This discovery has led to efficient and scalable production of purified NSC populations through lineage selection, avoiding previous methods that employed high-dose growth factors and mitogens such as retinoic acid (RA) [34].
Furthermore, outcome of growth factor treatment depends on many factors such as chemotherapy drugs used, drug doses, growth-factor derivatives and individual risk factors [ 57, 58].
However, supraphysiological dose of growth factor, such as recombinant human bone morphogenetic protein 2 (rhBMP-2), which is necessary in contemporary clinical application, have been reported to result in severe side effects.
Furthermore, the dose of growth factor to be used needs to be fine-tuned.
An attempt has been made to highlight the effects of the mechanisms that govern the release of incorporated growth factors from the delivery system as this determines the final dose of growth factor released and its impact on tissue regeneration.
Estimated means, s.e.m. and significance levels were calculated with the general linear model multivariate statistical model, considering the number of blood vessels, number of lymph vessels, total blood vessel length and total lymph vessel length as dependent variables, compound dose and/or growth factor overexpressed as fixed factors, and experiment as co-variate.
HER2 is present in normal breast cells, but in about one-fifth of breast cancers, it's present in abnormally high numbers — an indication that these tumors are powered, in part, by high doses of growth factor.
Increased drug doses using growth factor or stem cell support.
Factors previously reported to protect against CIN and FN in any cycle of chemotherapy, such as dose reductions, dose delays, or growth factor use before an event occurred, could not be investigated since the details, reasons, and timing information were not available and only 15 out of 994 patients received primary prophylaxis with GCSF, mainly due to reimbursement criteria.
Neutropaenia, which occurred primarily within the first 30 days of treatment, was generally manageable with prompt dose modification, growth factors, and antibiotics.
