Some embodiments provided herein relate to methods and pharmaceutical compositions comprising recombinant human surfactant protein D or active fragments thereof. Some such embodiments include solutions or suspensions, and lyophilized solid forms of recombinant human surfactant protein D or active fragments thereof.

Some embodiments of the methods and compositions provided herein relate to the preparation surfactant protein-D (SP-D). Some embodiments include the expression of human SP-D in certain cell lines, and the purification of human SP-D from such cell lines. Some embodiments include the preparation of certain oligomeric forms of human SP-D.

Peptides suitable for preparation of lung surfactants are described. Examples include one that include a first fragment comprising the amino acid sequence of XWLXRALIKRIQAZI (SEQ ID NO: 1) or a first amino acid sequence having at least 90% sequence identity to SEQ ID NO: 1 and a second fragment comprising the amino acid sequence of RZLPQLVXRLVLRXS (SEQ ID NO: 2) or a second amino acid sequence having at least 90% sequence identity to SEQ ID NO: 2, wherein X is any amino acid but at least one amino acid at the X positions is not cysteine, or Z is any amino acid but at least one amino acid at the Z positions is not methionine. Surfactants that contain such peptides, and related compositions, methods of preparing and using the compositions are also described.

Peptides suitable for preparation of lung surfactants are described. Examples include one that include a first fragment comprising the amino acid sequence of XWLXRALIKRIQAZI (SEQ ID NO: 1) or a first amino acid sequence having at least 90% sequence identity to SEQ ID NO: 1 and a second fragment comprising the amino acid sequence of RZLPQLVXRLVLRXS (SEQ ID NO: 2) or a second amino acid sequence having at least 90% sequence identity to SEQ ID NO: 2, wherein X is any amino acid but at least one amino acid at the X positions is not cysteine, or Z is any amino acid but at least one amino acid at the Z positions is not methionine. Surfactants that contain such peptides, and related compositions, methods of preparing and using the compositions are also described.

The present invention relates to a novel recombinant nanocage and use thereof wherein the nanocage is formed by self-assembly of a fusion protein including a phagocytosis enhancing protein and a self-assembling protein, and to a protein nanocage complex in which an immunogenic cell death inducer is loaded in the nanocage as an active ingredient.

The present invention relates to a novel recombinant nanocage and use thereof wherein the nanocage is formed by self-assembly of a fusion protein including a phagocytosis enhancing protein and a self-assembling protein, and to a protein nanocage complex in which an immunogenic cell death inducer is loaded in the nanocage as an active ingredient.

Some embodiments of the methods and compositions provided herein include identifying and/or quantifying oligomeric species of surfactant protein-D (SP-D). Some embodiments include performing an asymmetric flow field-flow fractionation with multi-angle laser light scattering (AF4-MALLS) analysis on the SP-D.

The present invention relates to the field of immunogenic compositions and vaccines and the use of such compositions in medicine. More particularly, it relates to immunogenic fragments of UspA2 comprising an epitope and immunogenic compositions and vaccines comprising said fragments, for use in preventing or treating an infection, disease or condition caused by heterologous strain(s) of Moraxella catarrhalis. The invention further relates to immunogenic compositions and vaccines comprising an immunogenic fragment wherein said fragment comprises an epitope with cross-bactericidal activity.

The present invention relates to the field of immunogenic compositions and vaccines and the use of such compositions in medicine. More particularly, it relates to immunogenic fragments of UspA2 comprising an epitope and immunogenic compositions and vaccines comprising said fragments, for use in preventing or treating an infection, disease or condition caused by heterologous strain(s) of Moraxella catarrhalis. The invention further relates to immunogenic compositions and vaccines comprising an immunogenic fragment wherein said fragment comprises an epitope with cross-bactericidal activity.

Some embodiments of the methods and compositions provided herein relate to the preparation surfactant protein-D (SP-D). Some embodiments include the expression of human SP-D in certain cell lines, and the purification of human SP-D from such cell lines. Some embodiments include the preparation of certain oligomeric forms of human SP-D.