Bladder Cancer refers to any of several types of malignant growths of the urinary bladder. It is a disease in which abnormal cells multiply without control in the bladder. The bladder is a hollow, muscular organ that stores urine; it is located in the pelvis. The most common type of bladder cancer begins in cells lining the inside of the bladder and is called urothelial cell or transitional cell carcinoma (UCC or TCC). Exposure to environmental carcinogens of various types is responsible for the development of most bladder cancers. Tobacco abuse (specifically cigarette smoking) is thought to cause 50% of bladder cancers discovered in male patients and 30% of those found in female patients. Thirty percent of bladder tumors probably result from occupational exposure in the workplace to carcinogens such as benzidine. Approximately 20% of bladder cancers occur in patients without predisposing risk factors. Bladder cancer is not currently believed to be heritable (i.e., does not "run in families" as a consequence of a specific genetic abnormality).
beta-hCG (beta human chorionic gonadotrophin)
for T2-T4 bladder tumours, an elevated
pre-treatment level of urinary beta-hCG is a marker of poor
prognosis and may prove useful in deciding appropriate therapy.
PMID: 8653319
Measurement of serum and/or urine beta HCG
appears to be an efficient diagnostic marker for the presence of
distant metastases in bladder carcinoma.
PMID: 2478247
Beta-2-microglobulin
a
differentiation marker in bladder cancer.
PMID: 3534313
BLCA-1
a urine based marker of bladder cancer which
may be useful for the detection of this disease.
PMID: 15947579
BLCA-4
a bladder cancer specific biomarker, is
present in urine samples from patients with bladder cancer, but
not in samples from healthy individuals.
PMID: 16360453
a bladder cancer marker that is highly
specific and occurs early in the development of the disease.
PMID: 14977841
Urinary BLCA-4 determination appears to have
high potential as a test for screening and monitoring bladder
cancer in the general population and in groups at high risk for
the disease, such as those with spinal cord injury.
PMID: 10953114
BTA (Bladder tumor antigen)
in combination with urine cytology is a more
useful way for diagnosing TCC of the bladder.
PMID: 1891992
CA19-9 (Carbohydrate antigen 19-9)
promising for use as a biomarker for the
detection and monitoring of low-grade and low-stage bladder
cancer, with the proviso that patients to be tested should be
free of infection.
PMID: 15764245
c-erbB-2
the use of c-erbB-2
gene amplification, together with tumor grade and stage, could
provide an accurate basis for determining the prognosis of
bladder cancer.
PMID: 10792078
Clusterin
serum and urine clusterin can differ between
bladder cancer patients and the control group. Urine clusterin
could be the possible laboratory marker of bladder cancer.
PMID: 16830064
CYFRA 21-1
Patients with transitional cell cancer of the
bladder with evidence of distant metastases showed a significant
increase in serum CYFRA 21-1. During chemotherapy CYFRA 21-1
appears to be a potentially sensitive and useful indicator for
monitoring treatment response.
PMID: 16217281
Cytokeratin-18 (CK18)
It is clear that serum cytokeratin-18 level
increases in patients with bladder cancer. However, it can only
be useful as a tumor marker in the diagnosis of T(3) and higher
staged tumors. This study indicated that cytokeratin-18 does not
have any diagnostic value in lower stage bladder cancers.
PMID: 12135697
Cytokeratin-20 (CK20
a
potential marker for bladder cancer, and is significantly more
sensitive than urinary cytology.
PMID: 9817302
DD23
quantification in single cells may be
particularly useful in targeting cystoscopic intervention for
recurrence monitoring and, because of its high specificity,
could be a tool for bladder cancer screening in high-risk
groups.
PMID: 8959319
expression can be used as an adjunct to
cytopathologic evaluation to enhance the sensitivity of urinary
cytology detection of TCC.
PMID: 12639642
EMA (Epithelial membrane antigen)
could be a valuable indicator for
histological grading or staging in pathological diagnosis and
for predicting the survival of bladder cancer patients.
PMID: 3303592
ERCC1
a novel
prognostic marker in advanced bladder cancer patients receiving
cisplatin-based chemotherapy.
PMID: 17229776
F-actin
could be an early and sensitive marker for
bladder cancer detection and risk prognostication.
PMID: 2032215
FAS
a
promising novel urinary marker for the detection of recurrent
superficial bladder cancer.
PMID: 16541433
FBP (fucose-binding proteins)
degree of expression of FBP binding sites
correlates with the increased metastatic potential of bladder
cancer and with poor patient survival times.
PMID: 8339222
GNAS1
a novel independent
prognostic marker for clinical outcome supporting a functional
role of G(alpha)s in bladder cancer progression.
PMID: 15824158
H19
can be used as a tumor marker in human
bladder carcinoma, where its expression indicates a more
malignant potential.
PMID: 7855987
Hyaluronic acid (HA), a
glycosaminoglycan and known to promote tumor cell adhesion and
migration, and its small fragments stimulate angiogenesis, is
a new sensitive
and specific urine marker for bladder cancer.
PMID: 9044859
Hyaluronan (HA)
HA in addition to being one of the best
markers for the initial evaluation of bladder carcinoma can be
used to determine the presence of a residual tumor. This is
associated with poor prognosis.
PMID: 16310928
Hyaluronidase
a
diagnostic urine marker for high-grade bladder cancer.
PMID: 9044860
hTERT
expression in urine sediments represents a
reliable tool for the detection of primary urothelial neoplasms,
equally specific, yet far more sensitive, than conventional
cytology.
PMID: 12893365
Lewis X antigen
Lewis X antigen on
exfoliated bladder cells enhances the detection of urothelial
tumor cells, particularly from low grade and low stage neoplasms.
PMID: 2405185
MMP-2 (matrix metalloproteinase-2)
MMP-2 protein
overexpression may be an independent prognostic biomarker for
bladder cancer progression.
PMID: 14624933
Neutral Endopeptidase
will serve as a new tumor marker for bladder
cancer as well as acute lymphatic leukemia.
PMID: 7627835
NMP22
(Nuclear Matrix Protein 22)
recurrence marker in bladder cancer.
PMID: 10900760
urinary NMP22 is a
useful tool for the screening of urothelial cancer in patients
with microscopic hematuria.
PMID: 9170522,
PMID: 9170521
Urinary NMP22 is a
useful diagnostic marker as a substitute for voided-urine
cytology for the surveillance of urothelial cancer.
PMID: 9076459
OCT-4
an
embryonic stem cell marker, is highly expressed in bladder
cancer.
PMID: 17205510
p53
can be used as a tumor marker for bladder
cancer.
PMID: 15503000
p53 nuclear
immunostaining yields clinically relevant information and may be
a useful tool for selecting patients with superficial bladder
cancer who might be resistant to BCG.
PMID: 15041112
Prothymosin-alpha
urine prothymosin-alpha has the potential of
being a useful tumor marker for the detection and follow-up of
bladder cancer.
PMID: 16461079
Survivin
a
sensitive marker for the noninvasive diagnosis of bladder
cancer.
PMID: 14713774
T antigen
useful to predict the
response of bladder tumors to treatment with bacillus Calmette-Guerin
and interleukin-2.
PMID: 2477561
Telomerase
an
important marker in the diagnosis of bladder cancer.
PMID: 15153335
the presence of telomerase in bladder washes may be a specific marker of bladder cancer, especially in low-grade tumors. PMID: 9533519
can be determined in voided urine samples of
patients with superficial bladder cancer. It has a higher
sensitivity and specificity than conventional urinary cytology
and is a good marker for diagnosis and follow-up of these
patients.
PMID: 10851728
Thymidine
Kinase 1 (TK-1)
a
proliferation marker for determining prognosis and monitoring
the surgical outcome of primary bladder carcinoma patients.
PMID: 16391869
Thymidine
Phosphorylase (TP)
a prognostic marker for predicting recurrence in primary superficial bladder cancer. PMID: 16820903
TPA (Tissue polypeptide antigen)
a useful marker not for the early detection
of bladder cancer but for the monitoring of the efficacy of a
treatment.
PMID: 8694544
Transferrin Receptors (TFR)
TFR activity in low grade superficial bladder
tumours is a useful marker for predicting the recurrence rate.
PMID: 2004229
UCA1 (urothelial carcinoma associated 1)
a very sensitive and specific unique marker
for bladder cancer.
PMID: 16914571
Uroplakin II (UP II)
might be a more useful
marker than CK 20 for detecting micrometastases of bladder
cancer in the pelvic lymph nodes, although a greater number of
patients and longer followup are needed to come to a definitive
conclusion.
PMID: 16280744
XIAP
a prognostic marker of early recurrence of nonmuscular invasive bladder cancer. PMID: 17439739
Other Bladder Cancer Markers
Resting NOR had a predictive value in the
prognosis of patients with invasive bladder tumor.
PMID: 11564895
Microvessel density (MVD) in bladder
carcinoma correlates with grade, stage and malignant potential
of the tumor.
PMID: 15783115
Hydronephrosis is a prognostic marker in bladder cancer in a
cystectomy-only series.
PMID: 16904815
noninvasive urinary glycosaminoglycan
analysis may well provide a new biochemical approach for
detecting and monitoring the pathogeneses of bladder cancer.
PMID: 6793229