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https://www.readbyqxmd.com/read/29622867/autologous-stem-cell-transplantation-for-multiple-myeloma-single-centre-experience-from-north-india
#1
Pankaj Malhotra, Uday Yanamandra, Alka Khadwal, Gaurav Prakash, Deepesh Lad, Arjun D Law, Harshit Khurana, M U S Sachdeva, Praveen Bose, Reena Das, Neelam Varma, Subhash Varma
Autologous stem cell transplantation (ASCT) is considered as standard of care in patients with multiple myeloma (MM) patients aged 65 years or younger. We analyzed data of 94 patients of plasma cell dyscrasias who underwent 95 autologous transplants at our institute from October 2003 to Aug 2016. Other than 76 patients of newly diagnosed multiple myeloma, we also transplanted two patients of POEMS syndrome, two patients of plasma cell leukemia, three patients of concurrent light chain deposition disease, three patients of multifocal plasmacytomas, and eight patients of isolated light chain myeloma...
April 2018: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/29595433/research-on-human-embryos-and-reproductive-materials-revisiting-canadian-law-and-policy
#2
Ubaka Ogbogu, Amy Zarzeczny, Jay Baltz, Patrick Bedford, Jenny Du, Insoo Hyun, Yasmeen Jaafar, Andrea Jurisicova, Erika Kleiderman, Yonida Koukio, Bartha Maria Knoppers, Arthur Leader, Zubin Master, Minh Thu Nguyen, Forough Noohi, Vardit Ravitsky, Maeghan Toews
Research involving human embryos and reproductive materials, including certain forms of stem cell and genetic research, is a fast-moving area of science with demonstrated clinical relevance. Canada's current governance framework for this field of research urgently requires review and reconsideration in view of emerging applications. Based on a workshop involving ethics, legal, policy, scientific and clinical experts, we present a series of recommendations with the goal of informing and supporting health policy and decision-making regarding the governance of the field...
February 2018: Healthcare Policy, Politiques de Santé
https://www.readbyqxmd.com/read/29563605/low-temperature-exposure-induces-browning-of-bone-marrow-stem-cell-derived-adipocytes-in-vitro
#3
Ksenija Velickovic, Hilda Anaid Lugo Leija, Ian Bloor, James Law, Harold Sacks, Michael Symonds, Virginie Sottile
Brown and beige adipocytes are characterised as expressing the unique mitochondrial uncoupling protein (UCP)1 for which the primary stimulus in vivo is cold exposure. The extent to which cold-induced UCP1 activation can also be achieved in vitro, and therefore perform a comparable cellular function, is unknown. We report an in vitro model to induce adipocyte browning using bone marrow (BM) derived mesenchymal stem cells (MSC), which relies on differentiation at 32 °C instead of 37 °C. The low temperature promoted browning in adipogenic cultures, with increased adipocyte differentiation and upregulation of adipogenic and thermogenic factors, especially UCP1...
March 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29561088/-chapter-3-governing-the-research-on-embryos
#4
Xavier Bioy, Emmanuelle Rial-Sebbag
The bioethics laws since their first adoption in 1994 until the latest proposals, have been widely commented and analyzed, regarding the provisions related to the legal qualification and the legal status of the embryo and of the embryonic stem cells. The legal issues raised by these hesitations imply instability for both researchers and health professionals about what they can and cannot do when it comes to the embryo and its cells. Thus, while the protection of the embryo was the subject of a consensus until the end of the 2000s, it now appears as the object of a political will, from researchers and state agencies, to support this research...
March 7, 2018: Journal International de Bioéthique et D'éthique des Sciences
https://www.readbyqxmd.com/read/29506484/lymphnode-tuberculosis-in-a-4-year-old-boy-with-relapsed-ganglioneuroblastoma-a-case-report
#5
Karoline van de Loo, Stefan Balzer, Colin R MacKenzie, Thomas M Boemers, Monika Ortmann, Jörg Schaper, Arndt Borkhardt, Hans-Jürgen Laws, Michaela Kuhlen
BACKGROUND: Mycobacterium tuberculosis (M. tuberculosis) disease is a generally well-known problem among immunocompromised adults and children. In pediatric oncology, only few cases of M. tuberculosis disease are reported so far. CASE PRESENTATION: We report a case of concomitant lymphnode tuberculosis in a 4-year-old German boy with relapsed ganglioneuroblastoma. 18 months after the initial diagnosis, relapse with new paravertebral lesions and new lesions in the left lower lobe of the lung and in the perihilar lymphnodes suspicious of metastases of the ganglioneuroblastoma were detected...
March 5, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29479481/can-civil-lawsuits-stem-the-tide-of-direct-to-consumer-marketing-of-unproven-stem-cell-interventions
#6
REVIEW
Claire Horner, Evelyn Tenenbaum, Douglas Sipp, Zubin Master
The sale of unproven stem cell interventions (SCIs) by commercial entities has proliferated in highly developed countries, most notably in the USA. Yet, there have been few criminal prosecutions and regulatory enforcement actions against providers who have violated laws and best practice standards due to the lack of resources and legal ambiguity. While the stem cell research community has invested much in protecting patients and preventing the growth of this industry, some patients are seeking remedies under civil law to hold stem cell clinics responsible for fraudulent practices...
2018: NPJ Regenerative Medicine
https://www.readbyqxmd.com/read/29423027/targeting-the-t-lak-cell-originated-protein-kinase-by-ots964-shrinks-the-size-of-power-law-coded-heterogeneous-glioma-stem-cell-populations
#7
Michiya Sugimori, Yumiko Hayakawa, Masaki Koh, Tomohide Hayashi, Ryoi Tamura, Satoshi Kuroda
Glioblastoma resists chemoradiotherapy, then, recurs to be a fatal space-occupying lesion. The recurrence is caused by re-growing cell populations such as glioma stem cells (GSCs), suggesting that GSC populations should be targeted. This study addressed whether a novel anti-cancer drug, OTS964, an inhibitor for T-LAK cell originated protein kinase (TOPK), is effective in reducing the size of the heterogeneous GSC populations, a power-law coded heterogeneous GSC populations consisting of glioma sphere (GS) clones, by detailing quantitative growth properties...
January 9, 2018: Oncotarget
https://www.readbyqxmd.com/read/29304429/mechanical-behaviour-of-alginate-gelatin-hydrogels-for-3d-bioprinting
#8
Michael Di Giuseppe, Nicholas Law, Braeden Webb, Ryley A Macrae, Lawrence J Liew, Timothy B Sercombe, Rodney J Dilley, Barry J Doyle
Hydrogels comprised of alginate and gelatin have demonstrated potential as biomaterials in three dimensional (3D) bioprinting applications. However, as with all hydrogel-based biomaterials used in extrusion-based bioprinting, many parameters influence their performance and there is limited data characterising the behaviour of alginate-gelatin (Alg-Gel) hydrogels. Here we investigated nine Alg-Gel blends by varying the individual constituent concentrations. We tested samples for printability and print accuracy, compressive behaviour and change over time, and viability of encapsulated mesenchymal stem cells in bioprinted constructs...
March 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29221621/-fertility-preservation-in-oncology
#9
REVIEW
Laure Chaput, Anne-Sophie Grémeau, Solène Vorilhon, Hanae Pons, Cécile Chabrot, Victoria Grèze, Jean-Luc Pouly, Florence Brugnon
Since the improvement of cancer diagnosis and treatment, survival rates of these patients increase. Gonadal damages are frequent consequences of cancer treatments with different evidence of impaired fertility. In this context, fertility preservation should be proposed to patients exposed to potentially gonadotoxic treatments. Different preservation approaches may be proposed depending on patient age, sex, cancer type and type of treatment. The indications of fertility preservation depend on sexual maturity...
January 2018: Bulletin du Cancer
https://www.readbyqxmd.com/read/29173808/epigenetic-and-microenvironmental-alterations-in-bone-marrow-associated-with-ros-in-experimental-aplastic-anemia
#10
Ritam Chatterjee, Sujata Law
Aplastic anemia or bone marrow failure often develops as an effect of chemotherapeutic drug application for the treatment of various pathophysiological conditions including cancer. The long-term bone marrow injury affects the basic hematopoietic population including hematopoietic stem/progenitor cells (HSPCs). The present study aimed in unearthing the underlying mechanisms of chemotherapeutics mediated bone marrow aplasia with special focus on altered redox status and associated effects on hematopoietic microenvironment and epigenetic status of hematopoietic cells...
January 2018: European Journal of Cell Biology
https://www.readbyqxmd.com/read/29156673/induction-of-dise-in-ovarian-cancer-cells-in-vivo
#11
Andrea E Murmann, Kaylin M McMahon, Ashley Haluck-Kangas, Nandini Ravindran, Monal Patel, Calvin Y Law, Sonia Brockway, Jian-Jun Wei, C Shad Thaxton, Marcus E Peter
The death receptor CD95/Fas can be activated by immune cells to kill cancer cells. shRNAs and siRNAs derived from CD95 or CD95 ligand (CD95L) are highly toxic to most cancer cells. We recently found that these sh/siRNAs kill cancer cells in the absence of the target by targeting the 3'UTRs of critical survival genes through canonical RNAi. We have named this unique form of off-target effect DISE (for death induced by survival gene elimination). DISE preferentially kills transformed cells and cancer stem cells...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29144008/a-copper-ii-phenanthroline-metallopeptide-that-targets-and-disrupts-mitochondrial-function-in-breast-cancer-stem-cells
#12
Kristine Laws, Ganka Bineva-Todd, Arvin Eskandari, Chunxin Lu, Nicola O'Reilly, Kogularamanan Suntharalingam
The breast cancer stem cell (CSC) and bulk breast cancer cell potency of a series of metallopeptides containing dichloro(1,10-phenanthroline)copper(II) and various organelle-targeting peptide sequences is reported. The mitochondria-targeting metallopeptide 1 exploits the higher mitochondrial load in breast CSCs over the corresponding non-CSCs and the vulnerability of breast CSCs to mitochondrial damage to potently and selectively kill breast CSCs. Strikingly, 1 reduces the formation and size of mammospheres to a greater extent than salinomycin, an established CSC-potent agent...
January 2, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29142066/characterization-of-sgn-cd123a-a-potent-cd123-directed-antibody-drug-conjugate-for-acute-myeloid-leukemia
#13
Fu Li, May Kung Sutherland, Changpu Yu, Roland B Walter, Lori Westendorf, John Valliere-Douglass, Lucy Pan, Ashley Cronkite, Django Sussman, Kerry Klussman, Michelle Ulrich, Martha E Anderson, Ivan J Stone, Weiping Zeng, Mechthild Jonas, Timothy S Lewis, Maitrayee Goswami, Sa A Wang, Peter D Senter, Che-Leung Law, Eric J Feldman, Dennis R Benjamin
Treatment choices for acute myelogenous leukemia (AML) patients resistant to conventional chemotherapies are limited and novel therapeutic agents are needed. IL3 receptor alpha (IL3Rα, or CD123) is expressed on the majority of AML blasts, and there is evidence that its expression is increased on leukemic relative to normal hematopoietic stem cells, which makes it an attractive target for antibody-based therapy. Here, we report the generation and preclinical characterization of SGN-CD123A, an antibody-drug conjugate using the pyrrolobenzodiazepine dimer (PBD) linker and a humanized CD123 antibody with engineered cysteines for site-specific conjugation...
February 2018: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29112482/regulating-the-advertising-and-promotion-of-stem-cell-therapies
#14
Barbara von Tigerstrom
There are widespread concerns with the ways in which 'unproven' stem cell therapies are advertised to patients. This article explores the potential and limits of using laws that regulate advertising and promotion as a tool to address these concerns. It examines general consumer protection laws and laws and policies on advertising medical products and services, focusing on the USA, Canada and Australia. The content of existing laws and policies covers most of the marketing practices that cause concern, but several systemic factors are likely to limit enforcement efforts...
October 2017: Regenerative Medicine
https://www.readbyqxmd.com/read/29017117/characterisation-of-hyaluronic-acid-methylcellulose-hydrogels-for-3d-bioprinting
#15
Nicholas Law, Brandon Doney, Hayley Glover, Yahua Qin, Zachary M Aman, Timothy B Sercombe, Lawrence J Liew, Rodney J Dilley, Barry J Doyle
Hydrogels containing hyaluronic acid (HA) and methylcellulose (MC) have shown promising results for three dimensional (3D) bioprinting applications. However, several parameters influence the applicability bioprinting and there is scarce data in the literature characterising HAMC. We assessed eight concentrations of HAMC for printability, swelling and stability over time, rheological and structural behaviour, and viability of mesenchymal stem cells. We show that HAMC blends behave as viscous solutions at 4°C and have faster gelation times at higher temperatures, typically gelling upon reaching 37°C...
September 28, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28993845/-new-experimental-strategies-in-cartilage-surgery
#16
REVIEW
L Rackwitz, J C Reichert, O Pullig, U Nöth
BACKGROUND: Cell and growth factor based strategies bear great potential to support the healing processes in cartilage repair and the therapy of osteoarthritic joints. OBJECTIVES: The following review provides an overview of novel experimental strategies for the therapy of focal cartilage defects and osteoarthritis, with emphasis on cell and growth factor based approaches. MATERIALS AND METHODS: The authors summarize their own data regarding the intraarticular injection of stem cells to treat osteoarthritis of the knee and provide a synopsis of the available literature discussing the most significant publications...
November 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28978449/quantitative-deformability-cytometry-rapid-calibrated-measurements-of-cell-mechanical-properties
#17
Kendra D Nyberg, Kenneth H Hu, Sara H Kleinman, Damir B Khismatullin, Manish J Butte, Amy C Rowat
Advances in methods that determine cell mechanical phenotype, or mechanotype, have demonstrated the utility of biophysical markers in clinical and research applications ranging from cancer diagnosis to stem cell enrichment. Here, we introduce quantitative deformability cytometry (q-DC), a method for rapid, calibrated, single-cell mechanotyping. We track changes in cell shape as cells deform into microfluidic constrictions, and we calibrate the mechanical stresses using gel beads. We observe that time-dependent strain follows power-law rheology, enabling single-cell measurements of apparent elastic modulus, Ea , and power-law exponent, β...
October 3, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28976822/accelerating-regenerative-medicine-the-japanese-experiment-in-ethics-and-regulation
#18
Tamra Lysaght
In 2014, the Japanese National Diet introduced new laws aimed at promoting the clinical translation of stem cells and regenerative medicine. The basic action of these laws is to allow the early introduction of regenerative medicine products into the Japanese market through an accelerated approval process, while providing patients with access to certain types of stem cell and cell-based therapies in the context of private clinical practice. While this framework appears to offer enormous opportunities for the translation of stem cell science, it raises ethical challenges that have not yet been fully explored...
September 2017: Regenerative Medicine
https://www.readbyqxmd.com/read/28965331/post-transplant-viral-respiratory-infections-in-the-older-patient-epidemiology-diagnosis-and-management
#19
REVIEW
Nancy Law, Deepali Kumar
Organ and stem cell transplantation has been one of the greatest advances in modern medicine, and is the primary treatment modality for many end-stage diseases. As our population ages, so do the transplant recipients, and with that comes many new challenges. Respiratory viruses have been a large contributor to the mortality and morbidity of solid organ transplant (SOT) and hematopoietic stem cell transplant (HSCT) recipients. Respiratory viruses are generally a long-term complication of transplantation and primarily acquired in the community...
October 2017: Drugs & Aging
https://www.readbyqxmd.com/read/28932846/a-reactive-oxygen-species-generating-cyclooxygenase-2-inhibiting-cancer-stem-cell-potent-tetranuclear-copper-ii-cluster
#20
C Lu, K Laws, A Eskandari, K Suntharalingam
Tetranuclear copper(ii) complexes containing multiple diclofenac and Schiff base moieties, 1-4, are shown to kill bulk cancer cells and cancer stem cells (CSCs) with low micromolar potency. The most effective complex, 1, elicits its cytotoxic effect by elevating the intracellular reactive oxygen species (ROS) levels and inhibiting cyclooxygenase-2 (COX-2) expression.
October 14, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
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