Construction of cDNA bank from biopsy specimens for multiple gene analysis of cancer.

نویسندگان

  • T Ishikawa
  • Y Ichikawa
  • Y Miura
  • M Momiyama
  • C Keller
  • K Koo
  • T Akitaya
  • H Shimada
  • M Mitsuhashi
چکیده

We constructed a "cDNA bank" of human colorectal cancer and surrounding normal tissues with our unique mRNA assay system. Total nucleic acids extracted from patients' tissues were applied to 96-well plates, where poly(dT) sequences of oligonucleotides were immobilized. After hybridization, the cDNA was reverse-transcribed on the plate with the captured mRNA as a template, followed by synthesis of double-stranded (ds) cDNA. The resulting sense cDNA was removed from the plate, then used in PCR for analysis of various genes. The sense strand of the cDNA was repeatedly synthesized by using the immobilized antisense cDNA as a template even from plates used once and stored at 4 degrees C for as long as 6 months. Furthermore, the results of PCR could be easily compared among different specimens if the same amount of total mRNA were applied to the plate for the ds cDNA synthesis. This demonstrated that the cDNA bank constructed from clinical materials provides almost unlimited supplies of cDNA for multiple gene analysis of cancer.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The mRNAexpression study on small amount of Theileria annulata lymph node biopsy sample using SMART-cDNA technology

BACKGROUND: A major issue in many gene expressionstudies utilizing small amount of biological materials is thelimited quantity of RNApurified from clinical samples, which isoften used for RT-PCR or standard Northern blot analysis.OBJECTIVES: The SMART cDNA synthesis method and subsequentSMART-cDNA-PCR technique was used to analyse 3genes in macroschizonts of Theileria annulata in small lymphnod...

متن کامل

The Prevalence of P53 Mutations in Laryngeal Cancer in Kerman

Background &Aims: Laryngeal cancer is the second common cancer of respiratory tract, following the lung cancer. Carcinogenesis is a complex multistage process; molecular genetics has provided the evidence that activation of proto-oncogene and loss or inactivation of tumor suppressor genes (TSG) are involved in a large number of malignancies. One of the earliest significant tumor suppressor gene...

متن کامل

بررسی بیان ژن اینترلوکین-11 (IL-11) در بیماری ‌های خوش خیم و بدخیم مخاط معده

Background and purpose: Gastric cancer has been considered as the second lethal cancer throughout the world and the incidence of this cancer in Ïran is 25 in 10000 people per year. Ïnterleukin-11 (ÏL-11), a member of ÏL-6 family, may play some role in developing gastric cancer via activation of the JÂK/STÂT signaling pathway. Ïn this study, the level of ÏL-11 gene expression was determined in g...

متن کامل

Prevalence of Nucleotide Alterations of EGFR Gene in Patients with Esophageal Squamous Cell Carcinoma in Kerman

Background & Aims: Esophageal Cancer is the sixth fatal cancer in the world. Squamous and adenocarcinoma account for 95% of esophageal cancer. The expression of EGFR has a role in the pathophysiology of epidermal-based malignancies such as esophageal cancer. EGFR is also an important criterion in the evaluation of disease staging and prognosis. The aim of this study was to survey the prevalence...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Clinical chemistry

دوره 43 5  شماره 

صفحات  -

تاریخ انتشار 1997