It may alternatively be given on an inpatient basis over 1–3 days, similar to and often including the delivery of chemotherapy.Intralesional IL-2 is commonly used to treat in-transit melanoma metastases and has a high complete response rate. Local application
In preclinical and early clinical studies, local application of IL-2 in the tumor has been shown to be clinical more effective in anticancer therapy than systemic IL-2 therapy, over a broad range of doses, without serious side effects.Tumour blood vessels are more vulnerable than normal blood vessels to the actions of IL-2. When injected inside a tumor, i.e. local application, a process mechanistically similar to the vascular leakage syndrome, occurs in tumor tissue only. Disruption of the blood flow inside of the tumor effectively destroys tumor tissue.In local application, the systemic dose of IL-2 is too low to cause side effects, since the total dose is about 100 to 1000 fold lower. Clinical studies showed painful injections at the site of radiation as the most important side effect, reported by patients. In the case of irradiation of nasopharyngeal carcinoma the five-year disease-free survival increased from 8% to 63% by local IL-2 therapy

Toxicity
Systemic IL-2 has a narrow therapeutic window, and the level of dosing usually determines the severity of the side effects.
Organ-limited amyloidosis is a category of amyloidosis where the distribution can be associated primarily with a single organ. It is contrasted to systemic amyloidosis, and it can be caused by several different types of amyloid.In almost all of the organ-specific pathologies, there is debate as to whether the amyloid plaques are the causal agent of the disease or instead a downstream consequence of a common idiopathic agent. The associated proteins are indicated in parentheses. Neurological amyloid
Alzheimers disease (Aβ 39-43)
Parkinsons disease (alpha-synuclein)
Huntingtons disease (huntingtin protein)
Transmissible spongiform encephalopathies caused by prion protein (PrP) were sometimes classed as amyloidoses, as one of the four pathological features in diseased tissue is the presence of amyloid plaques. These diseases include;
Creutzfeldt–Jakob disease (PrP in cerebrum)
Kuru (diffuse PrP deposits in brain)
Fatal familial insomnia (PrP in thalamus)
Bovine spongiform encephalopathy (PrP in cerebrum of cows)

Cardiovascular amyloid
Cardiac amyloidosis
Senile cardiac amyloidosis-may cause heart failure

Other
Amylin deposition can occur in the pancreas in some cases of type 2 diabetes mellitus
Cerebral amyloid angiopathy

References


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