Genetic factors control regenerative properties of blood-forming stem cells, UCLA studies show

FINDINGSResearchers from the UCLA Department of Medicine, Division of Hematology Oncology and the  Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research at UCLA have published two studies that define how key genetic factors affect blood-forming stem cells by either accelerating or hindering the cells ’ regenerative properties. The findings could one day lead to improved treatments for people undergoing common therapies for cancer such as chemotherapy and radiation. BACKGROUNDBlood-forming stem cells, or hematopoietic stem cells, are found in the bone marrow. These cells have two unique properties: They can self-renew and, through a process called differentiation, they can form any type of blood cell. A healthy immune system depends on the regenerative abilities of hematopoietic stem cells.Common cancer therapies such as chemotherapy and radiation can eliminate cancer by killing cancer cells. But these treatments also damage hematopoietic stem cells, which can impede the cells ’ ability to regenerate blood, slowing the immune system and resulting in a longer, more complicated recovery for people with cancer. Previous research indicated that certain genes may alter hematopoietic stem cells’ regenerative capacity by either accelerating or hindering the cells’ ability to restore the immune system, but more research was needed to pinpoint the specific genetic activity and effects.METHODOne of the new studies focused on a gene...
Source: UCLA Newsroom: Health Sciences - Category: Universities & Medical Training Source Type: news

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CONCLUSIONS: The proposed TRBD and MTRBD criteria may provide an important signpost to help clinicians, researchers and stakeholders in judging how and when to consider new non-standard treatments. However, some challenging diagnostic and therapeutic issues were identified in the consensus process that need further evaluation and research.Declaration of interestIn the past 3 years, M.B. has received grant/research support from the NIH, Cooperative Research Centre, Simons Autism Foundation, Cancer Council of Victoria, Stanley Medical Research Foundation, MBF, NHMRC, Beyond Blue, Rotary Health, Geelong Medical Research Found...
Source: The British Journal of Psychiatry for Mental Science - Category: Psychiatry Tags: Br J Psychiatry Source Type: research
Funding Opportunity RFA-AI-18-054 from the NIH Guide for Grants and Contracts. The purpose of this Funding Opportunity Announcement (FOA) is to promote collaborative biomedical research between the United States and Brazil under the U.S.-Brazil Biomedical Collaborative Research Program. Research areas supported under this program include allergy, immunology, and infectious diseases, including HIV/AIDS and its co-morbidities; cancer; mother-to-child transmission of HIV and other congenital infections, early infant diagnosis and treatment; HIV/AIDS in relation to mental health; and neurological disorders and stroke.
Source: NIH Funding Opportunities (Notices, PA, RFA) - Category: Research Source Type: funding
Purpose of review The risk of cancer is higher, and its outcome is worse in patients with primary immunodeficiency (PID) than in members of the general population. Thus, the inter-relationship of malignant diseases with PIDs requires more study. Recent findings Large genetic screens identified a vast number of germline mutations in childhood cancer patient samples. Although TP53 was the most frequent single gene identified as mutated, many PID disorders like DNA repair defects are among the inborn causes of childhood cancer. We provide a comprehensive analysis of compiled data from seven recent studies that focused on...
Source: Current Opinion in Pediatrics - Category: Pediatrics Tags: ALLERGY, IMMUNOLOGY AND RELATED DISORDERS: Edited by Jordan S. Orange Source Type: research
Publication date: Available online 26 November 2018Source: Materials Science and Engineering: CAuthor(s): Hanadi A. Katouah, Jabir H. Al-Fahemi, Marwa G. Elghalban, Fawaz A. Saad, Ismail A. Althagafi, Nashwa M. El-Metwaly, Abdalla M. KhedrAbstractNew nanometer Cu(II)-benzohydrazide complexes were synthesized and characterized. Mono negative tetra-dentate mode is the general feature proposed for all coordinating ligands. Variable structural forms were established, square-planer, tetrahedral and octahedral arrangements around copper centers. XRD and TEM studies displayed a nanometer size for crystalline compounds. TGA analys...
Source: Materials Science and Engineering: C - Category: Materials Science Source Type: research
In this study, we analyzed the effect of elderly status on relative comorbidities and complications of sinonasal cancer (SNC) patients receiving surgery.MethodsA retrospective database analysis was performed using cases from the Nationwide Inpatient Sample (NIS) from 2003 to 2012. Patients with a diagnosis of malignant neoplasm of the nasal cavity or paranasal sinuses, who received surgery for sinonasal malignancy, including neck dissections, were selected. Demographics of interest included age, sex, race, type of admission, mean length of stay, and median hospital charges. Elderly and nonelderly patients were compared for...
Source: International Forum of Allergy and Rhinology - Category: Allergy & Immunology Authors: Tags: ORIGINAL ARTICLE Source Type: research
Human PBMCs fight or flight response to starvation stress: Increased T-reg, FOXP3, and TGF-β1 with decreased miR-21 and Constant miR-181c levels. Biomed Pharmacother. 2018 Dec;108:1404-1411 Authors: Rahmani M, Mohammadnia-Afrouzi M, Nouri HR, Fattahi S, Akhavan-Niaki H, Mostafazadeh A Abstract Regulatory T-lymphocytes play a prominent role in autoimmunity, allergy, and cancer. In some conditions such as inflammation and tumor, immune cells are encountered with metabolic stress. Emerging evidence indicates the contribution of microRNAs in both metabolism and immune regulation. Herewith, we have ex...
Source: Biomedicine and pharmacotherapy = Biomedecine and pharmacotherapie - Category: Drugs & Pharmacology Authors: Tags: Biomed Pharmacother Source Type: research
INTRODUCTIONUsually attributed to allergies or parasites (Seifert et. al Medline 2008) eosinophila is often overlooked. However hypereosinophilia (absolute eosinophil count>1.5 X 109/L on two separate exams one month apart or with pathologic confirmation) can have serious manifestations. When hypereosinophilia is associated with eosinophil-mediated organ damage or dysfunction, a hypereosinophilic syndrome (HES) exists.With an unpredictable course, eosinophilic infiltration commonly affects the skin (eczema), lung (dyspnea), &GIT (gastritis). However life-threatening damage to the CVS (myocarditis) or the CNS may occ...
Source: Blood - Category: Hematology Authors: Tags: 634. Myeloproliferative Syndromes: Clinical Source Type: research
ConclusionIFI occurred in 9.6% of patients treated with HMA, but was observed in 20.4% of those who were neutropenic on C1D1 of HMA. Another potential risk factor identified was t-MDS versus de novo MDS. Prospective evaluation of mold-active antifungal prophylaxis in patients with MDS or AML who are neutropenic at the start of HMA therapy is warranted.DisclosuresFrey: Novartis: Consultancy; Servier Consultancy: Consultancy. Perl: Arog: Consultancy; NewLink Genetics: Membership on an entity's Board of Directors or advisory committees; Pfizer: Membership on an entity's Board of Directors or advisory committees; Astellas: Con...
Source: Blood - Category: Hematology Authors: Tags: 637. Myelodysplastic Syndromes-Clinical Studies Source Type: research
Conclusion:Sir/Tac has a more profound T-cell suppressive effect than the standard of care combination of Tac/MTX in the early post-transplant period, and particularly compromises recovery of CD8+ T-cells with potential implications in the prevention of aGVHD. Sirolimus when used in-vivo with tacrolimus does not result in increased absolute numbers of Tregs, however it does have a beneficial effect on the Treg:Tcon balance in the first 3 months after transplantation, which may be important in the context of cGVHD prevention. Calcineurin-inhibitor free, sirolimus containing GVHD prophylaxis strategies, incorporating other n...
Source: Blood - Category: Hematology Authors: Tags: 722. Clinical Allogeneic Transplantation: Acute and Chronic GVHD, Immune Reconstitution: Poster I Source Type: research
AstraZeneca said on Friday its immunotherapy drug Imfinzi did not meet the main goal of improving survival rates for patients with the most advanced form of lung cancer, putting pressure on its shares.Reuters Health Information
Source: Medscape Allergy Headlines - Category: Allergy & Immunology Tags: Hematology-Oncology News Source Type: news
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