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ECHA InfoCard | 100.017.731 |
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Formula | C20H14NO4 |
Molar mass | 332.09 g·mol−1 |
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Sanguinarine is a polycyclic quaternary alkaloid. It is extracted from some plants, including the bloodroot plant, from whose scientific name, Sanguinaria canadensis, its name is derived; the Mexican prickly poppy ( Argemone mexicana ); [1] Chelidonium majus; and Macleaya cordata.
Sanguinarine is a toxin that kills animal cells through its action on the Na+/K+-ATPase transmembrane protein. [2] Epidemic dropsy is a disease that results from ingesting sanguinarine. [3]
If applied to the skin, sanguinarine may cause a massive scab of dead flesh where it killed the cells where it was applied, called an eschar . For this reason, sanguinarine is termed an escharotic. [4]
It is said to be 2.5 times more toxic than dihydrosanguinarine.
Native Americans once used sanguinarine in the form of bloodroot as a medical remedy, believing it had curative properties as an emetic, respiratory aid, and for a variety of ailments. [5] In Colonial America, sanguinarine from bloodroot was used as a wart remedy. Later, in 1869, William Cook's The Physiomedical Dispensatory included information on the preparation and uses of sanguinarine. [6] During the 1920s and 1930s, sanguinarine was the chief component of "Pinkard's Sanguinaria Compound," a drug sold by Dr. John Henry Pinkard. Pinkard advertised the compound as "a treatment, remedy, and cure for pneumonia, coughs, weak lungs, asthma, kidney, liver, bladder, or any stomach troubles, and effective as a great blood and nerve tonic." In 1931, several samples of the compound were seized by federal officials who determined Pinkard's claims to be fraudulent. Pinkard pleaded guilty in court and accepted a fine of $25.00. [7]
More recently, sanguinarine from bloodroot has been promoted by many alternative medicine companies as a treatment or cure for cancer; however, the U.S. Food and Drug Administration warns that products containing bloodroot, or other sanguinarine-based plants, have no proven anti-cancer effects, and that they should be avoided on those grounds. [8] Meanwhile, Australian Therapeutic Goods Administration also advise consumers not to purchase or use products marketed as containing Sanguinaria canadensis to cure or treat cancer, including certain types of skin cancer. [9] Indeed, oral use of such products has been associated with oral leukoplakia, a possible precursor of oral cancer. [10] In addition, the escharotic form of sanguinarine, applied to the skin for skin cancers, may leave cancerous cells alive in the skin while creating a significant scar. For this reason it is not recommended as a skin cancer treatment. [11] [12]
In plants, sanguinarine biosynthesis begins with 4-hydroxyphenyl-acetaldehyde and dopamine. These two compounds are combined to form norcoclaurine. Next, methyl groups are added to form N-methylcoclaurine. The enzyme CYP80B1 subsequently adds a hydroxyl group, forming 3'-hydroxy-N-methylcoclaurine. The addition of another methyl group transforms this compound into reticuline.
Notably, biosynthesis of sanguinarine up to this point is virtually identical to that of morphine. However, instead of being converted to codeinone (as in the biosynthesis of morphine), reticuline is converted to scoulerine via berberine bridge enzyme (BBE). As such, this is the commitment step in the sanguinarine pathway. [13] Although it is unknown exactly how scoulerine proceeds down the biosynthetic pathway, it is eventually converted to dihydrosanguinarine. The precursor to sanguinarine, dihydrosanguinarine is converted to the final toxin via the action of dihydrobenzophenanthridine oxidase. [14]
Alkaloids are a class of basic, naturally occurring organic compounds that contain at least one nitrogen atom. This group also includes some related compounds with neutral and even weakly acidic properties. Some synthetic compounds of similar structure may also be termed alkaloids. In addition to carbon, hydrogen and nitrogen, alkaloids may also contain oxygen or sulfur. More rarely still, they may contain elements such as phosphorus, chlorine, and bromine.
Skin cancers are cancers that arise from the skin. They are due to the development of abnormal cells that have the ability to invade or spread to other parts of the body. There are three main types of skin cancers: basal-cell skin cancer (BCC), squamous-cell skin cancer (SCC) and melanoma. The first two, along with a number of less common skin cancers, are known as nonmelanoma skin cancer (NMSC). Basal-cell cancer grows slowly and can damage the tissue around it but is unlikely to spread to distant areas or result in death. It often appears as a painless raised area of skin that may be shiny with small blood vessels running over it or may present as a raised area with an ulcer. Squamous-cell skin cancer is more likely to spread. It usually presents as a hard lump with a scaly top but may also form an ulcer. Melanomas are the most aggressive. Signs include a mole that has changed in size, shape, color, has irregular edges, has more than one color, is itchy or bleeds.
An eschar is a slough or piece of dead tissue that is cast off from the surface of the skin, particularly after a burn injury, but also seen in gangrene, ulcer, fungal infections, necrotizing spider bite wounds, tick bites associated with spotted fevers and exposure to cutaneous anthrax. The term ‘eschar’ is not interchangeable with ‘scab’. An eschar contains necrotic tissue whereas a scab is composed of dried blood and exudate.
Chelidonium majus, the greater celandine, is a perennial herbaceous flowering plant in the poppy family Papaveraceae. One of two species in the genus Chelidonium, it is native to Europe and western Asia and introduced widely in North America.
Sanguinaria canadensis, bloodroot, is a perennial, herbaceous flowering plant native to eastern North America. It is the only species in the genus Sanguinaria, included in the poppy family Papaveraceae, and is most closely related to Eomecon of eastern Asia.
Argemone mexicana is a species of poppy found in Mexico and now widely naturalized in many parts of the world. An extremely hardy pioneer plant, it is tolerant of drought and poor soil, often being the only cover on new road cuttings or verges. It has bright yellow latex. It is poisonous to grazing animals, and it is rarely eaten, but it has been used medicinally by many peoples, including those in its native area, as well as the Natives of the western US, parts of Mexico and many parts of India. In India, during the colorful festival Holika Dahan, adults and children worship by offering flowers, and this species is in its maximum flowering phase during March when the Holi festival is celebrated. It is also referred to as "kateli ka phool" in India.
Epidemic dropsy is a form of edema of extremities due to poisoning by Argemone mexicana.
Dihydrobenzophenanthridine oxidase is an enzyme. In the IUBMB Enzyme Nomenclature, dihydrobenzophenanthridine oxidase is EC 1.5.3.12.
Mohs surgery, developed in 1938 by a general surgeon, Frederic E. Mohs, is microscopically controlled surgery used to treat both common and rare types of skin cancer. During the surgery, after each removal of tissue and while the patient waits, the tissue is examined for cancer cells. That examination dictates the decision for additional tissue removal. Mohs surgery is the gold standard method for obtaining complete margin control during removal of a skin cancer using frozen section histology. CCPDMA or Mohs surgery allows for the removal of a skin cancer with very narrow surgical margin and a high cure rate.
Phellodendron amurense is a species of tree in the family Rutaceae, commonly called the Amur cork tree. It is a major source of huáng bò, one of the 50 fundamental herbs used in traditional Chinese medicine. The Ainu people used this plant, called shikerebe-ni, as a painkiller. It is known as hwangbyeok in Korean and (キハダ) kihada in Japanese.
Scoulerine, also known as discretamine and aequaline, is a benzylisoquinoline alkaloid (BIA) that is derived directly from (S)-reticuline through the action of berberine bridge enzyme. It is a precursor of other BIAs, notably berberine, noscapine, (S)-tetrahydropalmatine, and (S)-stylopine, as well as the alkaloids protopine, and sanguinarine. It is found in many plants, including opium poppy, Croton flavens, and certain plants in the genus Erythrina.
Berberine is a quaternary ammonium salt from the protoberberine group of benzylisoquinoline alkaloids
In enzymology, a reticuline oxidase (EC 1.21.3.3) is an enzyme that catalyzes the chemical reaction
(S)-Canadine, also known as (S)-tetrahydroberberine and xanthopuccine, is a benzylisoquinoline alkaloid (BIA), of the protoberberine structural subgroup, and is present in many plants from the family Papaveraceae, such as Corydalis yanhusuo and C. turtschaninovii.
Black salve, also known by the brand name Cansema, is an ineffective and unsafe alternative cancer treatment. The product is commonly classified as an escharotic—a topical paste which destroys skin tissue and leaves behind a scar called an eschar. Escharotics were widely used to treat skin lesions in the early 1900s, but have since been replaced by safer and more effective treatments. Escharotics, such as black salves, are currently advertised by some alternative medicine marketers as treatments for skin cancer, often with unsubstantiated testimonials and unsupported claims of effectiveness.
Skin cancer, or neoplasia, is the most common type of cancer diagnosed in horses, accounting for 45 to 80% of all cancers diagnosed. Sarcoids are the most common type of skin neoplasm and are the most common type of cancer overall in horses. Squamous-cell carcinoma is the second-most prevalent skin cancer, followed by melanoma. Squamous-cell carcinoma and melanoma usually occur in horses greater than 9-years-old, while sarcoids commonly affect horses 3 to 6 years old. Surgical biopsy is the method of choice for diagnosis of most equine skin cancers, but is contraindicated for cases of sarcoids. Prognosis and treatment effectiveness varies based on type of cancer, degree of local tissue destruction, evidence of spread to other organs (metastasis) and location of the tumor. Not all cancers metastasize and some can be cured or mitigated by surgical removal of the cancerous tissue or through use of chemotherapeutic drugs.
(S)-Cheilanthifoline is a benzylisoquinoline alkaloid (BIA) which has been isolated from Corydalis dubia and Argemone mexicana. (S)-Cheilanthifoline is metabolically derived from (S)-reticuline, a pivotal intermediate in the biosynthesis of numerous BIAs. (S)-Cheilanthifoline is the immediate precursor of the BIA (S)-stylopine ((S)-stylopine synthase/CYP719A20), which is the precursor for the alkaloids protopine and sanguinarine.
Neoplasene is an herbal veterinary medicine derived from certain chemicals, such as sanguinarine, extracted from the perennial herb Sanguinaria canadensis. It is used to treat cancer in pet animals, especially dogs. Its effectiveness is unproven and there are serious adverse effects.
John Henry Pinkard was a businessman, banker, and herb doctor in Roanoke, Virginia. He was also known as a spiritualist and clairvoyant. Other people considered him a practitioner of quackery and a charlatan.
Berberine bridge enzyme-like form a subgroup of the superfamily of FAD-linked oxidases, structurally characterized by a typical fold observed initially for vanillyl-alcohol oxidase (VAO). This proteins are part of a multigene family (PF08031) that can be found in plants, fungi and bacteria.