Li L.,City of Hope National Medical Center |
Li M.,City of Hope National Medical Center |
Sun C.,City of Hope National Medical Center |
Francisco L.,City of Hope National Medical Center |
And 13 more authors.
Cancer Cell | Year: 2011
Therapy-related myelodysplasia or acute myeloid leukemia (t-MDS/AML) is a major complication of cancer treatment. We compared gene expression in CD34+ cells from patients who developed t-MDS/AML after autologous hematopoietic cell transplantation (aHCT) for lymphoma with controls who did not develop t-MDS/AML. We observed altered gene expression related to mitochondrial function, metabolism, and hematopoietic regulation in pre-aHCT samples from patients who subsequently developed t-MDS/AML. Progression to overt t-MDS/AML was associated with additional alterations in cell-cycle regulatory genes. An optimal 38-gene PBSC classifier accurately distinguished patients who did or did not develop t-MDS/AML in an independent group of patients. We conclude that genetic programs associated with t-MDS/AML are perturbed long before disease onset, and accurately identify patients at risk for this complication. © 2011 Elsevier Inc.
Stuber M.L.,University of California at Los Angeles |
Meeske K.A.,Childrens Hospital of Los Angeles |
Krull K.R.,St Judes Childrens Research Hospital |
Leisenring W.,Fred Hutchison Cancer Research Center |
And 8 more authors.
Pediatrics | Year: 2010
OBJECTIVE: This study compared the prevalence of symptoms of post-traumatic stress disorder (PTSD), with functional impairment and/or clinical distress, among very long-term survivors of childhood cancer and a group of healthy siblings. METHODS: A total of 6542 childhood cancer survivors >18 years of age who received diagnoses between 1970 and 1986 and 368 siblings of cancer survivors completed a comprehensive demographic and health survey. RESULTS: A total of 589 survivors (9%) and 8 siblings (2%) reported functional impairment and/or clinical distress in addition to the set of symptoms consistent with a full diagnosis of PTSD. Survivors had more than fourfold greater risk of PTSD, compared with siblings (odds ratio [OR]: 4.14 [95% confidence interval [CI]: 2.08-8.25]). With controlling for demographic and treatment variables, increased risk of PTSD was associated with educational level of high school or less (OR: 1.51 [95% CI: 1.16-1.98]), being unmarried (OR: 1.99 [95% CI: 1.58-2.50]), having annual income below $20 000 (OR: 1.63 [95% CI: 1.21-2.20]), and being unemployed (OR: 2.01 [95% CI: 1.62-2.51]). Intensive treatment also was associated with increased risk of full PTSD (OR: 1.36 [95% CI: 1.06-1.74]). CONCLUSIONS: PTSD was reported significantly more often by survivors of childhood cancer than by sibling control subjects. Although most survivors apparently are faring well, a subset reported significant impairment that may warrant targeted intervention. Copyright © 2010 by the American Academy of Pediatrics.
Thun M.J.,American Cancer Society |
Carter B.D.,American Cancer Society |
Feskanich D.,Harvard University |
Freedman N.D.,U.S. National Cancer Institute |
And 4 more authors.
New England Journal of Medicine | Year: 2013
BACKGROUND: The disease risks from cigarette smoking increased in the United States over most of the 20th century, first among male smokers and later among female smokers. Whether these risks have continued to increase during the past 20 years is unclear. METHODS: We measured temporal trends in mortality across three time periods (1959-1965, 1982-1988, and 2000-2010), comparing absolute and relative risks according to sex and self-reported smoking status in two historical cohort studies and in five pooled contemporary cohort studies, among participants who became 55 years of age or older during follow-up. RESULTS: For women who were current smokers, as compared with women who had never smoked, the relative risks of death from lung cancer were 2.73, 12.65, and 25.66 in the 1960s, 1980s, and contemporary cohorts, respectively; corresponding relative risks for male current smokers, as compared with men who had never smoked, were 12.22, 23.81, and 24.97. In the contemporary cohorts, male and female current smokers also had similar relative risks for death from chronic obstructive pulmonary disease (COPD) (25.61 for men and 22.35 for women), ischemic heart disease (2.50 for men and 2.86 for women), any type of stroke (1.92 for men and 2.10 for women), and all causes combined (2.80 for men and 2.76 for women). Mortality from COPD among male smokers continued to increase in the contemporary cohorts in nearly all the age groups represented in the study and within each stratum of duration and intensity of smoking. Among men 55 to 74 years of age and women 60 to 74 years of age, all-cause mortality was at least three times as high among current smokers as among those who had never smoked. Smoking cessation at any age dramatically reduced death rates. CONCLUSIONS: The risk of death from cigarette smoking continues to increase among women and the increased risks are now nearly identical for men and women, as compared with persons who have never smoked. Among men, the risks associated with smoking have plateaued at the high levels seen in the 1980s, except for a continuing, unexplained increase in mortality from COPD. Copyright © 2013 Massachusetts Medical Society.
Marty F.M.,Dana-Farber Cancer Institute |
Ljungman P.,Karolinska Institutet |
Papanicolaou G.A.,Sloan Kettering Cancer Center |
Winston D.J.,University of California at Los Angeles |
And 12 more authors.
The Lancet Infectious Diseases | Year: 2011
Background: Available drugs against cytomegalovirus have adverse effects that compromise their prophylactic use in recipients of allogeneic stem-cell transplants. We assessed the safety, tolerability, and antiviral activity of oral maribavir in such patients. Methods: In this placebo-controlled, randomised, double-blind, multicentre phase 3 study, we enrolled adult patients recipient-seropositive or donor-seropositive for cytomegalovirus who had undergone allogeneic stem-cell transplantation. Patients were recruited from 90 centres in Canada, Europe, and the USA. After engraftment, patients were stratified by recipient cytomegalovirus serostatus and conditioning regimen (myeloablative or reduced-intensity) and assigned (2:1) by masked computer-generated randomisation sequence to receive maribavir 100 mg twice daily or placebo for up to 12 weeks, with weekly blood cytomegalovirus surveillance. If the virus was detected, administration of study drug was stopped and pre-emptive anticytomegalovirus treatment started. The primary endpoint was cytomegalovirus disease within 6 months of transplantation. Analysis was by intention-to-treat. This study is registered with ClinicalTrials.gov, NCT00411645. Findings: Between December, 2006, and May, 2008, 681 patients were enrolled and assigned to receive maribavir (454) or placebo (227). The incidence of cytomegalovirus disease within 6 months was 20 of 454 (4%) for the maribavir group and 11 of 227 (5%) for the placebo group (OR 0·90; 95% CI 0·42-1·92). During the 100 days following transplantation, cytomegalovirus infection rates as measured by pp65 antigenaemia were lower in the maribavir group (26·4%) than in the placebo group (34·8%; OR 0·67; 0·47-0·95), but not when measured by plasma cytomegalovirus DNA PCR (27·8% vs 30·4%; OR 0·88; 0·62-1·25), nor by initiation of treatment against cytomegalovirus (30·6% vs 37·4%; OR 0·73, 0·52-1·03). Maribavir was well tolerated: most adverse events, including incident acute graft-versus-host disease and neutropenia, affected both groups equally, except for taste disturbance (15% maribavir, 6% placebo). Interpretation: Compared with placebo, maribavir prophylaxis did not prevent cytomegalovirus disease when started after engraftment. Cytomegalovirus disease as a primary endpoint might not be sufficient to show improvements in cytomegalovirus prevention in recipients of allogeneic stem-cell transplants in the setting of pre-emptive antiviral treatment. Clinical and virological composite endpoints should be used in future trials. Funding: ViroPharma Incorporated. © 2011 Elsevier Ltd.
Jacobs E.J.,Epidemiology Research Program |
Newton C.C.,Epidemiology Research Program |
Carter B.D.,Epidemiology Research Program |
Feskanich D.,Harvard University |
And 4 more authors.
Annals of Epidemiology | Year: 2015
Purpose: The proportion of cancer deaths in the contemporary United States caused by cigarette smoking (the population attributable fraction [PAF]) is not well documented. Methods: The PAF of all cancer deaths due to active cigarette smoking among adults 35 years and older in the United States in 2010 was calculated using age- and sex-specific smoking prevalence from the National Health Interview Survey (NHIS) and age- and sex-specific relative risks from the Cancer Prevention Study-II (for ages 35-54 years) and from the Pooled Contemporary Cohort data set (for ages 55 years and older). Results: The PAF for active cigarette smoking was 28.7% when estimated conservatively, including only deaths from the 12 cancers currently formally established as caused by smoking by the US Surgeon General. The PAF was 31.7% when estimated more comprehensively, including excess deaths from all cancers. These estimates do not include additional potential cancer deaths from environmental tobacco smoke or other type of tobacco use such as cigars, pipes, or smokeless tobacco. Conclusions: Cigarette smoking causes a large proportion of cancer deaths in the contemporary United States. Reducing smoking prevalence as rapidly as possible should be a top priority for the US public health efforts to prevent cancer deaths. © 2015 Elsevier Inc.
Minkina A.,University of Minnesota |
Matson C.K.,University of Minnesota |
Matson C.K.,Fred Hutchison Cancer Research Center |
Lindeman R.E.,University of Minnesota |
And 3 more authors.
Developmental Cell | Year: 2014
Mammalian sex determination initiates in the fetal gonad with specification of bipotential precursor cells into male Sertoli cells or female granulosa cells. This choice was long presumed to be irreversible, but genetic analysis in the mouse recently revealed that sexual fates must be maintained throughout life. Somatic cells in the testis or ovary, even in adults, can be induced to transdifferentiate to their opposite-sex equivalents by loss of a single transcription factor, DMRT1 in the testis or FOXL2 in the ovary. Here, we investigate what mechanism DMRT1 prevents from triggering transdifferentiation. We find that DMRT1 blocks testicular retinoic acid (RA) signaling from activating genes normally involved in female sex determination and ovarian development and show that inappropriate activation of these genes can drive sexual transdifferentiation. By preventing activation of potential feminizing genes, DMRT1 allows Sertoli cells to participate in RA signaling, which is essential for reproduction, without being sexually reprogrammed. © 2014 Elsevier Inc.
Clark B.S.,Medical College of Wisconsin |
Cui S.,Medical College of Wisconsin |
Miesfeld J.B.,Medical College of Wisconsin |
Klezovitch O.,Fred Hutchison Cancer Research Center |
And 2 more authors.
Development | Year: 2012
To gain insights into the cellular mechanisms of neurogenesis, we analyzed retinal neuroepithelia deficient for Llgl1, a protein implicated in apicobasal cell polarity, asymmetric cell division, cell shape and cell cycle exit. We found that vertebrate retinal neuroepithelia deficient for Llgl1 retained overt apicobasal polarity, but had expanded apical domains. Llgl1 retinal progenitors also had increased Notch activity and reduced rates of neurogenesis. Blocking Notch function by depleting Rbpj restored normal neurogenesis. Experimental expansion of the apical domain, through inhibition of Shroom3, also increased Notch activity and reduced neurogenesis. Significantly, in wild-type retina, neurogenic retinal progenitors had smaller apical domains compared with proliferative neuroepithelia. As nuclear position during interkinetic nuclear migration (IKNM) has been previously linked with cell cycle exit, we analyzed this phenomenon in cells depleted of Llgl1. We found that although IKNM was normal, the relationship between nuclear position and neurogenesis was shifted away from the apical surface, consistent with increased proproliferative and/or anti-neurogenic signals associated with the apical domain. These data, in conjunction with other findings, suggest that, in retinal neuroepithelia, the size of the apical domain modulates the strength of polarized signals that influence neurogenesis. © 2012. Published by The Company of Biologists Ltd.
Carpenter K.M.,Alere Inc |
Stoner S.A.,Talaria, Inc. |
Schmitz K.,Oregon Health And Science University |
McGregor B.A.,Fred Hutchison Cancer Research Center |
Doorenbos A.Z.,University of Washington
Journal of Behavioral Medicine | Year: 2014
Cognitive behavioral stress management groups have been shown to be decrease psychological symptoms and increase adaptive coping in breast cancer patients, but dissemination of this effective intervention has been challenging. The goal of the present project was to develop an online cognitive behavioral stress management intervention for early stage breast cancer survivors and evaluate its effectiveness using a 2 group × 3 time randomized, waitlist-controlled design. Intervention and waitlist control group participants were assessed at three time points: at baseline; at 10 weeks, after which only intervention participants had used the workbook; and at 20 weeks, after which both groups had used the workbook. Results indicate that at 10 weeks intervention participants showed improved self-efficacy for coping with their cancer and for regulating negative mood and lower levels of cancer-related post-traumatic symptoms as compared to the control group, suggesting that an internet stress management intervention could be effective for helping breast cancer patients increase their confidence in their ability to cope with stress. © 2012 Springer Science+Business Media New York.
Imayama I.,Fred Hutchison Cancer Research Center |
Alfano C.M.,U.S. National Institutes of Health |
Kong A.,University of Illinois at Chicago |
Foster-Schubert K.E.,University of Washington |
And 9 more authors.
International Journal of Behavioral Nutrition and Physical Activity | Year: 2011
Background: Although lifestyle interventions targeting multiple lifestyle behaviors are more effective in preventing unhealthy weight gain and chronic diseases than intervening on a single behavior, few studies have compared individual and combined effects of diet and/or exercise interventions on health-related quality of life (HRQOL). In addition, the mechanisms of how these lifestyle interventions affect HRQOL are unknown. The primary aim of this study was to examine the individual and combined effects of dietary weight loss and/or exercise interventions on HRQOL and psychosocial factors (depression, anxiety, stress, social support). The secondary aim was to investigate predictors of changes in HRQOL.Methods: This study was a randomized controlled trial. Overweight/obese postmenopausal women were randomly assigned to 12 months of dietary weight loss (n = 118), moderate-to-vigorous aerobic exercise (225 minutes/week, n = 117), combined diet and exercise (n = 117), or control (n = 87). Demographic, health and anthropometric information, aerobic fitness, HRQOL (SF-36), stress (Perceived Stress Scale), depression [Brief Symptom Inventory (BSI)-18], anxiety (BSI-18) and social support (Medical Outcome Study Social Support Survey) were assessed at baseline and 12 months. The 12-month changes in HRQOL and psychosocial factors were compared using analysis of covariance, adjusting for baseline scores. Multiple regression was used to assess predictors of changes in HRQOL.Results: Twelve-month changes in HRQOL and psychosocial factors differed by intervention group. The combined diet + exercise group improved 4 aspects of HRQOL (physical functioning, role-physical, vitality, and mental health), and stress (p ≤ 0.01 vs. controls). The diet group increased vitality score (p < 0.01 vs. control), while HRQOL did not change differently in the exercise group compared with controls. However, regardless of intervention group, weight loss predicted increased physical functioning, role-physical, vitality, and mental health, while increased aerobic fitness predicted improved physical functioning. Positive changes in depression, stress, and social support were independently associated with increased HRQOL, after adjusting for changes in weight and aerobic fitness.Conclusions: A combined diet and exercise intervention has positive effects on HRQOL and psychological health, which may be greater than that from exercise or diet alone. Improvements in weight, aerobic fitness and psychosocial factors may mediate intervention effects on HRQOL. © 2011 Imayama et al; licensee BioMed Central Ltd.
Brunstein C.G.,University of Minnesota |
Gutman J.A.,Fred Hutchison Cancer Research Center |
Weisdorf D.J.,University of Minnesota |
Woolfrey A.E.,University of Minnesota |
And 6 more authors.
Blood | Year: 2010
Effectiveness of double umbilical cord blood (dUCB) grafts relative to conventional marrow and mobilized peripheral blood from related and unrelated donors has yet to be established. We studied 536 patients at the Fred Hutchinson Cancer Research Center and University of Minnesota with malignant disease who underwent transplantation with an human leukocyte antigen (HLA)-matched related donor (MRD, n = 204), HLAallele-matched unrelated donor (MUD, n = 152) or 1-antigen-mismatched unrelated adult donor (MMUD, n = 52) or 4-6/6 HLA matched dUCB (n = 128) graft after myeloablative conditioning. Leukemia-free survival at 5 years was similar for each donor type (dUCB 51% [95% confidence interval (CI), 41%-59%]; MRD 33% [95% CI, 26%-41%]; MUD 48% [40%-56%]; MMUD 38% [95% CI, 25%-51%]). The risk of relapse was lower in recipients of dUCB (15%, 95% CI, 9%-22%) compared with MRD (43%, 95% CI, 35%-52%), MUD (37%, 95% CI, 29%-46%) and MMUD (35%, 95% CI, 21%-48%), yet nonrelapse mortality was higher for dUCB (34%, 95% CI, 25%-42%), MRD (24% (95% CI, 17%-39%), and MUD (14%, 95% CI, 9%-20%). We conclude that leukemia-free survival after dUCB transplantation is comparable with that observed after MRD and MUD transplantation. For patients without an available HLA matched donor, the use of 2 partially HLA-matched UCB units is a suitable alternative. © 2010 by The American Society of Hematology.