While c-Myc overexpression occurs in a large percentage of tumours, it may have an especially important role in RCC due to the intrinsic hypoxic microenvironment that is characteristic of this tumour type (Tang et al, 2009).
Hypoxia in the microenvironment is a characteristic of malignant tumors.
Constitutive production of TNF- α from the tumour microenvironment is a characteristic of many malignant tumours and its presence is often associated with poor prognosis.
Acidic extracellular pH is characteristic of the cell microenvironment in several important physiological and pathological contexts.
This pathway includes the IL-2RA (CD25) receptor gene, expressed on the surface of a subset of regulatory T cells (Tregs) that contribute to immunosuppression that is characteristic of the glioblastoma microenvironment (35– 45).
According to Miller [ 35], the fluorescence of HSA with a Δ λ (Δ λ = λem − λex) of 60 nm is characteristic of the alteration of the polarity of the microenvironment surrounding Trp-214 residues.
Moreover, it is evident that an inflammatory microenvironment is an important characteristic of human tumours.
Factors such as tumor architecture, interactions among cancer cells and between cancer and stromal cells, and an acidic tumor microenvironment are critical characteristics observed in patient-derived cancer xenograft models and in the clinic.
Cellular adaptation to hypoxic microenvironments is a characteristic of many solid cancers [54].
