Кристаген
Crystagen bioregulator peptide (Khavinson school). Limited CyberLeninka record; full source PDFs preserved in the dossier.
1 · Identity
- Identity
- sequence-only / literature
2 · Mechanism — what the primary literature actually shows
Synthetic peptide from the Khavinson school, related to thymus biology. Mechanism: in peripheral blood mononuclear cells from healthy donors, crystagen INCREASES IL-18 production (Maksimenia 2016 — direct comparison with vilon, epithalon, endoluten, vladonix, cortexin). Crystagen belongs to the immunogeroprotective peptide family — Khavinson-school peptides that reduce apoptosis in spleen cells during ageing (Chervjakova-Pronjaeva-Kostylev-Trofimova 2013) and modulate macrophage subpopulations in ageing immune system (Dudkov-Pronjaeva-Chervjakova-Trofimova 2013). The T-38 peptide (which crystagen is closely related to) reduces spleen apoptosis. Proliferotropic effect on spleen + thyroid explants (Chalikova-Nikitina-Ryzhak-Ivanova-Egozova 2025): Lys-Asp-Glu-Gly, Glu-Asp-Pro, Glu-Asp-Arg, Lys-Glu-Asp all statistically significantly stimulate proliferation.
How it works
Key findings (5)
- Human peripheral blood mononuclear cells: crystagen increases IL-18 production; vladonix and endoluten also increase IL-18; vilon accelerates TNF-α; endoluten increases IL-4; vilon/vladonix/epithalon reduce IL-1 RA (Maksimenia-Fefelova-Bykova 2016)
- Adjacent: immunomodulating peptides reduce spleen cell apoptosis during ageing (Chervjakova 2013); regulate macrophage subpopulations in ageing immune system (Dudkov 2013)
- Adjacent: peptides Lys-Asp-Glu-Gly, Glu-Asp-Pro, Glu-Asp-Arg, Lys-Glu-Asp stimulate proliferation in spleen + thyroid explants (Chalikova 2025)
- Applied context: Gazprom Urengoy workers — molecular-genetic testing followed by peptide bioregulation reduced morbidity in Far North climate (Trofimova 2016)
- Sport context: bioregulating correction of adaptation reserves in elite gymnasts using short peptides (Viner-Terekhina-Trofimova-Trofimov 2012)
Evidence quality
Low-moderate. The cytokine production study (Maksimenia) is one of the cleanest direct mechanistic findings for a Khavinson tetrapeptide — shows class-level immune effects with distinct peptide-specific cytokine signatures. Most other "crystagen" papers are from the same Khavinson school but treat multiple peptides in parallel.
Open questions (3)
- IL-18 upregulation is the strongest direct mechanism — what is the receptor and signaling cascade?
- Why are peptide-specific cytokine signatures so distinct? (vilon→TNFα, endoluten→IL-4, crystagen→IL-18)
- Clinical translation beyond the Far North worker cohort
3 · Summary
Design distribution
| Design | Count | Distribution |
|---|
4 · Possible mechanisms — candidate list
5 · Pathways — questions the corpus does not yet answer
6 · Bibliography — Russian primary sources
- vliyanie-prirodnyh-i-sinteticheskih-peptidov-na-produktsiyu-tsitokinov-kletkami-perifericheskoy-krovi
- immunomoduliruyuschie-peptidy-snizhayut-uroven-apoptoza-v-kletkah-selezenki-pri-ee-starenii
- peptidergicheskaya-regulyatsiya-chislennosti-subpopulyatsii-makrofagov-pri-starenii-immunnoy-sistemy
- personifitsirovannaya-profilaktika-zabolevaemosti-v-usloviyah-kraynego-severa
- proliferotropnoe-vliyanie-peptidov-na-organy-immunnoy-sistemy-krys
- otsenka-i-bioreguliruyuschaya-korrektsiya-rezervov-adaptatsii-gimnastok-k-fizicheski-nagruzkam
- lekarstvennye-peptidnye-preparaty-proshloe-nastoyaschee-buduschee
- sovremennaya-pischevaya-biotehnologiya-osnovnye-problemy-i-vyzovy
- bioantioksidanty-chast-2
Inventor (detail): V.Kh. Khavinson + N.S. Linkova lab
First publication: 2010s
Peptide kind: Synthetic short peptide (Cytomed R&D)
Below: substantive excerpts from 4 Russian primary papers. Click each title to expand the Russian/English abstract.
4/6 papers with substantive abstracts · 4,105 characters of Russian/English pharmacological text extracted · 4 Russian abstracts · 3 English abstracts · 6/6 relevance-classified.
Extracted findings (1 models · 9 mechanism terms · direction: ↑3 ↓3 ↺1 across 4 papers)
- Model organisms
- —
- Doses / concentrations
- —
- Mechanism terms
- апоптоза, иммунной системы, кортексина, пролиферацией, пролиферации, пролиферацию, селезенка, селезенки
- Effect direction
- 3× increase · 3× decrease · 1× restoration/normalisation
[2016] ВЛИЯНИЕ ПРИРОДНЫХ И СИНТЕТИЧЕСКИХ ПЕПТИДОВ НА ПРОДУКЦИЮ ЦИТОКИНОВ КЛЕТКАМИ ПЕРИФЕРИЧЕСКОЙ КРОВИ
[2016] ПЕРСОНИФИЦИРОВАННАЯ ПРОФИЛАКТИКА ЗАБОЛЕВАЕМОСТИ В УСЛОВИЯХ КРАЙНЕГО СЕВЕРА
[2025] Пролиферотропное влияние пептидов на органы иммунной системы крыс
[2012] Оценка и биорегулирующая коррекция резервов адаптации гимнасток к физически нагрузкам
7 · Bibliography — PubMed corpus
| PMID | Year | Design | n | Grade | COI | Title |
|---|
8 · Corroboration
- Corpus source
- PubMed (eutils) and OpenAlex, swept against this compound by PMID. Last verified 26.08.2026.
- Identity source
- PubChem CID — verified live. InChIKey —. Live fetch on 26.08.2026.
- Provenance
- Saint Petersburg Institute of Bioregulation and Gerontology (2010) V.Kh. Khavinson — Cytomed peptide bioregulator
9 · Open questions
- Zero A- or B-grade evidence in the corpus. No registered RCT with disclosed n.