Objective: To evaluate the protective effect of Kalpaamruthaa (KA), a modified Siddha preparation, in BCR-ABL leukemic mouse model.
Methods: BCR-ABL leukemia was induced in 6-10-week-old female BALB/c mice by a single tail vein injection of the 12B1 cell line. Leukemia-induced animals were treated with KA at a dosage of 200 mg/kg body weight dissolved in 0.5 mL of olive oil for 14 days by gastrogavage. Imatinib mesylate was used as the control drug. Glycolytic, gluconeogenic, mitochondrial, tricarboxylic acid cycle and respiratory chain enzymes in the spleen and liver of mouse were compared between the control and experiment groups by biochemical assays.
Results: Leukemia-bearing mice showed a significant increase in glycolytic enzymes and a signififi cant decrease in gluconeogenic enzymes, tricarboxylic acid cycle and respiratory chain enzymes as compared with control animals. Treatment with KA signififi cantly reversed the changes seen in the levels of the glycolytic enzymes, gluconeogenic enzymes and mitochondrial enzymes.
Conclusion: The presence of various flfl avonoids and polyphenols in the drug KA might have resulted in the amelioration of altered glucose metabolism resulting in the regression of leukemia.
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http://dx.doi.org/10.1007/s11655-015-2283-2 | DOI Listing |
Cancer Med
January 2025
Division of Oncology, The Children's Hospitial of Philadelphia, Philadelphia, Pennsylvania, USA.
Background: Single antigen (Ag)-targeted immunotherapies for acute lymphoblastic leukemia (ALL) are highly effective; however, up to 50% of patients relapse after these treatments. Most of these relapses lack target Ag expression, suggesting targeting multiple Ags would be advantageous.
Materials & Methods: The multi-Ag immune responses to ALL induced by transducing cell lines with xenoAgs green fluorescent protein and firefly luciferase was elucidated using flow cytometry, ELISA, and ELISpot assays.
Cell Rep
December 2024
Department of Immunology, Temerty Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada; Toronto General Hospital Research Institute, Ajmera Transplant Centre, University Health Network, Toronto, ON M5G 1L7, Canada. Electronic address:
Interleukin-10 (IL-10)-producing group 2 innate lymphoid cells (ILC2) regulate inflammatory immune responses, yet their therapeutic potential remains largely unexplored. Here, we demonstrate that cell therapy with human ILC2 inhibits pathogenic T cell responses in humanized mouse models of graft-versus-host disease (GVHD), resulting in reduced GVHD severity and improved overall survival without limiting the graft-versus-leukemia effect. ILC2 conferred superior protection from GVHD than IL-10 ILC2s, and blocking IL-10 and IL-4 abrogated ILC2 protective effects, indicating that these cytokines are important for the protective effects of ILC2.
View Article and Find Full Text PDFCell Biol Toxicol
December 2024
Department of Hematology, The Fourth Affiliated Hospital of China Medical University, Shenyang, 110032, People's Republic of China.
Acute myeloid leukemia (AML) is a heterogeneous hematologic malignancy characterized by the clonal expansion of myeloid progenitor cells. Despite advancements in treatment, the prognosis for AML patients remains poor, highlighting the need for novel therapeutic targets. Protein Tyrosine Phosphatase Non-Receptor Type 6 (PTPN6), also known as SHP-1, is a critical regulator of hematopoietic cell signaling and has been implicated in various leukemias.
View Article and Find Full Text PDFNano Lett
December 2024
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Key Laboratory of Pathobiology, Ministry of Education, Nanomedicine and Translational Research Center, China-Japan Union Hospital of Jilin University, Changchun 130033, P. R. China.
Although traditionally regarded as an impediment, the protein corona can facilitate the advancement of targeted drug delivery systems. This study presents an innovative approach for targeting acute myeloid leukemia (AML) using nanoparticles with agglutinated protein (NAPs). Agglutinated transferrin and C3b in NAPs selectively bind to CD71 and CD11b, receptors that are overexpressed on myeloid leukemic cells compared to nonmalignant cells.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Department of Medical Oncology, Cancer Institute, West Virginia University, Morgantown, WV 26506, USA.
Our previous studies have demonstrated that pegcrisantaspase (PegC), a long-acting asparaginase, synergizes with the BCL-2 inhibitor Venetoclax (Ven) in vitro and in vivo; however, the anti-leukemic activity of -derived asparaginases in combination with BCL-2 inhibition, and potential synergy with inhibitors of MCL-1, a key resistance factor of BCL-2 inhibition, has yet to be determined. Using a combination of human AML cells lines, primary samples, and in vivo xenograft mouse models, we established the anti-leukemic activity of the BCL-2 inhibitor S55746 and the MCL-1 inhibitor S63845, alone and in combination with the long-acting asparaginase calaspargase pegol-mknl (CalPegA). We report that CalPegA enhances the anti-leukemic effect of S55746 but does not impact the activity of S63845.
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