Furthermore, regularly scheduled ERG follow-up examinations are recommended for monitoring patients' progression during treatment.
This was supported by epitope analyses of longitudinal samples from LADA patients during progression to insulin requirement.
As proof of principle, Meng and coworkers [ 7] were able to use this approach to reveal modest HER2 gene amplification acquired by some HER2-negative patients during progression on chemotherapy, with subsequent responses to herceptin-containing therapy.
The inclusion criteria were: a verified histology of NSCLC, advanced NSCLC defined as stage IIIA-IV according to TNM and a minimum of three serum samples donated from each patient during progression of the disease.
Among them, eight patients acquired mutations of other genes, including RUNX1 in four (patients 22, 51, 83 and 108; Table 3), NRAS in three (patients 26, 56 and 80), KRAS in one (patient 35), SF3B1 in one (patient 22) and SETBP1 in one (patient 108) during disease progression, whereas other six patients had chromosomal evolution (patients 5, 24, 38, 71, 98 and 100).
Interestingly, we also observed an increase in the migration and invasion properties in the same patient (patient 17) during the progression of the disease.
This is particular true in the neurology field, where few techniques are amenable to study the affected tissue of the patient during illness progression, in addition to the lack of neuroprotective therapies for many diseases.
Any patient exhibiting progression during the 24-month study was withdrawn and offered standard treatment.
Since patient-derived cells optimally replicate tumor growth, survival and chemoresistance mechanisms acquired in patients during disease progression, their use in drug discovery may lead to novel cancer therapeutics that target advanced stages of breast cancer.
Gorry, who continues to collaborate with Gray, writes that "Lachlan became expert at molecular and functional analysis of HIV-1 envelope glycoproteins, and he showed how these glycoproteins evolve in viruses isolated from patients during disease progression, and also within the brain".
The high level of expression of T cell activation markers detected in HIV-infected patients during disease progression, together with the fact that expression of such markers is not altered in natural resistant hosts of HIV/SIV, has attracted attention by the scientific community [3], [10], [12], [13], [20], [48], [49].
