Doxorubicin

[10] Common side effects include hair loss, bone marrow suppression, vomiting, rash, and inflammation of the mouth.

[2] Doxorubicin is commonly used to treat some leukemias and lymphomas, as well as cancers of the bladder, breast, stomach, lung, ovaries, thyroid, soft tissue sarcoma as well as aggressive fibromatosis (desmoid tumor), multiple myeloma, and others.

[19] There are several ways in which doxorubicin is believed to cause cardiomyopathy, including oxidative stress due to iron accumulation, downregulation of genes for contractile proteins, and p53-mediated apoptosis.

[23] Additionally, some people may develop palmar plantar erythrodysesthesia (PPE), characterized by skin eruptions on the palms of the hand or soles of the feet, swelling, pain, and erythema.

There is a pegylated (polyethylene glycol coated) liposome-encapsulated form of doxorubicin, developed to treat Kaposi's sarcoma.

However, this also results in a side effect called palmar plantar erythrodysesthesia (PPE), more commonly known as hand-foot syndrome.

Following administration of this form of doxorubicin, small amounts of the drug can leak from capillaries in the palms of the hands and soles of the feet.

The minimization of this side effect may allow for one-for-one (1:1) substitution with doxorubicin in the same treatment regimen, thereby improving safety with no loss of efficacy.

Published phase II study results have shown that Myocet, trastuzumab, and paclitaxel can safely be used concurrently without the cardiac risk, as measured by reduction in LVEF function, while still achieving superior tumor response.

Daunorubicin is more abundantly found as a natural product because it is produced by a number of different wild type strains of Streptomyces.

In contrast, only one known non-wild type species, Streptomyces peucetius subspecies cesius ATCC 27952, was initially found to be capable of producing the more widely used doxorubicin.

[33] Subsequently, Hutchinson's group showed that under special environmental conditions, or by the introduction of genetic modifications, other strains of Streptomyces can produce doxorubicin.

In 1996, Strohl's group discovered, isolated and characterized dox A, the gene encoding the enzyme that converts daunorubicin into DXR.

Although DXR can be produced semi-synthetically from daunorubicin, the process involves electrophilic bromination and multiple steps, and the yield is poor.

A new strain of Streptomyces peucetius, which produced a red pigment, was isolated, and an antibiotic from this bacterium was effective against tumors in mice.

[3][53] On 21 July 2022, the CHMP adopted a positive opinion, recommending the granting of a marketing authorization for the medicinal product Celdoxome pegylated liposomal, intended for the treatment of metastatic breast cancer, advanced ovarian cancer, progressive multiple myeloma and AIDS-related Kaposi's sarcoma.

[9] Doxorubicin is photosensitive, and containers are often covered by an aluminum bag and/or brown wax paper to prevent light from affecting it.

[56] Combination therapy experiments with sirolimus (rapamycin) and doxorubicin have shown promise in treating Akt-positive lymphomas in mice.

[57] Further, the release of photo-activated adriamycin with the aid of nanoporous optical antenna resulted in significant anti-cancer effect in MCF-7 breast cancer cells.

[58] In 2006, animal research coupling a murine monoclonal antibody with doxorubicin created an immunoconjugate that was able to eliminate HIV-1 infection in mice.

In 2009, a compound similar in structure to doxorubicin was found to inhibit plasmepsin II, an enzyme unique to the malarial parasite Plasmodium falciparum.

[61] The pharmaceutical company GlaxoSmithKline (GSK) later identified doxorubicin in a set of compounds that inhibit parasite growth.

However, there are significant limitations, as doxorubicin's fluorescence spectrum is known to depend on a variety of factors, including the pH of the environment, solvent dielectric constant and others.

Diagram of two doxorubicin molecules intercalating DNA, from PDB : 1D12 ​. [ 39 ]
Bacteria producing doxorubicin were originally discovered in soil near Castel del Monte, Apulia .