Abstract:
:This study aimed to assess the potential of human cord blood (CB) cells to engraft in the xenogenic non-obese diabetic/severe combined immunodeficient (NOD/SCID) mouse model after in vitro expansion culture. We also studied the quality of human haemopoiesis arising from the transplantation of fresh or expanded cells in this model. Cord blood CD34(+) cells were cultured for 3, 7 or 10 d with stem cell factor, Flt3, thrombopoietin, interleukin 3 (IL-3), IL-6 and granulocyte colony-stimulating factor, all at 10 ng/ml in serum-replete conditions. Transplantation of mice with fresh CB containing 3 x 10(4) CD34(+) cells and 1-2 SCID repopulating cells (SRC) resulted in a median of 7.4% (0.4%-76.8%) human engraftment. When mice received the expanded product of 1-2 SRC, the ability to repopulate NOD/SCID mice was maintained even after 10 d of in vitro culture. Serial dilution of the expanded cells suggested that in vitro expansion had increased SRC numbers two- to fourfold. Expanded SRC produced long-term culture-initiating cells, clonogenic cells and CD34(+) cells in the same proportions as fresh cells after successful engraftment. Therefore, expanded SRC were able to differentiate in the same way as fresh SRC. There was a trend towards lower levels of engraftment when d 7 cultured cells were transplanted (median engraftment 0.8%, range 0.0-24.0%) compared with 1-2 fresh SRC. Our data suggest that this is owing to reduced proliferation of cultured cells in vivo. By utilizing limiting numbers of CB SRC, we confirmed that the engraftment potential of SRC in the NOD/SCID model was preserved after in vitro expansion. Furthermore, dilution experiments strongly suggest two- to fourfold expansion of SRC in vitro. These studies are relevant for developing clinical stem cell expansion strategies.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Denning-Kendall PA,Evely R,Singha S,Chapman M,Bradley BA,Hows JMdoi
10.1046/j.1365-2141.2002.03254.xsubject
Has Abstractpub_date
2002-01-01 00:00:00pages
218-28issue
1eissn
0007-1048issn
1365-2141pii
3254journal_volume
116pub_type
杂志文章abstract::Kinetic studies were performed to determine the clearance of iodinated transferrin in hypotransferrinaemic mice, as compared to normal animals. Clearance of i.v. (and i.p.) administered radiolabelled protein in homozygous (hpx/hpx) mice was significantly faster than in heterozygous (hpx/+) and wild-type control (+/+) ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1995.tb08926.x
更新日期:1995-01-01 00:00:00
abstract::The use of allogeneic haematopoietic stem cell transplantation (Allo-HSCT) is a standard treatment option for many patients with haematological malignancies. Historically, patients requiring intensive care unit (ICU) admission for transplant-related toxicities have fared extremely poorly, with high ICU mortality rates...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.12294
更新日期:2013-05-01 00:00:00
abstract::Reduced-intensity conditioning (RIC) regimens for allogeneic haematopoietic stem cell transplantation (SCT) have been shown to lead to engraftment of donor stem cells without the severe extra-haematological toxicities of traditional myeloablative transplants. Between December 1998 and December 2000, 76 patients underw...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1046/j.1365-2141.2001.03153.x
更新日期:2001-12-01 00:00:00
abstract::A highly sensitive Y-microsatellite amplification system was developed for the detection of post bone marrow transplantation (BMT) chimaerism. The system is able to detect the DNA equivalent of a single male cell in a background of 10(5) female cells. For clinical applications it has the distinct advantage that the po...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1995.tb08380.x
更新日期:1995-03-01 00:00:00
abstract::Adult T-cell leukaemia lymphoma (ATLL) is an aggressive disease caused by the human T-lymphotropic virus 1 (HTLV-I) with a short survival. Responses to interferon alpha (IFN-alpha) and zidovudine (AZT) have been documented but not with long-term follow-up. We treated 15 ATLL patients with IFN and AZT. Eleven patients ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2001.02794.x
更新日期:2001-06-01 00:00:00
abstract::Minor histocompatibility antigens (mHAs) are major histocompatibility complex (MHC)-associated peptides, which trigger T-cell responses that mediate graft versus host disease (GVHD) and graft versus leukaemia effects. We recently identified a new mHA epitope, termed ACC-1, which is presented by HLA-A*2402 and encoded ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2004.04823.x
更新日期:2004-03-01 00:00:00
abstract::Little is known about the impact of cytomegalovirus (CMV) infections that occur after human leucocyte antigen (HLA)-matched unrelated donor (MUD) non-myleoablative haematopoietic stem cell transplantation (HCT). We analysed the incidence, onset and outcomes of CMV infections in 59 recipients of MUD and in 109 recipien...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2003.04671.x
更新日期:2003-11-01 00:00:00
abstract::Radiolabelled antiCD-20 antibodies have demonstrated single agent activity in relapsed diffuse large B-cell lymphoma (DLBCL). The S0433 clinical trial enrolled patients with newly diagnosed, advanced stage or bulky stage II, histologically confirmed DLBCL. Patients received six cycles of R-CHOP (rituximab, cyclophosph...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1111/bjh.12906
更新日期:2014-08-01 00:00:00
abstract::Results of bone marrow transplantation (BMT) in patients with Fanconi's anaemia (FA) in transformation are very poor and only a few cases with favourable outcome have been reported. We present the follow-up of two FA-myelodysplastic syndrome (MDS) patients with monosomy 7 and complex karyotype implicating chromosome 1...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2000.02334.x
更新日期:2000-10-01 00:00:00
abstract::Massive genomic analyses have underscored the diversity of chronic lymphocytic leukaemia (CLL) between patients. Genetic heterogeneity of tumour clones within a patient may fuel tumour evolution. Several recurrently deregulated intra-cellular pathways are candidates for targeted therapies that are very promising and a...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/bjh.14719
更新日期:2017-09-01 00:00:00
abstract::FLT3-internal tandem duplication (ITD) mutations are heterogeneous with regards to length and proportion of DNA harbouring the mutation and the expression level of FLT3 also varies widely, however very little is known about the biological effects of these variables. We studied FLT3-associated biological parameters in ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2009.07901.x
更新日期:2009-12-01 00:00:00
abstract::The addition of radioimmunotherapy to conventional and reduced-intensity conditioning has been shown to be feasible and effective. Within an ongoing prospective phase II trial, 22 patients with advanced myeloid malignancies and a median age of 65 years (range 54-76) received anti-CD66 Rhenium radioimmunotherapy follow...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.2009.08025.x
更新日期:2010-03-01 00:00:00
abstract::Between 1984 and 1992, 21 patients with chronic myeloid leukaemia (CML) in chronic phase (CP) were treated with high-dose chemotherapy (or chemoradiotherapy) followed by autografting with unmanipulated peripheral blood stem cells (PBSC). 12 of these patients survive at a median of 82 months from the time of autografti...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1994.tb03255.x
更新日期:1994-01-01 00:00:00
abstract::Kinetic analysis of a single intravenous injection of 100 mg iron(III) hydroxide-sucrose complex (Venofer) mixed with 52Fe(III) hydroxide-sucrose as a tracer was followed for 3-6 h in four generally anaesthetized, artificially ventilated minipigs using positron emission tomography (PET). The amount of injected radioac...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1999.01170.x
更新日期:1999-02-01 00:00:00
abstract::We treated 26 patients with hairy cell leukaemia (HCL) with 2-chlorodeoxyadenosine, including nine with abdominal lymphadenopathy and of whom two had HCL-variant; 18 were previously treated. The overall response in 23 evaluable HCL patients was 100% with 87% complete remission (CR). The CR rate was 57% in patients wit...
journal_title:British journal of haematology
pub_type: 临床试验,杂志文章
doi:10.1046/j.1365-2141.1996.5041045.x
更新日期:1996-05-01 00:00:00
abstract::A novel BCR-ABL transcript was detected by multiplex RT-PCR in a patient with Philadelphia chromosome (Ph) positive chronic myelogenous leukaemia (CML) in accelerated phase. Sequencing of the aberrant transcript revealed an in-frame e2a2 fusion that included a 9 basepairs insertion. Cytogenetic analysis showed t(9;22)...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1999.01640.x
更新日期:1999-09-01 00:00:00
abstract::Eighty-two patients with bleeding, disorders registered with our centre were screened for infection with hepatitis G virus (HGV). 80 patients were positive for hepatitis C (HCV) antibodies, 66 of whom (83%) were HCV PCR positive. 11 patients (13%) were HGV RNA-positive, a similar prevalence rate to that of other studi...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1997.4133220.x
更新日期:1997-11-01 00:00:00
abstract::The clinical significance of Aspergillus fungaemia in the setting of a deep-seated aspergillosis has not been clearly established. Among 107 microbiologically documented Aspergillus infections in patients with haematological diseases observed over a 17-year period, blood cultures grew Aspergillus species from 10 cases...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1046/j.1365-2141.2001.02901.x
更新日期:2001-07-01 00:00:00
abstract::Flow cytometry was used to determine the percentage and number of circulating CD34+ cells in fetal blood from 100 pregnancies at 13-38 weeks gestation. When expressed as a percentage of the total number of lymphocytes, the proportion of CD34+ cells decreased exponentially from a mean of 11.1% (9.2 x 10(7)/l) at 13 wee...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1994.tb08328.x
更新日期:1994-07-01 00:00:00
abstract::We investigated the molecular basis of factor VII deficiency in a Japanese patient and identified a novel missense mutation in the signal sequence of the gene. Factor VII activity and antigen level measured in the patient were 10.7% and 11% of normal, respectively. All exons except 1B and the 5'-flanking region contai...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.1998.00666.x
更新日期:1998-04-01 00:00:00
abstract::Polycomb group (PcG) proteins are involved in the stable transmittance of the repressive state of their gene targets throughout the cell cycle. Mis-expression of PcG proteins can lead to proliferative defects and tumorigenesis. There are two separate multimeric PcG protein complexes: an EED-EZH2-containing complex and...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2001.02641.x
更新日期:2001-03-01 00:00:00
abstract::We report a case of acquired sideroblastic anaemia precipitated by progesterone. On two separate occasions, over 15 years apart, the patient developed sideroblastic anaemia with iron overload shortly after the administration of progesterone. No other cause for sideroblastic anaemia was found, and treatment with folic ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1994.tb06753.x
更新日期:1994-08-01 00:00:00
abstract::Human blood platelets were stored in autologous plasma at 4 degrees C or 22 degrees C and their surface changes were probed with three lectins--wheat germ agglutinin, lentil lectin and concanavalin A. Platelets stored at either temperature for different times showed increased sensitivity to lectins. Lectins which were...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1988.tb02436.x
更新日期:1988-09-01 00:00:00
abstract::A patient with familial analpha-lipoproteinaemia (Tangier disease) was found to have stomatocytosis and haemolytic anaemia. The analysis of the red cell membrane constituents revealed a low cholesterol content (90 nmol/ml red cells, control 130 nmol/ml red cells), a decreased cholesterol/phospholipid ratio (0.54, cont...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1989.tb07694.x
更新日期:1989-06-01 00:00:00
abstract::Relapse of childhood acute lymphoblastic leukaemia (ALL) involving the eye is a rare but challenging problem. Twenty cases occurred in patients treated on the Medical Research Council United Kingdom Acute Lymphoblastic Leukaemia XI and ALL97 trials between 1991 and 2001, representing 2.2% of ALL relapses. Seventeen oc...
journal_title:British journal of haematology
pub_type: 杂志文章,多中心研究
doi:10.1046/j.1365-2141.2003.04280.x
更新日期:2003-04-01 00:00:00
abstract::A 14-month-old child who had a haemolytic episode when he was 5 years old, and with psychomotor retardation, was found to have decreased red cell hexokinase activity. The mutant enzyme was characterized by an increased affinity for glucose associated with an increased inhibition constant for glucose-1,6-diphosphate. A...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1985.tb04058.x
更新日期:1985-09-01 00:00:00
abstract::Cytometry has become important in the detection and determination of risk of monoclonal B-cell lymphocytosis; methodology has changed, and will continue to change, as cytometric technology changes. ...
journal_title:British journal of haematology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2141.2007.06855.x
更新日期:2007-12-01 00:00:00
abstract::Ex vivo expansion of primitive human haematopoietic stem cells (HSC) is clinically relevant for stem cell transplantation and gene therapy. Here, we demonstrate the selective expansion of CD34+CD38- cells from purified CD34+ cells upon stimulation with Flt3-ligand, stem cell factor and thrombopoietin. Over a 100-fold ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1046/j.1365-2141.2002.03370.x
更新日期:2002-04-01 00:00:00
abstract::In this study we have investigated the molecular basis for a mild form of beta-thalassaemia in three patients of Italian descent. In two, belonging to different families and affected by a mild and late-presenting form of thalassaemia major, direct sequencing of amplified DNA detected a C----T substitution at position ...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/j.1365-2141.1992.tb08904.x
更新日期:1992-02-01 00:00:00
abstract::Sickle cell disease (SCD) in Saudi patients from the Eastern Province is associated with the Arab-Indian (AI) HBB (β-globin gene) haplotype. The phenotype of AI SCD in children was described as benign and was attributed to their high fetal haemoglobin (HbF). We conducted a hospital-based study to assess the pattern of...
journal_title:British journal of haematology
pub_type: 杂志文章
doi:10.1111/bjh.12650
更新日期:2014-02-01 00:00:00