Acemannan

Aloe-derived immune polysaccharide that activates macrophages/DCs/T/NK; possible chemo-adjunct signal in one human study.

← All agents

Human-reviewed · How we review →

AI extractedhuman reviewedsources checkedretractions suppressed

🔬⭐⭐⭐ Moderate — Multiple preclinical studies plus one human trial.Aloe vera polysaccharideβ-(1→4)-acetylated mannanAloe mucopolysaccharide

Forms: Purified acemannan (standardized polysaccharide) · Aloe gel/juice (variable acemannan content) · Aloe arborescens extract/syrup (as used with chemo in human study)

Educational only, not medical advice. OncoForge makes no claim that Acemannan treats, prevents, or cures any condition, beyond what the linked studies show. Evidence levels vary; effects may not translate to people, and some compounds can cause harm. Always coordinate with your oncology team.

Simple Summary

Acemannan is a compound found in aloe vera that boosts your immune system’s cancer-fighting activity. It helps the body recognize tumors and slows their growth. One human study even showed better outcomes when acemannan was used with chemo.

Evidence at a glance

Tier 3 · early humanVarious solid tumors (adjunct with chemotherapy)

Multiple preclinical studies plus one human trial (Aloe extract with chemo); purified acemannan dosing and standalone efficacy in humans are not established.

How it may work

Acemannan stimulates macrophages, dendritic cells, and T-cells to release IL-1, IL-6, TNF-α, and IFN-γ, enhancing the immune system’s ability to recognize and attack tumors. It also promotes antigen presentation and slows tumor proliferation, migration, and stemness in vitro. In combination with chemotherapy, it may enhance tumor regression and improve survival.

Targets & pathways

Curated mechanistic targets reported for this agent — how it may act on cells, not proof of a clinical effect.

Immune↑Innate + adaptive activation
Macrophage activation↑Dectin/TLR signaling → TNF-α/IL-1β
Dendritic cell activation↑Antigen presentation ↑ (MHC-II, co-stim)
T-cell activation (Th1)↑IFN-γ ↑; cytotoxic priming
NK cytotoxicity↑
Cytokines↑IL-1, IL-6, TNF-α, IFN-γ
Tumor proliferation↓Proliferation/migration/stemness ↓ (preclinical)

Immune ↑Macrophage Activator

Often studied / combined with

Combinations reported in the literature, not a protocol or a recommendation.

Chemotherapy: Human study signal when co-administered; immune priming may support response.
Turkey Tail (PSK/PSP): Complementary β-glucan–like innate immune activation.

Overlapping mechanisms

Immune ↑, Macrophage Activator: Avoid stacking multiple strong immune stimulants in patients with autoimmune risk.

Safety & interactions

Severity and how well-established each signal is are shown separately. Verify everything with your oncologist or pharmacist — absence here does not mean safe.

Risk categories

Diarrhea RiskHypoglycemia Risk MildImmunostimulant Autoimmune CautionPregnancy Avoid

Potential interactions

immunosuppressantsMonitorModerateTheoreticalImmune-stimulating effects may oppose corticosteroids/other immunosuppressants.
antidiabeticsDose AdjustMildTheoreticalPotential additive glucose-lowering → monitor and adjust therapy if needed.
chemotherapy (general)MonitorTheoreticalHuman study used concomitant administration with chemo; coordinate timing per regimen.

Timing

With-meal: Improves GI tolerance.
AM
PM

References

Research

No published studies for Acemannan yet

New studies appear here once they’ve been reviewed. Browse all studies.

Dose: as studied, not a recommendation

These are doses as studied or reported, never a recommendation. The right amount of Acemannan depends on you, your other medicines, and your situation; decide it with your oncology team and pharmacist, not from a web page.

Ranges seen in adjunct / practice use: (oral) Standardized acemannan (product-dependent); consider divided dosing with meals, Human oncology dosing not standardized. One study used Aloe arborescens extract 10 mL TID alongside chemotherapy (not purified acemannan). Actual acemannan content varies widely by product..

Trials studying Acemannan

No actively-recruiting trials matched right now. Recruiting is not the same as proven. Search ClinicalTrials.gov →

Inclusion here is not an endorsement. OncoForge makes no claim beyond what the linked studies show. Discuss anything on this page with your oncology team before acting on it.

← All agents · Research Radar