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Bone marrow engraftment

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https://www.readbyqxmd.com/read/27921235/transplantation-of-collagen-scaffold-with-autologous-bone-marrow-mononuclear-cells-promotes-functional-endometrium-reconstruction-via-downregulating-%C3%AE-np63-expression-in-asherman-s-syndrome
#1
Guangfeng Zhao, Yun Cao, Xianghong Zhu, Xiaoqiu Tang, Lijun Ding, Haixiang Sun, Juan Li, Xinan Li, Chenyan Dai, Tong Ru, Hui Zhu, Jingjie Lu, Caimei Lin, Jingmei Wang, Guijun Yan, Huiyan Wang, Lei Wang, Yimin Dai, Bin Wang, Ruotian Li, Jianwu Dai, Yan Zhou, Yali Hu
Asherman's syndrome (AS) is a common disease that presents endometrial regeneration disorder. However, little is known about its molecular features of this aregenerative endometrium in AS and how to reconstruct the functioning endometrium for the patients with AS. Here, we report that ΔNp63 is significantly upregulated in residual epithelial cells of the impaired endometrium in AS; the upregulated-ΔNp63 induces endometrial quiescence and alteration of stemness. Importantly, we demonstrate that engrafting high density of autologous bone marrow mononuclear cells (BMNCs) loaded in collagen scaffold onto the uterine lining of patients with AS downregulates ΔNp63 expression, reverses ΔNp63-induced pathological changes, normalizes the stemness alterations and restores endometrial regeneration...
December 1, 2016: Science China. Life Sciences
https://www.readbyqxmd.com/read/27916592/new-developments-in-cardiac-regeneration
#2
REVIEW
Thi Yen Loan Le, Sujitha Thavapalachandran, Eddy Kizana, James Jh Chong
Numerous pharmacological and device therapies have improved adverse cardiac remodelling and mortality in heart failure. However, none are able to regenerate damaged cardiac tissue. Stem cell based therapies using multipotent (adult) stem cells and pluripotent stem cells are new approaches that could potentially achieve the elusive goal of true cardiac regeneration. Over the past two decades, various stem cell based approaches have been shown to improve left ventricular function in pre-clinical animal models...
November 19, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/27899358/cytohesin-1-regulates-homing-and-engraftment-of-human-hematopoietic-stem-and-progenitor-cells
#3
Justyna Rak, Katie Foster, Katarzyna Potrzebowska, Mehrnaz Safaee Talkhoncheh, Natsumi Miharada, Karolina Komorowska, Therese Torngren, Anders Kvist, Åke Borg, Lena Svensson, Dominique Bonnet, Jonas Larsson
Adhesion is a key component of hematopoietic stem cell regulation mediating homing and retention to the niche in the bone marrow. Here, using an RNA interference screen, we identify cytohesin 1 (CYTH1) as a critical mediator of adhesive properties in primary human cord-blood derived hematopoietic stem and progenitor cells (HSPCs). Knockdown of CYTH1 disrupted adhesion of HSPC to primary human mesenchymal stroma cells (MSCs). Attachment to fibronectin and ICAM1, two integrin ligands, was severely impaired, and CYTH1 deficient cells showed a reduced integrin β1 activation response, suggesting that CYTH1 mediates integrin-dependent functions...
November 29, 2016: Blood
https://www.readbyqxmd.com/read/27890929/extended-time-lapse-in-vivo-imaging-of-tibia-bone-marrow-to-visualize-dynamic-hematopoietic-stem-cell-engraftment
#4
S Kim, L Lin, G A J Brown, K Hosaka, E W Scott
Homing, engraftment and proliferation of hematopoietic stem/progenitor cell (HSC/HPCs) are crucial steps required for success of a bone marrow transplant. Observation of these critical events is limited by the opaque nature of bone. Here we demonstrate how individual HSCs engraft in long bones by thinning one side of the tibia for direct and unbiased observation. Intravital imaging enabled detailed visualization of single Sca-1(+), c-Kit(+), Lineage(-) (SKL) cell migration to bone marrow niches and subsequent proliferation to reconstitute hematopoiesis...
November 28, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27888540/higher-dose-of-cd34-peripheral-blood-stem-cells-is-associated-with-better-survival-after-haploidentical-stem-cell-transplantation-in-pediatric-patients
#5
Yao Chen, Lan-Ping Xu, Kai-Yan Liu, Huan Chen, Yu-Hong Chen, Xiao-Hui Zhang, Yu Wang, Feng-Rong Wang, Wei Han, Jing-Zhi Wang, Chen-Hua Yan, Xiao-Jun Huang
Haploidentical stem cell transplantation (SCT) is increasingly used to treat pediatric patients with malignant or non-malignant hematological disorders. The CD34+ dose of bone marrow or peripheral blood stem cells (PBSCs) has been shown to be an important determinant of the transplant outcome in adults under various preparative regimens. However, knowledge of the effect of the CD34+ dose in pediatric haploidentical SCT is limited. We analyzed the data of 348 pediatric patients (aged 2-18 years) with acute or chronic leukemia, myelodysplastic syndrome (MDS), and other hematological disorders that received a transplant between 2002 and 2012...
November 26, 2016: Clinical Transplantation
https://www.readbyqxmd.com/read/27888014/nonmyeloablative-haploidentical-bone-marrow-transplantation-with-post-transplant-cyclophosphamide-for-pediatric-and-young-adult-patients-with-high-risk-hematologic-malignancies
#6
Orly R Klein, Jessica Buddenbaum, Noah Tucker, Allen R Chen, Christopher J Gamper, David Loeb, Elias Zambidis, Nicolas J Llosa, Jeffrey S Huo, Nancy Robey, Mary Jo Holuba, Yvette L Kasamon, Shannon R McCurdy, Richard Ambinder, Javier Bolaños-Meade, Leo Luznik, Ephraim J Fuchs, Richard J Jones, Kenneth R Cooke, Heather J Symons
Lower intensity conditioning regimens for haploidentical blood or marrow transplantation (BMT) are safe and efficacious for adult patients with hematologic malignancies. We report data for pediatric/young adult patients with high-risk hematologic malignancies (n=40) treated with nonmyeloablative haploidentical BMT with post-transplantation cyclophosphamide (PT/Cy) from 2003-2015. Patients received a preparative regimen of fludarabine, cyclophosphamide, and total body irradiation. Post-transplant immunosuppression consisted of cyclophosphamide, mycophenolate mofetil, and tacrolimus...
November 22, 2016: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/27882356/intra-osseous-co-transplantation-of-cd34-selected-umbilical-cord-blood-and-mesenchymal-stromal-cells
#7
Leland Metheny, Saada Eid, Karen Lingas, Jane Reese, Howard Meyerson, Alexander Tong, Marcos de Lima, Alex Y Huang
Human mesenchymal stromal cells (MSC) have been shown to support the growth and differentiation of hematopoietic stem cells (HSC). We hypothesized that intra-osseous (IO) co-transplantation of MSC and umbilical cord blood (UCB) may be effective in improving early HSC engraftment, as IO transplantation has been demonstrated to enhance UCB engraftment in NOD SCID-gamma (NSG) mice. Following non-lethal irradiation (300rads), 6 groups of NSG mice were studied: 1) intravenous (IV) UCB CD34(+) cells, 2) IV UCB CD34(+) cells and MSC, 3) IO UCB CD34(+) cells, 4) IO UCB CD34(+) cells and IO MSC, 5) IO UCB CD34(+) cells and IV MSC, and 6) IV UCB CD34(+) and IO MSC...
2016: Hematol Med Oncol
https://www.readbyqxmd.com/read/27880980/impact-of-total-body-irradiation-on-successful-neutrophil-engraftment-in-unrelated-bone-marrow-or-cord-blood-transplantation
#8
Hideki Nakasone, Fuji Shigeo, Kimikazu Yakushijin, Makoto Onizuka, Akihito Shinohara, Kazuteru Ohashi, Koichi Miyamura, Naoyuki Uchida, Minoko Takanashi, Tatsuo Ichinohe, Yoshiko Atsuta, Takahiro Fukuda, Masao Ogata
Total body irradiation (TBI) has been thought to promote donor cell engraftment in allogeneic hematopoietic cell transplantation (HCT) from alternative donors. However, recent progress in HCT strategies may affect the clinical significance of TBI on neutrophil engraftment. With the use of a Japanese transplant registry database, we analyzed 3933 adult recipients (>15 y.o.) who underwent HCT between 2006 and 2013 from an 8/8 HLA-matched unrelated bone marrow donor (MUD, n=1367), an HLA-mismatched unrelated bone marrow donor (MMUD, n=1102), or unrelated cord blood (CBT, n=1464)...
November 23, 2016: American Journal of Hematology
https://www.readbyqxmd.com/read/27876094/nitric-oxide-has-contrasting-age-dependent-effects-on-the-functionality-of-murine-hematopoietic-stem-cells
#9
Sapana Jalnapurkar, Shweta Singh, Moirangthem Ranjita Devi, Lalita Limaye, Vaijayanti Kale
BACKGROUND: The success of hematopoietic stem cell (HSC) transplantation is dependent on the quality of the donor HSCs. Some sources of HSCs display reduced engraftment efficiency either because of inadequate number (e.g., fetal liver and cord blood), or age-related dysfunction (e.g. in older individuals). Therefore, use of pharmacological compounds to improve functionality of HSCs is a forefront research area in hematology. METHODS: Lineage negative (Lin(-)) cells isolated from murine bone marrow or sort-purified Lin(-)Sca-1(+)c-Kit(+)CD34(-) (LSK-CD34(-)) were treated with a nitric oxide donor, sodium nitroprusside (SNP)...
November 22, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27872864/f4-80-host-macrophages-are-a-barrier-to-murine-embryonic-stem-cell-derived-hematopoietic-progenitor-engraftment-in-vivo
#10
Heather L Thompson, Nico van Rooijen, Bryce T McLelland, Jennifer O Manilay
Understanding how embryonic stem cells and their derivatives interact with the adult host immune system is critical to developing their therapeutic potential. Murine embryonic stem cell-derived hematopoietic progenitors (ESHPs) were generated via coculture with the bone marrow stromal cell line, OP9, and then transplanted into NOD.SCID.Common Gamma Chain (NSG) knockout mice, which lack B, T, and natural killer cells. Compared to control mice transplanted with adult lineage-negative bone marrow (Lin(-) BM) progenitors, ESHP-transplanted mice attained a low but significant level of donor hematopoietic chimerism...
2016: Journal of Immunology Research
https://www.readbyqxmd.com/read/27865162/irradiation-induced-secretion-of-bmp4-by-marrow-cells-causes-marrow-adipogenesis-post-myelosuppression
#11
Manmohan S Bajaj, Rohan S Kulkarni, Suprita S Ghode, Lalita S Limaye, Vaijayanti P Kale
Pre-transplant myeloablation is associated with marrow adipogenesis, resulting in delayed engraftment of hematopoietic stem cells (HSCs). This is strongly undesirable, especially when the donor HSCs are fewer in numbers or have compromised functionality. The molecular mechanisms behind irradiation-induced marrow adipogenesis have not been extensively investigated. Here we show that bone marrow (BM) cells, especially T-cells and stromal cells, express and secrete copious amounts of BMP4 in response to irradiation, which causes the bone marrow stromal cells to commit to adipocyte lineage, thereby contributing to an increase in bone marrow adipogenesis...
November 9, 2016: Stem Cell Research
https://www.readbyqxmd.com/read/27861292/long-term-tolerance-toward-haploidentical-vascularized-composite-allograft-transplantation-in-a-canine-model-using-bone-marrow-or-mobilized-stem-cells
#12
Jeff Chang, Scott S Graves, Tiffany Butts-Miwongtum, George E Sale, Rainer Storb, David Woodbridge Mathes
BACKGROUND: The development of safe and reliable protocols for the transplantation of the face and hands may be accomplished with animal modeling of transplantation of vascularized composite allografts (VCA). Previously, we demonstrated that tolerance to a VCA could be achieved after canine recipients were simultaneously given marrow from a dog leukocyte antigen-identical donor. In the present study, we extend those findings across a dog leukocyte antigen mismatched barrier. METHODS: Eight recipient dogs received total body irradiation (4...
December 2016: Transplantation
https://www.readbyqxmd.com/read/27859216/cooperation-of-mll-af10-om-lz-with-ptpn11-activating-mutation-induced-monocytic-leukemia-with-a-shorter-latency-in-a-mouse-bone-marrow-transplantation-model
#13
Jen-Fen Fu, Sung-Tzu Liang, Ying-Jung Huang, Kung-Hao Liang, Tzung-Hai Yen, Der-Cherng Liang, Lee-Yung Shih
PTPN11 mutation, a RAS signaling pathway mutation, is associated with MLL translocations in acute leukemia. A girl with MLL/AF10 AML was found to carry PTPN11(G503A) . To study the impact of PTPN11 (G503A) cooperating with MLL/AF10 on leukemogenesis, we established a retroviral transduction/transplantation mouse model. Compared with the MLL/AF10(OM-LZ) leukemia cells harboring PTPN11 (wt) , the cells harboring PTPN11(G503A) were hypersensitive to GM-CSF and IL3, and more resistant to death upon treatment with daunorubicin but sensitive to cytarabine...
November 14, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27858286/hypoxic-preconditioning-augments-the-therapeutic-efficacy-of-bone-marrow-stromal-cells-in-a-rat-ischemic-stroke-model
#14
Jin Chen, Yuanyuan Yang, Lihua Shen, Wensen Ding, Xiang Chen, Erbing Wu, Kefu Cai, Guohua Wang
Transplantation of bone marrow stromal cells (BMSCs) is a promising therapy for ischemic stroke, but the poor oxygen environment in brain lesions limits the efficacy of cell-based therapies. Here, we tested whether hypoxic preconditioning (HP) could augment the efficacy of BMSC transplantation in a rat ischemic stroke model and investigated the underlying mechanism of the effect of HP. In vitro, BMSCs were divided into five passage (P0, P1, P2, P3, and P4) groups, and HP was applied to the groups by incubating the cells with 1% oxygen for 0, 4, 8, 12, and 24 h, respectively...
November 18, 2016: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/27853082/early-improvement-in-marrow-fibrosis-following-haploidentical-stem-cell-transplantation-for-a-patient-with-myelodysplastic-syndrome-with-bone-marrow-fibrosis
#15
Shuichiro Takahashi, Riko Tsumanuma, Keiko Aizawa, Mitsumasa Osakabe, Kunihiko Maeda, Ejiro Omoto
The prognosis for myelodysplastic syndrome with bone marrow fibrosis (MDS-F) is worse than the prognosis of MDS without fibrosis. Hematopoietic stem cell transplantation (HSCT) is the only curative therapy; however, the indications and the procedures involved in HSCT remain unclear. We herein describe a 69-year-old Japanese man with MDS-F who received haploidentical HSCT and post-transplantation cyclophosphamide. Although the first HSCT resulted in secondary graft failure, the second HSCT using PTCy led to successful engraftment after early improvement in fibrosis...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27832981/haploidentical-bone-marrow-transplantation-with-post-transplant-cyclophosphamide-for-children-and-adolescents-with-fanconi-anemia
#16
Carmem Bonfim, Lisandro Ribeiro, Samantha Nichele, Gisele Loth, Marco Bitencourt, Adriana Koliski, Cilmara Kuwahara, Ana Luiza Fabro, Noemi F Pereira, Daniela Pilonetto, Monica Thakar, Hans-Peter Kiem, Kristin Page, Ephraim J Fuchs, Mary Eapen, Ricardo Pasquini
We describe haploidentical bone marrow transplantation with post-transplant cyclophosphamide (PT-CY) for 30 patients with Fanconi anemia (FA). Twenty-six patients were transplanted upfront, and the preparatory regimens included fludarabine 150 mg/m(2) + total body irradiation 200 to 300 cGy ± CY 10 mg/kg without (n = 12) or with rabbit antithymocyte globulin (r-ATG) 4 to 5 mg/kg (n = 14). Four patients were rescued after primary or secondary graft failure after related or unrelated donor transplantation with the above regimen with (n = 2) or without r-ATG (n = 2)...
November 7, 2016: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/27827995/nod-scid-gamma-mice-are-permissive-to-allogeneic-hsc-transplantation-without-prior-conditioning
#17
Tom Verbiest, Rosemary Finnon, Natalie Brown, Paul Finnon, Simon Bouffler, Christophe Badie
Scid hematopoietic stem cells (HSCs) have an intrinsic defect in their maintenance within the bone marrow (BM) niche which facilitates HSC transplantation without the absolute requirement of prior conditioning. Nevertheless, NOD scid mice have a significantly altered life span due to early development of thymic lymphomas, which compromises the ability to study the long-term fate of exogenous HSCs and their progeny. Here, we present data on the transplantation of HSCs into NOD scid gamma (NSG) mice to achieve long-term engraftment without prior conditioning...
November 7, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27821558/endometriosis-and-stem-cell-trafficking
#18
Nicola Pluchino, Hugh S Taylor
Adult stem cells have a major role in endometrial physiology, remodeling, and repair, but they also have a critical role in the development and progression of endometriosis. Bone marrow-derived stem cells (BMDSCs) engraft eutopic endometrium and endometriotic lesions, showing stromal and epithelial fate. Nevertheless, circulating BMDSCs are in limited supply, and the presence of endometriosis depletes stem cells from the blood circulation, preventing their homing in the uterus. Furthermore, stem cells migrate from endometriotic lesion into the uterus, leading to a dysfunctional endometrium...
December 2016: Reproductive Sciences
https://www.readbyqxmd.com/read/27819671/protease-activated-receptor-1-inhibits-proliferation-but-enhances-leukemia-stem-cell-activity-in-acute-myeloid-leukemia
#19
S Goyama, M Shrestha, J Schibler, L Rosenfeldt, W Miller, E O'Brien, B Mizukawa, T Kitamura, J S Palumbo, J C Mulloy
Eradication of leukemia stem cells (LSCs) is the ultimate goal of treating acute myeloid leukemia (AML). We recently showed that the combined loss of Runx1/Cbfb inhibited the development of MLL-AF9-induced AML. However, c-Kit(+)/Gr-1(-) cells remained viable in Runx1/Cbfb-deleted cells, indicating that suppressing RUNX activity may not eradicate the most immature LSCs. In this study, we found upregulation of several hemostasis-related genes, including the thrombin-activatable receptor PAR-1 (protease-activated receptor-1), in Runx1/Cbfb-deleted MLL-AF9 cells...
November 7, 2016: Oncogene
https://www.readbyqxmd.com/read/27817105/neuro-regeneration-therapy-using-human-muse-cells-is-highly-effective-in-a-mouse-intracerebral-hemorrhage-model
#20
Norihito Shimamura, Kiyohide Kakuta, Liang Wang, Masato Naraoka, Hiroki Uchida, Shohei Wakao, Mari Dezawa, Hiroki Ohkuma
A novel type of non-tumorigenic pluripotent stem cell, the Muse cell (multi-lineage, differentiating stress enduring cell), resides in the connective tissue and in cultured mesenchymal stem cells (MSCs) and is reported to differentiate into multiple cell types according to the microenvironment to repair tissue damage. We examined the efficiency of Muse cells in a mouse intracerebral hemorrhage (ICH) model. Seventy μl of cardiac blood was stereotactically injected into the left putamen of immunodeficient mice...
November 5, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
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