Abstract: Provided herein, in some embodiments, are methods and compositions for identifying combinations of transcription factors, for example, those involved in cell type conversion processes, such as cell differentiation.
Type:
Application
Filed:
September 6, 2023
Publication date:
June 27, 2024
Applicant:
President and Fellows of Harvard College
Inventors:
Hon Man Alex Ng, George M. Church, Parastoo Khoshakhlagh
Abstract: The present invention relates to chimeric antigen receptor (CAR)-T cells, and particularly, although not exclusively, to anti-T-cell receptor (TCR) V-beta CARs, and to their use in immunotherapy, and for treating, preventing or ameliorating cancer, such as T-cell lymphomas, various microbial infections, such as HIV and TB, and also autoimmune disease. The invention is especially concerned with the use of CAR-engineered mucosal-associated invariant T (MAIT) cells, and to novel methods for stimulating, isolating and expanding highly purified MAIT cells, which can then be engineered into such CAR-MAIT cells. The invention extends to genetic constructs per se, and to their use in generating the CAR-MAIT cells, and to transduced CAR-MAIT cells per se. The invention also extends to various medical uses of the constructs and transduced CAR-MAIT cells, and to pharmaceutical compositions comprising these constructs and CAR-MAIT cells.
Abstract: The present disclosure provides glycosyl hydrolases (e.g., OGA) comprising a ligand-dependent intein. The present disclosure also provides pharmaceutical compositions comprising the glycosyl hydrolases disclosed herein, as well as polynucleotides, vectors, cells, and kits. Methods of using the disclosed intein-containing glycosyl hydrolases are also provided herein, including methods of deglycosylating a target protein. Methods of treating a glycosylation-associated disease in a subject, as well as methods of sensitizing a cell to a desirable therapeutic outcome, are also provided herein.
Type:
Application
Filed:
December 22, 2023
Publication date:
June 27, 2024
Applicant:
President and Fellows of Harvard College
Abstract: Some aspects of this disclosure provide a fusion protein comprising a guide nucleotide sequence-programmable DNA binding protein domain (e.g., a nuclease-inactive variant of Cas9 such as dCas9), an optional linker, and a recombinase catalytic domain (e.g., a tyrosine recombinase catalytic domain or a serine recombinase catalytic domain such as a Gin recombinase catalytic domain). This fusion protein can recombine DNA sites containing a minimal recombinase core site flanked by guide RNA-specified sequences. The instant disclosure represents a step toward programmable, scarless genome editing in unmodified cells that is independent of endogenous cellular machinery or cell state.
Type:
Application
Filed:
May 26, 2023
Publication date:
June 27, 2024
Applicant:
President and Fellows of Harvard College
Inventors:
David R. Liu, Brian Chaikind, Jeffrey L. Bessen
Abstract: Forced expression of a handful of transcription factors (TFs) can induce conversions between cell identities; however, the extent to which TFs can alter cell identity has not been systematically assessed. Here, we assembled a human TFome, a comprehensive expression library of 1,578 human TF clones with full coverage of the major TF families. By systematically screening the human TFome, we identified 77 individual TFs that induce loss of human-induced-pluripotent-stem-cell (hiPSC) identity, suggesting a pervasive ability for TFs to alter cell identity. Using large-scale computational cell type classification trained on thousands of tissue expression profiles, we identified cell types generated by these TFs with high efficiency and speed, without additional selections or mechanical perturbations. TF expression in adult human tissues only correlated with some of the cell lineage generated, suggesting more complexity than observation studies can explain.
Type:
Application
Filed:
October 27, 2023
Publication date:
June 27, 2024
Applicant:
President and Fellows of Harvard College
Inventors:
Hon Man Alex Ng, George M. Church, Volker Busskamp
Abstract: Some aspects of this disclosure relate to strategies, systems, methods, compositions, and kits that are useful for production (e.g., evolution) of cytidine deaminase protein variants that are characterized by increased soluble expression and/or stability relative to the wild-type cytidine deaminase protein from which they are evolved. In some embodiments, evolved cytidine deaminase variants described by the disclosure are useful for incorporation into targeted nucleic acid editing proteins, for example in fusion proteins with a Cas9 domain or variant thereof.
Type:
Application
Filed:
January 22, 2024
Publication date:
June 27, 2024
Applicants:
President and Fellows of Harvard College, The Broad Institute, Inc.
Abstract: The present invention relates to chimeric antigen receptor (CAR)-T cells, and particularly, although not exclusively, to their use in immunotherapy, and for treating, preventing or ameliorating cancer, such as T-cell lymphomas, various microbial infections, such as HIV and TB, and also autoimmune disease. The invention is especially concerned with the use of CAR-engineered mucosal-associated invariant T (MAIT) cells, and to novel methods for stimulating, isolating, and expanding highly purified MAIT cells, which can then be engineered into such CAR-MAIT cells. The invention is also concerned with methods for expansion of MAIT cells in vitro.
Abstract: Disclosed herein are an apparatus for electrically assessing and/or manipulating cells. One aspect is directed to electrically mapping cells on the surface of the semiconductor substrate via cross-electrode impedance measurements. Further according to some aspects, the electrode array allows for spatially addressable electrical stimulation and/or recording of electrical signals in real-time using the CMOS circuitry. Some of these aspects are directed to using an electrode array to perform cell patterning through electrochemical gas generation, and extracellular electrochemical mapping.
Type:
Application
Filed:
August 3, 2023
Publication date:
June 27, 2024
Applicant:
President and Fellows of Harvard College
Inventors:
Donhee Ham, Jeffrey T. Abbott, Wenxuan Wu, Tianyang Ye, Han Sae Jung, Hongkun Park
Abstract: The present disclosure generally relates to sugar reduction in foods and, in some aspects, to enzyme-polymer conjugated particles for food and other applications. Certain aspects of the disclosure are directed to compositions for reducing sugar content and/or producing dietary fiber within food products during or after consumption (e.g., in a subject's gastrointestinal (GI) tract), while maintaining the sweetness and flavor of the sugar in food products upon consumption (e.g., in a subject's mouth). For example, in one set of embodiments, a composition may comprise a particle comprising an enzyme capable of converting a sugar into a relatively non-digestible form (e.g., a polymer), optionally an inhibitor that reversibly inhibits the enzyme from converting the sugar, and optionally an additive capable of associating with the inhibitor. The composition may be used for in situ conversion of sugars upon exposure to an environment condition (e.g., pH and/or temperature) in the GI tract.
Type:
Application
Filed:
June 8, 2022
Publication date:
June 27, 2024
Applicants:
President and Fellows of Harvard College, Massachusetts Institute of Technology
Inventors:
Donald E. Ingber, Vaskar Gnyawali, Daneille Harrier, Yan Liu, Evan Minghao Zhao, David A. Weitz, James J. Collins, Adama Marie Sesay, Bobby Tyrell Haney
Abstract: A method of reducing a symptom of a clinical disorder characterized by aberrantly elevated circulating aP2 is carried out by administering to a subject an inhibitor of secreted aP2, secretion of aP2, or a serum aP2 blocking agent. For example, glucose intolerance is reduced following administration of such an inhibitor or agent. Exemplary compositions inhibit cellular secretion of aP2 or bind to circulating aP2, thereby reducing the level or activity of aP2 in blood or serum.
Type:
Application
Filed:
June 26, 2023
Publication date:
June 27, 2024
Applicant:
President and Fellows of Harvard College
Abstract: Materials for electrochemical cells are provided. BaZr0.4Ce0.4M0.2O3 compounds, where M represents one or more rare earth elements, are provided for use as electrolytes. PrBa0.5Sr0.5Co2?xFexO5+? is provided for use as a cathode. Also provided are electrochemical cells, such as protonic ceramic fuel cells, incorporating the compounds as electrolytes and cathodes.
Type:
Grant
Filed:
November 11, 2022
Date of Patent:
June 25, 2024
Assignees:
Northwestern University, University of Maryland, College Park
Inventors:
Sossina M. Haile, Sihyuk Choi, Christopher James Kucharczyk, Yangang Liang, Xiaohang Zhang, Ichiro Takeuchi
Abstract: The present invention discloses a pneumatic-controlled pitch-adjustable telescopic mechanism used for a robotic arm, which belongs to the technical field of robotic arm pneumatic control movement, comprising a sliding block, a fixed block and a driving device, the fixed block is in a fixed position; the sliding block slides relative to the fixed block according to a predetermined movement track, which is used to adjust the distance between the sliding block and the fixed block; the driving device is used to provide power to drive; a sliding bar is disposed between the driving device and the sliding block, one end of the sliding bar is fixedly connected to the driving device, and the other end is slidingly connected to the sliding block, which is used to drive the sliding block to slide; the fixed block is provided with a fixed base and a guide mechanism, the fixed base is used to restrict the sliding bar from moving in a direction non-parallel to the predetermined movement track; the guide mechanism is used t
Type:
Grant
Filed:
July 2, 2020
Date of Patent:
June 25, 2024
Assignee:
Guangzhou College of Technology and Business
Inventors:
Xianfeng Zhang, Junrong Li, Yuehui Wang
Abstract: The present disclosure relates to a device, comprising a base and a plurality of microneedles attached to the base, wherein each microneedle has an outer surface; the outer surface of at least one microneedle being coated with a composition comprising at least one polymer and least one Peptide Nucleic Acid (PNA). The present disclosure additionally relates to a method of detecting an analyte in interstitial fluid (ISF), comprising contacting the device to a subject, for example, to human skin.
Type:
Grant
Filed:
May 29, 2020
Date of Patent:
June 25, 2024
Assignees:
Massachusetts Institute of Technology, Imperial College Innovations Limited
Inventors:
Darrell J. Irvine, Jason Y. H. Chang, Sylvain Ladame, Dana Al Sulaiman
Abstract: Methods of detecting, probing, mapping and directed sequencing of target nucleic acids are provided using a guide RNA and a Cas9 protein. Methods for detecting the binding of the guide RNA/Cas9 complex to a target nucleic acid where the guide RNA includes a 3? tail sequence that can hybridize to a probe are provided. Methods for detecting the binding of the guide RNA/Cas9 complex to a target nucleic acid where the complex is physically detected are provided.
Type:
Grant
Filed:
December 8, 2020
Date of Patent:
June 25, 2024
Assignee:
President and Fellows of Harvard College
Inventors:
George M. Church, Frederic Vigneault, Kalim U. Mir
Abstract: A method of altering a eukaryotic cell is provided including transfecting the eukaryotic cell with a nucleic acid encoding RNA complementary to genomic DNA of the eukaryotic cell, transfecting the eukaryotic cell with a nucleic acid encoding an enzyme that interacts with the RNA and cleaves the genomic DNA in a site specific manner, wherein the cell expresses the RNA and the enzyme, the RNA binds to complementary genomic DNA and the enzyme cleaves the genomic DNA in a site specific manner.
Type:
Grant
Filed:
April 6, 2023
Date of Patent:
June 25, 2024
Assignee:
President and Fellows of Harvard College
Inventors:
George M. Church, Prashant G. Mali, Luhan Yang
Abstract: Provided herein are fluorogenic sensors which can be used to detect targets (e.g., antigens). In general, the fluorogenic sensors provided herein comprise a protein (e.g., antibody, nanobody, mini-protein) and a fluorogenic small molecule conjugated to the target-binding domain (e.g., antigen-binding domain) of the protein. Upon binding of the protein to said target (e.g., antigen), the fluorogenic small molecule may increase or decrease in fluorescence or exhibit a change in fluorescence lifetime (i.e., “turn on”), thereby indicating the presence of the target (e.g., antigen).
Type:
Application
Filed:
March 25, 2022
Publication date:
June 20, 2024
Applicant:
President and Fellows of Harvard College
Inventors:
Erkin Kuru, George M. Church, Janathan Rittichier, Isaac Han, Helena de Puig Guixe
Abstract: Disclosed is a video summarisation method that includes converting an input video file to a video transcript using speech recognition, segmenting the video transcript into a plurality of paragraphs using a transformer based model, performing relevance ranking of the plurality of paragraphs by assigning a paragraph importance score to each paragraph, based on relevance of each paragraph to an overall content of the video transcript, creating a plurality of candidate summaries from the plurality of paragraphs, each candidate summary comprising two or more paragraphs, performing coherence reranking of the plurality of candidate summaries based on a combination of coherence and relevance of each candidate summary, and selecting a summary based on the coherence reranking.
Type:
Application
Filed:
December 14, 2023
Publication date:
June 20, 2024
Applicant:
University College Dublin, National University of Ireland
Inventors:
Ricardo Simon Carbajo, Sean Mahon, Hanene Jemoui
Abstract: Embodiments of the present disclosure pertain to compositions that include a metal-organic framework. The metal-organic framework includes a plurality of metals and a plurality of ligands coordinated with the plurality of metals, where the plurality of metals include bismuth, and the plurality of ligands include a plurality of hydroxy moieties that are not part of carboxyl groups. At least some of the hydroxy moieties are coordinated with bismuth to form Bi—O bonds. The metal-organic framework is in the form of a conductive and interconnected network. Additional embodiments of the present disclosure pertain to methods of utilizing the compositions to detect analytes in a sample and shield various objects from radiation.
Type:
Application
Filed:
April 12, 2022
Publication date:
June 20, 2024
Applicants:
Trustees of Dartmouth College, The Regents of The University Of California
Inventors:
Katherine A. Mirica, Aylin Aykanat, Evan Cline, Zheng Meng, Christopher G. Jones, Hosea Nelson