A buoyancy enabled separation method for isolation from a sample including a variety of different cells a sparse subset of cells that is differentiated by a plurality of different cell surface markers. Microbubbles conjugated to antibodies are applied sequentially in a container with the previously used microbubbles disrupted prior to applying the next microbubbles conjugated to a different antibody. A system that includes a syringe-like container with a plunger and closeable opening. Further, a method for activating and expanding isolated T cells by applying antigen presenting microbubbbles having a flexible lipid shell mimicking an antigen presenting cell for generating immunological synapses.

The present disclosure provides compositions and methods for the treatment of demyelinating conditions. More particularly, the present disclosure relates to compositions including DUOC-01 cell product, derived from banked human umbilical cord blood (CB) mononuclear cells; methods for preparing such compositions; and methods of using such compositions for treatment of demyelinating conditions.

An isolated cytotoxic T-lymphocyte (CTL), said CTL being a tolerance inducing cell and substantially depleted of alloreactivity, and wherein said CTL does not comprise a central memory T-lymphocyte (Tcm) phenotype, the CTL being transduced to express a cell surface receptor comprising a T cell receptor signaling module, is disclosed. Methods of generating same and using same are also disclosed.

A method of treating a subject in need of a non-syngeneic cell or tissue graft is disclosed. The method comprising: (a) transplanting into a subject a dose of T cell depleted immature hematopoietic cells, wherein the T cell depleted immature hematopoietic cells comprise less than 510.sup.5 CD3.sup.+ T cells per kilogram body weight of the subject, and wherein the dose comprises at least about 510.sup.6 CD34+ cells per kilogram body weight of the subject; and subsequently (b) administering to the subject a therapeutically effective amount of cyclophosphamide, wherein the therapeutically effective amount comprises 25-200 mg per kilogram body weight, thereby treating the subject.

The invention provides compositions and methods useful for the depletion of cells, such as CD45+, CD135+, CD34+, CD90+, and/or CD110+ cells, and for the treatment of various hematopoietic diseases, metabolic disorders, cancers, and autoimmune diseases, among others. Described herein are antibodies, antigen-binding fragments, ligands, and conjugates thereof that can be applied to effect the treatment of these conditions, for instance, by depleting a population of CD45+, CD135+, CD34+, CD90+, or CD110+ cells in a patient, such as a human. The compositions and methods described herein can be used to treat a disorder directly, for instance, by depleting a population of CD45+, CD135+, CD34+, CD90+, or CD110+ cancer cells or autoimmune cells. The compositions and methods described herein can also be used to prepare a patient for hematopoietic stem cell transplant therapy and to improve the engraftment of hematopoietic stem cell transplants by selectively depleting endogenous hematopoietic stem cells prior to the transplant procedure.

The present disclosure relates generally to methods for preparing cell-based therapeutic compositions for treating hematological cancers. In particular, the disclosure relates to depleting CD56+ cells from cell-based therapeutics used to treat hematological cancers.

Provided herein are methods for identifying and treating cancers that are resistant to PARP inhibition. Methods for sensitizing cancers to a PARP inhibitor therapy are also provided. In some aspects. PARP inhibitor cancers are treated with a PARP inhibitor therapy in combination with a c-Met inhibitor therapy.

A method of generating an isolated population of non graft versus host disease (GvHD) inducing cells comprising a central memory T-lymphocyte (Tcm) phenotype, the cells being tolerance inducing cells and/or endowed with anti-disease activity, and capable of homing to the lymph nodes following transplantation is disclosed. The method comprising: (a) providing a population of at least 70% memory T cells; (b) contacting the population of memory T cells with an antigen or antigens so as to allow enrichment of antigen reactive cells; and (c) culturing the cells resulting from step (b) in the presence of cytokines so as to allow proliferation of cells comprising the Tcm phenotype. Cells generated by the method, pharmaceutical compositions and methods of treatment are also disclosed.

A method of treating a subject in need of a non-syngeneic cell or tissue graft is disclosed. The method comprising: (a) transplanting into a subject a dose of T cell depleted immature hematopoetic cells, wherein the T cell depleted immature hematopoetic cells comprise less than 5105 CD3+ T cells per kilogram body weight of the subject, and wherein the dose comprises at least about 5106 CD34+ cells per kilogram body weight of the subject, and wherein the T cell depleted immature hematopoetic cells are obtained by separating the T cells from the immature hematopoetic cells by magnetic cell sorting, and (b) administering to the subject a therapeutically effective amount of cyclophosphamide, wherein the therapeutically effective amount comprises 25-200 mg per body weight, thereby treating the subject.

The present disclosure provides distinct therapeutic populations of cells that form a pharmaceutical composition useful in hematopoietic stem/progenitor cell transplant. For example, the present disclosure provides a therapeutic population of cells, comprising an enriched population of hematopoietic stem/progenitor cells, memory T cells, regulatory T cells, and wherein the population of cells is depleted of na?ve conventional ??-T cells. The present disclosure further provides methods of treatment using the therapeutic population of cells. In other embodiments, the present disclosure provides methods of producing a therapeutic population of cells.