Recently, it has been shown that Hsp90 inhibition indirectly promotes the growth of metastasing prostate carcinoma cells in the bone by primarily affecting the normal tumour-surrounding tissue [ 23].
In other words, the pathogenic genes are more possibly involved in same pathways in which genes work together, and the pathogenesis is possibly regulated by these pathways without affecting the normal processes considering the modularity and robustness of the biological system.
It is worth stressing that all effects may be relevant on different levels, either if ω-3 PUFAs are incorporated by the tumor cells themselves, or also by incorporation into inflammatory/immune cells surrounding the tumors, and influencing the process of tumorigenesis by affecting the normal cells from which tumor cells may originate.
Thus, the genetic background of the host may affect immune responsiveness, not only by affecting the function of normal immune cells but also by directly affecting the biology of cancers cells.
Bmi-1 is also thought to be involved in early stages of breast tumorigenesis by affecting the self-renewal and proliferation of normal mammary stem cells [173].
On the other hand, type II agents alter normal cellular function by affecting the mitochondrial system and reducing protein synthesis, which is reversible once the drug is discontinued.
The neuropeptide PDF mediates normal circadian locomotor rhythms by affecting the synchrony, amplitude and pace of the molecular clocks15,16,18,19 and by coordinating the phase of pacemaker neuron activity20.
This has important practical implications; for example the optimal scheduling of a cataract surgery should be determined by the moment when the visual impairment produced by the cataract affects the normal daily activities [3].
The appearance of the female form was then followed, or perhaps accompanied or even preceded by a recessive mutation that affected the normal pollen development (Sp allele).
Such mechanisms could involve transcription factors that directly repress Ptbx-2:: gfp expression in the syncytial hypodermis, or mechanisms that indirectly affect Ptbx-2:: gfp by affecting normal seam cell or hypodermal differentiation.
