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7 protocols using cdhybridoma media

1

Chimeric Immunogen Antibody Generation

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Example 7

A synthetic gene coding for the chimeric immunogen hSortilin-FC, (human Sortilin AA (78-756) from SEQ ID NO:169) and human IgG1-FC AA (104-330) from SEQ ID NO:169 was cloned into pcDNA3.1 and used for expression using the freestyle system from Invitrogen. The antigen was purified from cell culture supernatants by protein-A affinity chromatography using standard procedures for antibody purification as described above for human antibodies.

Hybridoma Generation

hSortilin-FC was used as immunogen and 5 BALB/c mice were immunized. A mouse with satisfactory immune response was selected for cell fusion and hybridoma generation. Hybridoma supernatants were screened by ELISA using hSortilin-ECD as coating antigen. A total of eighteen hybridoma cell lines derived from nine parental clones were generated.

Expression

Hybridomas were initially grown in complete growth medium, DMEM with 10% FBS+ antibiotics, and subsequently adapted to CDhybridoma media (Invitrogen) for expression experiments.

Purification

Mouse monoclonal antibodies were purified from hybridoma cell culture supernatants by protein-G sepharose according to standard procedures recommended by the supplier (GE healthcare).

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2

Chimeric hSortilin-FC Immunogen and Antibody Generation

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Example 7

A synthetic gene coding for the chimeric immunogen hSortilin-FC, (human Sortilin AA (78-756) from SEQ ID NO:169) and human IgG1-FC AA (104-330) from SEQ ID NO:169 was cloned into pcDNA3.1 and used for expression using the freestyle system from Invitrogen. The antigen was purified from cell culture supernatants by protein-A affinity chromatography using standard procedures for antibody purification as described above for human antibodies.

Hybridoma Generation

hSortilin-FC was used as immunogen and 5 BALB/c mice were immunized. A mouse with satisfactory immune response was selected for cell fusion and hybridoma generation. Hybridoma supernatants were screened by ELISA using hSortilin-ECD as coating antigen. A total of eighteen hybridoma cell lines derived from nine parental clones were generated.

Expression

Hybridomas were initially grown in complete growth medium, DMEM with 10% FBS+ antibiotics, and subsequently adapted to CDhybridoma media (Invitrogen) for expression experiments.

Purification

Mouse monoclonal antibodies were purified from hybridoma cell culture supernatants by protein-G sepharose according to standard procedures recommended by the supplier (GE healthcare).

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3

Generation and Purification of Monoclonal Antibodies

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Example 7

Immunogen

A synthetic gene coding for the chimeric immunogen hSortilin-FC, (human Sortilin AA (78-756) from SEQ ID NO:169) and human IgG1-FC AA (104-330) from SEQ ID NO:169 was cloned into pcDNA3.1 and used for expression using the freestyle system from Invitrogen. The antigen was purified from cell culture supernatants by protein-A affinity chromatography using standard procedures for antibody purification as described above for human antibodies.

Hybridoma Generation

hSortilin-FC was used as immunogen and 5 BALB/c mice were immunized. A mouse with satisfactory immune response was selected for cell fusion and hybridoma generation. Hybridoma supernatants were screened by ELISA using hSortilin-ECD as coating antigen. A total of eighteen hybridoma cell lines derived from nine parental clones were generated.

Expression

Hybridomas were initially grown in complete growth medium, DMEM with 10% FBS+antibiotics, and subsequently adapted to CDhybridoma media (Invitrogen) for expression experiments.

Purification

Mouse monoclonal antibodies were purified from hybridoma cell culture supernatants by protein-G sepharose according to standard procedures recommended by the supplier (GE healthcare).

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4

Generation of Anti-Sortilin Monoclonal Antibodies

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Example 7

Immunogen

A synthetic gene coding for the chimeric immunogen hSortilin-FC, (human Sortilin AA (78-756) from SEQ ID NO:169) and human IgG1-FC AA (104-330) from SEQ ID NO:169 was cloned into pcDNA3.1 and used for expression using the freestyle system from Invitrogen. The antigen was purified from cell culture supernatants by protein-A affinity chromatography using standard procedures for antibody purification as described above for human antibodies.

Hybridoma Generation

hSortilin-FC was used as immunogen and 5 BALB/c mice were immunized. A mouse with satisfactory immune response was selected for cell fusion and hybridoma generation. Hybridoma supernatants were screened by ELISA using hSortilin-ECD as coating antigen. A total of eighteen hybridoma cell lines derived from nine parental clones were generated.

Expression

Hybridomas were initially grown in complete growth medium, DMEM with 10% FBS+ antibiotics, and subsequently adapted to CDhybridoma media (Invitrogen) for expression experiments.

Purification

Mouse monoclonal antibodies were purified from hybridoma cell culture supernatants by protein-G sepharose according to standard procedures recommended by the supplier (GE healthcare).

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5

Purification and In Vivo Application of Anti-CD4/CD8 Antibodies

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TIB-207 (anti-CD4) and TIB-105 (anti-CD8) hybridoma cell lines were obtained from ATCC for the collection of T-cell depletion antibodies. CD hybridoma media (Gibco®) supplemented with 4% GlutaMAX™ was used for hybridoma cell culture. Conditioned media from >90% confluent 10 cm plates of hybridoma cells was collected, spun down to remove cell debris, and filtered through a 0.2 μm filter set before purification. The HiTrap Protein G HP column (GE Healthcare Life Sciences) was used to purify antibody using binding buffer (20mM sodium phosphate pH 7.0) elution buffer (0.1 M glycine-HCl pH2.7) and neutralization buffer (1 M Tris-HCl pH 9.0) following the manufacturer’s instructions. Purified antibodies were then concentrated using Amicon ultra-15ml (3K) spin tubes (Millipore) at 4000 rpm for 45 min at 20°C. Concentrated antibody was dialyzed against PBS at 4°C overnight and then antibody concentration was quantified by standard Bradford assay. For in vivo T-cell depletion experiments, animals were injected with either 125 μg/mouse of antibody or same amount of isotype control in PBS by i.p. injection three days prior to tumor cell injection and then every three days post tumor cell injection.
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6

Purification and In Vivo Application of Anti-CD4/CD8 Antibodies

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TIB-207 (anti-CD4) and TIB-105 (anti-CD8) hybridoma cell lines were obtained from ATCC for the collection of T-cell depletion antibodies. CD hybridoma media (Gibco®) supplemented with 4% GlutaMAX™ was used for hybridoma cell culture. Conditioned media from >90% confluent 10 cm plates of hybridoma cells was collected, spun down to remove cell debris, and filtered through a 0.2 μm filter set before purification. The HiTrap Protein G HP column (GE Healthcare Life Sciences) was used to purify antibody using binding buffer (20mM sodium phosphate pH 7.0) elution buffer (0.1 M glycine-HCl pH2.7) and neutralization buffer (1 M Tris-HCl pH 9.0) following the manufacturer’s instructions. Purified antibodies were then concentrated using Amicon ultra-15ml (3K) spin tubes (Millipore) at 4000 rpm for 45 min at 20°C. Concentrated antibody was dialyzed against PBS at 4°C overnight and then antibody concentration was quantified by standard Bradford assay. For in vivo T-cell depletion experiments, animals were injected with either 125 μg/mouse of antibody or same amount of isotype control in PBS by i.p. injection three days prior to tumor cell injection and then every three days post tumor cell injection.
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7

Cell Culture of SH-SY5Y Neurons

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Wild-type SH-SY5Y cells and SH-SY5Y transfected with full-length hTau with a C-terminal GFP tag (Tau-GFP cells) were cultured in Dulbecco’s modified Eagle’s media (Gibco), supplemented with 10% (v/v) foetal calf serum (Gibco) and 1% (v/v) penicillin–streptomycin (Gibco) at 37°C with 5% CO2. Tau-GFP cells were selected with 6-mg/ml blasticidin (Thermo Fisher Scientific). For expression of the RNJ1 IgG, wild-type SH-SY5Y cells were maintained in 90% (v/v) CD Hybridoma Media (Gibco), 10% (v/v) Dulbecco’s modified Eagle’s media (Gibco) and supplemented with 1% (v/v) foetal calf serum and 0.1% (v/v) penicillin–streptomycin.
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