Corticosteroid

Last updated
Corticosteroid
Drug class
Cortisol3.svg
Cortisol (hydrocortisone), a corticosteroid with both glucocorticoid and mineralocorticoid activity and effects.
Class identifiers
Synonyms Corticoid
UseVarious
ATC code H02
Biological target Glucocorticoid receptor, Mineralocorticoid receptor
Chemical class Steroids
Legal status
In Wikidata

Corticosteroids are a class of steroid hormones that are produced in the adrenal cortex of vertebrates, as well as the synthetic analogues of these hormones. Two main classes of corticosteroids, glucocorticoids and mineralocorticoids, are involved in a wide range of physiological processes, including stress response, immune response, and regulation of inflammation, carbohydrate metabolism, protein catabolism, blood electrolyte levels, and behavior. [1]

Contents

Some common naturally occurring steroid hormones are cortisol (C
21H
30O
5), corticosterone (C
21H
30O
4), cortisone (C
21H
28O
5) and aldosterone (C
21H
28O
5) (cortisone and aldosterone are isomers). The main corticosteroids produced by the adrenal cortex are cortisol and aldosterone. [1]

Classes

Cortisol Cortisol3.svg
Cortisol
Cortisone Cortison.svg
Cortisone
Corticosterone Corticosterone-2D-skeletal.svg
Corticosterone
Aldosterone Aldosterone-2D-skeletal.svg
Aldosterone

Medical uses

Synthetic pharmaceutical drugs with corticosteroid-like effects are used in a variety of conditions, ranging from hematological neoplasms [3] to brain tumors or skin diseases. Dexamethasone and its derivatives are almost pure glucocorticoids, while prednisone and its derivatives have some mineralocorticoid action in addition to the glucocorticoid effect. Fludrocortisone (Florinef) is a synthetic mineralocorticoid. Hydrocortisone (cortisol) is typically used for replacement therapy, e.g. for adrenal insufficiency and congenital adrenal hyperplasia.

Medical conditions treated with systemic corticosteroids: [2] [4]

Topical formulations are also available for the skin, eyes (uveitis), lungs (asthma), nose (rhinitis), and bowels. Corticosteroids are also used supportively to prevent nausea, often in combination with 5-HT3 antagonists (e.g., ondansetron).

Typical undesired effects of glucocorticoids present quite uniformly as drug-induced Cushing's syndrome. Typical mineralocorticoid side-effects are hypertension (abnormally high blood pressure), steroid induced diabetes mellitus, psychosis, poor sleep, hypokalemia (low potassium levels in the blood), hypernatremia (high sodium levels in the blood) without causing peripheral edema, metabolic alkalosis and connective tissue weakness. [5] Wound healing or ulcer formation may be inhibited by the immunosuppressive effects.

A variety of steroid medications, from anti-allergy nasal sprays (Nasonex, Flonase) to topical skin creams, to eye drops (Tobradex), to prednisone have been implicated in the development of central serous retinopathy (CSR). [6] [7]

Corticosteroids have been widely used in treating people with traumatic brain injury. [8] A systematic review identified 20 randomised controlled trials and included 12,303 participants, then compared patients who received corticosteroids with patients who received no treatment. The authors recommended people with traumatic head injury should not be routinely treated with corticosteroids. [9]

Pharmacology

Corticosteroids act as agonists of the glucocorticoid receptor and/or the mineralocorticoid receptor.

In addition to their corticosteroid activity, some corticosteroids may have some progestogenic activity and may produce sex-related side effects. [10] [11] [12] [13]

Pharmacogenetics

Asthma

Patients' response to inhaled corticosteroids has some basis in genetic variations. Two genes of interest are CHRH1 (corticotropin-releasing hormone receptor 1) and TBX21 (transcription factor T-bet). Both genes display some degree of polymorphic variation in humans, which may explain how some patients respond better to inhaled corticosteroid therapy than others. [14] [15] However, not all asthma patients respond to corticosteroids and large sub groups of asthma patients are corticosteroid resistant. [16]

A study funded by the Patient-Centered Outcomes Research Institute of children and teens with mild persistent asthma found that using the control inhaler as needed worked the same as daily use in improving asthma control, number of asthma flares, how well the lungs work, and quality of life. Children and teens using the inhaler as needed used about one-fourth the amount of corticosteroid medicine as children and teens using it daily. [17] [18]

Adverse effects

Lower arm of a 47-year-old female showing skin damage caused by topical corticosteroid use. Results of topical steroid damage on skin of a 47 year old female.png
Lower arm of a 47-year-old female showing skin damage caused by topical corticosteroid use.

Use of corticosteroids has numerous side-effects, some of which may be severe:

Biosynthesis

Steroidogenesis, including corticosteroid biosynthesis. Steroidogenesis.png
Steroidogenesis, including corticosteroid biosynthesis.

The corticosteroids are synthesized from cholesterol within the adrenal cortex. [1] Most steroidogenic reactions are catalysed by enzymes of the cytochrome P450 family. They are located within the mitochondria and require adrenodoxin as a cofactor (except 21-hydroxylase and 17α-hydroxylase).

Aldosterone and corticosterone share the first part of their biosynthetic pathway. The last part is mediated either by the aldosterone synthase (for aldosterone) or by the 11β-hydroxylase (for corticosterone). These enzymes are nearly identical (they share 11β-hydroxylation and 18-hydroxylation functions), but aldosterone synthase is also able to perform an 18-oxidation. Moreover, aldosterone synthase is found within the zona glomerulosa at the outer edge of the adrenal cortex; 11β-hydroxylase is found in the zona fasciculata and zona glomerulosa.

Classification of corticosteroids

By chemical structure

In general, corticosteroids are grouped into four classes, based on chemical structure. Allergic reactions to one member of a class typically indicate an intolerance of all members of the class. This is known as the "Coopman classification". [42] [43]

The highlighted steroids are often used in the screening of allergies to topical steroids. [44]

Group A – Hydrocortisone type

Hydrocortisone, hydrocortisone acetate, cortisone acetate, tixocortol pivalate, prednisolone, methylprednisolone, and prednisone.

Amcinonide, budesonide, desonide, fluocinolone acetonide, fluocinonide, halcinonide, triamcinolone acetonide, and Deflazacort (O-isopropylidene derivative)

Group C – Betamethasone type

Beclometasone, betamethasone, dexamethasone, fluocortolone, halometasone, and mometasone.

Group D – Esters

Group D1 – Halogenated (less labile)

Alclometasone dipropionate, betamethasone dipropionate, betamethasone valerate, clobetasol propionate, clobetasone butyrate, fluprednidene acetate, and mometasone furoate.

Group D2 – Labile prodrug esters

Ciclesonide, cortisone acetate, hydrocortisone aceponate, hydrocortisone acetate, hydrocortisone buteprate, hydrocortisone butyrate, hydrocortisone valerate, prednicarbate, and tixocortol pivalate.

By route of administration

Topical steroids

For use topically on the skin, eye, and mucous membranes.

Topical corticosteroids are divided in potency classes I to IV in most countries (A to D in Japan). Seven categories are used in the United States to determine the level of potency of any given topical corticosteroid.

Inhaled steroids

For nasal mucosa, sinuses, bronchi, and lungs. [45]

This group includes:

There also exist certain combination preparations such as Advair Diskus in the United States, containing fluticasone propionate and salmeterol (a long-acting bronchodilator), and Symbicort, containing budesonide and formoterol fumarate dihydrate (another long-acting bronchodilator). [46] They are both approved for use in children over 12 years old.

Oral forms

Such as prednisone, prednisolone, methylprednisolone, or dexamethasone. [47]

Systemic forms

Available in injectables for intravenous and parenteral routes. [47]

History

Introduction of early corticosteroids [48] [49] [50]
CorticosteroidIntroduced
Cortisone 1948
Hydrocortisone 1951
Fludrocortisone acetate 1954 [51]
Prednisolone 1955
Prednisone 1955 [52]
Methylprednisolone 1956
Triamcinolone 1956
Dexamethasone 1958
Betamethasone 1958
Triamcinolone acetonide 1958
Fluorometholone 1959
Deflazacort 1969 [53]

Tadeusz Reichstein, Edward Calvin Kendall, and Philip Showalter Hench were awarded the Nobel Prize for Physiology and Medicine in 1950 for their work on hormones of the adrenal cortex, which culminated in the isolation of cortisone. [54]

Initially hailed as a miracle cure and liberally prescribed during the 1950s, steroid treatment brought about adverse events of such a magnitude that the next major category of anti-inflammatory drugs, the nonsteroidal anti-inflammatory drugs (NSAIDs), was so named in order to demarcate from the opprobrium. [55] Corticosteroids were voted Allergen of the Year in 2005 by the American Contact Dermatitis Society. [56]

Lewis Sarett of Merck & Co. was the first to synthesize cortisone, using a 36-step process that started with deoxycholic acid, which was extracted from ox bile. [57] The low efficiency of converting deoxycholic acid into cortisone led to a cost of US$200 per gram in 1947. Russell Marker, at Syntex, discovered a much cheaper and more convenient starting material, diosgenin from wild Mexican yams. His conversion of diosgenin into progesterone by a four-step process now known as Marker degradation was an important step in mass production of all steroidal hormones, including cortisone and chemicals used in hormonal contraception. [58]

In 1952, D.H. Peterson and H.C. Murray of Upjohn developed a process that used Rhizopus mold to oxidize progesterone into a compound that was readily converted to cortisone. [59] The ability to cheaply synthesize large quantities of cortisone from the diosgenin in yams resulted in a rapid drop in price to US$6 per gram[ when? ], falling to $0.46 per gram by 1980. Percy Julian's research also aided progress in the field. [60] The exact nature of cortisone's anti-inflammatory action remained a mystery for years after, however, until the leukocyte adhesion cascade and the role of phospholipase A2 in the production of prostaglandins and leukotrienes was fully understood in the early 1980s.

Etymology

The cortico- part of the name refers to the adrenal cortex, which makes these steroid hormones. Thus a corticosteroid is a "cortex steroid".

See also

Related Research Articles

<span class="mw-page-title-main">Adrenal gland</span> Endocrine gland

The adrenal glands are endocrine glands that produce a variety of hormones including adrenaline and the steroids aldosterone and cortisol. They are found above the kidneys. Each gland has an outer cortex which produces steroid hormones and an inner medulla. The adrenal cortex itself is divided into three main zones: the zona glomerulosa, the zona fasciculata and the zona reticularis.

<span class="mw-page-title-main">Cortisone</span> Corticosteroid precursor and metabolite of cortisol

Cortisone is a pregnene (21-carbon) steroid hormone. It is a naturally-occurring corticosteroid metabolite that is also used as a pharmaceutical prodrug. Cortisol is converted by the action of the enzyme corticosteroid 11-beta-dehydrogenase isozyme 2 into the inactive metabolite cortisone, particularly in the kidneys. This is done by oxidizing the alcohol group at carbon 11. Cortisone is converted back to the active steroid cortisol by stereospecific hydrogenation at carbon 11 by the enzyme 11β-Hydroxysteroid dehydrogenase type 1, particularly in the liver.

<span class="mw-page-title-main">Cortisol</span> Human natural glucocorticoid hormone

Cortisol is a steroid hormone, in the glucocorticoid class of hormones and a stress hormone. When used as a medication, it is known as hydrocortisone.

<span class="mw-page-title-main">Prednisone</span> Steroid medication

Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases. It is also used to treat high blood calcium due to cancer and adrenal insufficiency along with other steroids. It is taken by mouth.

<span class="mw-page-title-main">Hydrocortisone</span> Glucocorticoid and Mineralocorticoid hormone Cortisol supplied as a medication

Hydrocortisone is the name for the hormone cortisol when supplied as a medication. Uses include conditions such as adrenocortical insufficiency, adrenogenital syndrome, high blood calcium, thyroiditis, rheumatoid arthritis, dermatitis, asthma, and COPD. It is the treatment of choice for adrenocortical insufficiency. It can be given by mouth, topically, or by injection. Stopping treatment after long-term use should be done slowly.

<span class="mw-page-title-main">Glucocorticoid</span> Class of corticosteroids

Glucocorticoids are a class of corticosteroids, which are a class of steroid hormones. Glucocorticoids are corticosteroids that bind to the glucocorticoid receptor that is present in almost every vertebrate animal cell. The name "glucocorticoid" is a portmanteau and is composed from its role in regulation of glucose metabolism, synthesis in the adrenal cortex, and its steroidal structure.

<span class="mw-page-title-main">Adrenal insufficiency</span> Medical condition

Adrenal insufficiency is a condition in which the adrenal glands do not produce adequate amounts of steroid hormones. The adrenal glands—also referred to as the adrenal cortex—normally secrete glucocorticoids, mineralocorticoids, and androgens. These hormones are important in regulating blood pressure, electrolytes, and metabolism as a whole. Deficiency of these hormones leads to symptoms ranging from abdominal pain, vomiting, muscle weakness and fatigue, low blood pressure, depression, mood and personality changes to organ failure and shock. Adrenal crisis may occur if a person having adrenal insufficiency experiences stresses, such as an accident, injury, surgery, or severe infection; this is a life-threatening medical condition resulting from severe deficiency of cortisol in the body. Death may quickly follow.

<span class="mw-page-title-main">Prednisolone</span> Chemical compound (steroid medication)

Prednisolone is a corticosteroid, a steroid hormone used to treat certain types of allergies, inflammatory conditions, autoimmune disorders, and cancers. Some of these conditions include adrenocortical insufficiency, high blood calcium, rheumatoid arthritis, dermatitis, eye inflammation, asthma, and multiple sclerosis. It can be taken by mouth, injected into a vein, used topically as a skin cream, or as eye drops. It differs from the similarly named prednisone in having a hydroxyl at the 11th carbon instead of a ketone.

<span class="mw-page-title-main">Fludrocortisone</span> Mineralocorticoid Hormone used as a Medicine

Fludrocortisone, sold under the brand name Florinef, among others, is a corticosteroid used to treat adrenogenital syndrome, postural hypotension, and adrenal insufficiency. In adrenal insufficiency, it is generally taken together with hydrocortisone. Fludrocortisone is taken by mouth and is most commonly used in its acetate form.

<span class="mw-page-title-main">Triamcinolone</span> Steroid medication

Triamcinolone is a glucocorticoid used to treat certain skin diseases, allergies, and rheumatic disorders among others. It is also used to prevent worsening of asthma and COPD. It can be taken in various ways including by mouth, injection into a muscle, and inhalation.

<span class="mw-page-title-main">Methylprednisolone</span> Corticosteroid medication

Methylprednisolone is a synthetic glucocorticoid, primarily prescribed for its anti-inflammatory and immunosuppressive effects. It is either used at low doses for chronic illnesses or used concomitantly at high doses during acute flares. Methylprednisolone and its derivatives can be administered orally or parenterally.

11β-Hydroxysteroid dehydrogenase enzymes catalyze the conversion of inert 11 keto-products (cortisone) to active cortisol, or vice versa, thus regulating the access of glucocorticoids to the steroid receptors.

<span class="mw-page-title-main">Mometasone</span> Steroid medication

Mometasone, also known as mometasone y 3 s, is a steroid medication used to treat certain skin conditions, hay fever, and asthma. Specifically it is used to prevent rather than treat asthma attacks. It can be applied to the skin, inhaled, or used in the nose. Mometasone furoate, not mometasone, is used in medical products.

<span class="mw-page-title-main">Loteprednol</span> Pharmaceutical drug

Loteprednol is a topical corticosteroid used to treat inflammations of the eye. It is marketed by Bausch and Lomb as Lotemax and Loterex.

<span class="mw-page-title-main">11-Deoxycortisol</span> Chemical compound

11-Deoxycortisol, also known as cortodoxone (INN), cortexolone as well as 17α,21-dihydroxyprogesterone or 17α,21-dihydroxypregn-4-ene-3,20-dione, is an endogenous glucocorticoid steroid hormone, and a metabolic intermediate toward cortisol. It was first described by Tadeusz Reichstein in 1938 as Substance S, thus has also been referred to as Reichstein's Substance S or Compound S.

<span class="mw-page-title-main">Adrenal crisis</span> Medical condition

Adrenal crisis, also known as Addisonian crisis or acute adrenal insufficiency, is a serious, life-threatening complication of adrenal insufficiency. Hypotension, or hypovolemic shock, is the main symptom of adrenal crisis. Other symptoms include weakness, anorexia, nausea, vomiting, fever, fatigue, abnormal electrolytes, confusion, and coma. Laboratory testing may detect lymphocytosis, eosinophilia, hyponatremia, hyperkalemia, hypoglycemia, and occasionally, hypercalcemia.

Topical steroids are the topical forms of corticosteroids. Topical steroids are the most commonly prescribed topical medications for the treatment of rash and eczema. Topical steroids have anti-inflammatory properties and are classified based on their skin vasoconstrictive abilities. There are numerous topical steroid products. All the preparations in each class have the same anti-inflammatory properties but essentially differ in base and price.

<span class="mw-page-title-main">Budesonide</span> Type of corticosteroid medication; group of stereoisomers

Budesonide, sold under the brand name Pulmicort among others, is a medication of the corticosteroid type. It is available as an inhaler, nebulization solution, pill, nasal spray, and rectal forms. The inhaled form is used in the long-term management of asthma and chronic obstructive pulmonary disease (COPD). The nasal spray is used for allergic rhinitis and nasal polyps. The pills in a delayed release form and rectal forms may be used for inflammatory bowel disease including Crohn's disease, ulcerative colitis, and microscopic colitis.

<span class="mw-page-title-main">Topical glucocorticoids</span>

Topical glucocorticoids are the topical forms of glucocorticoids. Topical glucocorticoids are used in the treatment of many skin conditions. They provide anti-inflammatory, antimitotic, and immune-system suppressing actions through various mechanisms.

<span class="mw-page-title-main">Topical hydrocortisone</span> Pharmaceutical drug

Topical hydrocortisone is a drug under the class of corticosteroids, which is used for the treatment of skin inflammation, itchiness and allergies. Some examples include insect bites, dermatitis and rash.

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