Loktev A, Lindner T, Mier W et al (2018) A tumor-imaging method targeting cancer-associated fibroblasts. J Nucl Med 59:1423–1429

Article  CAS  PubMed  PubMed Central  Google Scholar 

Hamson EJ, Keane FM, Tholen S et al (2014) Understanding fibroblast activation protein (FAP): substrates, activities, expression and targeting for cancer therapy. Proteomics Clin Appl 8:454–463

Article  CAS  PubMed  Google Scholar 

Dendl K, Koerber SA, Finck R et al (2021) 68Ga-FAPI-PET/CT in patients with various gynecological malignancies. Eur J Nucl Med Mol Imaging 48:4089–4100

Article  CAS  PubMed  PubMed Central  Google Scholar 

Kömek H, Gündoğan C, Etem H et al (2021) A case with 68Ga-FAPI positive and 18F-FDG negative breast cancer. Mol Imaging Radionucl Ther 30:201–204

Article  PubMed  PubMed Central  Google Scholar 

Ding F, Huang C, Liang C et al (2021) 68Ga-FAPI-04 vs. 18F-FDG in a longitudinal preclinical PET imaging of metastatic breast cancer. Eur J Nucl Med Mol Imaging 49:290–300

Article  CAS  PubMed  Google Scholar 

Backhaus P, Burg MC, Roll W et al (2022) Simultaneous FAPI PET/MRI targeting the fibroblast-activation protein for breast cancer. Radiology 302:39–47

Article  PubMed  Google Scholar 

Kömek H, Can C, Güzel Y et al (2021) 68Ga-FAPI-04 PET/CT, a new step in breast cancer imaging: a comparative pilot study with the 18F-FDG PET/CT. Ann Nucl Med 35:744–752

Article  PubMed  Google Scholar 

Kratochwil C, Flechsig P, Lindner T et al (2019) 68Ga-FAPI PET/CT: tracer uptake in 28 different kinds of cancer. J Nucl Med 60:801

Article  CAS  PubMed  PubMed Central  Google Scholar 

Gündoğan C, Güzel Y, Can C et al (2021) FAPI-04 uptake in healthy tissues of cancer patients in 68Ga-FAPI-04 PET/CT Imaging. Contrast Media Mol Imaging 2021:e9750080

Article  Google Scholar 

Nissan N, Sandler I, Eifer M et al (2021) Physiologic and hypermetabolic breast 18F FDG uptake on PET/CT during lactation. Eur Radiol 31:163–170

Article  CAS  PubMed  Google Scholar 

Vranjesevic D, Schiepers C, Silverman DH et al (2003) Relationship between 18F-FDG uptake and breast density in women with normal breast tissue. J Nucl Med 44:1238–1242

PubMed  Google Scholar 

Lin C-Y, Ding H-J, Liu C-S et al (2007) Correlation between the intensity of breast FDG uptake and menstrual cycle. Acad Radiol 14:5

Article  Google Scholar 

Wang LJ, Zhang Y, Wu HB (2021) Intense diffuse uptake of 68Ga-FAPI-04 in the breasts found by PET/CT in a patient with advanced nasopharyngeal carcinoma. Clin Nucl Med 46:e293–e295

Article  PubMed  Google Scholar 

Alçın G, Arslan E, Aksoy T et al (2023) 68Ga-FAPI-04 PET/CT in selected breast cancer patients with low FDG affinity: a head-to-head comparative study. Clin Nucl Med 48:e420–e430

Article  PubMed  Google Scholar 

Hilton HN, Clarke CL, Graham JD (2018) Estrogen and progesterone signalling in the normal breast and its implications for cancer development. Mol Cell Endocrinol 466:2–14

Article  CAS  PubMed  Google Scholar 

Itriyeva K (2022) The normal menstrual cycle. Curr Probl Pediatr Adolesc Health Care 52:101183

Article  PubMed  Google Scholar 

Vasquez YM (2018) Estrogen-regulated transcription: mammary gland and uterus. Steroids 133:82–86

Article  CAS  PubMed  Google Scholar 

Gusterson BA, Stein T (2012) Human breast development. Semin Cell Dev Biol 23:567–573

Article  PubMed  Google Scholar 

Vogel PM, Georgiade NG, Fetter BF et al (1981) The correlation of histologic changes in the human breast with the menstrual cycle. Am J Pathol 104:23–34

CAS  PubMed  PubMed Central  Google Scholar 

Longacre TA, Bartow SA (1986) A correlative morphologic study of human breast and endometrium in the menstrual cycle. Am J Surg Pathol 10:382–393

Article  CAS  PubMed  Google Scholar 

Potten CS, Watson RJ, Williams GT et al (1988) The effect of age and menstrual cycle upon proliferative activity of the normal human breast. Br J Cancer 58:163–170

Article  CAS  PubMed  PubMed Central  Google Scholar 

Nilsson S, Mäkelä S, Treuter E et al (2001) Mechanisms of estrogen action. Physiol Rev 81:1535–1565

Article  CAS  PubMed  Google Scholar 

Sz H, Ml L (1985) Estrogen responsiveness of normal mouse mammary cells in primary cell culture: association of mammary fibroblasts with estrogenic regulation of progesterone receptors. Endocrinology 116:1835–1844

Article  Google Scholar 

Uhlén M, Fagerberg L, Hallström BM et al (2015) Tissue-based map of the human proteome. Science 347:1260419

Article  PubMed  Google Scholar 

Liu R, Li H, Liu L et al (2012) Fibroblast activation protein: a potential therapeutic target in cancer. Cancer Biol Ther 13:123–129

Article  PubMed  Google Scholar 

Navarrete MA, Nazario AC, Simoes MJ et al (1998) Morphometric analysis of fibroblasts of the mammary lobular stroma during the follicular and luteal phases of the menstrual cycle. Morphol Bull Assoc Anat 82:7–10

CAS  Google Scholar 

Taraborrelli S (2015) Physiology, production and action of progesterone. Acta Obstet Gynecol Scand 94:8–16

Article  CAS  PubMed  Google Scholar 

Hicks RJ, Binns D, Stabin MG (2001) Pattern of uptake and excretion of (18)F-FDG in the lactating breast. J Nucl Med 42:1238–1242

CAS  PubMed  Google Scholar 

Nakajima E, Iwase T, Miyagi Y et al (2020) Association of parity and infant feeding method with breast density on mammography. Acad Radiol 27:e24–e26

Article  PubMed  Google Scholar