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To analyze putative biomarkers for prostate cancer (PCA) characterization, the second leading cause of cancer-associated mortality in men. Quantification of the expression level of
c-myc
and
HIF-1α
was performed in 72 prostate cancer specimens. A cohort of 497 prostate cancer patients from The Cancer Genome Atlas (TCGA) database was further analyzed, in order to test our hypothesis. We found that high
c-myc
level was significantly associated with
HIF-1α
elevated expression (
p
= 0.008) in our 72 samples. Statistical analysis of 497 TCGA prostate cancer specimens confirmed the strong association (
p
= 0.0005) of
c-myc
and
HIF-1α
expression levels, as we found in our series. Moreover, we found high
c-myc
levels significantly associated with low Glutatione S-transferase P1 (GSTP1) expression (
p
= 0.01), with high Transketolase (TKT) expression (
p
< 0.0001). High TKT levels were found in TCGA samples with low GSTP1 mRNA (p < 0.0001), as shown for
c-myc
, and with ERG increased expression (
p
= 0.02). Finally, samples with low
GSTP1
expression displayed higher
ERG
mRNA levels than samples with high
GSTP1
score (
p
< 0.0001), as above shown for
c-myc
. Our study emphasizes the notion of a potential value of
HIF-1α
and
c-myc
as putative biomarkers in prostate cancer; moreover TCGA data analysis showed a putative crosstalk between c-myc, HIF-1α, ERG, TKT, and GSTP1, suggesting a potential use of this axis in prostate cancer.