Patents by Inventor Ren-He Xu

Ren-He Xu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240374647
    Abstract: Provided is an application of a sphere substance in the preparation of an intravenous injection, relating to the technical field of biomedicine. Intravenous injection of the sphere substance formed by MSC spheres or biomaterials is used as a new in-vivo delivery solution. Compared with the intravenous injection of discrete MSCs, the intravenous injection of the MSC spheres reduces the retention of the MSCs in lungs, and prolongs the-retention time and activity of the MSCs in blood and peripheral tissues, such that therapeutic effects for autoimmune diseases, inflammatory diseases, and tissues and organ injuries can be improved. In addition, the intravenous injection of biomaterial spheres is safe, can carry drugs, biologically active molecules or detection molecules, is applied to diagnosis and treatment of an animal disease model or a patient, is more effective and more durable than monomer molecules, and can also carry a variety of molecules to generate a synergistic effect.
    Type: Application
    Filed: April 21, 2022
    Publication date: November 14, 2024
    Inventors: Ren-He XU, Wei SI, Yaping YAN, Changkun YANG, Enqin LI
  • Patent number: 11098281
    Abstract: A method of differentiating pluripotent stem cells into mesenchymal stem cells, a culture medium used in the method of differentiating pluripotent stem cells into mesenchymal stem cells and a method of performing tissue and organ regeneration by using the mesenchymal stem cells obtained by differentiation using the method of differentiating pluripotent stem cells into mesenchymal stem cells are provided. The method of differentiating pluripotent stem cells into mesenchymal stem cells comprises differentiating, completely under 3D suspension conditions, pluripotent stem cells into trophoblast-like cells using BMP4 and A8301, and then differentiating the trophoblast-like cells into mesenchymal stem cells. Neither of two differentiation processes needs passaging or replacement of a culture container.
    Type: Grant
    Filed: July 20, 2018
    Date of Patent: August 24, 2021
    Assignee: UNIVERSITY OF MACAU
    Inventors: Ren-He Xu, Bin Jiang, Li Yan
  • Publication number: 20210085725
    Abstract: The disclosure provided herein relates generally to mesenchymal-like stem cells “hES-T-MiSC” or “T-MSC” and the method of producing the stem cells. The method comprises culturing embryonic stem cells under conditions that the embryonic stem cells develop through an intermediate differentiation of trophoblasts, and culturing the differentiated trophoblasts to hES-T-MSC or T-MSC, T-MSC derived cell and cell lineages “T-MSC-DL” are also described. Disclosed also herein are solutions and pharmaceutical compositions comprising the T-MSC and/or T-MSC-DL, methods of making the T-MSC and T-MSC-DL, and methods of using the T-MSC and T-MSC-DL for treatment and prevention of diseases, specifically, T-MSC and T-MSC-DL are used as immunosuppressive agents to treat multiple sclerosis and autoimmune diseases.
    Type: Application
    Filed: October 9, 2020
    Publication date: March 25, 2021
    Inventors: Xiaofang WANG, Ren-He XU
  • Publication number: 20200392463
    Abstract: The present invention relates to methods of generating and expanding pitman embryonic stem cell derived mesenchymal-like stem/stromal cells. These hES-MSCs are characterized at least in part by the low level of expression of IL-6. These cells are useful for the prevention and treatment of T cell related autoimmune disease, especially multiple sclerosis, as well as for delivering agents across the bland-brain barrier and the blood-spinal cord barrier. Also provided is a method of selecting clinical grade hES-MSC and a method of modifying MSC to produced a MSC with specific biomarker profile. The modified MSC are useful for treatment of various diseases.
    Type: Application
    Filed: January 17, 2020
    Publication date: December 17, 2020
    Inventors: Xiaofang WANG, Ren-He XU
  • Patent number: 10842826
    Abstract: The disclosure provided herein relates generally to mesenchymal-like stem cells “hES-T-MiSC” or “T-MSC” and the method of producing the stem cells. The method comprises culturing embryonic stem cells under conditions that the embryonic stem cells develop through an intermediate differentiation of trophoblasts, and culturing the differentiated trophoblast in hES-T-MSC or T-MSC, T-MSC derived cells and cell lineages “T-MSC-DL” are also described. Disclosed also herein are solutions and pharmaceutical compositions comprising the T-MSC and/or T-MSC-DL, methods of making the T-MSC and T-MSC-DL, and methods of using the T-MSC and T-MSC-DL for treatment and prevention of diseases, specifically. T-MSC and T-MSC-DL are used as immunosuppressive agents to treat multiple sclerosis and autoimmune diseases.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: November 24, 2020
    Assignees: IMSTEM BIOTECHNOLOGY, INC., UNIVERSITY OF CONNECTICUT
    Inventors: Xiaofang Wang, Ren-He Xu
  • Patent number: 10557122
    Abstract: The present invention relates to methods of generating and expanding hitman embryonic stem cell derived mesenchymal-like stem/stromal cells. These hES-MSCs are characterized at least in part by the low level of expression of IL-6. These cells are useful for the prevention and treatment of T cell related autoimmune disease, especially multiple sclerosis, as well as for delivering agents across the blood-brain barrier and the blood-spinal cord barrier. Also provided is a method of selecting clinical grade hES-MSC and a method of modifying MSC to produced a MSC with specific biomarker profile. The modified MSC are useful for treatment of various diseases.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: February 11, 2020
    Assignee: IMSTEM BIOTECHNOLOGY, INC.
    Inventors: Xiaofang Wang, Ren-He Xu
  • Publication number: 20190345440
    Abstract: Disclosed are a device for preparing stem cell spheroids, a method for preparing stem cell spheroids and a method for preserving stem cells which relate to the technical field of preservation and transportation of stem cells. The device for preparing stem cell spheroids disclosed herein includes a substrate. The substrate is provided thereon with culture chambers, each of which has side walls and a bottom wall made of a material incompatible with stem cells. By culturing stem cells with this device, the stem cells may be made into spheroids and thus form stem cell spheroids. The device may be used as a means of preserving or transporting stem cells which makes it possible for stem cells to still have a higher viability and pluripotency even after a long time of preservation, storage and transportation under ambient temperature condition in the form of spheroids.
    Type: Application
    Filed: December 17, 2018
    Publication date: November 14, 2019
    Applicant: UNIVERSITY OF MACAU
    Inventors: Ren-He XU, Bin JIANG, Enqin LI
  • Patent number: 10435666
    Abstract: The first method to cause a culture of human and other primate stem cells to directly and uniformly differentiate into a committed cell lineage is disclosed. Treatment of primate stem cells with a single protein trophoblast induction factor causes the cells to transform into human trophoblast cells, the precursor cells of the placenta. Several protein factors including bone morphogenic protein 4 (BMP4), BMP2, BMP7, and growth and differentiation factor 5 can serve as trophoblast-inducting factors.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: October 8, 2019
    Assignee: WiCell Research Institute, Inc.
    Inventors: Ren-He Xu, James A. Thomson
  • Publication number: 20190167733
    Abstract: The disclosure provided herein relates generally to mesenchymal-like stem cells “hES-T-MiSC” or “T-MSC” and the method of producing the stem cells. The method comprises culturing embryonic stem cells under conditions that the embryonic stem cells develop through an intermediate differentiation of trophoblasts, and culturing the differentiated trophoblast in hES-T-MSC or T-MSC, T-MSC derived cells and cell lineages “T-MSC-DL” are also described. Disclosed also herein are solutions and pharmaceutical compositions comprising the T-MSC and/or T-MSC-DL, methods of making the T-MSC and T-MSC-DL, and methods of using the T-MSC and T-MSC-DL for treatment and prevention of diseases, specifically. T-MSC and T-MSC-DL are used as immunosuppressive agents to treat multiple sclerosis and autoimmune diseases.
    Type: Application
    Filed: January 23, 2019
    Publication date: June 6, 2019
    Inventors: Xiaofang WANG, Ren-He XU
  • Publication number: 20190112573
    Abstract: A method of differentiating pluripotent stem cells into mesenchymal stem cells, a culture medium used in the method of differentiating pluripotent stem cells into mesenchymal stem cells and a method of performing tissue and organ regeneration by using the mesenchymal stem cells obtained by differentiation using the method of differentiating pluripotent stem cells into mesenchymal stem cells are provided. The method of differentiating pluripotent stem cells into mesenchymal stem cells comprises differentiating, completely under 3D suspension conditions, pluripotent stem cells into trophoblast-like cells using BMP4 and A8301, and then differentiating the trophoblast-like cells into mesenchymal stem cells. Neither of two differentiation processes needs passaging or replacement of a culture container.
    Type: Application
    Filed: July 20, 2018
    Publication date: April 18, 2019
    Applicant: University of Macau
    Inventors: Ren-He Xu, Bin Jiang, Li Yan
  • Publication number: 20190112574
    Abstract: A culture method for enhancing the activity of stem cells, and a method of preparing a formulation for treating central nervous diseases, and a method of treating central nervous diseases are provided. In some aspects, stem cell clusters are cultured for 3 to 11 days in a sealed container filled with a culture medium, under a condition in which no oxygen and carbon dioxide are supplied. By placing stem cells in a sealed container to stabilize the properties and enhance the functions thereof under a room temperature condition, the stemness and apoptosis resistance of the stem cells are improved, thereby significantly improving the therapeutic effect of the stem cells after transplantation into a human body.
    Type: Application
    Filed: July 27, 2018
    Publication date: April 18, 2019
    Inventors: Ren-He Xu, Bin Jiang, Li Yan, Enqin Li
  • Patent number: 10226488
    Abstract: The disclosure provided herein relates generally to mesenchymal-like stem cells “hES-T-MiSC” or “T-MSC” and the method of producing the stem cells. The method comprises culturing embryonic stem cells under conditions that the embryonic stem cells develop through an intermediate differentiation of trophoblasts, and culturing the differentiated trophoblasts to hES-T-MSC or T-MSC, T-MSC derived cells and cell lineages “T-MSC-DL” are also described. Disclosed also herein are solutions and pharmaceutical compositions comprising the T-MSC and/or T-MSC-DL, methods of making the T-MSC and T-MSC-DL, and methods of using the T-MSC and T-MSC-DL for treatment and prevention of diseases, specifically, T-MSC and T-MSC-DL are used as immunosuppressive agents to treat multiple sclerosis and autoimmune diseases.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: March 12, 2019
    Assignees: IMSTEM BIOTECHNOLOGY, INC., University of Connecticut
    Inventors: Xiaofang Wang, Ren-He Xu
  • Publication number: 20180010098
    Abstract: The present invention relates to methods of generating and expanding hitman embryonic stem cell derived mesenchymal-like stem/stromal cells. These hES-MSCs are characterized at least in part by the low level of expression of IL-6. These cells are useful for the prevention and treatment of T cell related autoimmune disease, especially multiple sclerosis, as well as for delivering agents across the blood-brain barrier and the blood-spinal cord barrier. Also provided is a method of selecting clinical grade hES-MSC and a method of modifying MSC to produced a MSC with specific biomarker profile. The modified MSC are useful for treatment of various diseases.
    Type: Application
    Filed: July 21, 2017
    Publication date: January 11, 2018
    Inventors: Xiaofang WANG, Ren-He XU
  • Publication number: 20170290864
    Abstract: The disclosure provided herein relates generally to mesenchymal-like stem cells “hES-T-MiSC” or “T-MSC” and the method of producing the stem cells. The method comprises culturing embryonic stem cells under conditions that the embryonic stem cells develop through an intermediate differentiation of trophoblasts, and culturing the differentiated trophoblasts to hES-T-MSC or T-MSC, T-MSC derived cells and cell lineages “T-MSC-DL” are also described. Disclosed also herein are solutions and pharmaceutical compositions comprising the T-MSC and/or T-MSC-DL, methods of making the T-MSC and T-MSC-DL, and methods of using the T-MSC and T-MSC-DL for treatment and prevention of diseases, specifically, T-MSC and T-MSC-DL are used as immunosuppressive agents to treat multiple sclerosis and autoimmune diseases.
    Type: Application
    Filed: June 27, 2017
    Publication date: October 12, 2017
    Inventors: Xiaofang WANG, Ren-He XU
  • Patent number: 9745551
    Abstract: The present invention relates to methods of generating and expanding hitman embryonic stem eel! derived mesenchymal-like stem/siromal cells. These hES-MSCs are characterized at least in part by the low level of expression of IL-6. These cells are useful for the prevention and treatment of T cell related autoimmune disease, especially multiple sclerosis, as well as for delivering agents across the blood-brain barrier and the blood-spinal cord barrier. Also provided is a method of selecting clinical grade hES-MSC and a method of modifying MSC to produced a MSC with specific biomarker profile. The modified MSC are useful for treatment of various diseases.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: August 29, 2017
    Assignee: IMSTEM BIOTECHNOLOGY, INC.
    Inventors: Xiaofang Wang, Ren-He Xu
  • Patent number: 9725698
    Abstract: The disclosure provided herein relates generally to mesenchymal-like stem cells “hES-T-MiSC” or “T-MSC” and the method of producing the stem cells. The method comprises culturing embryonic stem cells under conditions that the embryonic stem cells develop through an intermediate differentiation of trophoblasts, and culturing the differentiated trophoblasts to hES-T-MSC or T-MSC, T-MSC derived cells and cell lineages “T-MSC-DL” are also described. Disclosed also herein are solutions and pharmaceutical compositions comprising the T-MSC and/or T-MSC-DL, methods of making the T-MSC and T-MSC-DL, and methods of using the T-MSC and T-MSC-DL for treatment and prevention of diseases, specifically, T-MSC and T-MSC-DL are used as immunosuppressive agents to treat multiple sclerosis and autoimmune diseases.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: August 8, 2017
    Assignees: IMSTEM BIOTECHNOLOGY, INC., UNIVERSITY OF CONNECTICUT
    Inventors: Xiaofang Wang, Ren-He Xu
  • Publication number: 20150267165
    Abstract: The first method to cause a culture of human and other primate stem cells to directly and uniformly differentiate into a committed cell lineage is disclosed. Treatment of primate stem cells with a single protein trophoblast induction factor causes the cells to transform into human trophoblast cells, the precursor cells of the placenta. Several protein factors including bone morphogenic protein 4 (BMP4), BMP2, BMP7, and growth and differentiation factor 5 can serve as trophoblast-inducting factors.
    Type: Application
    Filed: June 2, 2008
    Publication date: September 24, 2015
    Inventors: Ren-He Xu, James A. Thomson
  • Publication number: 20150203820
    Abstract: The present invention relates to methods of generating and expanding hitman embryonic stem eel! derived mesenchymal-like stem/siromal cells. These hES-MSCs are characterized at least in part by the low level of expression of IL-6. These cells are useful for the prevention and treatment of T cell related autoimmune disease, especially multiple sclerosis, as well as for delivering agents across the blood-brain barrier and the blood-spinal cord barrier. Also provided is a method of selecting clinical grade hES-MSC and a method of modifying MSC to produced a MSC with specific biomarker profile. The modified MSC are useful for treatment of various diseases.
    Type: Application
    Filed: June 27, 2013
    Publication date: July 23, 2015
    Inventors: Xiaofang Wang, Ren-He Xu
  • Publication number: 20150191699
    Abstract: The disclosure provided herein relates generally to mesenchymal-like stem cells “hES-T-MiSC” or “T-MSC” and the method of producing the stem cells. The method comprises culturing embryonic stem cells under conditions that the embryonic stem cells develop through an intermediate differentiation of trophoblasts, and culturing the differentiated trophoblasts to hES-T-MSC or T-MSC, T-MSC derived cells and cell lineages “T-MSC-DL” are also described. Disclosed also herein are solutions and pharmaceutical compositions comprising the T-MSC and/or T-MSC-DL, methods of making the T-MSC and T-MSC-DL, and methods of using the T-MSC and T-MSC-DL for treatment and prevention of diseases, specifically, T-MSC and T-MSC-DL are used as immunosuppressive agents to treat multiple sclerosis and autoimmune diseases.
    Type: Application
    Filed: July 11, 2013
    Publication date: July 9, 2015
    Inventors: Xiaofang Wang, Ren-He Xu
  • Publication number: 20120178160
    Abstract: The invention relates to methods for culturing human embryonic stem cells by culturing the stem cells in an environment essentially free of mammalian fetal serum and in a stem cell culture medium including amino acids, vitamins, salts, minerals, transferrin, insulin, albumin, and a fibroblast growth factor that is supplied from a source other than just a feeder layer the medium. Also disclosed are compositions capable of supporting the culture and proliferation of human embryonic stem cells without the need for feeder cells or for exposure of the medium to feeder cells.
    Type: Application
    Filed: February 17, 2012
    Publication date: July 12, 2012
    Applicant: WiCell Research Institute, Inc.
    Inventors: James A. Thomson, Mark Levenstein, Ren-He Xu