CO2021010347A2 - Células modificadas por receptor de antígeno quimérico para el tratamiento de cánceres que expresan cldn6 - Google Patents

Células modificadas por receptor de antígeno quimérico para el tratamiento de cánceres que expresan cldn6

Info

Publication number
CO2021010347A2
CO2021010347A2 CONC2021/0010347A CO2021010347A CO2021010347A2 CO 2021010347 A2 CO2021010347 A2 CO 2021010347A2 CO 2021010347 A CO2021010347 A CO 2021010347A CO 2021010347 A2 CO2021010347 A2 CO 2021010347A2
Authority
CO
Colombia
Prior art keywords
antigen receptor
chimeric antigen
cldn6
treatment
modified cells
Prior art date
Application number
CONC2021/0010347A
Other languages
English (en)
Spanish (es)
Inventor
Ugur Sahin
Petra Oehm
Benjamin Rengstl
Katharina Reinhard
Kristina Michel
Original Assignee
Biontech Cell & Gene Therapies Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Biontech Cell & Gene Therapies Gmbh filed Critical Biontech Cell & Gene Therapies Gmbh
Publication of CO2021010347A2 publication Critical patent/CO2021010347A2/es

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/70Carbohydrates; Sugars; Derivatives thereof
    • A61K31/7088Compounds having three or more nucleosides or nucleotides
    • A61K31/7105Natural ribonucleic acids, i.e. containing only riboses attached to adenine, guanine, cytosine or uracil and having 3'-5' phosphodiester links
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K40/00Cellular immunotherapy
    • A61K40/10Cellular immunotherapy characterised by the cell type used
    • A61K40/11T-cells, e.g. tumour infiltrating lymphocytes [TIL] or regulatory T [Treg] cells; Lymphokine-activated killer [LAK] cells
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K40/00Cellular immunotherapy
    • A61K40/30Cellular immunotherapy characterised by the recombinant expression of specific molecules in the cells of the immune system
    • A61K40/31Chimeric antigen receptors [CAR]
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K40/00Cellular immunotherapy
    • A61K40/40Cellular immunotherapy characterised by antigens that are targeted or presented by cells of the immune system
    • A61K40/41Vertebrate antigens
    • A61K40/42Cancer antigens
    • A61K40/4264Cancer antigens from embryonic or fetal origin
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P35/00Antineoplastic agents
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/435Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • C07K14/705Receptors; Cell surface antigens; Cell surface determinants
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/435Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • C07K14/705Receptors; Cell surface antigens; Cell surface determinants
    • C07K14/70503Immunoglobulin superfamily
    • C07K14/7051T-cell receptor (TcR)-CD3 complex
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/435Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • C07K14/705Receptors; Cell surface antigens; Cell surface determinants
    • C07K14/70503Immunoglobulin superfamily
    • C07K14/70517CD8
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/435Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • C07K14/705Receptors; Cell surface antigens; Cell surface determinants
    • C07K14/70578NGF-receptor/TNF-receptor superfamily, e.g. CD27, CD30, CD40, CD95
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K16/00Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
    • C07K16/18Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans
    • C07K16/28Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N15/00Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
    • C12N15/09Recombinant DNA-technology
    • C12N15/11DNA or RNA fragments; Modified forms thereof; Non-coding nucleic acids having a biological activity
    • C12N15/62DNA sequences coding for fusion proteins
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N15/00Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
    • C12N15/09Recombinant DNA-technology
    • C12N15/63Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
    • C12N15/79Vectors or expression systems specially adapted for eukaryotic hosts
    • C12N15/85Vectors or expression systems specially adapted for eukaryotic hosts for animal cells
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N15/00Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
    • C12N15/09Recombinant DNA-technology
    • C12N15/63Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
    • C12N15/79Vectors or expression systems specially adapted for eukaryotic hosts
    • C12N15/85Vectors or expression systems specially adapted for eukaryotic hosts for animal cells
    • C12N15/86Viral vectors
    • C12N15/867Retroviral vectors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00Medicinal preparations containing antigens or antibodies
    • A61K2039/58Medicinal preparations containing antigens or antibodies raising an immune response against a target which is not the antigen used for immunisation
    • A61K2039/585Medicinal preparations containing antigens or antibodies raising an immune response against a target which is not the antigen used for immunisation wherein the target is cancer
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2121/00Preparations for use in therapy
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2239/00Indexing codes associated with cellular immunotherapy of group A61K40/00
    • A61K2239/31Indexing codes associated with cellular immunotherapy of group A61K40/00 characterized by the route of administration
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2239/00Indexing codes associated with cellular immunotherapy of group A61K40/00
    • A61K2239/38Indexing codes associated with cellular immunotherapy of group A61K40/00 characterised by the dose, timing or administration schedule
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2300/00Mixtures or combinations of active ingredients, wherein at least one active ingredient is fully defined in groups A61K31/00 - A61K41/00
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2317/00Immunoglobulins specific features
    • C07K2317/60Immunoglobulins specific features characterized by non-natural combinations of immunoglobulin fragments
    • C07K2317/62Immunoglobulins specific features characterized by non-natural combinations of immunoglobulin fragments comprising only variable region components
    • C07K2317/622Single chain antibody (scFv)
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2319/00Fusion polypeptide
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2319/00Fusion polypeptide
    • C07K2319/01Fusion polypeptide containing a localisation/targetting motif
    • C07K2319/02Fusion polypeptide containing a localisation/targetting motif containing a signal sequence
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K2319/00Fusion polypeptide
    • C07K2319/01Fusion polypeptide containing a localisation/targetting motif
    • C07K2319/03Fusion polypeptide containing a localisation/targetting motif containing a transmembrane segment
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N2510/00Genetically modified cells

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Organic Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Immunology (AREA)
  • Zoology (AREA)
  • Biochemistry (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Medicinal Chemistry (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Biotechnology (AREA)
  • General Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Wood Science & Technology (AREA)
  • Epidemiology (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Cell Biology (AREA)
  • Microbiology (AREA)
  • Physics & Mathematics (AREA)
  • Plant Pathology (AREA)
  • Toxicology (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Virology (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Peptides Or Proteins (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
CONC2021/0010347A 2019-02-08 2021-08-05 Células modificadas por receptor de antígeno quimérico para el tratamiento de cánceres que expresan cldn6 CO2021010347A2 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP2019053156 2019-02-08
PCT/EP2020/052867 WO2020161186A1 (en) 2019-02-08 2020-02-05 Chimeric antigen receptor-modified cells for the treatment of cldn6-expressing cancers

Publications (1)

Publication Number Publication Date
CO2021010347A2 true CO2021010347A2 (es) 2022-01-17

Family

ID=69374312

Family Applications (1)

Application Number Title Priority Date Filing Date
CONC2021/0010347A CO2021010347A2 (es) 2019-02-08 2021-08-05 Células modificadas por receptor de antígeno quimérico para el tratamiento de cánceres que expresan cldn6

Country Status (26)

Country Link
US (1) US20220184119A1 (enExample)
EP (2) EP4501351A3 (enExample)
JP (2) JP7663500B2 (enExample)
KR (1) KR20210124237A (enExample)
CN (1) CN113727720A (enExample)
AU (1) AU2020217868A1 (enExample)
BR (1) BR112021015429A2 (enExample)
CA (1) CA3129140A1 (enExample)
CL (1) CL2021002067A1 (enExample)
CO (1) CO2021010347A2 (enExample)
CU (1) CU20210067A7 (enExample)
DK (1) DK3920939T3 (enExample)
ES (1) ES3002958T3 (enExample)
FI (1) FI3920939T3 (enExample)
HR (1) HRP20250016T1 (enExample)
HU (1) HUE070174T2 (enExample)
IL (1) IL285122A (enExample)
LT (1) LT3920939T (enExample)
MX (1) MX2021009507A (enExample)
PL (1) PL3920939T3 (enExample)
PT (1) PT3920939T (enExample)
RS (1) RS66364B1 (enExample)
SG (1) SG11202108339TA (enExample)
SI (1) SI3920939T1 (enExample)
SM (1) SMT202500012T1 (enExample)
WO (1) WO2020161186A1 (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021129927A1 (en) * 2019-12-23 2021-07-01 Biontech Cell & Gene Therapies Gmbh Treatment with immune effector cells engineered to express an antigen receptor
KR20240133791A (ko) * 2021-12-09 2024-09-04 비온테크 에스이 Cldn6를 발현하는 암을 치료하기 위한 키메라 항원 수용체 변형 세포
WO2024046572A1 (en) * 2022-09-01 2024-03-07 BioNTech SE Chimeric antigen receptor-modified cells for the treatment of cldn6 expressing cancer
CN114478802B (zh) * 2022-01-28 2023-05-26 郑州大学 一种嵌合抗原受体及其应用
CN114410588B (zh) * 2022-01-29 2022-11-04 西安电子科技大学 一种α1β1整合素依赖增强型CAR巨噬细胞及其制备方法和应用
CN120484126B (zh) * 2022-07-28 2025-11-18 乐普创一生物科技(上海)有限公司 抗MerTK抗体及其用途
KR20250046264A (ko) * 2022-07-29 2025-04-02 레전드 바이오테크 아일랜드 리미티드 클라우딘6 겹합 모이어티 및 이의 용도
CN120225555A (zh) * 2022-10-25 2025-06-27 恺兴生命科技(上海)有限公司 抗体及其应用
WO2025184170A1 (en) 2024-02-27 2025-09-04 Overt Bio, Inc. Methods and compositions for improving t cell function in an immunosuppressive environment

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001029058A1 (en) 1999-10-15 2001-04-26 University Of Massachusetts Rna interference pathway genes as tools for targeted genetic interference
US6326193B1 (en) 1999-11-05 2001-12-04 Cambria Biosciences, Llc Insect control agent
WO2001096584A2 (en) 2000-06-12 2001-12-20 Akkadix Corporation Materials and methods for the control of nematodes
WO2013143555A1 (en) 2012-03-26 2013-10-03 Biontech Ag Rna formulation for immunotherapy
US10640569B2 (en) 2013-12-19 2020-05-05 Novartis Ag Human mesothelin chimeric antigen receptors and uses thereof
DK3708579T3 (da) * 2014-04-01 2024-07-22 Biontech Cell & Gene Therapies Gmbh Claudin-6-specifikke immunreceptorer og t-celleepitoper
MA40921A (fr) 2014-11-05 2017-09-12 Abbvie Stemcentrx Llc Récepteurs antigéniques chimériques anti-cldn et procédés d'utilisation
CN106146666B (zh) 2015-03-26 2019-09-06 科济生物医药(上海)有限公司 靶向cldn6的免疫效应细胞及其制备方法和应用
WO2016180467A1 (en) * 2015-05-11 2016-11-17 Biontech Cell & Gene Therapies Gmbh Enhancing the effect of car-engineered t cells by means of nucleic acid vaccination
MX2020002901A (es) * 2017-09-19 2020-07-22 Massachusetts Inst Technology Composiciones para la terapia con celulas t con receptores de antigeno quimerico y usos de las mismas.
CN109206524B (zh) * 2018-09-25 2022-04-05 山东兴瑞生物科技有限公司 抗Claudin18A2嵌合抗原受体、其修饰的T细胞及T细胞制备方法和用途

Also Published As

Publication number Publication date
LT3920939T (lt) 2025-01-10
US20220184119A1 (en) 2022-06-16
EP3920939B1 (en) 2024-11-13
DK3920939T3 (da) 2025-01-13
HUE070174T2 (hu) 2025-05-28
MX2021009507A (es) 2021-09-08
EP4501351A2 (en) 2025-02-05
SMT202500012T1 (it) 2025-03-12
JP7663500B2 (ja) 2025-04-16
EP4501351A3 (en) 2025-05-07
IL285122A (en) 2021-09-30
EP3920939A1 (en) 2021-12-15
BR112021015429A2 (pt) 2021-10-05
WO2020161186A1 (en) 2020-08-13
KR20210124237A (ko) 2021-10-14
PL3920939T3 (pl) 2025-02-17
FI3920939T3 (fi) 2025-01-03
CU20210067A7 (es) 2022-03-07
PT3920939T (pt) 2025-01-08
RS66364B1 (sr) 2025-01-31
JP2022520059A (ja) 2022-03-28
AU2020217868A1 (en) 2021-08-12
SG11202108339TA (en) 2021-08-30
CN113727720A (zh) 2021-11-30
CA3129140A1 (en) 2020-08-13
HRP20250016T1 (hr) 2025-03-14
JP2025060882A (ja) 2025-04-10
ES3002958T3 (en) 2025-03-10
SI3920939T1 (sl) 2025-03-31
CL2021002067A1 (es) 2022-03-11

Similar Documents

Publication Publication Date Title
CO2021010347A2 (es) Células modificadas por receptor de antígeno quimérico para el tratamiento de cánceres que expresan cldn6
CL2018002828A1 (es) Anticuerpos biespecíficos contra el receptor de fc gamma cd25 para la reducción de células específicas de tumores.
CO2021010075A2 (es) Receptores de antígenos quiméricos de gprc5d y células que los expresan
MX2018010733A (es) Celulas que expresan multiples moleculas del receptor de antigeno quimerico (car) y usos de las mismas.
BR112022008522A2 (pt) Usos de receptores de antígeno quimérico anti-bcma
MX2016013239A (es) Tratamiento de cancer utilizando receptor quimerico de antigeno anti-cd19.
MX2017012939A (es) Terapias cd20, terapias cd22 y terapias de combinacion con una celula que expresa un receptor quimerico de antigeno (car) de cd19.
BR112017001183A2 (pt) tratamento de câncer usando receptor de antígeno quimérico anti-bcma humanizado
MX390517B (es) Uso de moduladores del receptor de glucocorticoides para potenciar inhibidores de puntos de regulacion.
MX2019001469A (es) Tratamiento del cáncer usando un receptor de antígeno quimérico en combinación con un inhibidor de una molécula de macrófago pro- m2.
MX2015010836A (es) Tratamiento de cancer utilizando un receptor quimerico de antigeno anti egfrviii humanizado.
UY35399A (es) Conjugados de fármacos con anticuerpos
AR102879A1 (es) Métodos para el tratamiento de tumores cerebrales
SV2016005266A (es) Anticuerpos anti-cd38 para el tratamiento de leucemia linfoblástica aguda
MX2016005801A (es) Terapia de combinacion de un anticuerpo anti cd20 con un inhibidor de btk.
MX2020009463A (es) Receptor de antígeno quimérico de receptor de il-13 alfa 2 (il13ra2) para inmunoterapia de células t específica para tumor.
MX2016014000A (es) Anticuerpo igf-1r y su uso como un vehiculo con especificidad de objetivo para el tratamiento contra el cancer.
CO2022000705A2 (es) Receptor de antígeno quimérico (car) anti-hk2
CL2022001299A1 (es) Receptores de antígenos quiméricos anti-cd79, células car-t y sus usos.
CL2019002323A1 (es) Anticuerpo dirigido a il-13ra2 y su uso.
MX2017000840A (es) Metodo para predecir el resultado de un tratamiento con aflibercept de un paciente que se sospecha que padece un cancer.
MX2020009879A (es) Anticuerpos anti-il-27 y sus usos.
MX2022003719A (es) Anticuerpos anti-il-27 y sus usos.
CU20220039A7 (es) Combinaciones y kits que incluyen células efectoras inmunitarias modificadas por ingeniería genética para expresar receptores de antígenos
MX2019010941A (es) Receptores de antigeno y usos de los mismos.