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Marine cyanobacteria

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By Targets:	Cathepsin (1) HDAC (1) HSP (1) NO Synthase (1)
By Research Areas:	Cancer (2) Inflammation/Immunology (1) Neurological Disease (1)

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Natural
Products

Art. -Nr.	Produktname	Target	Forschungsgebiete	Chemical Structure

HY-N15154

Tasiamide B	Cathepsin HSP	Cancer
Tasiamide B is a Cathepsin D inhibitor, which is a linear peptide found in the marine cyanobacteria Symploca sp.. Tasiamide B is proved as a good template for the development of aspartic proteases inhibitors. Tasiamide B is effective against skin cancer by strongly interacting with the target protein HSP90 .

HY-13906

Largazole (+)-Largazole	HDAC	Neurological Disease Cancer
Largazole ((+)-Largazole) is a potent, selective, orally active and brain-penetrant class I HDAC inhibitor found in marine cyanobacteria. Largazole shows an IC₅₀ of 0.07 nM for HDAC2. Largazole releases its active form Largazole thiol (HY-170890) after hydrolysis. Largazole has a strong inhibitory effect on SF-268, SF-295 and SH-SY5Y cells, with IC₅₀ values of 62, 68 and 102 nM respectively Largazole can upregulate the tumor suppressor gene Pax6 to inhibit the proliferation, invasion and colony formation of glioblastoma cells. Largazole can significantly upregulated brain-derived neurotrophic factor BDNF, neuronal transcription factor Pax6, and μ-opioid receptor gene Oprm1. Largazole exerts antitumor and neuroprotective effects. Largazole can be used for researches of Glioblastoma and Alzheimer’s disease .

HY-N15571

Hedopeptolide	NO Synthase	Inflammation/Immunology
Hedopeptolide can be found in the marine cyanobacteria Okeania sp. Hedopeptolide inhibits LSP-induced NO production in RAW264.7 cells (IC₅₀: 4 μM). Hedopeptolide exhibits anti-inflammatory activity .

Art. -Nr.	Produktname	Category	Target	Chemical Structure

HY-N15154

Tasiamide B	Natürliche Produkte Marine algae Marine natural products Source Classification	Cathepsin HSP
Tasiamide B is a Cathepsin D inhibitor, which is a linear peptide found in the marine cyanobacteria Symploca sp.. Tasiamide B is proved as a good template for the development of aspartic proteases inhibitors. Tasiamide B is effective against skin cancer by strongly interacting with the target protein HSP90 .

HY-13906

Largazole (+)-Largazole	Structural Classification Natürliche Produkte Microorganisms Source Classification	HDAC
Largazole ((+)-Largazole) is a potent, selective, orally active and brain-penetrant class I HDAC inhibitor found in marine cyanobacteria. Largazole shows an IC₅₀ of 0.07 nM for HDAC2. Largazole releases its active form Largazole thiol (HY-170890) after hydrolysis. Largazole has a strong inhibitory effect on SF-268, SF-295 and SH-SY5Y cells, with IC₅₀ values of 62, 68 and 102 nM respectively Largazole can upregulate the tumor suppressor gene Pax6 to inhibit the proliferation, invasion and colony formation of glioblastoma cells. Largazole can significantly upregulated brain-derived neurotrophic factor BDNF, neuronal transcription factor Pax6, and μ-opioid receptor gene Oprm1. Largazole exerts antitumor and neuroprotective effects. Largazole can be used for researches of Glioblastoma and Alzheimer’s disease .

HY-N15571

Hedopeptolide	Natürliche Produkte Microorganisms Source Classification	NO Synthase
Hedopeptolide can be found in the marine cyanobacteria Okeania sp. Hedopeptolide inhibits LSP-induced NO production in RAW264.7 cells (IC₅₀: 4 μM). Hedopeptolide exhibits anti-inflammatory activity .

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BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature. Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred to a PVDF membrane and blocked with 5% non-fat milk in TBST for 2 hour at room temperature. The primary antibody (1/1000) and Loading control antibody (Beta Actin, HY-P80438, 1/10000) was used in 5% non-fat milk in TBST at 4°C overnight. Goat Anti-Mouse/Rabbit IgG-HRP Secondary Antibody (1/10000) was used for 1 hour at room temperature.

BODIPY 493/503 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2025 Feb 1;16(1):1241. [Abstract]

MedchemExpress Validation 01

MedchemExpress Validation 03

Western blot analysis of extracts from THP-1(lane 2(20μg), Jurkat (lane 3(20μg) and NIH3T3(lane 4(20μg) using FOXO1A (HY-P80132) Rabbit mAb. Proteins were transferred

MedchemExpress Validation 04

MedchemExpress Validation

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Marine cyanobacteria

Inhibitors & Agonists

NaturalProducts

Natural
Products