Search results for: CD34
#38011643 
2023/11/23
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Screening and Identifying Reference Genes for Erythrocyte Production from Cord Blood CD34+ Cells Exposed to Hypoxia.
Cord blood (CB) CD34+ cells have the potential to be used to achieve artificial hematopoiesis because of their ability to expand and differentiate in multiple directions. However, the mechanism and molecular changes underlying such differentiation are still unclear. The differentiation of CB CD34+ cells is generally driven by subtle changes in gene expression. A crucial method for examining gene expression is quantitative real-time polymerase chain reaction, but the accuracy of the results is dependent on the use of reliable reference genes. Here, the transcription levels of 10 novel candidate reference genes (, , , , , , , , , and ) and 8 traditional reference genes (, , , , , , , ) in CB CD34+ cells under different oxygen concentrations were screened and evaluated by using the geNorm and NormFinder algorithms. Comprehensive analysis conducted by RefFinder online tool showed that (a traditional reference gene) and (a novel reference gene) had the most stable expression, whereas and were the least suitable reference genes under these conditions. These results may serve as a basis for selecting reference genes with stable expression for more accurate normalization under different oxygen concentration stimulation during CB CD34+ cells differentiation.Jun Xiao, Zhicai Li, Xiaowei Li, Huifen Lei, Fangyuan Meng, Cuiying Li
2138 related Products with: Screening and Identifying Reference Genes for Erythrocyte Production from Cord Blood CD34+ Cells Exposed to Hypoxia.
1.00 flask100 extractions100ml30ml100 extractions1 Unit10ml100ml10ml0.1ml (1mg/ml)30ml30ml
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#38010569 2023/11/27
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Effectiveness of venetoclax and azacytidine against myeloid/natural killer cell precursor acute leukemia.
Myeloid/natural killer (NK) cell precursor acute leukemia (MNKPL) is a rare leukemia subtype that possibly originates from precursor NK cells. The disease has a poor prognosis, and information on its treatment is lacking. We herein report the first case of a 46-year-old woman with MNKPL who was refractory to two lines of acute myeloid leukemia (AML)-type intensive chemotherapy but was successfully treated with venetoclax and azacytidine (VEN/AZA). She was diagnosed with MNKPL based on the conformations of immature lymphoblastoid morphology without myeloperoxidase reactivity that showed a CD7/CD33/CD34/CD56/HLA-DR positive phenotype and extramedullary regions. The disease was refractory to induction therapy with daunorubicin and cytarabine (DNR/Ara-C) and to reinduction therapy with mitoxantrone, etoposide, and cytarabine (MEC). After two lines of induction chemotherapy, massive pericardial and pleural effusion was found, and was suspected to be extramedullary lesions. The patient developed cardiac tamponade and required pericardiocentesis. Thus, VEN/AZA was administered as third-line therapy. After two cycles of VEN/AZA, the pericardial and pleural effusion disappeared, and complete remission was achieved. The patient received post-transplant cyclophosphamide-based haploidentical transplantation and has stayed relapse-free as of her last follow-up examination 2 years after diagnosis.Ichiro Shiomi, Soichiro Nakako, Takahiko Nakane, Yumi Ogawa, Taku Araki, Yotaro Fujitani, Ryosuke Yamamura, Masayuki Hino, Hirohisa Nakamae
2241 related Products with: Effectiveness of venetoclax and azacytidine against myeloid/natural killer cell precursor acute leukemia.
200 1 mg96T25 100ul5 1 mg100.00 ug100 µg96T 25 ml Ready-to-use
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#38008596 2023/11/17
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Immunophenotypic markers for the evaluation of minimal/measurable residual disease in acute megakaryoblastic leukemia.
Acute megakaryoblastic leukemia is characterized by heterogeneous biology and clinical behavior. Immunophenotypic characteristics include the expression of megakaryocytic differentiation markers (e.g. CD41, CD42a, CD42b, CD61) associated with immaturity markers (CD34, CD117, HLA-DR) and myeloid markers (e.g. CD13, CD33) and even with lymphoid cross-lineage markers (e.g. CD7, CD56). Although the diagnostic immunophenotype has already been well described, given the rarity of the disease, its immunophenotypic heterogeneity and post-therapeutic instability, there is no consensus on the combination of monoclonal markers to detect minimal/measurable residual disease (MRD). Currently, MRD is an important tool for assessing treatment efficacy and prognostic risk. In this study, we evaluated the immunophenotypic profile of MRD in a retrospective cohort of patients diagnosed with acute megakaryoblastic leukemia, to identify which markers, positive or negative, were more stable after treatment and which could be useful for MRD evaluation. The expression profile of each marker was evaluated in sequential MRD samples. In conclusion, the markers evaluated in this study can be combined in an MRD immunophenotypic panel to investigate for megakaryoblastic leukemia. Although this study is retrospective and some data are missing, the information obtained may contribute to prospective studies to validate more specific strategies in the detection of MRD in acute megakaryoblastic leukemia.Carina Maria Pinto, Camila Marques Bertolucci, Alef Rafael Severino, Juliana Fernanda Dos Santos Tosi, Maura R V Ikoma-Colturato
1088 related Products with: Immunophenotypic markers for the evaluation of minimal/measurable residual disease in acute megakaryoblastic leukemia.
1 G500 tests 50 UG500 tests
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#38006344 2023/09/25
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Correlation of microvessel density with histopathological parameters of carcinoma breast.
Microvessel density (MVD) is a surrogate measure of tumour angiogenesis, and is well known for over two decades to identify individuals with a high risk of recurrence with greater prevision than traditional markers. This study aims to assess the utility of MVD and its correlation with the Nottingham Prognostic Index (NPI) and other routine histopathological parameters in carcinoma breast.Aditi V Goyal, Samarth Shukla, Sourya Acharya, Sunita Vagha, Suhas Jajoo
1887 related Products with: Correlation of microvessel density with histopathological parameters of carcinoma breast.
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#38003400 2023/11/11
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BR55 Ultrasound Molecular Imaging of Clear Cell Renal Cell Carcinoma Reflects Tumor Vascular Expression of VEGFR-2 in a Patient-Derived Xenograft Model.
Standard imaging cannot reliably predict the nature of renal tumors. Among malignant renal tumors, clear cell renal cell carcinoma (ccRCC) is the most common histological subtype, in which the vascular endothelial growth factor 2 (VEGFR-2) is highly expressed in the vascular endothelium. BR55, a contrast agent for ultrasound imaging, consists of gas-core lipid microbubbles that specifically target and bind to the extracellular portion of the VEGFR-2. The specific information provided by ultrasound molecular imaging (USMI) using BR55 was compared with the vascular tumor expression of the VEGFR-2 by immunohistochemical (IHC) staining in a preclinical model of ccRCC. Patients' ccRCCs were orthotopically grafted onto Nod-Scid-Gamma (NSG) mice to generate patient-derived xenografts (PdX). Mice were divided into four groups to receive either vehicle or axitinib an amount of 2, 7.5 or 15 mg/kg twice daily. Perfusion parameters and the BR55 ultrasound contrast signal on PdX renal tumors were analyzed at D0, D1, D3, D7 and D11, and compared with IHC staining for the VEGFR-2 and CD34. Significant Pearson correlation coefficients were observed between the area under the curve (AUC) and the CD34 (0.84, < 10), and between the VEGFR-2-specific signal obtained by USMI and IHC (0.72, < 10). USMI with BR55 could provide instant, quantitative information on tumor VEGFR-2 expression to characterize renal masses non-invasively.Jean Courcier, Ingrid Leguerney, Baya Benatsou, Sibylle Pochon, Isabelle Tardy, Laurence Albiges, Paul-Henry Cournède, Alexandre De La Taille, Nathalie Lassau, Alexandre Ingels
1676 related Products with: BR55 Ultrasound Molecular Imaging of Clear Cell Renal Cell Carcinoma Reflects Tumor Vascular Expression of VEGFR-2 in a Patient-Derived Xenograft Model.
100ug Lyophilized
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#37996648 2023/11/23
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Motixafortide: First Approval.
Motixafortide (APHEXDA) is a selective C-X-C motif chemokine receptor 4 (CXCR4) inhibitor being developed by BioLineRx under licence from Biokine Therapeutics for the mobilization of haematopoietic stem cells (HSCs) and the treatment of various cancers. On 11 September 2023, motixafortide was approved in the USA for use in combination with filgrastim [granulocyte colony stimulating factor (G-CSF)] to mobilize HSCs to the peripheral blood for collection and subsequent autologous transplantation in patients with multiple myeloma. Motixafortide has been granted Orphan Drug Designation for the treatment of pancreatic cancer in the EU and the USA, and for the treatment of acute myeloid leukaemia in the USA. Clinical development is ongoing for the mobilization of CD34 HSCs for gene therapy in patients with sickle cell disease. This article summarizes the milestones in the development of motixafortide leading to this first approval.Sheridan M Hoy
1796 related Products with: Motixafortide: First Approval.
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#37995155 2023/11/23
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Evaluating the Effect of Gestational Exposure to Perfluorohexane Sulfonate on Placental Development in Mice Combining Alternative Splicing and Gene Expression Analyses.
Perfluorohexane sulfonate (PFHxS) is a frequently detected per- and polyfluoroalkyl substance in most populations, including in individuals who are pregnant, a period critical for early life development. Despite epidemiological evidence of exposure, developmental toxicity, particularly at realistic human exposures, remains understudied.Yihao Zhang, Jia Lv, Yi-Jun Fan, Lin Tao, Jingjing Xu, Weitian Tang, Nan Sun, Ling-Li Zhao, De-Xiang Xu, Yichao Huang
1938 related Products with: Evaluating the Effect of Gestational Exposure to Perfluorohexane Sulfonate on Placental Development in Mice Combining Alternative Splicing and Gene Expression Analyses.
300 units25 96 wells (1 kit)100 μg100ug
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#37994669 2023/11/22
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Trophectoderm biopsy of blastocysts following IVF and embryo culture increases epigenetic dysregulation in a mouse model.
Does trophectoderm biopsy (TEBx) of blastocysts for preimplantation genetic testing in the clinic affect normal placental and embryo development and offspring metabolic outcomes in a mouse model?Eric A Rhon-Calderon, Cassidy N Hemphill, Lisa A Vrooman, Casey L Rosier, Yemin Lan, Teri Ord, Christos Coutifaris, Monica Mainigi, Richard M Schultz, Marisa S Bartolomei
2563 related Products with: Trophectoderm biopsy of blastocysts following IVF and embryo culture increases epigenetic dysregulation in a mouse model.
1 mg100ug Lyophilized1 mg1.00 mg4 Membranes/Box100 100 μg100ug100 μg200.00 ug1 mg
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#37994336 2023/03/03
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A radiation-related second primary gastrointestinal stromal tumor in the bladder.
A 69-year-old man underwent 78 Gy/39 Fr of intensity-modulated radiation therapy for prostate cancer. Seven years after radiotherapy, a nonpapillary bladder tumor was identified. Transurethral resection of the bladder tumor was performed, and the pathological diagnosis was spindle cell sarcoma. Immunostaining revealed KIT, DOG1, CD34, Actin, Cytokeratin, Desmin, S100 protein, and Vimentin. No tumor recurrence was observed until 17 months after tumor resection. DOG1 is strongly and specifically expressed in gastrointestinal stromal tumors. This was a rare case of bladder gastrointestinal stromal tumor as a radiation-related second primary tumor.Mai Hori, Kazuki Maki, Yumiko Okuno, Koji Mikami, Takumi Takeuchi
1071 related Products with: A radiation-related second primary gastrointestinal stromal tumor in the bladder.
100ug
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#37992277 2023/11/22
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Unveiling Cellular Diversity in the Buffalo Corneal Stroma: Insights into Telocytes and Keratocytes Using Light Microscope, Transmission Electron Microscope, and Immunofluorescence Analysis.
Telocytes and keratocytes are important cells that maintain the structure and function of the cornea. The buffalo cornea, known for its resilience in harsh conditions, has not been extensively studied regarding the presence and role of telocytes and keratocytes. We used light microscopy, transmission electron microscopy (TEM), and immunofluorescence assays with platelet-derived growth factor receptor alpha (PDGFRα), CD34, and Vimentin markers to investigate their expression and localization in the cornea. TEM analysis confirmed the presence of spindle-shaped keratocytes with intercellular connections, while telocytes exhibited small spindle-shaped bodies with long, thin branches connecting to corneal keratocytes. Immunofluorescence findings showed that CD34 was more abundant near the endothelium, Vimentin was prominently expressed near the epithelium, and PDGFRα was uniformly distributed throughout the corneal stroma. Co-expression of CD34 and Vimentin, PDGFRα and Vimentin, as well as CD34 and PDGFRα, was observed in keratocytes and telocytes within the stroma, indicating the potential presence of mesenchymal cells. These results suggest the involvement of telocytes and keratocytes in corneal wound healing, transparency maintenance, and homeostasis. The co-expression of these markers highlights the critical role of telocytes and keratocytes in regulating corneal physiological functions, further enhancing our understanding of corneal biology in the buffalo model.Ahmed M Rashwan, Mohamed A M Alsafy, Samir A A El-Gendy, Ahmed A El-Mansi, Samar M Ez Elarab