A recombinant lentiviral vector containing a gene encoding a TRAIL protein and a CD protein; and a cell that is transfected with the lentivirus produced by using the vector. A host cell transfected with the recombinant lentivirus maintains a high cell proliferation rate and overexpresses a TRAIL protein and a CD protein. Thus, a mesenchymal stem cell transfected with the lentivirus may be usefully employed as a cell therapeutic agent.

The present disclosure provides a therapy for diabetes that targets abnormal stem cells in combination with stem cell migration. In one embodiment, the present disclosure provides a therapy for diabetes and/or diabetes-related diseases and disorders and/or symptoms that targets abnormal stem cells in combination with stem cell migration. In one embodiment, the present disclosure provides diagnosis of diabetes and/or diabetes-related diseases and disorders and/or symptoms, or the risk thereof, using abnormal stem cell migration and/or residence as an indicator.

The invention provides compositions and methods useful for mobilizing populations of hematopoietic stem and progenitor cells within a donor, as well as for determining whether samples of mobilized cells are suitable for release for ex vivo expansion and/or therapeutic use. In accordance with the compositions and methods described herein, mobilized hematopoietic stem and progenitor cells can be withdrawn from a donor and administered to a patient for the treatment of various stem cell disorders, including hematopoietic diseases, metabolic disorders, cancers, and autoimmune diseases, among others.

The invention provides compositions and methods useful for mobilizing populations of hematopoietic stem and progenitor cells within a donor, as well as for determining whether samples of mobilized cells are suitable for release for ex vivo expansion and/or therapeutic use. In accordance with the compositions and methods described herein, mobilized hematopoietic stem and progenitor cells can be withdrawn from a donor and administered to a patient for the treatment of various stem cell disorders, including hematopoietic diseases, metabolic disorders, cancers, and autoimmune diseases, among others.

The invention provides compositions and methods useful for mobilizing populations of hematopoietic stem and progenitor cells within a donor, as well as for determining whether samples of mobilized cells are suitable for release for ex vivo expansion and/or therapeutic use. In accordance with the compositions and methods described herein, mobilized hematopoietic stem and progenitor cells can be withdrawn from a donor and administered to a patient for the treatment of various stem cell disorders, including hematopoietic diseases, metabolic disorders, cancers, and autoimmune diseases, among others.

An exemplary combination drug includes (a1) an immunoresponsive cell expressing interleukine-7, CCL19, and a cell surface molecule that specifically recognizes a cancer antigen or (a2) one or more kinds of cells, one or more kinds of nucleic acid delivery vehicles, or a combination thereof, which cooperatively include a nucleic acid encoding interleukine-7 and a nucleic acid encoding CCL19; and (b) an immunosuppression inhibitor, and the drug is for use in treatment of a cancer in a subject. An exemplary immunoresponsive cell expresses interleukin-7, CCL19, an immunosuppression inhibiting polypeptide, and a cell surface molecule that specifically recognizes a cancer antigen.

Disclosed is a humanized 4-1BB monoclonal antibody, an antigen-binding fragment thereof, a pharmaceutical composition and a medical use thereof. The monoclonal antibody comprises CDR1 with the amino acid sequence shown in SEQ ID NO: 1 or SEQ ID NO: 4, CDR2 with the amino acid sequence shown in SEQ ID NO: 2 or SEQ ID NO: 5, CDR3 with the amino acid sequence shown in SEQ ID NO: 3, CDR1′ with the amino acid sequence shown in SEQ ID NO: 6, CDR2′ with the amino acid sequence shown in SEQ ID NO: 7, CDR3′ with the amino acid sequence shown in SEQ ID NO: 8. The monoclonal antibody binds to human 4-1BB with high affinity and specificity, leads to a significant increase in T cell proliferation and TNF-γ production, and enhances and stimulates human 4-1BB-mediated immune response.

Provided are compositions and methods for production of anti-inflammatory cytokines, growth factors, or chemokines. Provided are nucleic acids (e.g., expression vectors) that include an NFκB inflammation response element operably linked to a nucleotide sequence encoding an anti-inflammatory cytokine (e.g., IL-4). In some cases, the nucleic acid is an expression vector selected from: a linear expression vector, a circular expression vector, a plasmid, and a viral expression vector. Also provided are cells (e.g., mesenchymal stem cells—MSCs) comprising a nucleic acid that includes an NFκB inflammation response element operably linked to a nucleotide sequence encoding an anti-inflammatory cytokine. In some cases, the nucleic acid is integrated into the cell's genome. Also provided are methods for treating an individual having an inflammation-associated ailment, which can include administering an MSC to the individual, where the MSC includes an NFκB inflammation response element operably linked to a nucleotide sequence encoding an anti-inflammatory cytokine.

In some aspects, disclosed herein are methods and compositions for treatment or prevention of CNS disorders (e.g., stroke) using fibroblasts or derivatives thereof. Disclosed herein are fibroblasts and derivatives thereof capable of inducing neuroregeneration and/or reducing neuroinflammation in a subject. Aspects comprise methods and compositions for stimulating neural progenitor cell proliferation. In some cases, methods comprise providing fibroblasts and stem cells (e.g., hematopoietic stem cells) to an individual to treat or prevent a stroke. Embodiments are directed to exosomes or other microvesicles (e.g., apoptotic bodies) derived from fibroblasts for use in treating or preventing stroke in an individual. In some aspects, disclosed are means, methods, and compositions of matter useful for treatment of cerebral hemorrhage through administration of fibroblasts, modification of fibroblasts, and/or derivatives of fibroblasts such as exosomes, microvesicles, and/or apoptotic bodies. In one embodiment, fibroblasts, modified fibroblasts, and/or derivatives thereof are administered for induction of neuroprotective properties and/or stimulation of neuroregeneration.

Provided herein are methods and compositions related to EVs useful as therapeutic agents.