanisms in leukemic cells. In present study, we tried to measure the toxic response in vitro to CUR for evaluation ofchangesin cell viability, survival and molecular-mediated resistance in primary AML cells...
April 1, 2017: International Journal of Hematology-oncology and Stem Cell Research
https://www.readbyqxmd.com/read/28874583/smad7-enables-stat3-activation-and-promotes-pluripotency-independent-of-tgf-%C3%AE-signaling
#12
Yi Yu, Shuchen Gu, Wenjian Li, Chuang Sun, Fenfang Chen, Mu Xiao, Lei Wang, Dewei Xu, Ye Li, Chen Ding, Zongping Xia, Yi Li, Sheng Ye, Pinglong Xu, Bin Zhao, Jun Qin, Ye-Guang Chen, Xia Lin, Xin-Hua Feng
Smad7 is a negative feedback product of TGF-β superfamily signaling and fine tunes a plethora of pleiotropic responses induced by TGF-β ligands. However, its noncanonical functions independent of TGF-β signaling remain to be elucidated. Here, we show that Smad7 activates signal transducers and activators of transcription 3 (STAT3) signaling in maintaining mouse embryonic stem cell pluripotency in a manner independent of the TGF-β receptors, yet dependent on the leukemia inhibitory factor (LIF) coreceptor glycoprotein 130 (gp130)...
September 5, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28874563/epigenetic-control-via-allosteric-regulation-of-mammalian-protein-arginine-methyltransferases
#13
Kanishk Jain, Cyrus Y Jin, Steven G Clarke
Arginine methylation on histones is a central player in epigenetics and in gene activation and repression. Protein arginine methyltransferase (PRMT) activity has been implicated in stem cell pluripotency, cancer metastasis, and tumorigenesis. The expression of one of the nine mammalian PRMTs, PRMT5, affects the levels of symmetric dimethylarginine (SDMA) at Arg-3 on histone H4, leading to the repression of genes which are related to disease progression in lymphoma and leukemia. Another PRMT, PRMT7, also affects SDMA levels at the same site despite its unique monomethylating activity and the lack of any evidence for PRMT7-catalyzed histone H4 Arg-3 methylation...
September 5, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28859185/salvage-chemoimmunotherapy-with-inotuzumab-ozogamicin-combined-with-mini-hyper-cvd-for-patients-with-relapsed-or-refractory-philadelphia-chromosome-negative-acute-lymphoblastic-leukemia-a-phase-2-clinical-trial
#14
Elias Jabbour, Farhad Ravandi, Partow Kebriaei, Xuelin Huang, Nicholas J Short, Deborah Thomas, Koji Sasaki, Michael Rytting, Nitin Jain, Marina Konopleva, Guillermo Garcia-Manero, Richard Champlin, David Marin, Tapan Kadia, Jorge Cortes, Zeev Estrov, Koichi Takahashi, Yogin Patel, Maria R Khouri, Jovitta Jacob, Rebecca Garris, Susan O'Brien, Hagop Kantarjian
Importance: The outcome of patients with relapsed or refractory (R/R) acute lymphoblastic leukemia (ALL) is poor. Inotuzumab ozogamicin, a CD22 monoclonal antibody bound to calicheamicin, has single-agent activity in R/R ALL. Objective: To evaluate the efficacy and safety of inotuzumab ozogamicin plus low-intensity chemotherapy in patients with R/R ALL. Design, Setting, and Participants: A single-arm, phase 2 study of adults with R/R B-cell ALL conducted at The University of Texas MD Anderson Cancer Center, Houston...
August 31, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28859112/mathematical-modelling-as-a-proof-of-concept-for-mpns-as-a-human-inflammation-model-for-cancer-development
#15
Morten Andersen, Zamra Sajid, Rasmus K Pedersen, Johanne Gudmand-Hoeyer, Christina Ellervik, Vibe Skov, Lasse Kjær, Niels Pallisgaard, Torben A Kruse, Mads Thomassen, Jesper Troelsen, Hans Carl Hasselbalch, Johnny T Ottesen
The chronic Philadelphia-negative myeloproliferative neoplasms (MPNs) are acquired stem cell neoplasms which ultimately may transform to acute myelogenous leukemia. Most recently, chronic inflammation has been described as an important factor for the development and progression of MPNs in the biological continuum from early cancer stage to the advanced myelofibrosis stage, the MPNs being described as "A Human Inflammation Model for Cancer Development". This novel concept has been built upon clinical, experimental, genomic, immunological and not least epidemiological studies...
2017: PloS One
https://www.readbyqxmd.com/read/28859028/sinusoidal-obstruction-syndrome-during-chemotherapy-of-pediatric-cancers-and-its-successful-management-with-defibrotide
#16
Hande Kizilocak, Gürcan Dikme, Nihal Özdemir, Sebuh Kuruğoğlu, İbrahim Adaletli, Tülay Erkan, Tiraje Celkan
Sinusoidal obstruction syndrome (SOS) is a life-threatening complication generally occurring after hematopoietic stem cell transplantation. SOS after standard dose chemotherapy in malignancies is rare. Between the year 1995 and 2016, 414 patients were diagnosed with acute lymphoblastic leukemia and 113 patients were diagnosed with Wilms tumor in our institution. Among these patients, 4 patients with acute lymphoblastic leukemia (0.96%) and 2 patients with Wilms tumor (1.7%) developed SOS during treatment. SOS behaves like a local disseminated intravascular coagulation...
August 30, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28844403/sepsis-and-acute-myeloid-leukemia-a%C3%A2-population-level-study-of-comparative-outcomes-of-patients-discharged-from-texas%C3%A2-hospitals
#17
Imrana A Malik, Marylou Cardenas-Turanzas, Susan Gaeta, Gautum Borthakur, Kristen Price, Jorge Cortes, Joseph L Nates
BACKGROUND: In the United States, approximately 750,000 cases of sepsis occur annually, and 28% to 50% of affected people die. Treatment is costly, often involving admission to the intensive care unit and prolonged hospitalization. We evaluated outcomes of patients with acute myeloid leukemia (AML) and sepsis in Texas. PATIENTS AND METHODS: We conducted a population-based cohort study of adults discharged from Texas hospitals during 2011, using ICD-9-CM codes and the Texas Inpatient Data Collection...
July 25, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28843422/redirecting-t-cells-with-chimeric-antigen-receptor-car-for-the-treatment-of-childhood-acute-lymphoblastic-leukemia
#18
REVIEW
Andrea Biondi, Chiara F Magnani, Sarah Tettamanti, Giuseppe Gaipa, Ettore Biagi
Acute lymphoblastic leukemia (ALL) is the most common cancer in children. Nowadays the survival rate is around 85%. Nevertheless, an urgent clinical need is still represented by primary refractory and relapsed patients who do not significantly benefit from standard approaches, including chemo-radiotherapy and hematopoietic stem cell transplantation (HSCT). For this reason, immunotherapy has so far represented a challenging novel treatment opportunity, including, as the most validated therapeutic options, cancer vaccines, donor-lymphocyte infusions and tumor-specific immune effector cells...
August 23, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28841879/an-integrative-multi-lineage-model-of-variation-in-leukopoiesis-and-acute-myelogenous-leukemia
#19
Joyatee M Sarker, Serena M Pearce, Robert P Nelson, Tamara L Kinzer-Ursem, David M Umulis, Ann E Rundell
BACKGROUND: Acute myelogenous leukemia (AML) progresses uniquely in each patient. However, patients are typically treated with the same types of chemotherapy, despite biological differences that lead to differential responses to treatment. RESULTS: Here we present a multi-lineage multi-compartment model of the hematopoietic system that captures patient-to-patient variation in both the concentration and rates of change of hematopoietic cell populations. By constraining the model against clinical hematopoietic cell recovery data derived from patients who have received induction chemotherapy, we identified trends for parameters that must be met by the model; for example, the mitosis rates and the probability of self-renewal of progenitor cells are inversely related...
August 25, 2017: BMC Systems Biology
https://www.readbyqxmd.com/read/28839454/donor-cell-origin-high-risk-myelodysplastic-syndrome-synchronous-with-an-intracranial-meningioma-like-tumor-8-years-after-allogeneic-hematopoietic-stem-cell-transplantation-for-chronic-lymphocytic-leukemia
#20
G Brás, C Pinho-Vaz, A Campos
Secondary neoplasias are well known consequences of radiotherapy or chemotherapy for a primary cancer. In this report, we describe two rare secondary neoplasias occurring in the same patient: a meningioma-like intracranial tumor and high-risk myelodysplastic syndrome (MDS) of donor-cells origin, both diagnosed simultaneously, 8 years after an allogeneic hematopoietic stem cell transplantation (allo-HSCT) for chronic lymphocytic leukemia (CLL). Due to an engraftment failure during the first allo-HSCT of a matched related donor for CLL treatment, the salvage treatment was a second allo-HSCT...
2017: Case Reports in Medicine
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