Journal: Journal of immunology (Baltimore, Md. : 1950)

Article Title: Suppression of ongoing experimental autoimmune encephalomyelitis by neutralizing the function of the p28 subunit of IL-27.

doi: 10.4049/jimmunol.173.10.6465

Figure Lengend Snippet: FIGURE 1. DNA vaccination-based anti-IL-27 Abs are highly specific. The Western blot shows that our DNA vaccination-based anti-IL-27 Ab binds mouse IL-27 p28 (lane 1; 27 kDa), but not recombinant mouse IL-18, IL-12, or TNF- (lanes 2, 3, and 4, respectively). A, Coomassie Blue staining verifies the appearance of each cytokine on the loaded gel. B, Western blot showing that of these cytokines, our DNA vaccination-based anti-IL-27 Ab binds only mouse IL-27 p28. These Ab also bound natural mouse IL-27 (verified by sequencing) from supernatant of activated MOGp35–55-specific cultured primary draining lymph node cells (not shown).

Article Snippet: Our recombinant mouse IL-27 p28, produced as described above, and commercially available recombinant mouse IL-18, IL-12, and TNF- (R&D Systems) were each subjected to Western blot analysis according to the protocol described in detail previously (29, 32), with the minor modification of using a 12% (rather than 8%) running gel.

Techniques: Western Blot, Recombinant, Staining, Sequencing, Cell Culture

Journal: Journal of immunology (Baltimore, Md. : 1950)

Article Title: Suppression of ongoing experimental autoimmune encephalomyelitis by neutralizing the function of the p28 subunit of IL-27.

doi: 10.4049/jimmunol.173.10.6465

Figure Lengend Snippet: FIGURE 2. Anti-p28 Abs suppresses ongoing severe EAE. A, Four groups of 10 mice each were subjected to MOGp35–55-induced EAE. Beginning at the onset of disease (day 17), these mice were repeatedly (every other day) administered 100 g/mouse of anti-p28 Ab (f), IgG obtained from naive Lewis rats (Œ), or PBS (E). An observer blind to the experimental procedure scored EAE daily. The experiment summarized in Fig. 2 shows the results of one of three experiments performed under similar experimental conditions, with similar results. The mean maximal score SE represents six mice per group. The other four mice were killed on day 30 and subjected to histological evaluation (see Fig. 3). B, Five groups of six mice each were subjected to MOGp35–55-induced EAE. Beginning at the onset of disease (day 17), these mice were repeatedly (every other day) administered 100 g of anti-p28 Ab/mouse (f), anti-IL-18 Ab (F), anti-IL-1 Ab (), IgG obtained from Lewis rats previously subjected to an empty plasmid administration (Œ), or PBS (E). An observer blind to the experimental procedure scored EAE daily. Results are shown as the mean maximal score SE of six mice per group. C, Three groups of six mice each were subjected to induction of transferred EAE. Beginning at the onset of disease (day 5), these mice were repeatedly (every other day) administered 100 g of anti-p28 Ab/mouse (f), IgG obtained from naive Lewis rats (Œ), or PBS (E). An observer blind to the experimental procedure scored EAE daily. Results are shown as mean maximal score SE of six mice per group.

Article Snippet: Our recombinant mouse IL-27 p28, produced as described above, and commercially available recombinant mouse IL-18, IL-12, and TNF- (R&D Systems) were each subjected to Western blot analysis according to the protocol described in detail previously (29, 32), with the minor modification of using a 12% (rather than 8%) running gel.

Techniques: Plasmid Preparation

Journal: Journal of immunology (Baltimore, Md. : 1950)

Article Title: Suppression of ongoing experimental autoimmune encephalomyelitis by neutralizing the function of the p28 subunit of IL-27.

doi: 10.4049/jimmunol.173.10.6465

Figure Lengend Snippet: FIGURE 4. The beneficial effect of anti-IL-27 is dependent on the con- tinuing administration of protective Abs. Three groups of six mice each were subjected to active induction of EAE. Beginning 1 day after the onset of disease (day 17), these mice were treated with either a single dose of anti-p28 Ab (100 g/mouse; E) or with repeated administration (every other day) of this Ab (Œ) or PBS (f). An observer blind to the experi- mental procedure scored EAE daily. Results are shown as the mean max- imal score SE of six mice per group.

Article Snippet: Our recombinant mouse IL-27 p28, produced as described above, and commercially available recombinant mouse IL-18, IL-12, and TNF- (R&D Systems) were each subjected to Western blot analysis according to the protocol described in detail previously (29, 32), with the minor modification of using a 12% (rather than 8%) running gel.

Techniques:

Journal: Journal of immunology (Baltimore, Md. : 1950)

Article Title: Suppression of ongoing experimental autoimmune encephalomyelitis by neutralizing the function of the p28 subunit of IL-27.

doi: 10.4049/jimmunol.173.10.6465

Figure Lengend Snippet: FIGURE 3. Anti-IL-27 therapy reduces the histological score of EAE. Histological evaluation was conducted 30 days after disease induction. Lumbar spinal cord samples from naive mice or from EAE mice treated with PBS, IgG from naive mice, or anti-IL-27 p28 Abs were subjected to histological analysis (nine sections each group). The arrowheads point to the parenchymal mononuclear cell infiltration. The scale for mononuclear cell infiltration used was: 0, no mononuclear cell infiltration; 1, one to five perivascular lesions per section with minimal parenchymal infiltration; 2, five to 10 perivascular lesions per section with parenchymal infiltration; and 3, 10 perivascular lesions per section with extensive parenchymal infiltration. The mean histological score SE was calculated for each group.

Article Snippet: Our recombinant mouse IL-27 p28, produced as described above, and commercially available recombinant mouse IL-18, IL-12, and TNF- (R&D Systems) were each subjected to Western blot analysis according to the protocol described in detail previously (29, 32), with the minor modification of using a 12% (rather than 8%) running gel.

Techniques:

Journal: Journal of immunology (Baltimore, Md. : 1950)

Article Title: Suppression of ongoing experimental autoimmune encephalomyelitis by neutralizing the function of the p28 subunit of IL-27.

doi: 10.4049/jimmunol.173.10.6465

Figure Lengend Snippet: FIGURE 5. Protective administration of anti-IL-27 Abs decreases in vivo polarization of CD4 T cells into Th1 and suppresses IFN- production by Ag-specific T cells. C57BL/6 mice (three per group) were subjected to active induction of EAE and then to repeated administration (days 12, 14, and 16) of anti-IL-27 p28 Abs (100 g), PBS, or normal rat IgG. On day 17 cervical lymph node cells (that drain the autoimmune site) were subjected to intracellular staining of IL-4 and IFN-. A, FACS analysis of CD4 T cells in this experiment. This experiment represents results obtained in three different independent experiments with very similar data. Subsequently, cervical lymph node T cells from these mice were cultured in the presence of 100 M MOGp35–55. After 72 h of stimulation, supernatants were assayed for the protein level of IFN- (B) and IL-4 (not shown). This experiment represents results obtained in three different independent experiments with very similar data.

Article Snippet: Our recombinant mouse IL-27 p28, produced as described above, and commercially available recombinant mouse IL-18, IL-12, and TNF- (R&D Systems) were each subjected to Western blot analysis according to the protocol described in detail previously (29, 32), with the minor modification of using a 12% (rather than 8%) running gel.

Techniques: In Vivo, Staining, Cell Culture

Journal: Journal of immunology (Baltimore, Md. : 1950)

Article Title: Suppression of ongoing experimental autoimmune encephalomyelitis by neutralizing the function of the p28 subunit of IL-27.

doi: 10.4049/jimmunol.173.10.6465

Figure Lengend Snippet: FIGURE 6. Neutralizing the function of IL-27 reduces IFN- produc- tion by IFN--producing T cells. A, C57BL/6 mice (three per group) were subjected to active induction of EAE and then to repeated administration (days 3 and 6) of 100 g of anti-IL-27 p28 Abs (group 3), PBS (group 2), or normal rat IgG (group 1). On day 9, spleen cells were subjected to spot ELISA as previously described (38). A, Relative number of positive spots per 107 cultured cells. The average size of positive spots was analyzed. B, The MOGp33–55-specific CD4 T cell line was cultured with or without 100 M MOGp33–55. Cultured cells were supplemented with anti-IL-27 Abs at a final concentration of 10 g/ml (), normal rat IgG (f), or PBS (E). After 60 h of incubation, cells were plates in spot ELISA plates for an additional 24 h for the detection of IFN--positive spots (38). Number of positive spots (y-axis) and spot sizes (x-axis; logarithmic scale) determined as previously described (46).

Article Snippet: Our recombinant mouse IL-27 p28, produced as described above, and commercially available recombinant mouse IL-18, IL-12, and TNF- (R&D Systems) were each subjected to Western blot analysis according to the protocol described in detail previously (29, 32), with the minor modification of using a 12% (rather than 8%) running gel.

Techniques: Enzyme-linked Immunosorbent Assay, Cell Culture, Concentration Assay, Incubation

Journal: iScience

Article Title: Interferon-γ and IL-27 positively regulate type 1 regulatory T cell development during adaptive tolerance

doi: 10.1016/j.isci.2025.112308

Figure Lengend Snippet:

Article Snippet: Mouse Anti-Mouse IL-27 p28 (clone MM27.7B1) , BioXCell , Cat #BE0326; RRID:AB_2819053.

Techniques: Recombinant, Saline, Staining, Red Blood Cell Lysis, Sequencing, Software

Journal: Journal of immunology (Baltimore, Md. : 1950)

Article Title: Role of IL-6-IL-27 Complex in Host Antiviral Immune Response.

doi: 10.4049/jimmunol.2100179

Figure Lengend Snippet: FIGURE 1. Interactions between the subunits of IL-6 and IL-27 in vivo and in vitro. (AC) CoIP and immunoblotting of serum samples were performed with the indicated Abs. IL-6 interacted with IL-27A (A), IL-6 interacted with EBi3 (B), and IL-27A interacted with EBi3 (C). (DG) HEK293T cells were transfected with the indicated plasmids for 24 h. CoIP and immunoblotting were performed with the indicated Abs. IL-6-3HA interacted with IL-27A-V5 (D), IL-6-3HA interacted with EBi3-Myc (E), IL-27A-V5 interacted with EBi3-Myc (F), and IL-6-3HA interacted with IL-27-V5 (G). (H) Colocalization of IL-6 and IL-27 was detected by confocal microscopy. A549 cells were transfected with IL-6-eGFP-KDEL and IL-27-DsRed-KDEL for 24 h, and the nuclei were stained with DAPI before observation using confocal microscopy. All experiments were repeated at least three times with consistent results.

Article Snippet: Abs against V5 tag (66007-1-Ig), EBi3 (12371-1-AP), myxovirus resistance A (MxA; 13750-1-AP), MAVS (14341-1-AP), TGFb-activated kinase 1 (12330-2-AP), IRF3 (11312-1-AP), NF-kB p65 (10745- 1-AP), NF-kB p50 (14220-1-AP), Lamin A/C (10298-1-AP), GAPDH (60004-1-Ig), and b-actin (60008-1-Ig) were purchased from ProteinTech Group (Wuhan, China).

Techniques: In Vivo, In Vitro, Western Blot, Transfection, Confocal Microscopy, Staining

Journal: Journal of immunology (Baltimore, Md. : 1950)

Article Title: Role of IL-6-IL-27 Complex in Host Antiviral Immune Response.

doi: 10.4049/jimmunol.2100179

Figure Lengend Snippet: FIGURE 2. Construction of the IL-6IL-27 complex and its antiviral activity. (A) A schematic of the IL-6IL-27 construction via flexible self-cleaved linker is shown. Immunoblotting analysis of IL-6, EBi3, IL-27A, and b-actin of HEK293T cells transfected with empty vector pcDNA3.1(1) or IL-6IL-27 complex expression plasmids for 24 h. (B) A549 cells were transfected with indicated plasmids for 24 h followed by H1N1 infection (MOI = 1) for 12 h. The NP-specific mRNA, cRNA, and vRNA levels were measured using QRT-PCR. (C) RD cells were transfected with the indicated plasmids for 24 h fol- lowed by EV71 infection (MOI = 1) for 24 h. The VP1 mRNA levels were measured using QRT-PCR. (D) Vero cells were (Figure legend continues)

Article Snippet: Abs against V5 tag (66007-1-Ig), EBi3 (12371-1-AP), myxovirus resistance A (MxA; 13750-1-AP), MAVS (14341-1-AP), TGFb-activated kinase 1 (12330-2-AP), IRF3 (11312-1-AP), NF-kB p65 (10745- 1-AP), NF-kB p50 (14220-1-AP), Lamin A/C (10298-1-AP), GAPDH (60004-1-Ig), and b-actin (60008-1-Ig) were purchased from ProteinTech Group (Wuhan, China).

Techniques: Activity Assay, Western Blot, Transfection, Plasmid Preparation, Expressing, Infection, Quantitative RT-PCR

Journal: Journal of immunology (Baltimore, Md. : 1950)

Article Title: Role of IL-6-IL-27 Complex in Host Antiviral Immune Response.

doi: 10.4049/jimmunol.2100179

Figure Lengend Snippet: FIGURE 5. The IL-6IL-27 complex interacts with MAVS. (AC) A549 cells were transfected with increasing amounts of the indicated expression plas- mids (wedge; 100, 200, and 300 ng) of the IL-6IL-27 complex expression plasmid and luciferase reporter plasmids containing the IFN-b (A), NF-kB (B), and ISRE (C) promoter for 24 h followed by VSV infection (MOI = 1) for 24 h. Reporter assays were performed. pRL-TK was used as an internal control. (DI) HEK293T cells were transfected with the indicated plasmids for 24 h. CoIP and immunoblotting were performed with the indicated Abs. IL-6-3HA interacted with Flag-MAVS (D), IL-27A-V5 interacted with Flag-MAVS (E), EBi3-Myc interacted with Flag-MAVS (F), IL-6-HA interacted with Flag- TBK1 (G), IL-27A-V5 interacted with Flag-TBK1 (H), and EBi3-Myc interacted with Flag-TBK1 (I). All experiments were repeated at least three times with consistent results.

Article Snippet: Abs against V5 tag (66007-1-Ig), EBi3 (12371-1-AP), myxovirus resistance A (MxA; 13750-1-AP), MAVS (14341-1-AP), TGFb-activated kinase 1 (12330-2-AP), IRF3 (11312-1-AP), NF-kB p65 (10745- 1-AP), NF-kB p50 (14220-1-AP), Lamin A/C (10298-1-AP), GAPDH (60004-1-Ig), and b-actin (60008-1-Ig) were purchased from ProteinTech Group (Wuhan, China).

Techniques: Transfection, Expressing, Plasmid Preparation, Luciferase, Infection, Control, Western Blot