Archaeosomes as novel antigen delivery systems1
Bibliographic record
Abstract
The humoral immune response mounted in BALB/c mice against bovine serum albumin or cholera toxin B subunit was compared when the antigens were associated with liposomes composed of either archaeal ether lipids or conventional lipids. Antibody titres in sera from mice immunised intraperitoneally were elevated to an extent comparable to those achieved with Freund's adjuvant by encapsulating bovine serum albumin in archaeal lipid vesicles (archaeosomes) of about 200 nm diameter. Comparison among six archaeosome and three conventional liposome compositions established that archaeosomes were generally much superior in potentiating an immune response. Further, only two immunisations, at the most, were needed to achieve close to the maximum antibody titre, as shown with archaeosomes composed of the polar lipids from Methanobrevibacter smithii, an inhabitant of the human colon. A similar positive response to presenting the more immunogenic cholera B subunit protein to the immune system of mice was shown for M. smithii archaeosomes. Encapsulation of the antigen in the archaeosome was necessary to achieve the full humoral response. This represents the first study to our knowledge where archaeosomes have been evaluated in vivo as possible antigen carriers.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".