Inosine

Inosine, an endogenous purine nucleoside, has immunomodulatory, neuroprotective, and analgesic properties. In vitro: Inosine has been shown to stimulate axonal growth in cell culture and promote corticospinal tract axons to sprout collateral branches after stroke, spinal cord injury and TBI in rodent models.[1] Inosine dose-dependently stimulates cAMP production mediated through the A2AR. Inosine dose-dependently induces A2AR-mediated ERK1/2 phosphorylation.[2] In vivo: The reference for Inosine is 1 or 10 mg/kg, i.p. Preventive treatment with inosine inhibits the development and progression of EAE in C57Bl/6 mice. neuroinflammation and demyelinating processes are blocked by inosine treatment. Additionally, inosine consistently inhibits IL-17 levels in peripheral lymphoid tissue, as well as IL-4 levels and A2AR up-regulation in the spinal cord, likely, through an ERK1-independent pathway. [3] inosine acting through adenosine receptors (ARs) exerts a wide range of anti-inflammatory and immunomodulatory effects in vivo. [2]

Natural Products >> Others

Research Areas >> Others

Human Endogenous Metabolite

[1]. Moore TL et al. Inosine enhances recovery of grasp following cortical injury to the primary motor cortex of the rhesus monkey. Restor Neurol Neurosci. 2016 Aug 1.

[2]. Welihinda AA et al. The adenosine metabolite inosine is a functional agonist of the adenosine A2A receptor with a unique signaling bias. Cell Signal. 2016 Jun;28(6):552-60.

[3]. Junqueira SC et al. Inosine, an Endogenous Purine Nucleoside, Suppresses Immune Responses and Protects Mice from Experimental Autoimmune Encephalomyelitis: a Role for A2A Adenosine Receptor. Mol Neurobiol. 2016 Apr 30.

3-Methyladenine | Hydrocortisone | Acetylcysteine(N-acetylcysteine) | Retinoic acid | Melatonine | Dinoprostone | Nicotinamide | Adenosine triphosphate | 4-Acetamidophenol | Prostaglandin E1 | Dehydroepiandrosterone | Corticosterone | Progesterone | Docosahexaenoic Acid | NAD+

MOLECULAR FORMULA :

C10-H12-N4-O5

MOLECULAR WEIGHT :

268.26

WISWESSER LINE NOTATION :

T56 BN DN FN HNJ IQ D- BT5OTJ CQ DQ E1Q

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

>10 gm/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

2900 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intravenous

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

>2 gm/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

>20 gm/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

3175 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Subcutaneous

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

5 gm/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intravenous

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

>2800 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

558 gm/kg/93D-C

TOXIC EFFECTS :

Endocrine - changes in thymus weight Blood - normocytic anemia Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)

MUTATION DATA

TYPE OF TEST :

DNA damage

TEST SYSTEM :

Mammal - species unspecified Lymphocyte

DOSE/DURATION :

60 mmol/L

REFERENCE :

PNASA6 Proceedings of the National Academy of Sciences of the United States of America. (National Academy of Sciences, Printing & Pub. Office, 2101 Constitution Ave., Washington, DC 20418) V.1- 1915- Volume(issue)/page/year: 48,686,1962 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X4726 No. of Facilities: 121 (estimated) No. of Industries: 2 No. of Occupations: 2 No. of Employees: 1253 (estimated) No. of Female Employees: 904 (estimated)