EP1292322A1 - Agents immunosuppresseurs derives de morbillivirus - Google Patents
Agents immunosuppresseurs derives de morbillivirusInfo
- Publication number
- EP1292322A1 EP1292322A1 EP01951595A EP01951595A EP1292322A1 EP 1292322 A1 EP1292322 A1 EP 1292322A1 EP 01951595 A EP01951595 A EP 01951595A EP 01951595 A EP01951595 A EP 01951595A EP 1292322 A1 EP1292322 A1 EP 1292322A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mice
- morbillivirus
- nucleoprotein
- preparation
- fragment
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/005—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from viruses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P17/00—Drugs for dermatological disorders
- A61P17/04—Antipruritics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/02—Immunomodulators
- A61P37/06—Immunosuppressants, e.g. drugs for graft rejection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/08—Antiallergic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K39/00—Medicinal preparations containing antigens or antibodies
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2760/00—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA ssRNA viruses negative-sense
- C12N2760/00011—Details
- C12N2760/18011—Paramyxoviridae
- C12N2760/18411—Morbillivirus, e.g. Measles virus, canine distemper
- C12N2760/18422—New viral proteins or individual genes, new structural or functional aspects of known viral proteins or genes
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2760/00—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA ssRNA viruses negative-sense
- C12N2760/00011—Details
- C12N2760/18011—Paramyxoviridae
- C12N2760/18411—Morbillivirus, e.g. Measles virus, canine distemper
- C12N2760/18434—Use of virus or viral component as vaccine, e.g. live-attenuated or inactivated virus, VLP, viral protein
Definitions
- the present invention relates to immunosuppressive agents derived from morbilliviruses.
- the genus morbillivirus of the family Paramyxoviridae, includes in particular the measles virus
- VPPR VPPR
- Morbilliviruses are enveloped viruses.
- the viral envelope of lipoprotein nature comprises two glycoproteins, hemagglutinin (HA) and the fusion protein (F) composed of two subunits F x and F 2 .
- the HA protein is involved in fixing the virus on the receptor of host cells.
- the RV receptor has been identified, at least in the case of vaccine strains, as being the CD46 membrane glycoprotein, expressed on all cells except erythrocytes.
- the viral genome consisting of a single-stranded RNA of negative polarity, is protected by a nucleocapsid, a ribonucleoprotein particle of helical form.
- the nucleocapsid is composed of three proteins: the nucleoprotein (NP) directly associated with viral RNA and two other proteins, also associated with RNA, phosphoprotein (P) and protein L, involved in the replication and transcription of viral genome.
- NP nucleoprotein
- P phosphoprotein
- protein L protein L
- T lymphocytes from the circulating blood of patients infected with a pathogenic strain or with a vaccine strain of VR exhibit a reduction in the capacity to proliferate in response to mitogens, allergens or booster antigens [COOVADIA et al . , Arch. Dis. Child, 53, no. 11, 861-867, (1978); HIRSCH et al. , this . supra; BORRO and OLDSTONE, Curr. Top. Microbiol. Immunol., 191, 85-100, (1995); HUSSEY et al., Cf. supra].
- the inventors have now developed a murine experimental model allowing the study of immunosuppression induced by morbilliviruses.
- this inhibition of the cell-mediated immune response mainly involved the NP protein, and more particularly a region corresponding to approximately 125 C-terminal amino acids of this protein, and that it did not require the intervention of the CD46 cell receptor.
- the envelope glycoproteins F and H as well as the CD46 receptor increase the immunosuppressive effect.
- morbilliviruses can induce immunosuppression in a host different from their natural host, which shows a non-species specificity of the mechanisms governing the immunosuppression induced by these viruses.
- the subject of the present invention is the use of a protein preparation comprising at least one morbillivirus nucleoprotein or a fragment thereof comprising all or part of the C-terminal region of approximately 100 to 130 amino acids of said nucleoprotein, for obtaining a drug which inhibits the cell-mediated immune response.
- said fragment comprises at least one sequence of said C-terminal region which is conserved between the nucleoproteins of different morbilliviruses, and in particular between the nucleoproteins of the morbilliviruses VR, VMC, and VPPR.
- said C-terminal region represents the portion of the nucleoprotein the sequence of which diverges the most from one morbillivirus to another, there are nevertheless within this region, several very conserved portions (cf. for example DIALLO et al. [J. Gen. Virol., 75, 233-237, (1994)].
- - a fragment comprising amino acids 489-506 of the peptide sequence of the nucleoprotein of the measles virus, or the corresponding sequence of the nucleoprotein of another morbillivirus; - a fragment comprising amino acids 516-625 of the peptide sequence of the nucleoprotein of the measles virus, or the corresponding sequence of the nucleoprotein of another morbillivirus.
- a preparation of proteins which can be used in accordance with the invention also comprises the envelope glycoproteins F and H of a morbillivirus.
- a preparation which can be used in accordance with the invention can for example be obtained by inactivation of a morbillivirus, in particular by radiation treatment ultra-violet; it can also be obtained from proteins, or their fragments, mentioned above.
- Morbillivirus proteins and their fragments which can be used in accordance with the invention, are known in themselves; they can be prepared by conventional methods, for example by purification from viral cultures, or advantageously, by genetic engineering, or by peptide synthesis.
- the inhibition of cell-mediated immunity induced by morbillivirus protein preparations is comparable to that obtained during treatment with a high dose of anti-inflammatory drugs, or based on powerful immunosuppressants, such as dexamethasone.
- the present invention can be implemented as part of the prevention or treatment of all pathologies where it is desirable to inhibit the cell-mediated immune response.
- examples include inflammatory pathologies, resulting in particular from infection with a pathogenic agent (leprosy, tuberculosis, leishmaniasis, listeriosis, candidiasis, etc.) or allergic contact dermatitis induced by various sensitizing agents. It can also be used in the prevention or treatment of transplant rejection, or of graft versus host disease.
- the present invention can also be used in the context of the development of new vaccines, in particular anti-measles vaccines, lacking immunosuppressive effects or having attenuated immunosuppressive effects.
- These vaccines can in particular be obtained from morbilliviruses in which all or part of the nucleoprotein, and in particular the C-terminal region of 110 to 130 amino acids approximately from said nucleoprotein has been deleted or altered. It can be altered in particular by one or more modifications at the level of at least one of the sequences conserved between the different morbilliviruses and / or by deletion of one or more of said sequences conserved.
- said modification or said deletion relates to at least one sequences 411-421, 489-506, or 516-625, mentioned above.
- the present invention also relates to methods for evaluating the immunosuppressive potential of a preparation of a morbillivirus, for example of an anti-morbillivirus vaccine, or of a preparation which can be used as an immunosuppressant in accordance with the invention.
- said immunosuppressive potential is evaluated by determining the amount of NP protein of said morbillivirus present in said preparation.
- said method comprises bringing said preparation into contact with at least one antibody directed against said NP protein, and preferably, at least one antibody directed against an epitope carried by the region C-terminal of approximately 110 amino acids of said NP protein, and the quantification of the antibody / antigen complex formed, by any appropriate means, known in themselves to those skilled in the art.
- said immunosuppressive potential is evaluated by the use of mice sensitized to DNFB or to KLH.
- mice are transgenic mice expressing the CD46 receptor.
- Transgenic mice expressing the CD46 receptor are known in themselves; they can for example be obtained as described by THORLEY et al. [Eur. J. Immunol., 27, 726-734, (1997)] or by EVLASHEV et al. [J. Virol., 74, 1373-1382, (2000)].
- EXAMPLE 1 INHIBITION OF DELAYED HYPERSENSITIVITY REACTIONS IN MICE BY MEASUREMENT VIRUS INACTIVE TO UV.
- VR Edmonston ATCC VR-24
- RSV respiratory syncitial virus
- the viruses were spread separately on fibroblastic monkey kidney cells (Vero). After mechanical lysis of the cells, carried out when 50% of them have a cytopathic appearance, the cell lysate containing the infectious viral particles was frozen at -80 ° C. and thawed, then centrifuged and finally stored at -80 ° C. Each batch of virus was inactivated by exposure to UV (254 nm) for 45 min at 4 ° C. The loss of infectiousness was tested on Vero cells. A “dummy” preparation consisting of the supernatant of cultures of uninfected Vero cells was used as a control.
- Intra-peritoneal injections of VR were carried out either on wild type mice or on transgenic mice expressing the CD46 molecule.
- DNFB 2,4-dinitrofluorobenzene, SIGMA
- HSC contact hypersensitivity reaction
- T and T 0 are respectively the values of the thickness of the ear before and after elicitation.
- Delayed hypersensitivity was measured by a conventional test to measure leg pad edema.
- the mice Six hours after the injection of the viral preparation or of the dummy preparation, the mice were sensitized by subcutaneous injection of 300 ⁇ g of KLH (keyhole limpet hemocyanin, SIGMA) emulsified in complete Freund's adjuvant. 7 days later, a second injection (150 ⁇ g of KLH in PBS buffer) was carried out in the pads of the left paw of sensitized animals, and non-sensitized animals of a control group; PBS alone was injected into the right paw. The thickness of the pads was measured 24 hours before and 48 hours after the booster injection. The edema of the pads is calculated by the following formula: [(TT 0 ) right pad] - [(TT 0 ) left pad], where T and T 0 are the values of the pad thickness before and after the booster injection.
- mice injected with VR-UV develop a delayed hypersensitivity response, whether it is contact hypersensitivity, or tuberculin-type hypersensitivity, approximately half as large as the control mice injected. with a dummy preparation.
- control mice injected with VRS-UV develop a delayed hypersensitivity response, equivalent to that of control mice injected with the dummy preparation.
- VR therefore induces immunosuppression in vivo, in the absence of any viral replication.
- EXAMPLE 2 ROLE OF NUCLEOPROTEIN (NP) OF THE ROUGEOLE VIRUS IN THE INHIBITION OF DELAYED HYPERSENSITIVITY REACTIONS IN MICE.
- the recombinant nucleoprotein was prepared according to the following protocol: Sf-9 cells of Spodoptera frugiperda were infected at a rate of 1 PFU per cell, by a recombinant baculovirus (AcNPVNP), comprising the NP NP coding sequence. After three days of culture, the cells collected by centrifugation (200 g, 5 min, 4 ° C) and the cell pellet washed in PBS buffer. The cells were then placed in a hypotonic buffer (10 mM Tris-HCl, pH 7.5; 10 mM NaCl) and lysed by the addition of a nonionic detergent, Nonidet P-40 1%.
- a hypotonic buffer (10 mM Tris-HCl, pH 7.5; 10 mM NaCl
- protease inhibitors were added at the time of cell lysis and the lysates were kept at 4 ° C.
- the lysates were centrifuged at 1000 g, then an ultracentrifugation (1000 g, 10 min) in the presence of 10 M EDTA was carried out, thus eliminating cell debris.
- the recovered supernatant was centrifuged in CsCl for
- This gradient is composed of steps of 2 ml of 40% CsCl (W / V), 2 ml of 30% CsCl, 2 ml of 25% CsCl and 2 ml of 5% sucrose
- Figure 2 (a) DNFB hypersensitivity test in C57BL / 6 mice
- NP induces in C57BL / 6 mice an inhibition of the hypersensitivity reaction similar to DNFB to that caused by VR-UV . Additional experiments carried out with lower concentrations of NP show that this effect is dose-dependent; the inhibition induced by the injection of 40 ⁇ g of NP is slightly weaker than that observed after injection of 100 ⁇ g, and no inhibition is observed after injection of 4 ⁇ g of NP.
- mice To analyze the role of the VR envelope proteins in induced immunosuppression in mice, a recombinant measles virus lacking the HA and F envelope glycoproteins was used, either on C57BL / 6 mice or on transgenic mice expressing the CD46 molecule.
- the transgenic mice for CD46 were produced by the injection, in mouse oocytes, of the cDNA of the human gene coding for the molecular isoform CD46
- the VR Edmonston tag (EDtag) is a recombinant VR derived from the Edmonston strain by molecular cloning of the entire genome [TOBER et al. , J. Virol., 72, no. 10, 8124-8132, (1998)].
- VR MGV is a recombinant VR devoid of the HA and F envelope glycoproteins [SPIELHOFER et al. , J. Virol. , 72, no. 3, 2150-2159, (1998)].
- the VR strains were propagated, harvested, and inactivated by UV according to the protocol described in Example 1 above.
- MGV-UV is also comparable to that generated by VR-UV or the recombinant EDtag-UV control virus.
- DNBS 2,4-dinitrobenzene sulfonic acid
- 100 ⁇ g of NP, 5 ⁇ 10 6 particles of VR-UV, or 500 ⁇ l of dummy preparation were injected into the peritoneal cavity of the mice, and the animals were then sensitized to DNFB, according to the protocol described in Example 1 above.
- the spleen of each animal was removed and a cell suspension was produced by grinding the organs between plates of sintered glass.
- the splenocytes were washed and the red blood cells lysed in the presence of 0.83% NH 4 C1 for 5 minutes at 37 ° C.
- Splenocytes were similarly isolated from spleens of naive mice, then irradiated at 1500 rad and loaded with hapten by incubation in a solution of DNBS 4 mM in order to play the role of CPAg.
- splenocytes sensitized mice and splenocytes loaded hapten were co-cultured in RPMI 1640 10% FCS at 2 ⁇ lO ⁇ cells per ml. After 5 days in culture, the splenocytes restimulated by culturing in the presence of APCs are the effector population • the test.
- EL-4 cells (10 6 cells per ml), acting as target cells were cultured in RPMI 1640, 10% FCS and in the presence of tritiated thymidine (10 ⁇ Ci per ml of culture medium for 3 hours at 37 ° C), then washed twice in RPMI 1640 10% SVF.
- a part of the EL-4 cells labeled with tritium was then loaded with DNBS as described above.
- the target cells were distributed in 96-well plates at the rate of 2 ⁇ 10 4 cells per well.
- the effector cells were also distributed in the same wells in a decreasing target / effector ratio.
- Control wells spontaneous lysis
- LTCD8 T lymphocytes constituting the effector population involved in contact hypersensitivity to DNFB [KEHREN et al. , J. Exp. Med., 189, no. 5, 779-786, (1999) 3, it was investigated whether the inhibition of the HSC reaction to DNFB induced by VR-UV and NP was due to a defect in activation of LTCD8 during awareness phase. The experiments were carried out on C57BL / 6 mice, on transgenic mice expressing the CD46 molecule, or on mice lacking the Fc ⁇ R receptor.
- the LTCD8 of each mouse originating from the lymph nodes draining the zone of application of DNFB, were isolated according to the following protocol:
- lymph nodes draining the area of application of the aptene (inguinal, sub-brachial and axillary) of each animal were removed 4 days after sensitization of the animals, and placed in RPMI 1640, 10% SVF.
- the cells were then incubated 30 min at 37 D C in the presence of rat monoclonal antibodies. ' GK1.5
- M5 / 114 (anti-class II), RB6-8C5 (anti-granulocytes).
- the cells were washed in RPMI 1640 10% FCS. The cells were then incubated for 30 min at 4 ° C. with shaking in the presence of magnetic beads coupled to an immunoglobulin directed against rat antibodies (BIOMAG). The cells bound to the antibodies, recognized by the immunoglobulins present on the surface of the beads, were eliminated by passing the suspension over a magnet. The purification of the lymphocytes was verified by labeling the cells selected negatively with an anti-CD8 antibody and an analysis by flow cytometry. The cell population thus negatively selected consisted of more than 95% of CD8 T lymphocytes.
- the LT CD8 thus isolated were co-cultured for three days in the presence of either CPAg prepared from splenocytes of naive mice, coupled to DNBS, or coupled with a control hapten, TNBS (2,4,6-trinitrobenzene sulfonic acid , SIGMA), or CPAg coupled to DNBS prepared from splenocytes of mice having received 100 ⁇ g of NP, 5 ⁇ 10 6 particles of VR-UV, 500 ⁇ l of dummy preparation, or 500 ⁇ l of PBS buffer by injection into the peritoneal cavity.
- the CPAg were prepared according to the protocol described in Example 4 above.
- LT CD8 T lymphocytes were cultured at the rate of 5 ⁇ 10 5 cells per well in the presence of 10 6 CPAg coupled or not with a hapten.
- CPAg Cspecific progenitor
- LT CD8 and CPAg were cultured separately to ensure the absence of spontaneous proliferation of LT CD8 and proper irradiation of CPAg.
- Cell culture was carried out for 90 hours. After 72 hours, 0.5 ⁇ Ci of tritiated thymidine were added to each well, the cells were transferred to filters, and the number of counts per minute was counted in the presence of scintillation liquid (ALLAC counter).
- ALLAC counter scintillation liquid
- the hapten specific proliferation indices were calculated according to the following formula: [Cpm (LTCD8 + CPAg coupled to hapten)] / [Cpm (LTCD8 + CPAg not coupled to -'haptene)]
- the values of the mean indices of specific proliferation of the antigen are represented by FIGS. 5 (a) (CPAg of naive mice) and 5 (b) (CPAg of mice having received the same treatment as the LTCD8 donors). The results illustrated in FIG.
- mice 5 (a) show that the LTCD8 of mice injected with the dummy preparation and sensitized respond strongly to the CPAg of naive mice coupled to DNBS, but not to the CPAg of naive mice coupled with a control hapten, which shows the antigen-specific nature of the response.
- mice injected with the preparation of VR-UV or NP an inhibition of the response of the LTCD8 of the C57BL / 6 mice or of the CD46 mice to the CPAg of naive mice coupled to DNBS is observed. This inhibition is not observed in the case of LTCD8 from mice lacking the Fc ⁇ R receptor.
- results illustrated in FIG. 5 (b) show that, in the presence of CPAg originating from mice injected with VR-UV, or from NP, the specific antigen proliferation of CD8 T lymphocytes of C57BL / 6 mice or transgenic for CD46, sensitized DNFB is inhibited.
- CD8 T cells from sensitized mice having received an injection of VR-UV or NP have a proliferation of CD8 T cell proliferation.
- the CPAg from mice injected with VR-UV or NP are unable to activate CD8 T lymphocytes in vitro.
- mice were sensitized to DNFB as described in Example 1 above. 5 days later, 100 ⁇ g of NP, 5 ⁇ 10 6 particles of VR-UV, or 500 ⁇ l of dummy preparation were injected into the peritoneal cavity of the mice, and the application of DNFB was carried out 6 hours later, according to the protocol described in Example 1 above.
- FIGS. 6 (a) The thickness of the edema at different times following the application of DNFB was measured, and the results are illustrated in FIGS. 6 (a) for the C57BL / 6 mice and 6 (b) for the transgenic mice for CD46.
- the VR-UV inhibitory effect is also analogous to that observed in the case of an injection carried out before there sensitization to DNFB (cf. Example 3). A complete inhibition of the formation of edema is observed.
- the amount of nucleoprotein in virus preparations was measured by ELISA.
- 96-well plates were coated with anti-NP 33.4 antibodies [LIBEAU et al. , Vet. Rec, 134, 300-304, (1994)] in carbonate buffer (1/600 dilution of ascites liquids).
- C57BL / 6 mice or mice lacking the Fc ⁇ R receptor received intraperitoneal injections of 5 ⁇ 10 6 particles of UV-inactivated Square Disease Virus (MCV-UV), of 100 ⁇ g of VR NP, of 5 ⁇ 10 6 particles of VR-UV, or 500 ⁇ l of PBS, and were then sensitized to DNFB, according to the protocol described in Example 1 above.
- MCV-UV UV-inactivated Square Disease Virus
- mice non-sensitized mice
- NPs are only effective in mice deficient in the FcR receptor ( Figure 7b), indicating the need for FcR for the immunosuppressive effect of morbilliviruses.
- NPc was purified from the QIAexpressionist® cell pellet from QIAGEN, according to the protocol indicated by the manufacturer.
- C57BL / 6 mice received intraperitoneal injections of 100 ⁇ g of PPRVNP, 100 ⁇ g of VR-NPc, 1 g of dexamethasone or 500 ⁇ l of PBS, and were then sensitized to KLH, according to the protocol described in Example 1 above.
- Figure 8 represents the average size of the edema of the pads at 24 hours and 48 hours after the booster injection.
- the mixed lymphocyte reaction constitutes an in vitro model of allograft rejection.
- mice BALB / c mice were injected intraperitoneally with 10 5 particles of VR-UV, or 500 ⁇ l of dummy preparation.
- splenocytes were prepared from the spleens of these mice, and stimulated, in mixed culture, with splenocytes obtained from C57BL / 6 mice irradiated at 1500 rad.
- results are illustrated in FIG. 9. These results show an inhibition, by the VR-UV of the reaction of BALB / c mouse lymphocytes in response to stimulation by C57BL / 6 mouse cells.
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Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0007587A FR2810244B1 (fr) | 2000-06-14 | 2000-06-14 | Agents immunosuppresseurs derives de morbillivirus |
| FR0007587 | 2000-06-14 | ||
| PCT/EP2001/006772 WO2001095926A1 (fr) | 2000-06-14 | 2001-06-15 | Agents immunosuppresseurs derives de morbillivirus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1292322A1 true EP1292322A1 (fr) | 2003-03-19 |
Family
ID=8851259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01951595A Withdrawn EP1292322A1 (fr) | 2000-06-14 | 2001-06-15 | Agents immunosuppresseurs derives de morbillivirus |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20040091501A1 (fr) |
| EP (1) | EP1292322A1 (fr) |
| JP (1) | JP2004503506A (fr) |
| AU (1) | AU2001272479A1 (fr) |
| CA (1) | CA2412356A1 (fr) |
| FR (1) | FR2810244B1 (fr) |
| WO (1) | WO2001095926A1 (fr) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5942491A (en) * | 1996-10-22 | 1999-08-24 | Board Of Trustees Operating Michigan State University | Method and compositions for treating arthritis |
-
2000
- 2000-06-14 FR FR0007587A patent/FR2810244B1/fr not_active Expired - Fee Related
-
2001
- 2001-06-15 WO PCT/EP2001/006772 patent/WO2001095926A1/fr not_active Ceased
- 2001-06-15 AU AU2001272479A patent/AU2001272479A1/en not_active Abandoned
- 2001-06-15 EP EP01951595A patent/EP1292322A1/fr not_active Withdrawn
- 2001-06-15 JP JP2002510104A patent/JP2004503506A/ja active Pending
- 2001-06-15 CA CA002412356A patent/CA2412356A1/fr not_active Abandoned
- 2001-06-15 US US10/311,269 patent/US20040091501A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0195926A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2810244A1 (fr) | 2001-12-21 |
| CA2412356A1 (fr) | 2001-12-20 |
| JP2004503506A (ja) | 2004-02-05 |
| FR2810244B1 (fr) | 2003-01-10 |
| AU2001272479A1 (en) | 2001-12-24 |
| US20040091501A1 (en) | 2004-05-13 |
| WO2001095926A1 (fr) | 2001-12-20 |
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