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Platins
Platinum-based antineoplastic drugs (informally called platins) are chemotherapeutic agents used to treat cancer. They are coordination complexes of platinum. These drugs are used to treat almost half of people receiving chemotherapy for cancer. In this form of chemotherapy, commonly used drugs include cisplatin, oxaliplatin, and carboplatin, but several have been proposed or are under development. Addition of platinum-based chemotherapy drugs to chemoradiation in women with early cervical cancer seems to improve survival and reduce risk of recurrence. In total, these drugs can cause a combination of more than 40 specific side effects which include neurotoxicity, which is manifested by peripheral neuropathies including polyneuropathy. Mechanism of action As studied mainly on cisplatin, but presumably for other members as well, platinum-based antineoplastic agents cause crosslinking of DNA as monoadduct, interstrand crosslinks, intrastrand crosslinks or DNA protein crosslinks. Most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pharmaceutical Drug
A medication (also called medicament, medicine, pharmaceutical drug, medicinal drug or simply drug) is a drug used to diagnose, cure, treat, or prevent disease. Drug therapy (pharmacotherapy) is an important part of the medical field and relies on the science of pharmacology for continual advancement and on pharmacy for appropriate management. Drugs are classified in multiple ways. One of the key divisions is by level of control, which distinguishes prescription drugs (those that a pharmacist dispenses only on the order of a physician, physician assistant, or qualified nurse) from over-the-counter drugs (those that consumers can order for themselves). Another key distinction is between traditional small molecule drugs, usually derived from chemical synthesis, and biopharmaceuticals, which include recombinant proteins, vaccines, blood products used therapeutically (such as IVIG), gene therapy, monoclonal antibodies and cell therapy (for instance, stem cell therapies) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alkyl
In organic chemistry, an alkyl group is an alkane missing one hydrogen. The term ''alkyl'' is intentionally unspecific to include many possible substitutions. An acyclic alkyl has the general formula of . A cycloalkyl is derived from a cycloalkane by removal of a hydrogen atom from a Ring (chemistry), ring and has the general formula . Typically an alkyl is a part of a larger molecule. In structural formulae, the symbol R is used to designate a generic (unspecified) alkyl group. The smallest alkyl group is methyl, with the formula . Related concepts Alkylation is an important operation in refineries, for example in the production of high-octane gasoline. Alkylating antineoplastic agents are a class of compounds that are used to treat cancer. In such case, the term alkyl is used loosely. For example, nitrogen mustards are well-known alkylating agents, but they are not simple hydrocarbons. In chemistry, alkyl is a group, a substituent, that is attached to other molecular fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medicinal Inorganic Chemistry
Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care practices evolved to maintain and restore health by the prevention and treatment of illness. Contemporary medicine applies biomedical sciences, biomedical research, genetics, and medical technology to diagnose, treat, and prevent injury and disease, typically through pharmaceuticals or surgery, but also through therapies as diverse as psychotherapy, external splints and traction, medical devices, biologics, and ionizing radiation, amongst others. Medicine has been practiced since prehistoric times, and for most of this time it was an art (an area of skill and knowledge), frequently having connections to the religious and philosophical beliefs of local culture. For example, a medicine man would apply herbs and say prayers for healing, or an anci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satraplatin
Satraplatin (INN, codenamed JM216) is a platinum-based antineoplastic agent that was under investigation as a treatment of patients with advanced prostate cancer who have failed previous chemotherapy. It has not yet received approval from the U.S. Food and Drug Administration. First mentioned in the medical literature in 1993, satraplatin is the first orally active platinum-based chemotherapeutic drug; other available platinum analogues—cisplatin, carboplatin, and oxaliplatin—must be given intravenously. The drug has also been used in the treatment of lung and ovarian cancers. The proposed mode of action is that the compound binds to the DNA of cancer cells rendering them incapable of dividing. Mode of action The proposed mode of action is that the compound binds to the DNA of cancer cells rendering them incapable of dividing. In addition also some cisplatin resistant tumour cell lines were sensitive to satraplatin treatment in vitro. This may be due to an altered me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picoplatin
Picoplatin is a platinum-based antineoplastic agent in clinical development by Poniard Pharmaceuticals (previously NeoRx) for the treatment of patients with solid tumors. In Phase I and Phase II clinical trials, picoplatin demonstrated activity in a variety of solid tumors, including lung, ovarian, colorectal and hormone-refractory prostate cancer. However, in Phase III trials, picoplatin failed to hit its primary endpoint for advanced small cell lung cancer. Hopes are now pinned on its use for metastatic colorectal cancer Colorectal cancer (CRC), also known as bowel cancer, colon cancer, or rectal cancer, is the development of cancer from the colon or rectum (parts of the large intestine). Signs and symptoms may include blood in the stool, a change in bowel m ....http://www.genengnews.com/specialreports/sritem.aspx?oid=69418732 Nov 2009 References Platinum(II) compounds Organochlorides Pyridines Platinum-based antineoplastic agents {{antineoplastic-drug-s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phenanthriplatin
Phenanthriplatin or ''cis''- t(NH3)2-(phenanthridine)ClO3 is a new drug candidate. It belongs to a family of platinum(II)-based agents which includes cisplatin, oxaliplatin and carboplatin. Phenanthriplatin was discovered by Professor Stephen J. Lippard at Massachusetts Institute of Technology and is currently being developed by Blend Therapeutics for its potential use in human cancer therapy. Structure and synthesis Structurally, phenanthriplatin is similar to cisplatin, differing only in the presence of a phenanthridine ligand instead of a chloride in its structure. To synthesise phenanthriplatin, one equivalent of silver nitrate is added to a solution of cisplatin in dimethylformamide. The mixture is stirred at 55 °C away from light and the resulting silver chloride precipitate is filtered out. Next, phenanthridine is added to the supernatant and this is also mixed at 55 °C for 16 hours. The reaction mixture is then rotary evaporated to dryness and the residue i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triplatin Tetranitrate
Triplatin tetranitrate (rINN; also known as BBR3464) is a platinum-based cytotoxic drug that underwent clinical trials for the treatment of human cancer. The drug acts by forming adducts with cellular DNA, preventing DNA transcription and replication, thereby inducing apoptosis. Other platinum-containing anticancer drugs include cisplatin, carboplatin Carboplatin, sold under the trade name Paraplatin among others, is a chemotherapy medication used to treat a number of forms of cancer. This includes ovarian cancer, lung cancer, head and neck cancer, brain cancer, and neuroblastoma. It is used b ..., and oxaliplatin. Drug development Triplatin belongs to the anticancer class of polynuclear platinum complexes (PPCs), developed in the laboratory of Professor Nicholas Farrell, where one or more platinum centers are linked by amine ligands. BBR3464 was patented in the mid-1990s and clinical development and licensing was performed initially by Boehringer Mannheim Italia and event ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nedaplatin
Nedaplatin (INN, marketed under the tradename Aqupla) is a platinum-based antineoplastic drug which is used for cancer chemotherapy. The complex consists of two ammine ligands and the dianion derived from glycolic acid. Platinum-based drugs are widely employed as antineoplastic agents, especially cisplatin and carboplatin. Due to issues of their toxicity and number of cisplatin-resistant cancer cell Cancer cells are cells that divide continually, forming solid tumors or flooding the blood with abnormal cells. Cell division is a normal process used by the body for growth and repair. A parent cell divides to form two daughter cells, and these d ...s, other platinum derivatives have been developed. Nedaplatin is one example of such new drugs. References External links * * Platinum(II) compounds Platinum-based antineoplastic agents Ammine complexes {{antineoplastic-drug-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medulloblastoma
Medulloblastoma is a common type of primary brain cancer in children. It originates in the part of the brain that is towards the back and the bottom, on the floor of the skull, in the cerebellum, or posterior fossa. The brain is divided into two main parts, the larger cerebrum on top and the smaller cerebellum below towards the back. They are separated by a membrane called the tentorium. Tumors that originate in the cerebellum or the surrounding region below the tentorium are, therefore, called infratentorial. Historically medulloblastomas have been classified as a primitive neuroectodermal tumor (PNET), but it is now known that medulloblastoma is distinct from supratentorial PNETs and they are no longer considered similar entities. Medulloblastomas are invasive, rapidly growing tumors that, unlike most brain tumors, spread through the cerebrospinal fluid and frequently metastasize to different locations along the surface of the brain and spinal cord. Metastasis all the way dow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Testicular Cancer
Testicular cancer is cancer that develops in the testicles, a part of the male reproductive system. Symptoms may include a lump in the testicle, or swelling or pain in the scrotum. Treatment may result in infertility. Risk factors include an undescended testis, family history of the disease, and previous history of testicular cancer. More than 95% are germ cell tumors which are divided into seminomas and nonseminomas. Other types include sex-cord stromal tumors and lymphomas. Diagnosis is typically based on a physical exam, ultrasound, and blood tests. Surgical removal of the testicle with examination under a microscope is then done to determine the type. Testicular cancer is highly treatable and usually curable. Treatment options may include surgery, radiation therapy, chemotherapy, or stem cell transplantation. Even in cases in which cancer has spread widely, chemotherapy offers a cure rate greater than 80%. Globally testicular cancer affected about 686,000 people in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cisplatin
Cisplatin is a chemotherapy medication used to treat a number of cancers. These include testicular cancer, ovarian cancer, cervical cancer, breast cancer, bladder cancer, head and neck cancer, esophageal cancer, lung cancer, mesothelioma, brain tumors and neuroblastoma. It is given by injection into a vein. Common side effects include bone marrow suppression, hearing problems, including total irreversible hearing loss, usually restricted to one ear, kidney damage, and vomiting. Other serious side effects include numbness, trouble walking, allergic reactions, electrolyte problems, and heart disease. Use during pregnancy can cause harm to the developing fetus. Cisplatin is in the platinum-based antineoplastic family of medications. It works in part by binding to DNA and inhibiting its replication. Cisplatin was discovered in 1845 and licensed for medical use in 1978 and 1979. It is on the World Health Organization's List of Essential Medicines. Medical use Cisplatin is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
