154 results about "Myeloid cells" patented technology

The combination of an interleukin-6 (IL-6) antagonist and an antiproliferative drug is described. In its preferred embodiment, the present invention describes the combination of an IL-6 superantagonist, particularly a superantagonist totally incapable of binding gp130 and an antiproliferative drug belonging to the glucocorticoid class (SANT-7 and dexamethasone). The combination according to the present invention has shown surprising synergism in an animal model of multiple myeloma and the ability to overcome the resistance to the antiproliferative drug developed by myeloid cells. The combination according to the present invention is useful for the preparation of a medicament for the treatment of tumours, particularly IL-6-dependent tumours.

Novel activating receptors of the lg super-family expressed on human myeloid cells, called TREM(s) (triggering receptor expressed on myeloid cells) are provided. Specifically, two (2) members of TREMs, TREM-1 and TREM-2 are disclosed. TREM-1 is a transmembrane glycoprotein expressed selectively on blood neutrophils and a subset of monocytes but not on lymphocytes and other cell types and is upregulated by bacterial and fungal products. Use of TREM-1 in treatment and diagnosis of various inflammatory diseases is also provided. TREM-2 is also a transmembrane glycoprotein expressed selectively on mast cells and peripheral dendritic cells (DCs) but not on granulocytes or monocytes. DC stimulation via TREM-2 leads to DC maturation and resistance to apoptosis, and induces strong upregulation of CCR7 and subsequent chemotaxis toward macrophage inflammatory protein 3-β. TREM-2 has utility in modulating host immune responses in various immune disorders, including autoimmune diseases and allergic disorders.

The present invention provides for compounds that inhibit the activity of an anti-apoptotic Bcl-2 family member Myeloid cell leukemia-1 (Mcl-1) protein. The present invention also provides for pharmaceutical compositions as well as methods for using compounds for treatment of diseases and conditions (e.g., cancer) characterized by the over-expression or dysregulation of Mcl-1 protein.

The present invention provides a human C-type lectin, binding molecules that specifically bind to the human C-type lectin, nucleic acid molecules encoding the binding molecules or the human C-type lectin, compositions comprising the binding molecules or the human C-type lectin and methods of identifying or producing the binding molecules. The human C-type lectin is specifically expressed on myeloid cells and binding molecules capable of specifically binding to the human C-type lectin can be used in the diagnosis, prevention and / or treatment of neoplastic disorders and diseases.

A method useful for the enumeration of cell populations in a biological sample includes the steps of reacting in a single reaction mixture a sample, a first antibody labeled with a fluorochrome having a first emission spectrum and an additional antibody. The first antibody binds to an antigenic determinant differentially expressed on leukocytes and non-leukocytes. The additional antibody binds to an antigenic determinant differentially expressed on mature and immature granulocytes or myeloid cells, and is labeled either with the first fluorochrome or an additional fluorochrome having an emission spectrum distinguishable from the first emission spectrum. The reaction mixture can be mixed with a nucleic acid dye having an emission spectrum that overlaps with one of the first or additional emission spectra. The reaction mixture may be treated with a lytic system that differentially lyses non-nucleated red blood cells and conserves leukocytes. Populations of hematological cells are detected and enumerated using at least two parameters (fluorescence, optical, and electrical) for each population.

The present invention relates to immunotherapies that are based on myeloid cell depletion. In particular, the present invention relates to CD33 binding agents for use in such therapies, e.g. in the treatment of myeloid cell malignancies and myelodysplastic syndrome (MDS).

The present invention provides a method of screening substances having property of causing apoptosis, and relates to a method of screening substances having property of causing apoptosis characterized by using cells which are expressing IAP (Integrin Associated Protein), and the relates to above screening method, wherein the cells used are myeloid cells, and relates to pharmaceutical compositions containing as the active ingredient the substances obtained by the above method, and the present invention makes it possible to differentiate, identify and screen readily and highly efficiently the substances, such as antibodies and the like, that have property of causing apoptosis on myeloid cells by using cells which are expressing IAP while using specific binding reactions of the substances, and the above specific substances thus obtained can be used by virtue of their characteristics as the active ingredient of pharmaceutical compositions such as anticancer agents and medicines for myelocytic leukemia and the like.

Novel activating receptors of the Ig super-family expressed on human myeloid cells, called TREM(s) (triggering receptor expressed on myeloid cells) are provided. Specifically, two (2) members of TREMs, TREM-1 and TREM-2 are disclosed. TREM-1 is a transmembrane glycoprotein expressed selectively on blood neutrophils and a subset of monocytes but not on lymphocytes and other cell types and is upregulated by bacterial and fungal products. Use of TREM-1 in treatment and diagnosis of various inflammatory diseases is also provided. TREM-2 is also a transmembrane glycoprotein expressed selectively on mast cells and peripheral dendritic cells (DCs) but not on granulocytes or monocytes. DC stimulation via TREM-2 leads to DC maturation and resistance to apoptosis, and induces strong upregulation of CCR7 and subsequent chemotaxis toward macrophage inflammatory protein 3-β. TREM-2 has utility in modulating host immune responses in various immune disorders, including autoimmune diseases and allergic disorders.

The present invention provides a method of screening substances having property of causing apoptosis, and relates to a method of screening substances having property of causing apoptosis characterized by using cells which are expressing IAP (Integrin Associated Protein), and the relates to above screening method, wherein the cells used are myeloid cells, and relates to pharmaceutical compositions containing as the active ingredient the substances obtained by the above method, and the present invention makes it possible to differentiate, identify and screen readily and highly efficiently the substances, such as antibodies and the like, that have property of causing apoptosis on myeloid cells by using cells which are expressing IAP while using specific binding reactions of the substances, and the above specific substances thus obtained can be used by virtue of their characteristics as the active ingredient of pharmaceutical compositions such as anticancer agents and medicines for myelocytic leukemia and the like.

Novel activating receptors of the Ig super-family expressed on human myeloid cells, called TREM(s) (triggering receptor expressed on myeloid cells) are provided. Specifically, two (2) members of TREMs, TREM-1 and TREM-2 are disclosed. TREM-1 is a transmembrane glycoprotein expressed selectively on blood neutrophils and a subset of monocytes but not on lymphocytes and other cell types and is upregulated by bacterial and fungal products. Use of TREM-1 in treatment and diagnosis of various inflammatory diseases is also provided. TREM-2 is also a transmembrane glycoprotein expressed selectively on mast cells and peripheral dendritic cells (DCs) but not on granulocytes or monocytes. DC stimulation via TREM-2 leads to DC maturation and resistance to apoptosis, and induces strong upregulation of CCR7 and subsequent chemotaxis toward macrophage inflammatory protein 3-β. TREM-2 has utility in modulating host immune responses in various immune disorders, including autoimmune diseases and allergic disorders.

A method useful for the enumeration of cell populations in a biological sample includes the steps of reacting in a single reaction mixture a sample, a first antibody labeled with a fluorochrome having a first emission spectrum and an additional antibody. The first antibody binds to an antigenic determinant differentially expressed on leukocytes and non-leukocytes. The additional antibody binds to an antigenic determinant differentially expressed on mature and immature granulocytes or myeloid cells, and is labeled either with the first fluorochrome or an additional fluorochrome having an emission spectrum distinguishable from the first emission spectrum. The reaction mixture can be mixed with a nucleic acid dye having an emission spectrum that overlaps with one of the first or additional emission spectra. The reaction mixture may be treated with a lytic system that differentially lyses non-nucleated red blood cells and conserves leukocytes. Populations of hematological cells are detected and enumerated using at least two parameters (fluorescence, optical, and electrical) for each population.

Novel activating receptors of the lg super-family expressed on human myeloid cells, called TREM(s) (triggering receptor expressed on myeloid cells) are provided. Specifically, two (2) members of TREMs, TREM-1 and TREM-2 are disclosed. TREM-1 is a transmembrane glycoprotein expressed selectively on blood neutrophils and a subset of monocytes but not on lymphocytes and other cell types and is upregulated by bacterial and fungal products. Use of TREM-1 in treatment and diagnosis of various inflammatory diseases is also provided. TREM-2 is also a transmembrane glycoprotein expressed selectively on mast cells and peripheral dendritic cells (DCs) but not on granulocytes or monocytes. DC stimulation via TREM-2 leads to DC maturation and resistance to apoptosis, and induces strong upregulation of CCR7 and subsequent chemotaxis toward macrophage inflammatory protein 3-β. TREM-2 has utility in modulating host immune responses in various immune disorders, including autoimmune diseases and allergic disorders.

Novel activating receptors of the Ig super-family expressed on human myeloid cells, called TREM(s) (triggering receptor expressed on myeloid cells) are provided. Specifically, two (2) members of TREMs, TREM-1 and TREM-2 are disclosed. TREM-1 is a transmembrane glycoprotein expressed selectively on blood neutrophils and a subset of monocytes but not on lymphocytes and other cell types and is upregulated by bacterial and fungal products. Use of TREM-1 in treatment and diagnosis of various inflammatory diseases is also provided. TREM-2 is also a transmembrane glycoprotein expressed selectively on mast cells and peripheral dendritic cells (DCs) but not on granulocytes or monocytes. DC stimulation via TREM-2 leads to DC maturation and resistance to apoptosis, and induces strong upregulation of CCR7 and subsequent chemotaxis toward macrophage inflammatory protein 3-β. TREM-2 has utility in modulating host immune responses in various immune disorders, including autoimmune diseases and allergic disorders.

Novel activating receptors of the Ig super-family expressed on human myeloid cells, called TREM(s) (triggering receptor expressed on myeloid cells) are provided. Specifically, two (2) members of TREMs, TREM-1 and TREM-2 are disclosed. TREM-1 is a transmembrane glycoprotein expressed selectively on blood neutrophils and a subset of monocytes but not on lymphocytes and other cell types and is upregulated by bacterial and fungal products. Use of TREM-1 in treatment and diagnosis of various inflammatory diseases is also provided. TREM-2 is also a transmembrane glycoprotein expressed selectively on mast cells and peripheral dendritic cells (DCs) but not on granulocytes or monocytes. DC stimulation via TREM-2 leads to DC maturation and resistance to apoptosis, and induces strong upregulation of CCR7 and subsequent chemotaxis toward macrophage inflammatory protein 3-beta. TREM-2 has utility in modulating host immune responses in various immune disorders, including autoimmune diseases and allergic disorders.

The present disclosure relates to a method of expanding myeloid progenitor cells by culturing an initial population of cells in a medium comprising a mixture of cytokines and growth factors that promote growth and expansion of the myeloid progenitor cells. The expanded cell population provides a source of cells as therapeutic treatments for neutropenia and / or thrombocytopenia arising in patients subjected to myeloablative therapy and hematopoietic stem cell transplantation.

Disclosed are adenovirus vectors comprising a ROBO4 enhancer / promoter operatively linked to a transgene. Also disclosed are adenovirus vectors comprising a chimeric AD5-T4 phage fibritin shaft, a trimerization domain displaying a myeloid cell-binding peptide (MBP), and a ROBO4 enhancer promoter operatively linked to a transgene. Also disclosed are methods of expressing a transgene in an endothelial cell in vivo, comprising administering to a mammal an adenovirus comprising a ROBO4 enhancer / promoter operatively linked to a transgene. Also disclosed are uses of the adenoviral vectors, including mobilization of granulocytes, monocytes and lymphocytes from bone marrow, mobilization of cancer cells in vivo, selective targeting of endothelial cells, and cancer treatment methods.

The present invention relates to the use of myeloid cell biomarkers for the differential diagnosis, prognosis, and monitoring of renal cell carcinoma (RCC) or colorectal cancer (CRC). The present invention furthermore relates to monitoring the effect of a treatment against renal cell carcinoma (RCC) or colorectal cancer (CRC), and establishing a prognosis of the outcome of the treatment of renal cell carcinoma (RCC) or colorectal cancer (CRC). The present invention furthermore relates to panels of cellular biomarkers for use in the above methods, in particular multicolor panels for measuring said biomarkers.

Methods for the diagnosis, prognosis and prediction of sepsis in a subject using the expression levels of the biomarkers Triggering Receptor Expressed on Myeloid cells-1 (TREM-1) and TREM-like receptor transcript-1 (TLT1) as an indication of the condition of the patient, alone or in combination with further sepsis markers are disclosed. If the levels of the biomarkers indicate the presence of sepsis, the patient is treated for sepsis with an antibiotic and / or fluid resuscitation treatment.

The present invention relates to administration of milk fat or a milk fat analogue, optionally with at least one additional therapeutic factor, preferably lactoferrin or metal ion lactoferrin, preferably iron lactoferrin, preferably bovine lactoferrin, preferably iron bovine lactoferrin, or a metal ion functional variant or functional fragment thereof, to inhibit tumour formation or growth, maintain or improve one or more of the white blood cell count, the red blood cell count, or the myeloid cell count, reduce cachexia, mucositis, and anemia, stimulate the immune system and treat or prevent cancer and the symptoms of cancer and side-effects of cancer therapies. The methods and medicinal uses of the invention may be carried out by employing dietary (as foods or food supplements), nutraceutical or pharmaceutical compositions. Compositions useful in the methods of the invention are also provided.

The present disclosure relates to a method of expanding myeloid progenitor cells by culturing an initial population of cells in a medium comprising a mixture of cytokines and growth factors that promote growth and expansion of the myeloid progenitor cells. The expanded cell population provides a source of cells as therapeutic treatments for neutropenia and / or thrombocytopenia arising in patients subjected to myeloablative therapy and hematopoietic stem cell transplantation.

The present invention relates to administration of milk fat or a milk fat analogue, optionally with at least one additional therapeutic factor, preferably lactoferrin or metal ion lactoferrin, preferably iron lactoferrin, preferably bovine lactoferrin, preferably iron bovine lactoferrin, or a metal ion functional variant or functional fragment thereof, to inhibit tumour formation or growth, maintain or improve one or more of the white blood cell count, the red blood cell count, or the myeloid cell count, reduce cachexia, mucositis, and anemia, stimulate the immune system and treat or prevent cancer and the symptoms of cancer and side-effects of cancer therapies. The methods and medicinal uses of the invention may be carried out by employing dietary (as foods or food supplements), nutraceutical or pharmaceutical compositions. Compositions useful in the methods of the invention are also provided.

The invention provides small RNA (shR337) capable of differentiating hematopoietic stem cells (MSC) from human nonhematopoietic stem cells (HSC) such as mesenchymal stem cells (MSC). The discovery of the small RNA also provides an action target capable of differentiating the hematopoietic stem cells from the human nonhematopoietic stem cells such as the bone marrow mesenchymal stem cells. The small RNA can restrict the protein translation of EIDI genes after being transfected to human bone marrow mesenchymal stem cells to transform the human bone marrow mesenchymal stem cells into hematopoietic stem cells with CD45<+>surface antigen positive, and the hematopoietic stem cells with CD45<+>surface antigen positive can be further differentiated into myeloid cells and lymphoid cells. Mice in vivo experiments show that the differentiation of the small RNA to the mesenchymal stem cells is directional and undivided.

The present invention provides a human C-type lectin, binding molecules that specifically bind to the human C-type lectin, nucleic acid molecules encoding the binding molecules or the human C-type lectin, compositions comprising the binding molecules or the human C-type lectin and methods of identifying or producing the binding molecules. The human C-type lectin is specifically expressed on myeloid cells and binding molecules capable of specifically binding to the human C-type lectin can be used in the diagnosis, prevention and / or treatment of neoplastic disorders and diseases.

Novel activating receptors of the lg super-family expressed on human myeloid cells, called TREM(s) (triggering receptor expressed on myeloid cells) are provided. Specifically, two (2) members of TREMs, TREM-1 and TREM-2 are disclosed. TREM-1 is a transmembrane glycoprotein expressed selectively on blood neutrophils and a subset of monocytes but not on lymphocytes and other cell types and is upregulated by bacterial and fungal products. Use of TREM-1 in treatment and diagnosis of various inflammatory diseases is also provided. TREM-2 is also a transmembrane glycoprotein expressed selectively on mast cells and peripheral dendritic cells (DCs) but not on granulocytes or monocytes. DC stimulation via TREM-2 leads to DC maturation and resistance to apoptosis, and induces strong upregulation of CCR7 and subsequent chemotaxis toward macrophage inflammatory protein 3-β. TREM-2 has utility in modulating host immune responses in various immune disorders, including autoimmune diseases and allergic disorders.

The invention belongs to the field of medicine, which relates to the application of Lycoris radiate alkaloid that is taken as tumor anti-apoptosis factor Mcl-1(myeloid cell leukemia-1) inhibitor, by inhibiting the protein expression of the tumor anti-apoptosis factor Mcl-1(myeloid cell leukemia-1), the diseases that are caused by the protein expression exception of Mcl-1, such as autoimmune inflammations, tumors, and the like, can be cured.

The invention discloses a compound with the functions of radiation prevention, oxidation resistance and DNA protection. The invention is prepared by sea protein peptide and ganoderma lucidum polysaccharide with the weight ratio of 18 to 1 and has the functions of preparing radiation prevention drugs, radiation prevention health foods and radiation prevention foods. The preparation of the invention has the features of easy absorption, rapid absorption, low viscosity and good water-solubility. The invention ensures the improving of the survival rate and average survival time of a radiating mouse 30d, the number of the peripheral blood leukocytes, the amount of DNA of myeloid cells, superoxide dismutase (SOD) of serum and the 50% hemolytic dose (HC50). Further, the invention has the effect of radiation prevention, and the radiation prevention effect of the invention is superior to the radiation prevention effect of the ganoderma lucidum polysaccharide when the ganoderma lucidum is provided solely. The employment of the invention on the radiation drugs, radiation health foods and radiation foods can solve the problem that great toxicity universally exists on the current mercapto compounds.

The present invention relates to immunotherapies that are based on myeloid cell depletion. In particular, the present invention relates to CD33 binding agents for use in such therapies, e.g. in the treatment of myeloid cell malignancies and myelodysplastic syndrome (MDS).

In some embodiments, compositions and methods relating to isolated artificial antigen presenting cells (aAPCs) are disclosed, including aAPCs comprising a myeloid cell transduced with one or more viral vectors, such as a MOLM-14 or a EM-3 myeloid cell, wherein the myeloid cell endogenously expresses HLA-AB / C, ICOS-L, and CD58, and wherein the one or more viral vectors comprise a nucleic acid encoding CD86 and a nucleic acid encoding 4-1BBL and / or OX40L and transduce the myeloid cell to express CD86 and 4-1BBL and / or OX40L proteins. In some embodiments, methods of expanding tumor infiltrating lymphocytes (TILs) with aAPCs and methods of treating cancers using TILs after expansion with aAPCs are also disclosed.

The invention discloses a preparing method of an antibacterial peptide PMAP-23 monoclonal antibody. Amino fragment of chemically synthesized antibacterial peptide PMAP-23 is used for immunizing Balb / c mouse. Then, spleen cells of the immunized mouse are used to be integrated with Sp2 / 0 myeloma cells. After screening and cloning, hybridoma cell strains for secreting anti-pig antibacterial peptide PMAP-23 monoclonal antibody are obtained. And finally, the required antibody is obtained. The monoclonal antibody of the invention can be used for constructing an enzyme linked immunosorbent assay method for detecting influences of lactoferrin on the PMAP-23 secreting level of the myeloma cells.